Deepwater Horizon oil spill‎

{{Main|Deepwater Horizon}}

Deepwater Horizon was a 10-year-old{{cite book |last1=Konrad |first1=John |last2=Shroder |first2=Tom |title=Fire on the horizon the untold story of the Gulf oil disaster |date=2011 |publisher=HarperLuxe |location=New York |isbn=9780062066541 |page=3}} semi-submersible, mobile, floating, dynamically positioned drilling rig that could operate in waters up to {{cvt|10000|ft}} deep. Built by South Korean company Hyundai Heavy Industries and owned by Transocean, the rig operated under the Marshallese flag of convenience, and was chartered to BP from March 2008 to September 2013. It was drilling a deep exploratory well, {{cvt|18360|ft}} below sea level, in approximately {{cvt|5100|ft}} of water. The well is situated in the Macondo Prospect in Mississippi Canyon Block 253 (MC253) of the Gulf of Mexico, in the United States' exclusive economic zone. The Macondo well is found roughly {{cvt|41|mi}} off the Louisiana coast. BP was the operator and principal developer of the Macondo Prospect with a 65% share, while 25% was owned by Anadarko Petroleum, and 10% by MOEX Offshore 2007, a unit of Mitsui.

{{Main|Deepwater Horizon explosion}}

File:Deepwater Horizon fire seen by US Coast Guard helicopter.ogv

At approximately {{Nowrap|7:45 pm CDT}}, on 20 April 2010, high-pressure methane gas from the well expanded into the marine riser and rose into the drilling rig, where it ignited and exploded, engulfing the platform. Eleven missing workers were never found despite a three-day U.S. Coast Guard (USCG) search operation and are believed to have died in the explosion. Ninety-four crew members were rescued by lifeboat or helicopter, 17 of whom were treated for injuries. The Deepwater Horizon sank on the morning of 22 April 2010.

{{Main|Volume and extent of the Deepwater Horizon oil spill}}

{{For timeline|Timeline of the Deepwater Horizon oil spill}}

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The oil leak was discovered on the afternoon of 22 April 2010 when a large oil slick began to spread at the former rig site. The oil flowed for 87 days. BP originally estimated a flow rate of {{convert|1000|to|5000|oilbbl/d|abbr=~}}. The Flow Rate Technical Group (FRTG) estimated the initial flow rate was {{cvt|62000|oilbbl/d}}. The total estimated volume of leaked oil approximated Orders of magnitude (volume)#Terrestrial with plus or minus 10% uncertainty, including oil that was collected, making it the world's largest accidental spill.{{cite news |first=Maureen |last=Hoch |url=https://www.pbs.org/newshour/rundown/2010/08/new-estimate-puts-oil-leak-at-49-million-barrels.html |title=New Estimate Puts Gulf Oil Leak at 205 Million Gallons |publisher=MacNeil/Lehrer Productions |work=PBS NewsHour |date=2 August 2010 |access-date=19 December 2010 |archive-date=22 January 2014 |archive-url=https://web.archive.org/web/20140122073506/http://www.pbs.org/newshour/rundown/2010/08/new-estimate-puts-oil-leak-at-49-million-barrels.html |url-status=dead }} BP challenged the higher figure, saying that the government overestimated the prefaced volume. Internal emails released in 2013 showed that one BP employee had estimates that matched those of the FRTG, and shared the data with supervisors, but BP continued with their lower number.{{cite news |url=http://www.huffingtonpost.com/2012/12/08/bp-oil-spill-flow-rate-emails_n_2260275.html |work=Huffington Post |first=John |last=Rudolf |title=New BP Oil Spill Emails Suggest Cover-Up |date=8 December 2012}} The company argued that government figures do not reflect over {{cvt|810000|oilbbl|MUSgal m3}} of oil that was collected or burned before it could enter the Gulf waters.

According to the satellite images, the spill directly affected {{cvt|70000|sqmi}} of ocean, comparable to the area of Oklahoma.{{cite journal |title=Impacts, Perception, and Policy Implications of the BP/Deepwater Horizon Oil and Gas Disaster |first1=Elliott A. |last1=Norse |first2=John |last2=Amos |journal=Environmental Law Reporter |url=http://mcbi.marine-conservation.org/publications/pub_pdfs/Norse-and-Amos-2010.pdf |date=November 2010 |volume=40 |issue=11 |pages=11058–11073 |access-date=22 February 2013 |issn=0046-2284}} By early June 2010, oil had washed up on {{cvt|125|mi}} of Louisiana's coast and along the Mississippi, Florida, and Alabama coastlines. Oil sludge appeared in the Intracoastal Waterway and on Pensacola Beach and the Gulf Islands National Seashore. In late June, oil reached Gulf Park Estates, its first appearance in Mississippi. In July, tarballs reached Grand Isle and the shores of Lake Pontchartrain. In September a new wave of oil suddenly coated {{cvt|16|mi}} of Louisiana coastline and marshes west of the Mississippi River in Plaquemines Parish. In October, weathered oil reached Texas. {{as of|2011|July|}}, about {{cvt|491|mi}} of coastline in Louisiana, Mississippi, Alabama and Florida were contaminated by oil and a total of {{cvt|1074|mi}} had been oiled since the spill began. {{as of|2012|December|}}, {{cvt|339|mi}} of coastline remain subject to evaluation and/or cleanup operations. The reported 3.19 million barrels of spilled oil was not the only effect of this disaster. A report detailed the release of thousands of tons of hydrocarbon gases (HC) into the atmosphere.{{Cite journal|date=15 September 2016|title=Environmental effects of the Deepwater Horizon oil spill: A review|url=https://www.sciencedirect.com/science/article/abs/pii/S0025326X16304313|journal=Marine Pollution Bulletin|language=en|volume=110|issue=1|pages=28–51|doi=10.1016/j.marpolbul.2016.06.027|issn=0025-326X|hdl=11250/2569780|hdl-access=free|last1=Beyer|first1=Jonny|last2=Trannum|first2=Hilde C.|last3=Bakke|first3=Torgeir|last4=Hodson|first4=Peter V.|last5=Collier|first5=Tracy K.|pmid=27301686|bibcode=2016MarPB.110...28B }}

Concerns were raised about the appearance of underwater, horizontally-extended plumes of dissolved oil. Researchers concluded that deep plumes of dissolved oil and gas would likely remain confined to the northern Gulf of Mexico and that the peak impact on dissolved oxygen would be delayed and long-lasting.

Two weeks after the wellhead was capped on 15 July 2010, the surface oil appeared to have dissipated, while an unknown amount of subsurface oil remained. Estimates of the residual ranged from a 2010 NOAA report that claimed about half of the oil remained below the surface to independent estimates of up to 75%.

That means over {{cvt|100|e6USgal}} (2.4 million barrels) remained in the Gulf. {{as of|2011|January|}}, tar balls, oil sheen trails, fouled wetlands marsh grass and coastal sands were still evident. Subsurface oil remained offshore and in fine silts. In April 2012, oil was still found along as much as {{cvt|200|mi}} of Louisiana coastline and tar balls continued to wash up on the barrier islands. In 2013, some scientists at the Gulf of Mexico Oil Spill and Ecosystem Science Conference said that as much as one-third of the oil may have mixed with deep ocean sediments, where it risks damage to ecosystems and commercial fisheries.

In 2013, more than {{cvt|4600000|lb|t}} of "oiled material" was removed from the Louisiana coast.{{cite web |url=http://blog.nwf.org/2013/06/40000-pound-tar-mat-reminds-us-the-oil-spill-is-not-over/ |title=40,000-Pound Tar Mat Reminds Us the Oil Spill is Not Over |date=27 June 2013}} Although only "minute" quantities of oil continued to wash up in 2013, patches of tar balls were still being reported almost every day from Alabama and Florida Panhandle beaches. Regular cleanup patrols were no longer considered justified but cleanup was being conducted on an as-needed basis, in response to public reports.{{cite news |url=http://www.huffingtonpost.com/2013/06/16/gulf-oil-spill-cleanup_n_3451488.html |work=Huffington Post |title=BP Pulls Out of Gulf Cleanup, Leaving Unanswered Questions Behind |date=16 June 2013}}

It was first thought that oil had not reached as far as Tampa Bay, Florida; however, a study done in 2013 found that one of the plumes of dispersant-treated oil had reached a shelf {{cvt|80|mi}} off the Tampa Bay region. According to researchers, there is "some evidence it may have caused lesions in fish caught in that area".{{cite journal |title=Toxicity and Mutagenicity of Gulf of Mexico Waters During and After the Deepwater Horizon Oil Spill |first1=John H. |last1=Paul |first2=David |last2=Hollander |first3=Paula |last3=Coble |first4=Kendra L. |last4=Daly |author-link4=Kendra Daly|first5=Sue |last5=Murasko |first6=David |last6=English |first7=Jonelle |last7=Basso |first8=Jennifer |last8=Delaney |first9=Lauren |last9=McDaniel|first10=Charles W.|last10=Kovach |s2cid=206970807 |date=3 September 2013 |journal=Environ. Sci. Technol. |volume=47 |issue=17 |pages=9651–9659 |doi=10.1021/es401761h |pmid=23919351 |bibcode=2013EnST...47.9651P | issn=0013-936X}}

{{Main|Efforts to stem the Deepwater Horizon oil spill}}

{{See also|Offshore oil spill prevention and response}}

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File:Oil containment chamber Port Fourchon LA 100426-G-8744K-021.jpg under construction in Port Fourchon, Louisiana, at Wild Well Control on 26 April]]

First, BP unsuccessfully attempted to close the blowout preventer valves on the wellhead with remotely operated underwater vehicles. Next, it placed a 125-tonne (280,000 lb) containment dome over the largest leak and piped the oil to a storage vessel. While this technique had worked in shallower water, it failed here when gas combined with cold water to form methane hydrate crystals that blocked the opening at the top of the dome. Pumping heavy drilling fluids into the blowout preventer to restrict the flow of oil before sealing it permanently with cement ("top kill") also failed.

BP then inserted a riser insertion tube into the pipe and a stopper-like washer around the tube plugged at the end of the riser and diverted the flow into the insertion tube. The collected gas was flared and oil stored on board the drillship Discoverer Enterprise. Before the tube was removed, it collected {{cvt|924000|USgal|oilbbl m3}} of oil. On 3 June 2010, BP removed the damaged drilling riser from the top of the blowout preventer and covered the pipe by the cap which connected it to another riser. On 16 June, a second containment system connected directly to the blowout preventer began carrying oil and gas to service vessels, where it was consumed in a clean-burning system. The United States government's estimates suggested the cap and other equipment were capturing less than half of the leaking oil. On 10 July, the containment cap was removed to replace it with a better-fitting cap ("Top Hat Number 10"). Mud and cement were later pumped in through the top of the well to reduce the pressure inside it (which did not work either). A final device was created to attach a chamber of larger diameter than the flowing pipe with a flange that bolted to the top of the blowout preventer and a manual valve set to close off the flow once attached. On 15 July, the device was secured and time was taken closing the valves to ensure the attachment under increasing pressure until the valves were closed completing the temporary measures.

Transocean's Development Driller III started drilling a first relief well on 2 May 2010. GSF Development Driller II started drilling a second relief on 16 May 2010. On 3 August 2010, first test oil and then drilling mud was pumped at a slow rate of approximately {{cvt|2|oilbbl|L}} per minute into the well-head. Pumping continued for eight hours, at the end of which the well was declared to be "in a static condition." On 4 August 2010, BP began pumping cement from the top, sealing that part of the flow channel permanently.

On 3 September 2010, the 300-ton failed blowout preventer was removed from the well and a replacement blowout preventer was installed. On 16 September 2010, the relief well reached its destination and pumping of cement to seal the well began. On 19 September 2010, National Incident Commander Thad Allen declared the well "effectively dead" and said that it posed no further threat to the Gulf.

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In May 2010, BP admitted they had "discovered things that were broken in the sub-surface" during the "top kill" effort.

Oil slicks were reported in March and August 2011, in March and October 2012,Aeppli_2013 and in January 2013. Repeated scientific analyses confirmed that the sheen was a chemical match for oil from the Macondo well.

The USCG initially said the oil was too dispersed to recover and posed no threat to the coastline, but later warned BP and Transocean that they might be held financially responsible for cleaning up the new oil. USGS director Marcia McNutt stated that the riser pipe could hold at most {{cvt|1000|oilbbl}} because it is open on both ends, making it unlikely to hold the amount of oil being observed.

In October 2012, BP reported that they had found and plugged leaking oil from the failed containment dome, now abandoned about {{cvt|1500|ft}} from the main well. In December 2012, the USCG conducted a subsea survey; no oil coming from the wells or the wreckage was found and its source remains unknown. In addition, a white, milky substance was observed seeping from the wreckage. According to BP and the USCG, it is "not oil and it's not harmful."

In January 2013, BP said that they were continuing to investigate possible sources of the oil sheen. Chemical data implied that the substance might be residual oil leaking from the wreckage. If that proves to be the case, the sheen can be expected to eventually disappear. Another possibility is that it is formation oil escaping from the subsurface, using the Macondo well casing as flow conduit, possibly intersecting a naturally occurring fault, and then following that to escape at the surface some distance from the wellhead. If it proves to be oil from the subsurface, then that could indicate the possibility of an indefinite release of oil. The oil slick was comparable in size to naturally occurring oil seeps and was not large enough to pose an immediate threat to wildlife.{{cite news |url=http://science.nbcnews.com/_news/2013/01/31/16792048-mystery-oil-sheen-grows-near-site-of-bp-gulf-disaster-says-researcher |title=Mystery 'oil sheen' grows near site of BP Gulf disaster, says researcher |work=NBC News |date=31 January 2013 |access-date=21 February 2014 |author=Roach, John}}

{{main|Deepwater Horizon oil spill response}}

The fundamental strategies for addressing the spill were containment, dispersal and removal. In summer 2010, approximately 47,000 people and 7,000 vessels were involved in the project. By 3 October 2012, federal response costs amounted to $850 million, mostly reimbursed by BP. {{as of|2013|January|}}, 935 personnel were still involved. By that time cleanup had cost BP over $14 billion.

It was estimated with plus-or-minus 10% uncertainty that {{convert|4.9|e6oilbbl|m3}} of oil was released from the well; {{convert|4.1|e6oilbbl|m3}} of oil went into the Gulf. The report led by the Department of the Interior and the NOAA said that "75% [of oil] has been cleaned up by Man or Mother Nature"; however, only about 25% of released oil was collected or removed while about 75% of oil remained in the environment in one form or another. In 2012, Markus Huettel, a benthic ecologist at Florida State University, maintained that while much of BP's oil was degraded or evaporated, at least 60% remains unaccounted for.

In May 2010, a local native set up a network for people to volunteer their assistance in cleaning up beaches. Boat captains were given the opportunity to offer the use of their boats to help clean and prevent the oil from further spreading. To assist with the efforts the captains had to register their ships with the Vessels of Opportunity; however, an issue arose when more boats registered than actually participated in the clean-up efforts – only a third of the registered boats. Many local supporters were disappointed with BP's slow response, prompting the formation of The Florida Key Environmental Coalition. This coalition gained significant influence in the clean-up of the oil spill to try to gain some control over the situation.{{Cite web |url=https://nvdatabase.swarthmore.edu/content/florida-keys-environmentalists-act-protect-against-bp-oil-spill-summer-2010 |title=Florida Keys environmentalists act to protect against BP oil spill summer 2010 {{!}} Global Nonviolent Action Database|website=nvdatabase.swarthmore.edu|language=en|access-date=28 September 2017}}

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Containment booms stretching over {{cvt|4200000|ft|km}} were deployed, either to corral the oil or as barriers to protect marshes, mangroves, shrimp/crab/oyster ranches or other ecologically sensitive areas. Booms extend {{cvt|18|-|48|in|m}} above and below the water surface and were effective only in relatively calm and slow-moving waters. Including one-time use sorbent booms, a total of {{cvt|13300000|ft|km}} of booms were deployed. Booms were criticized for washing up on the shore with the oil, allowing oil to escape above or below the boom, and for ineffectiveness in more than three- to four-foot (90–120 cm) waves.

The Louisiana barrier island plan was developed to construct barrier islands to protect the coast of Louisiana. The plan was criticised for its expense and poor results. Critics allege that the decision to pursue the project was political with little scientific input. The EPA expressed concern that the booms would threaten wildlife.

For a time, a group called Matter of Trust, citing insufficient availability of manufactured oil absorption booms, campaigned to encourage hair salons, dog groomers and sheep farmers to donate hair, fur and wool clippings, stuffed in pantyhose or tights, to help contain oil near impacted shores, a technique dating back to the Exxon Valdez disaster.{{cite web |title=How can human hair mop up the oil spill? |url=http://news.bbc.co.uk/2/hi/uk_news/magazine/8674539.stm |website=BBC News |access-date=5 June 2018 |date=11 May 2010}}{{cite news |last1=Farhi |first1=Paul |title=Matter of Trust creates hair-and-nylon booms to help clean up BP oil spill in Gulf |url=https://www.washingtonpost.com/wp-dyn/content/article/2010/05/07/AR2010050704893.html |newspaper=Washington Post |access-date=5 June 2018 |date=8 May 2010}}

File:C-130 support oil spill cleanup.jpg dispersant onto the Gulf of Mexico|alt=A large four propeller airplane sprays Corexit onto oil-sheen water]]

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The spill was also notable for the volume of Corexit oil dispersant used and for application methods that were "purely experimental". Altogether, {{cvt|1.84|e6USgal|m3}} of dispersants were used; of this, {{cvt|771000|USgal|m3}} were released at the wellhead. Subsea injection had never previously been tried but, due to the spill's unprecedented nature, BP, together with USCG and EPA, decided to use it. Over 400 sorties were flown to release the product. Although usage of dispersants was described as "the most effective and fast moving tool for minimizing shoreline impact", the approach continues to be investigated.

A 2011 analysis conducted by Earthjustice and Toxipedia showed that the dispersant could contain cancer-causing agents, hazardous toxins and endocrine-disrupting chemicals.{{medical citation needed|date=October 2023}} Environmental scientists expressed concerns that the dispersants add to the toxicity of a spill, increasing the threat to sea turtles and bluefin tuna. The dangers are even greater when poured into the source of a spill, because they are picked up by the current and wash through the Gulf. According to BP and federal officials, dispersant use stopped after the cap was in place; however, marine toxicologist Riki Ott wrote in an open letter to the EPA that Corexit use continued after that date and a GAP investigation stated that "[a] majority of GAP witnesses cited indications that Corexit was used after [July 2010]".{{cite web |title=Corexit: Deadly Dispersant in Oil Spill Cleanup |url=http://www.whistleblower.org/program-areas/public-health/corexit |work=GAP |date=19 April 2013 |access-date=1 April 2014}}

According to a NALCO manual obtained by GAP, Corexit 9527 is an "eye and skin irritant. Repeated or excessive exposure ... may cause injury to red blood cells (hemolysis), kidney or the liver". The manual adds: "Excessive exposure may cause central nervous system effects, nausea, vomiting, anesthetic or narcotic effects". It advises, "Do not get in eyes, on skin, on clothing", and "Wear suitable protective clothing". For Corexit 9500, the manual advised, "Do not get in eyes, on skin, on clothing", "Avoid breathing vapor", and "Wear suitable protective clothing". According to FOIA requests obtained by GAP, neither the protective gear nor the manual were distributed to Gulf oil spill cleanup workers.

Corexit EC9500A and Corexit EC9527A were the principal variants. The two formulations are neither the least toxic, nor the most effective, among EPA's approved dispersants, but BP said it chose to use Corexit because it was available the week of the rig explosion. On 19 May, the EPA gave BP 24 hours to choose less toxic alternatives to Corexit from the National Contingency Plan Product Schedule and begin applying them within 72 hours of EPA approval or provide a detailed reasoning why no approved products met the standards. On 20 May, BP determined that none of the alternative products met all three criteria of availability, non-toxicity and effectiveness. On 24 May, EPA Administrator Lisa P. Jackson ordered EPA to conduct its own evaluation of alternatives and ordered BP to reduce dispersant use by 75%.{{cite news |url=https://www.nytimes.com/2010/08/01/science/earth/01dispersants.html |work=The New York Times |first=Matthew L. |last=Wald |title=BP Used Much Dispersant Despite E.P.A. Directive of Rarely |date=31 July 2010}} BP reduced Corexit use by {{cvt|25689|to|23250|USgal|L}} per day, a 9% decline. On 2 August 2010, the EPA said dispersants did no more harm to the environment than the oil and that they stopped a large amount of oil from reaching the coast by breaking it down faster. However, some independent scientists and EPA's own experts continue to voice concerns about the approach.

Underwater injection of Corexit into the leak may have created the oil plumes which were discovered below the surface. Because the dispersants were applied at depth, much of the oil never rose to the surface. One plume was {{cvt|22|mi}} long, more than {{cvt|1|mi|m}} wide and {{cvt|650|ft}} deep. In a major study on the plume, experts were most concerned about the slow pace at which the oil was breaking down in the cold, {{cvt|40|°F|°C|sp=us}} water at depths of {{cvt|3000|ft|-2}}.

In late 2012, a study from Georgia Tech and Universidad Autonoma de Aguascalientes in Environmental Pollution journal reported that Corexit used during the BP oil spill had increased the toxicity of the oil by 52 times.{{cite magazine |url=http://www.newsweek.com/what-bp-doesnt-want-you-know-about-2010-gulf-spill-63015 |title=Drowning in Oil |date=22 April 2013 |magazine=Newsweek}} The scientists concluded that "Mixing oil with dispersant increased toxicity to ecosystems" and made the gulf oil spill worse.{{cite magazine |url=https://www.motherjones.com/blue-marble/2012/12/chemical-dispersant-made-bps-gulf-oilspill-52-times-more-toxic |title=Chemical Dispersant Made BP Oilspill 52 Times More Toxic |magazine=Mother Jones}}{{cite web |url=https://www.nbcnews.com/id/wbna50032789 |title=Dispersant makes oil from spills 52 times more toxic |date=30 November 2012 |work=NBC News}}

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The three basic approaches for removing the oil from the water were: combustion, offshore filtration, and collection for later processing. USCG said {{cvt|33000000|USgal|m3}} of tainted water was recovered, including {{cvt|5000000|USgal|m3}} of oil. BP said {{cvt|826800|oilbbl}} had been recovered or flared. It is calculated that about 5% of leaked oil was burned at the surface and 3% was skimmed. On the most demanding day, 47,849 people were assigned on the response works and over 6,000 Marine vessels, 82 helicopters, and 20 fixed-wing aircraft were involved.

From April to mid-July 2010, 411 controlled in-situ fires remediated approximately {{cvt|265000|oilbbl|MUSgal m3}}. The fires released small amounts of toxins, including cancer-causing dioxins. According to EPA's report, the released amount is not enough to pose an added cancer risk to workers and coastal residents, while a second research team concluded that there was only a small added risk.

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Oil was collected from water by using skimmers. In total, 2,063 various skimmers were used. For offshore, more than 60 open-water skimmers were deployed, including 12 purpose-built vehicles. EPA regulations prohibited skimmers that left more than 15 parts per million (ppm) of oil in the water. Many large-scale skimmers exceeded the limit. Due to use of Corexit, the oil was too dispersed to collect, according to a spokesperson for shipowner TMT. In mid-June 2010, BP ordered 32 machines that separate oil and water, with each machine capable of extracting up to {{cvt|2000|oilbbl/d}}. After one week of testing, BP began to proceed and, by 28 June, had removed {{cvt|890000|oilbbl|m3}}.

After the well was capped, the cleanup of shore became the main task of the response works. Two main types of affected coast were sandy beaches and marshes. On beaches, the main techniques were sifting sand, removing tar balls, and digging out tar mats manually or by using mechanical devices. For marshes, techniques such as vacuum and pumping, low-pressure flush, vegetation cutting, and bioremediation were used.

Dispersants are said to facilitate the digestion of the oil by microbes but conflicting results have been reported on this in the context of the Deepwater Horizon oil spill.{{Cite book |url=https://www.nap.edu/catalog/25161 |title=The Use of Dispersants in Marine Oil Spill Response |date=24 April 2020 |publisher=National Academies Press |others=Committee on the Evaluation of the Use of Chemical Dispersants in Oil Spill Response, Ocean Studies Board, Board on Environmental Studies and Toxicology, Division on Earth and Life Studies, National Academies of Sciences, Engineering, and Medicine |isbn=978-0-309-47818-2 |location=Washington, D.C. |doi=10.17226/25161|pmid=32379406 |bibcode=2020udmo.book.....N |s2cid=133873607 }} Mixing dispersants with oil at the wellhead would keep some oil below the surface and, in theory, allow microbes to digest the oil before it reached the surface. Various risks were identified and evaluated, in particular, that an increase in microbial activity might reduce subsea oxygen levels, threatening fish and other animals.

Several studies suggest that microbes successfully consumed part of the oil. By mid-September, other research claimed that microbes mainly digested natural gas rather than oil.{{cite magazine |url=http://www.scientificamerican.com/article/how-microbes-helped-clean-bp-s-oil-spill |title=How Microbes Helped Clean BP's Oil Spill |first=David |last=Biello |magazine=Scientific American}} David L. Valentine, a professor of microbial geochemistry at UC Santa Barbara, said that the capability of microbes to break down the leaked oil had been greatly exaggerated. However, biogeochemist Chris Reddy said natural microorganisms are a big reason why the oil spill in the Gulf of Mexico was not far worse.{{cite web |last1=Biello |first1=David |title=How Microbes Helped Clean BP's Oil Spill |url=https://www.scientificamerican.com/article/how-microbes-helped-clean-bp-s-oil-spill/ |website=Scientific American |access-date=26 December 2017 |date=28 April 2015 |quote=The microbes did a spectacular job of eating a lot of the natural gas}}{{cite web |last1=Biello |first1=David |title=Slick Solution: How Microbes Will Clean Up the Deepwater Horizon Oil Spill |url=https://www.scientificamerican.com/article/how-microbes-clean-up-oil-spills/ |website=Scientific American |access-date=26 December 2017 |date=25 May 2010}}

Genetically modified Alcanivorax borkumensis was added to the waters to speed digestion. The delivery method of microbes to oil patches was proposed by the Russian Research and Development Institute of Ecology and the Sustainable Use of Natural Resources.{{citation needed|date=February 2023}}

On 18 May 2010, BP was designated the lead "Responsible Party" under the Oil Pollution Act of 1990, which meant that BP had operational authority in coordinating the response.Marisa Taylor and Renee Schoof for McClatchy Newspapers, 18 May 2010. [http://www.mcclatchydc.com/2010/05/18/94415/bps-secrecy-keep-facts-on-gulf.html#ixzz0oOgEMK7i#storylink=cpy BP withholds oil spill facts — and government lets it] {{Webarchive|url=https://web.archive.org/web/20130325152418/http://www.mcclatchydc.com/2010/05/18/94415/bps-secrecy-keep-facts-on-gulf.html#ixzz0oOgEMK7i |date=25 March 2013 }}Gerald Baron for Crisisblogger, 8 June 2012. [http://ww2.crisisblogger.com/2012/06/white-house-and-bp-legal-wrangling-more-damage-to-collaborative-work-in-disaster-response/ White House and BP legal wrangling: more damage to collaborative work in disaster response]

The first video images were released on 12 May, and further video images were released by members of Congress who had been given access to them by BP.Jeremy W Peters for The New York Times, 9 June 2010 [https://www.nytimes.com/2010/06/10/us/10access.html Efforts to Limit the Flow of Spill News]

During the spill response operations, at the request of the Coast Guard, the Federal Aviation Administration (FAA) implemented a {{cvt|900|sqmi|adj=on}} temporary flight restriction zone over the operations area.{{cite news |url=http://www.justhelicopters.com/LinkClick.aspx?fileticket=MolrT7%2FHzdY%3D&tabid=434 |title=Deepwater Horizon NOTAM Overview: Air Traffic Organization, System Operations, Security |publisher=Federal Aviation Administration |date=25 July 2010 |access-date=11 April 2013 |format=PPT }}{{dead link|date=June 2022|bot=medic}}{{cbignore|bot=medic}}{{cite news |url=http://www.airspacemag.com/flight-today/The-Other-Gulf-War.html |title=The Other Gulf War |first=Mark |last=Huber |newspaper=Air & Space |date=January 2011 |access-date=11 April 2013}}

{{cite news |url=http://www.weeklystandard.com/blogs/bp-stopping-journalists-observing-oil-slick |archive-url=https://web.archive.org/web/20100716184418/http://www.weeklystandard.com/blogs/bp-stopping-journalists-observing-oil-slick |url-status=dead |archive-date=16 July 2010 |title=Is BP Stopping Journalists from Observing the Oil Slick? |first=Michael |last=Warren |newspaper=The Weekly Standard |date=11 June 2010 |access-date=11 April 2013}}

Restrictions were to prevent civilian air traffic from interfering with aircraft assisting the response effort. All flights in the operations' area were prohibited except flight authorized by air traffic control; routine flights supporting offshore oil operations; federal, state, local and military flight operations supporting spill response; and air ambulance and law enforcement operations. Exceptions for these restrictions were granted on a case-by-case basis dependent on safety issues, operational requirements, weather conditions, and traffic volume. No flights, except aircraft conducting aerial chemical dispersing operations, or for landing and takeoff, were allowed below {{cvt|1000|m}}. Notwithstanding restrictions, there were 800 to 1,000 flights per day during the operations.{{cite news |url=http://www.nola.com/news/gulf-oil-spill/index.ssf/2010/05/limits_on_access_to_oiled_wate.html |title=Limits on access to oiled waters, coast frustrates journalists |first=Laura |last=Maggi |newspaper=The Times-Picayune |date=29 May 2010 |access-date=11 April 2013}}

Local and federal authorities citing BP's authority denied access to members of the press attempting to document the spill from the air, from boats, and on the ground, blocking access to areas that were open to the public.CBS News [http://www.cbsnews.com/video/watch/?id=6496749n May 18, 2010 Broadcast]Mac McClelland for Mother Jones, 24 May 2010. [https://www.motherjones.com/environment/2010/05/oil-spill-bp-grand-isle-beach "It's BP's Oil': Running the Corporate Blockade at Louisiana's Crude-Covered Beaches]Matthew Philips, [http://www.thedailybeast.com/newsweek/2010/05/26/the-missing-oil-spill-photos.html "BP's Photo Blockade of the Gulf Oil Spill: Photographers Say BP and Government Officials Are Preventing Them from Documenting the Impact of the Deepwater Horizon Disaster"], Newsweek, 25 May 2010.Matthew Lysiak and Helen Kennedy, [http://www.nydailynews.com/news/national/oil-spill-disaster-survival-grand-isle-la-doubt-tourism-cash-trickling-halt-article-1.178303 "Dying, dead marine wildlife paint dark, morbid picture of Gulf Coast following oil spill"], Daily News (New York), 2 June 2010.Dan Zak for the Washington Post, 3 June 2010. [https://www.washingtonpost.com/wp-dyn/content/article/2010/06/03/AR2010060300848.html As oil spread, did BP battle to contain the media?]NPR. 4 June 2010 [http://www.onthemedia.org/2010/jun/04/media-encounter-access-problems-while-covering-the-oil-spill/transcript/ Transcript: Media Encounter Access Problems While Covering The Oil Spill] {{webarchive|url=https://web.archive.org/web/20130517074225/http://www.onthemedia.org/2010/jun/04/media-encounter-access-problems-while-covering-the-oil-spill/transcript/ |date=17 May 2013 }} In some cases photographers were granted access only with BP officials escorting them on BP-contracted boats and aircraft. In one example, the U.S. Coast Guard stopped Jean-Michel Cousteau's boat and allowed it to proceed only after the Coast Guard was assured that no journalists were on board. In another example, a CBS News crew was denied access to the oil-covered beaches of the spill area. The CBS crew was told by the authorities, "This is BP's rules, not ours," when trying to film the area.{{cite web |publisher=CBS Evening News |date=18 May 2010 |title=Coast Guard Under 'BP's Rules |url=http://www.cbsnews.com/video/watch/?id=6496749n}}PR Newser, 20 May 2010, Crisis Communications, [http://www.mediabistro.com/prnewser/cbs-denied-access-to-shoot-oil-spill-coast-guard-and-contractors-say-this-is-bps-rules-not-ours_b3711 CBS Denied Access to Shoot Oil Spill] {{Webarchive|url=https://web.archive.org/web/20141219192023/http://www.mediabistro.com/prnewser/cbs-denied-access-to-shoot-oil-spill-coast-guard-and-contractors-say-this-is-bps-rules-not-ours_b3711 |date=19 December 2014 }} Some members of Congress criticized the restrictions placed on access by journalists.

The FAA denied that BP employees or contractors made decisions on flights and access, saying those decisions were made by the FAA and Coast Guard. The FAA acknowledged that media access was limited to hired planes or helicopters, but was arranged through the Coast Guard. The Coast Guard and BP denied having a policy of restricting journalists; they noted that members of the media had been embedded with the authorities and allowed to cover response efforts since the beginning of the effort, with more than 400 embeds aboard boats and aircraft to date. They also said that they wanted to provide access to the information while maintaining safety.

On 15 April 2014, BP announced that cleanup along the coast was substantially complete, while the United States Coast Guard work continued using physical barriers such as floating booms, the cleanup workers' objective was to keep the oil from spreading any further. They used skimmer boats to remove a majority of the oil and they used sorbents to absorb any remnant of oil like a sponge. Although that method did not remove the oil completely, chemicals called dispersants were used to hasten the oil's degradation to prevent the oil from doing further damage to the marine habitats below the surface water. For the Deep Horizon oil spill, cleanup workers used {{cvt|1400000|usgal}} of various chemical dispersants to further breakdown the oil.{{Cite web |title=Gulf Oil Spill |url=http://ocean.si.edu/gulf-oil-spill |website=Smithsonian Ocean Portal |access-date=23 November 2015}}

The state of Louisiana received funding by BP to do regular testing of fish, shellfish, water, and sand. Initial testing regularly showed detectable levels of dioctyl sodium sulfosuccinate, a chemical used in the clean up. Testing over 2019 reported by GulfSource.org, for the pollutants tested have not produced results.{{Cite web|url=https://www.gulfsource.org/|archiveurl=http://arquivo.pt/wayback/20160517175405/http://www.gulfsource.org/|url-status=dead|title=gulfsource.org|date=10 May 2023|archivedate=17 May 2016}}

Due to the Deepwater Horizon spill, marine life was suffering. Thousands of animals were visibly covered in oil.{{Cite web|title=Gulf Oil Spill {{!}} Smithsonian Ocean|url=http://ocean.si.edu/conservation/pollution/gulf-oil-spill|access-date=18 October 2021|website=ocean.si.edu|date=30 April 2018 |language=en}} The U.S. Fish and Wildlife Service, working with the Smithsonian's National Zoological Park, rescued animals to help with the spill cleanup, although there were many animals found dead.

{{main|Environmental impact of the Deepwater Horizon oil spill}}

File:Turtle Rescue and Rehabilitation.jpg

The spill area hosts 8,332 species, including more than 1,270 fish, 604 polychaetes, 218 birds, 1,456 mollusks, 1,503 crustaceans, 4 sea turtles and 29 marine mammals. Between May and June 2010, the spill waters contained 40 times more polycyclic aromatic hydrocarbons (PAHs) than before the spill.{{cite web |url=http://oregonstate.edu/ua/ncs/archives/2010/sep/osu-researchers-find-heightened-levels-known-carcinogens-gulf |title=OSU researchers find heightened levels of known carcinogens in Gulf – News and Research Communications |publisher=Oregon State University |date=30 September 2010 |access-date=24 May 2013 |archive-date=17 November 2020 |archive-url=https://web.archive.org/web/20201117130556/https://today.oregonstate.edu/archives/2010/sep/osu-researchers-find-heightened-levels-known-carcinogens-gulf |url-status=dead }} PAHs are often linked to oil spills and include carcinogens and chemicals that pose various health risks to humans and marine life. The PAHs were most concentrated near the Louisiana Coast, but levels also jumped 2–3 fold in areas off Alabama, Mississippi and Florida. PAHs can harm marine species directly and microbes used to consume the oil can reduce marine oxygen levels. The oil contained approximately 40% methane by weight, compared to about 5% found in typical oil deposits. Methane can potentially suffocate marine life and create "dead zones" where oxygen is depleted.

A 2014 study of the effects of the oil spill on bluefin tuna funded by National Oceanic and Atmospheric Administration (NOAA), Stanford University, and the Monterey Bay Aquarium and published in the journal Science, found that the toxins from oil spills can cause irregular heartbeats leading to cardiac arrest. Calling the vicinity of the spill "one of the most productive ocean ecosystems in the world", the study found that even at very low concentrations "PAH cardiotoxicity was potentially a common form of injury among a broad range of species in the vicinity of the oil." Another peer-reviewed study, released in March 2014 and conducted by 17 scientists from the United States and Australia and published in the Proceedings of the National Academy of Sciences, found that tuna and amberjack that were exposed to oil from the spill developed deformities of the heart and other organs that would be expected to be fatal or at least life-shortening.

The scientists said that their findings would most likely apply to other large predator fish and "even to humans, whose developing hearts are in many ways similar." BP responded that the concentrations of oil in the study were a level rarely seen in the Gulf, but The New York Times reported that the BP statement was contradicted by the study.

File:Oiled Pelicans.jpg near Grand Isle, Louisiana]]

The oil dispersant Corexit, previously only used as a surface application, was released underwater in unprecedented amounts, with the intent of making it more easily biodegraded by naturally occurring microbes. Thus, oil that would normally rise to the surface of the water was emulsified into tiny droplets and remained suspended in the water and on the sea floor.{{cite news |url=http://www.torontosun.com/news/world/2010/06/05/14277081.html |title=Oil spill's environmental costs |newspaper=Toronto Sun}} The oil and dispersant mixture permeated the food chain through zooplankton. Signs of an oil-and-dispersant mix were found under the shells of tiny blue crab larvae. A study of insect populations in the coastal marshes affected by the spill also found a significant impact. Chemicals from the spill were found in migratory birds as far away as Minnesota. Pelican eggs contained "petroleum compounds and Corexit". Dispersant and PAHs from oil are believed to have caused "disturbing numbers" of mutated fish that scientists and commercial fishers saw in 2012, including 50% of shrimp found lacking eyes and eye sockets. Fish with oozing sores and lesions were first noted by fishermen in November 2010. Prior to the spill, approximately 0.1% of Gulf fish had lesions or sores. A report from the University of Florida said that many locations showed 20% of fish with lesions, while later estimates reached 50%. In October 2013, Al Jazeera reported that the gulf ecosystem was "in crisis", citing a decline in seafood catches, as well as deformities and lesions found in fish.{{cite web |url=http://www.aljazeera.com/indepth/features/2013/10/gulf-ecosystem-crisis-after-bp-spill-2013102065313544754.html |title=Gulf ecosystem in crisis after BP spill |first=Dahr |last=Jamail |publisher=Al Jazeera}} According to J. Christopher Haney, Harold Geiger, and Jeffrey Short, three researchers with extensive experience in environmental monitoring and post-spill mortality assessments, over one million coastal birds died as a direct result of the Deepwater Horizon spill. These numbers, coupled with the National Audubon Society scientists' observations of bird colonies and bird mortality well after the acute phase, have led scientists to conclude that more than one million birds ultimately succumbed to the lethal effects of the Gulf oil spill.

In July 2010, it was reported that the spill was "already having a 'devastating' effect on marine life in the Gulf". Damage to the ocean floor especially endangered the Louisiana pancake batfish whose range is entirely contained within the spill-affected area. In March 2012, a definitive link was found between the death of a Gulf coral community and the spill. According to NOAA, a cetacean Unusual Mortality Event (UME) has been recognized since before the spill began, NOAA is investigating possible contributing factors to the ongoing UME from the Deepwater Horizon spill, with the possibility of eventual criminal charges being filed if the spill is shown to be connected. Some estimates are that only 2% of the carcasses of killed mammals have been recovered.

File:Striped Dolphins.jpg) observed in emulsified oil on 29 April 2010]]

In the first birthing season for dolphins after the spill, dead baby dolphins washed up along Mississippi and Alabama shorelines at about 10 times the normal number. {{dead link|date=October 2016}} A peer-reviewed NOAA/BP study disclosed that nearly half the bottlenose dolphins tested in mid-2011 in Barataria Bay, a heavily oiled area, were in "guarded or worse" condition, "including 17 percent that were not expected to survive". BP officials deny that the disease conditions are related to the spill, saying that dolphin deaths actually began being reported before the BP oil spill.{{cite web |date=December 2013 |url=http://www.nola.com/environment/index.ssf/2013/12/half_of_bottlenose_dolphins_of.html |title=Half of bottlenose dolphins in Barataria Bay were seriously ill or dying in 2011, new study finds |publisher=NOLA}} By 2013, over 650 dolphins had been found stranded in the oil spill area, a four-fold increase over the historical average.{{cite web |url=http://www.nwf.org/News-and-Magazines/Media-Center/Reports/Archive/2013/04-02-13-Restoring-A-Degraded-Gulf-of-Mexico.aspx |title=Restoring A Degraded Gulf of Mexico – National Wildlife Federation |publisher=NWF}} The National Wildlife Federation (NWF) reports that sea turtles, mostly endangered Kemp's ridley sea turtles, have been stranding at a high rate. Before the spill there was an average of 100 strandings per year; since the spill the number has jumped to roughly 500.{{cite web |url=https://www.nwf.org/What-We-Do/Protect-Habitat/Gulf-Restoration/Oil-Spill/Effects-on-Wildlife.aspx |title=How You Can Help Wildlife Impacted by the BP Oil Spill – National Wildlife Federation |publisher=NWF}}

NWF senior scientist Doug Inkley notes that the marine death rates are unprecedented and occurring high in the food chain, strongly suggesting there is "something amiss with the Gulf ecosystem".{{cite news |url=http://www.huffingtonpost.com/2013/04/02/gulf-of-mexico-dolphin-deaths-bp_n_3001408.html |work=Huffington Post |first=James |last=Gerken |title=Is The Gulf Still Sick? |date=2 April 2013}} In December 2013, the journal Environmental Science & Technology published a study finding that of 32 dolphins briefly captured from 24-km stretch near southeastern Louisiana, half were seriously ill or dying. BP said the report was "inconclusive as to any causation associated with the spill".{{cite news |url=http://www.huffingtonpost.ca/2014/02/12/bp-oil-spill-dolphins_n_4774754.html |title=BP Oil Spill: Dolphins Plagued By Death, Disease Years After Rig Explosion |work=Huffington Post Canada |date=12 February 2014 |access-date=17 February 2014}}{{cite news |url=https://www.independent.co.uk/news/world/americas/dolphins-suffering-miscarriage-lung-disease-losing-teeth-after-bp-oil-spill-researchers-claim-9134045.html |title=Dolphins 'suffering miscarriage, lung disease, losing teeth after BP oil spill' researchers claim |work=The Independent (UK) |date=17 February 2014 |access-date=17 February 2014 |author=Gander, Kashmira |location=London}}

File:Bay Jimmy, Plaquemines Parish (9152010).jpg

In 2012, tar balls continued to wash up along the Gulf coast and in 2013, tar balls could still be found in on the Mississippi and Louisiana coasts, along with oil sheens in marshes and signs of severe erosion of coastal islands, brought about by the death of trees and marsh grass from exposure to the oil.{{cite news |last=Dermansky |first=Julie |title=Three Years After the BP Spill, Tar Balls and Oil Sheen Blight Gulf Coast |url=https://www.theatlantic.com/national/archive/2013/04/three-years-after-the-bp-spill-tar-balls-and-oil-sheen-blight-gulf-coast/275139/ |access-date=29 April 2013 |newspaper=The Atlantic |date=20 April 2013}} In 2013, former NASA physicist Bonny Schumaker noted a "dearth of marine life" in a radius {{cvt|30|to|50|mi}} around the well, after flying over the area numerous times since May 2010.{{cite web |url=http://science.nbcnews.com/_news/2013/01/31/16792048-mystery-oil-sheen-grows-near-site-of-bp-gulf-disaster-says-researcher |title=Mystery 'oil sheen' grows near site of BP Gulf disaster, says researcher |last=Science |work=NBC News}}[http://www.onwingsofcare.org/protection-a-preservation/gulf-of-mexico-oil-spill-2010.html Gulf of Mexico, since the BP Oil Spill of 2010 April] {{webarchive|url=https://web.archive.org/web/20140308045440/http://www.onwingsofcare.org/protection-a-preservation/gulf-of-mexico-oil-spill-2010.html |date=8 March 2014 }}

In 2013, researchers found that oil on the bottom of the seafloor did not seem to be degrading,{{cite web |title=AP: BP oil not degrading on Gulf floor, study says |work=Yahoo News |url=https://news.yahoo.com/ap-bp-oil-not-degrading-gulf-floor-study-171803770.html |access-date=1 April 2014}} and observed a phenomenon called a "dirty blizzard": oil in the water column began clumping around suspended sediments, and falling to the ocean floor in an "underwater rain of oily particles". The result could have long-term effects because oil could remain in the food chain for generations.

A 2014 bluefin tuna study in Science found that oil already broken down by wave action and chemical dispersants was more toxic than fresh oil.{{cite news |url=http://www.theaustralian.com.au/news/health-science/tuna-study-reveals-how-pollution-causes-heart-problems/story-e6frg8y6-1226826877064 |title=Tuna study reveals how pollution causes heart problems |work=The Australian |date=14 February 2014 |access-date=18 February 2014}} A 2015 study of the relative toxicity of oil and dispersants to coral also found that the dispersants were more toxic than the oil.{{cite web |url=http://www.newswise.com/articles/view/632428/?sc=swtr&xy=5028049 |title=Dispersant Used to Clean Deepwater Horizon Spill More Toxic to Corals Than the Oil |publisher=NewsWise}}

A 2015 study by the National Oceanic and Atmospheric Administration, published in PLOS ONE, links the sharp increase in dolphin deaths to the Deepwater Horizon oil spill.Ryan Grenoble (20 May 2015). [http://www.huffingtonpost.com/2015/05/20/deepwater-horizon-dolphin-deaths_n_7346250.html Spike In Dolphin Deaths Directly Tied To Deepwater Horizon Oil Spill, Researchers Say]. The Huffington Post. Retrieved 20 May 2015.Nicholas St. Fleur (20 May 2015). [https://www.nytimes.com/2015/05/21/science/dolphin-deaths-in-gulf-of-mexico-linked-to-deepwater-horizon-oil-spill.html Study Links Dolphin Deaths to Deepwater Horizon Oil Spill]. The New York Times. Retrieved 21 May 2015.

On 12 April 2016, a research team reported that 88 percent of about 360 baby or stillborn dolphins within the spill area "had abnormal or under-developed lungs", compared to 15 percent in other areas. The study was published in the April 2016 Diseases of Aquatic Organisms.{{cite news |url=http://www.myrtlebeachonline.com/news/nation-world/national/article71524207.html |title=Hundreds of baby dolphin deaths tied to BP's Gulf oil spill |last=Staletovich |first=Jenny |work=The Sun News |publisher=The Miami Herald |date=13 April 2016 |access-date=13 April 2016}}

{{main|Health consequences of the Deepwater Horizon oil spill}}

By June 2010, 143 spill-exposure cases had been reported to the Louisiana Department of Health and Hospitals; 108 of those involved workers in the clean-up efforts, while 35 were reported by residents. Chemicals from the oil and dispersant are believed to be the cause; it is believed that the addition of dispersants made the oil more toxic.{{cite news |url=http://www.huffingtonpost.com/2013/04/23/corexit-oil-spill-gulf_n_3134963.html |work=Huffington Post |first=Jessica |last=Leader |title=Is This Oil Spill Solution Worse Than The Problem? |date=23 April 2013}}

File:Oil waste clean up at Elmer's Island 2010-05-21.jpg

The United States Department of Health and Human Services set up the GuLF Study in June 2010 in response to these reports. The study is run by the National Institute of Environmental Health Sciences, and will last at least five years.{{cite journal |title=OCCUPATIONAL HEALTH. Study to Examine Health Effects in 'Deepwater Horizon' Oil Spill Cleanup workers |last=Schmidt |first=Charles W. |journal=Environmental Health Perspectives |issn=0091-6765 |volume=119 |issue=5 |year=2011 |pages=A204 |jstor=41203284 |doi=10.1289/ehp.119-a204 |pmid=21531657 |pmc=3094437}}{{cite news |first=Dahr |last=Jamail |url=http://www.aljazeera.com/indepth/features/2010/10/20101027132136220370.html |title=BP dispersants 'causing sickness' |publisher=Al Jazeera |date=29 October 2010 |access-date=21 May 2013}}

File:HSE workers clean up Port Fourchon beach 2010-05-23.JPG

Mike Robicheux, a Louisiana physician, described the situation as "the biggest public health crisis from a chemical poisoning in the history of this country." In July, after testing the blood of BP cleanup workers and residents in Louisiana, Mississippi, Alabama, and Florida for volatile organic compounds, environmental scientist Wilma Subra said she was "finding amounts 5 to 10 times in excess of the 95th percentile"; she said that "the presence of these chemicals in the blood indicates exposure." Riki Ott, a marine toxicologist with experience of the Exxon Valdez oil spill, advised families to evacuate the Gulf.Rose Aguilar, "[http://archive.truthout.org/toxic-dispersants-causing-widespread-illness61604 Experts: Health Hazards in Gulf Warrant Evacuations] {{Webarchive|url=https://web.archive.org/web/20121115061021/http://archive.truthout.org/toxic-dispersants-causing-widespread-illness61604 |date=15 November 2012 }}", Truthout, 22 July 2010. She said that workers from the Valdez spill had suffered long-term health consequences."Health of Exxon Valdez cleanup workers was never studied", Herald-Review (McClatchy), 4 July 2010.

Following the 26 May 2010 hospitalization of seven fishermen that were working in the cleanup crew, BP requested that the National Institute for Occupational Safety and Health perform a Health Hazard Evaluation. This was to cover all offshore cleanup activities; BP later requested a second NIOSH investigation of onshore cleanup operations. Tests for chemical exposure in the seven fishermen were negative; NIOSH concluded that the hospitalizations were most likely a result of heat, fatigue, and terpenes that were being used to clean the decks. Review of 10 later hospitalizations found that heat exposure and dehydration were consistent findings but could not establish chemical exposure. NIOSH personnel performed air monitoring around cleanup workers at sea, on land, and during the application of Corexit. Air concentrations of volatile organic compounds and PAHs never exceeded permissible exposure levels. A limitation of their methodology was that some VOCs may have already evaporated from the oil before they began their investigation. In their report, they suggest the possibility that respiratory symptoms might have been caused by high levels of ozone or reactive aldehydes in the air, possibly produced from photochemical reactions in the oil. NIOSH did note that many of the personnel involved were not donning personal protective equipment (gloves and impermeable coveralls) as they had been instructed to and emphasized that this was important protection against transdermal absorption of chemicals from the oil. Heat stress was found to be the most pressing safety concern.[https://www.cdc.gov/niosh/hhe/reports/pdfs/2010-0115-0129-3138.pdf Health Hazard Evaluation of Deepwater Horizon Response Workers] National Institute for Occupation Safety and Health, August 2011.

Workers reported that they were not allowed to use respirators, and that their jobs were threatened if they did.{{cite web |last=Vanhemert |first=Kyle |title=BP Reportedly Preventing Clean-Up Workers From Wearing Respirators |url=https://gizmodo.com/5582758/bp-reportedly-preventing-clean-up-workers-from-wearing-respirators |work=Gizmodo |date=8 July 2010 |access-date=5 March 2014}}{{cite news |last=Cohen |first=Elizabeth |title=Fisherman files restraining order against BP |url=http://edition.cnn.com/2010/HEALTH/05/31/oil.spill.order/ |work=CNN |access-date=5 March 2014 |date=31 May 2010}}{{cite news |last=Schor |first=Elana |title=Petition Urges Obama Admin to Protect Gulf Spill Cleanup Workers |url=https://www.nytimes.com/gwire/2010/07/09/09greenwire-petition-urges-obama-admin-to-protect-gulf-spi-60345.html |work=NYT |access-date=5 March 2014 |date=9 July 2010}} OSHA said "cleanup workers are receiving "minimal" exposure to airborne toxins...OSHA will require that BP provide certain protective clothing, but not respirators."{{cite news |last=Trotman |first=Melanie |title=OSHA Says Cleanup Workers Don't Need Respirators |url=https://www.wsj.com/news/articles/SB10001424052748704764404575286180491707288 |work=The Wall Street Journal |access-date=5 March 2014}} ProPublica reported that workers were being photographed while working with no protective clothing.{{cite web |last=Chavkin |first=Sasha |title=Coast Guard Photos Show Spill Workers Without Protective Gear |url=https://www.propublica.org/article/coast-guard-photos-show-spill-workers-without-protective-gear |work=ProPublica |access-date=5 March 2014 |date=13 July 2010}} An independent investigation for Newsweek showed that BP did not hand out the legally required safety manual for use with Corexit, and were not provided with safety training or protective gear.{{cite web |last=Hertgaard |first=Mark |title=What BP Doesn't Want You to Know About the 2010 Gulf Spill |url=http://www.newsweek.com/what-bp-doesnt-want-you-know-about-2010-gulf-spill-63015 |work=Newsweek |access-date=5 March 2014 |date=22 April 2013}}

A 2012 survey of the health effects of the spill on cleanup workers reported "eye, nose and throat irritation; respiratory problems; blood in urine, vomit and rectal bleeding; seizures; nausea and violent vomiting episodes that last for hours; skin irritation, burning and lesions; short-term memory loss and confusion; liver and kidney damage; central nervous system effects and nervous system damage; hypertension; and miscarriages". Dr. James Diaz, writing for the American Journal of Disaster Medicine, said these ailments appearing in the Gulf reflected those reported after previous oil spills, like the Exxon Valdez. Diaz warned that "chronic adverse health effects, including cancers, liver and kidney disease, mental health disorders, birth defects and developmental disorders should be anticipated among sensitive populations and those most heavily exposed". Diaz also believes neurological disorders should be expected.

Two years after the spill, a study initiated by the National Institute for Occupational Safety and Health found biomarkers matching the oil from the spill in the bodies of cleanup workers. {{citation needed|date=July 2013}} Other studies have reported a variety of mental health issues, skin problems, breathing issues, coughing, and headaches.{{cite web |url=http://www.loe.org/shows/segments.html?programID=13-P13-00004&segmentID=6 |title=Living on Earth: Research Update on the Impact of BP Oil Spill |first=Living on Earth / World Media Foundation / Public Radio |last=International |publisher=LCE}} In 2013, during the three-day "Gulf of Mexico Oil Spill & Ecosystem Science Conference",{{cite web |title=Gulf of Mexico Oil Spill & Ecosystem Science Conference (21–23 January 2013, New Orleans, LA) |url=http://www.imber.info/Meetings/IMBER-Relevant-Meetings/meetings-2013/January-2013/Gulf-of-Mexico-Oil-Spill-Ecosystem-Science-Conference-21-23-January-2013-New-Orleans-LA |access-date=22 February 2017 |archive-url=https://web.archive.org/web/20170223044523/http://www.imber.info/Meetings/IMBER-Relevant-Meetings/meetings-2013/January-2013/Gulf-of-Mexico-Oil-Spill-Ecosystem-Science-Conference-21-23-January-2013-New-Orleans-LA |archive-date=23 February 2017 |url-status=dead }} findings discussed included a '"significant percentage" of Gulf residents reporting mental health problems like anxiety, depression and PTSD. These studies also showed that the bodies of former spill cleanup workers carry biomarkers of "many chemicals contained in the oil".Conferences on this theme occurred at least in 2016 and 2017. {{cite web |url=http://www.cvent.com/events/2016-oil-spill-and-ecosystem-science-conference/event-summary-52ad0b225ba54cf0960090070e6f8073.aspx |title=2016 Gulf of Mexico Oil Spill and Ecosystem Science Conference |publisher=CVENT.com}} {{cite web |url=http://www.cvent.com/events/2017-oil-spill-and-ecosystem-science-conference/event-summary-b167156e2ddd40e5a4d371b459058545.aspx?lang=en |title=2017 Oil Spill and Ecosystem Science Conference |publisher=CVENT.com}}

A study that investigated the health effects among children in Louisiana and Florida living less than 10 miles from the coast found that more than a third of the parents reported physical or mental health symptoms among their children. The parents reported "unexplained symptoms among their children, including bleeding ears, nose bleeds, and the early start of menstruation among girls," according to David Abramson, director of Columbia University's National Center for Disaster Preparedness.

A cohort study of almost 2,200 Louisiana women found "high physical/environmental exposure was significantly associated with all 13 of the physical health symptoms surveyed, with the strongest associations for burning in nose, throat or lungs; sore throat; dizziness and wheezing. Women who suffered a high degree of economic disruption as a result of spill were significantly more likely to report wheezing; headaches; watery, burning, itchy eyes and stuffy, itchy, runny nose.Lauren C. Peres, Edward Trapido, Ariane L. Rung, Daniel J. Harrington, Evrim Oral, Zhide Fang, Elizabeth Fontham, and Edward S. Peters. [http://ehp.niehs.nih.gov/15-10348/The Deepwater Horizon Oil Spill and Physical Health among Adult Women in Southern Louisiana: The Women and Their Children's Health (WaTCH) Study.]{{dead link|date=May 2017 |bot=InternetArchiveBot |fix-attempted=yes }} Environ Health Perspect;DOI:10.1289/ehp.1510348. advance publication, retrieved 5 February 2016

{{Main|Economic effects of the Deepwater Horizon oil spill}}

File:Deepwater Horizon oil spill fishing closure map 2010-06-21.png

File:Orange Beach Do Not Swim sign walkway.JPG advising against swimming due to the oil spill]]

The spill had a strong economic impact to BP{{cite news |url=https://money.cnn.com/2010/06/10/news/companies/BP_stock/ |work=CNNMoney |first=Julianne |last=Pepitone |title=BP shares recover after reassurance |date=10 June 2010}} and also the Gulf Coast's economy sectors such as offshore drilling, fishing and tourism. Estimates of lost tourism dollars were projected to cost the Gulf coastal economy up to $22.7 billion through 2013. In addition, Louisiana reported that lost visitor spending through the end of 2010 totaled $32 million, and losses through 2013 were expected to total $153 million in this state alone.{{Cite web |title=The Impact of the BP Oil Spill on Visitor Spending in Louisiana: Revised estimates based on data through 2010 Q4, Prepared for the Louisiana Office of Tourism |url=http://docplayer.net/9686378-The-impact-of-the-bp-oil-spill-on-visitor-spending-in-louisiana.html |publisher=Tourism Economics |volume=June 2011 |access-date=4 November 2016}}{{Cite web |title=Summary of Information concerning the Ecological and Economic Impacts of the BP Deepwater Horizon Oil Spill Disaster |url=https://www.nrdc.org/file/4218/download?token=M2Bxrq5m |publisher=Natural Resources Defense Council |volume=June 2015 |access-date=4 November 2016 |format=PDF |archive-date=1 January 2018 |archive-url=https://web.archive.org/web/20180101214727/https://www.nrdc.org/file/4218/download?token=M2Bxrq5m |url-status=dead }} The Gulf of Mexico commercial fishing industry was estimated to have lost $247 million as a result of postspill fisheries closures. One study projects that the overall impact of lost or degraded commercial, recreational, and mariculture fisheries in the Gulf could be $8.7 billion by 2020, with a potential loss of 22,000 jobs over the same time frame.{{Cite journal |author=Sumaila, U.R.|s2cid=53585645 |display-authors=et al |title=Impact of the Deepwater Horizon well blowout on the economics of U.S. Gulf fisheries |journal=Canadian Journal of Fisheries and Aquatic Sciences |volume=69 |issue=3 |pages=499–510 |date=March 2012 |doi=10.1139/f2011-171|doi-access=free |bibcode=2012CJFAS..69..499S }} BP's expenditures on the spill included the cost of the spill response, containment, relief well drilling, grants to the Gulf states, claims paid, and federal costs, including fines and penalties. Due to the loss of the market value, BP had dropped from the second to the fourth largest of the four major oil companies by 2013.{{cite news |url=https://www.reuters.com/article/us-bp-results-urgent-idUSBRE91409C20130205?irpc=932 |work=Reuters |title=Smaller BP's profits down as oil spill trial looms |date=5 February 2013}} During the crisis, BP gas stations in the United States reported a sales drop of between 10 and 40% due to backlash against the company.

Local officials in Louisiana expressed concern that the offshore drilling moratorium imposed in response to the spill would further harm the economies of coastal communities as the oil industry directly or indirectly employs about 318,000 Louisiana residents (17% of all jobs in the state). NOAA had closed {{cvt|86985|sqmi}}, or approximately 36% of Federal waters in the Gulf of Mexico, for commercial fishing causing $2.5 billion cost for the fishing industry. The U.S. Travel Association estimated that the economic impact of the oil spill on tourism across the Gulf Coast over a three-year period could exceed approximately $23 billion, in a region that supports over 400,000 travel industry jobs generating $34 billion in revenue annually.

{{Main|United States offshore drilling debate|2010 United States deepwater drilling moratorium}}

{{See also|Hornbeck Offshore Services LLC v. Salazar}}

File:US Crude Oil Production and Imports.svg

On 30 April 2010, President Barack Obama ordered the federal government to hold the issuing of new offshore drilling leases and authorized the investigation of 29 oil rigs in the Gulf in an effort to determine the cause of the disaster. Later a six-month offshore drilling (below {{cvt|500|ft}} of water) moratorium was enforced by the United States Department of the Interior. The moratorium suspended work on 33 rigs, and a group of affected companies formed the Back to Work Coalition.{{cite web |last=Durio |first=Katie |title=Back to Work Coalition Established to Address Federal Permitting Issues |url=http://www.katc.com/news/back-to-work-coalition-established-to-address-federal-permitting-issues/#_ |publisher=KATC.com |url-status=dead |archive-url=https://web.archive.org/web/20110929001142/http://www.katc.com/news/back-to-work-coalition-established-to-address-federal-permitting-issues/ |archive-date=29 September 2011 }} On 22 June, a United States federal judge on the United States District Court for the Eastern District of Louisiana Martin Leach-Cross Feldman when ruling in the case Hornbeck Offshore Services LLC v. Salazar, lifted the moratorium finding it too broad, arbitrary and not adequately justified. The ban was lifted in October 2010.{{Citation needed|date=August 2021}}

Prior to the oil spill, on 31 March 2010, Obama ended a ban on oil and gas drilling along the majority of the East Coast of the United States and along the coast of northern Alaska in an effort to win support for an energy and climate bill and to reduce foreign imports of oil and gas.{{Cite news|last=Neuman|first=Scott|date=31 March 2010|title=Obama Ends Ban On East Coast Offshore Drilling|language=en|work=NPR|url=https://www.npr.org/templates/story/story.php?storyId=125378223|access-date=30 October 2021}}

On 28 April 2010, the National Energy Board of Canada, which regulates offshore drilling in the Canadian Arctic and along the British Columbia Coast, issued a letter to oil companies asking them to explain their argument against safety rules which require same-season relief wells. On 3 May California Governor Arnold Schwarzenegger withdrew his support for a proposed plan to allow expanded offshore drilling projects in California. On 8 July, Florida Governor Charlie Crist called for a special session of the state legislature to draft an amendment to the state constitution banning offshore drilling in state waters, which the legislature rejected on 20 July.

In October 2011, the United States Department of the Interior's Minerals Management Service was dissolved after it was determined it had exercised poor oversight over the drilling industry. Three new agencies replaced it, separating the regulation, leasing, and revenue collection responsibilities respectively, among the Bureau of Safety and Environmental Enforcement, the Bureau of Ocean Energy Management, and Office of Natural Resources Revenue.

In March 2014, BP was again allowed to bid for oil and gas leases.{{cite news |title=BP shifts its position on Gulf payouts |last1=Robertson |first1=Campbell |last2=Schwartz |first2=John |work=The Charlotte Observer |agency=The New York Times |date=27 April 2014 |page=4A}}

{{Main|Reactions to the Deepwater Horizon oil spill}}

File:NOLA BP Oil Flood Protest Take Tar From Feathers.JPG

On 30 April, President Obama dispatched the Secretaries of the Department of Interior and Homeland Security, as well as the EPA Administrator and NOAA to the Gulf Coast to assess the disaster. In his 15 June speech, Obama said, "This oil spill is the worst environmental disaster America has ever faced... Make no mistake: we will fight this spill with everything we've got for as long as it takes. We will make BP pay for the damage their company has caused. And we will do whatever's necessary to help the Gulf Coast and its people recover from this tragedy." Interior Secretary Ken Salazar stated, "Our job basically is to keep the boot on the neck of British Petroleum." Some observers suggested that the Obama administration was being overly aggressive in its criticisms, which some BP investors saw as an attempt to deflect criticism of his own handling of the crisis. Rand Paul accused President Obama of being anti-business and "un-American".

Public opinion polls in the U.S. were generally critical of the way President Obama and the federal government handled the disaster and they were extremely critical of BPs response. Across the US, thousands participated in dozens of protests at BP gas stations and other locations, reducing sales at some stations by 10% to 40%.

The petroleum industry claimed that disasters are infrequent and that this spill was an isolated incident and rejected claims of a loss of industry credibility. The American Petroleum Institute (API) stated that the offshore drilling industry is important to job creation and economic growth. CEOs from the top five oil companies all agreed to work harder at improving safety. API announced the creation of an offshore safety institute, separate from API's lobbying operation.

File:NOLA BP Oil Flood Protest Union Jack stand.JPG, presumably associating BP with the United Kingdom]]

The Organization for International Investment, a Washington D.C.-based advocate for overseas investment in the United States, warned that the heated rhetoric was potentially damaging the reputation of British companies with operations in the United States and could spark a wave of U.S. protectionism that would restrict British firms from government contracts, political donations and lobbying.

In July 2010, President Obama issued an executive order, specifically citing the Deepwater Horizon oil spill, that adopted recommendations from the Interagency Ocean Policy Task Force and established the National Ocean Council.{{cite web |url=https://obamawhitehouse.archives.gov/the-press-office/executive-order-stewardship-ocean-our-coasts-and-great-lakes |title=Executive Order 13547 --Stewardship of the Ocean, Our Coasts, and the Great Lakes |date=19 July 2010 |publisher=The White House Office of the Press Secretary| access-date=18 July 2018}} The council called together a number of federal committees and departments engaged in ocean issues to work with a newly established committee for conservation and resource management.{{cite news |url=https://bostonglobe.com/metro/2018/06/21/trump-rescinds-obama-ocean-policy/8CLXSSGh9ZDu16k9MWkE5J/story.html |title=Trump rescinds Obama-era ocean policy |author=David Abel |date=22 June 2018 |newspaper=Boston Globe |access-date=18 July 2018 |archive-url=https://web.archive.org/web/20180719054241/https://www.bostonglobe.com/metro/2018/06/21/trump-rescinds-obama-ocean-policy/8CLXSSGh9ZDu16k9MWkE5J/story.html |archive-date=19 July 2018 |url-status=dead }} In June 2018, the executive order establishing the National Ocean Council was revoked by then-U.S. president Donald Trump in an effort to roll back bureaucracy and benefit "ocean industries [that] employ millions of Americans".{{cite news |url=https://theguardian.com/environment/2018/jun/28/bp-deepwater-horizon-oil-spill-report |title=Deepwater Horizon disaster altered building blocks of ocean life |author=Oliver Milman |date=28 June 2018 |newspaper=The Guardian| access-date=18 July 2018}}

In the UK, there was anger at the American press and news outlets for the misuse of the term "British Petroleum" for the company – a name which has not been used since British Petroleum merged with the American company Amoco in 1998 to form BP Amoco. It was said that the U.S. was "dumping" the blame onto the British people and there were calls for British Prime Minister David Cameron to protect British interests in the United States. British pension fund managers (who have large holdings of BP shares and rely upon its dividends) accepted that while BP had to pay compensation for the spill and the environmental damage, they argued that the cost to the company's market value from President Obama's criticism was far outweighing the direct clean-up costs.

Initially, BP downplayed the incident; its CEO Tony Hayward called the amount of oil and dispersant "relatively tiny" in comparison with the "very big ocean". Later, he drew an outpouring of criticism when he said that the spill was a disruption to Gulf Coast residents and himself adding, "You know, I'd like my life back." BP's chief operating officer Doug Suttles contradicted the underwater plume discussion noting, "It may be down to how you define what a plume is here… The oil that has been found is in very minute quantities." In June, BP launched a PR campaign and successfully bid for several search terms related to the spill on Google and other search engines so that the first sponsored search result linked directly to the company's website. On 26 July 2010, it was announced that CEO Tony Hayward was to resign and would be replaced by Bob Dudley, who is an American citizen and previously worked for Amoco.

Hayward's involvement in Deepwater Horizon has left him a highly controversial public figure. In May 2013, he was honored as a "distinguished leader" by the University of Birmingham, but his award ceremony was stopped on multiple occasions by jeers and walk-outs and the focus of a protest from People & Planet members.{{cite web |last=Wragg |first=Tom |url=http://brightgreenscotland.org/index.php/2013/03/why-we-disrupted-tony-haywood-at-the-university-of-birmingham/ |title=Why we disrupted Tony Hayward's award at the University of Birmingham |publisher=Bright Green |date=21 March 2013 |access-date=21 March 2013 |url-status=dead |archive-url=https://web.archive.org/web/20130329001725/http://brightgreenscotland.org/index.php/2013/03/why-we-disrupted-tony-haywood-at-the-university-of-birmingham/ |archive-date=29 March 2013 }}

In July 2013, Hayward was awarded an honorary degree from Robert Gordon University. This was described as a "sick joke" and "a very serious error of judgement" by Friends of the Earth Scotland.{{cite press release |author= |title=Honorary degree for ex-BP Gulf of Mexico boss is a sick joke |url=https://foe.scot/press-release/honorary-degree-for-ex-bp-gulf-of-mexico-boss-is-a-sick-joke/ |location=Scotland |publisher=Friends of the Earth Scotland |date=12 July 2013 |access-date=21 July 2022}} The student body president expressed that students would be "very disappointed".{{cite news |last=Cheyne |first=James |title=University defends degree for Deepwater Horizon boss Tony Hayward |url=http://news.stv.tv/scotland/232676-robert-gordon-university-gives-degree-to-former-bp-boss-tony-hayward/ |publisher=STV |date=12 July 2013 |access-date=15 August 2013 |archive-date=4 March 2016 |archive-url=https://web.archive.org/web/20160304035020/http://news.stv.tv/scotland/232676-robert-gordon-university-gives-degree-to-former-bp-boss-tony-hayward/ |url-status=dead }}

The U.S. government rejected offers of cleanup help from Canada, Croatia, France, Germany, Ireland, Mexico, the Netherlands, Norway, Romania, South Korea, Spain, Sweden, the United Kingdom, and the United Nations. The U.S. State Department listed 70 assistance offers from 23 countries, all being initially declined, but later, 8 had been accepted. The USCG actively requested skimming boats and equipment from several countries.

{{Main|Deepwater Horizon investigation}}

In the United States the Deepwater Horizon investigation included several investigations and commissions, including reports by the USCG National Incident Commander, Admiral Thad Allen, the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling, Bureau of Ocean Energy Management, Regulation and Enforcement (BOEMRE), National Academy of Engineering, National Research Council, Government Accountability Office, National Oil Spill Commission, and Chemical Safety and Hazard Investigation Board. The Republic of the Marshall Islands Maritime Administrator conducted a separate investigation on the marine casualty. BP conducted its internal investigation.

An investigation of the possible causes of the explosion was launched on 22 April 2010 by the USCG and the Minerals Management Service. On 11 May the United States administration requested the National Academy of Engineering conduct an independent technical investigation. The National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling was established on 22 May to "consider the root causes of the disaster and offer options on safety and environmental precautions." The investigation by United States Attorney General Eric Holder was announced on 1 June 2010. Also the United States House Committee on Energy and Commerce conducted a number of hearings, including hearings of Tony Hayward and heads of Anadarko and Mitsui's exploration unit. According to the US Congressional investigation, the rig's blowout preventer, built by Cameron International Corporation, had a hydraulic leak and a failed battery, and therefore failed.

On 8 September 2010, BP released a 193-page report on its web site. The report places some of the blame for the accident on BP but also on Halliburton and Transocean.{{cite news |url=http://www.oilspillnews.net/bp-oil-spill-news/all-eyes-on-bp-report-on-gulf-oil-spill-disaster-%C2%AB-artesia-news/ |title=All eyes on BP report on Gulf |last1=Weber |first1=Harry R. |last2=Kunzelman |first2=Michael |last3=Cappiello |first3=Dina |work=Oil Spill News/Artesia News |agency=Associated Press |date=8 September 2010 |access-date=20 May 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110723113948/http://www.oilspillnews.net/bp-oil-spill-news/all-eyes-on-bp-report-on-gulf-oil-spill-disaster-%C2%AB-artesia-news/ |archive-date=23 July 2011 }} The report found that on 20 April 2010, managers misread pressure data and gave their approval for rig workers to replace drilling fluid in the well with seawater, which was not heavy enough to prevent gas that had been leaking into the well from firing up the pipe to the rig, causing the explosion. The conclusion was that BP was partly to blame, as was Transocean, which owned the rig. Responding to the report, Transocean and Halliburton placed all blame on BP.Mark Clayton for the Christian Science Monitor. 8 September 2010 [http://www.csmonitor.com/USA/2010/0908/Transocean-Halliburton-blast-BP-report-on-cause-of-blowout-oil-spill Transocean, Halliburton blast BP report on cause of blowout, oil spill]

On 9 November 2010, a report by the Oil Spill Commission said that there had been "a rush to completion" on the well and criticised poor management decisions. "There was not a culture of safety on that rig," the co-chair said.{{cite news |url=https://www.bbc.co.uk/news/world-us-canada-11720907 |title=Gulf oil spill: President's panel says firms complacent |publisher=BBC |date=9 November 2010 |access-date=12 November 2010}}

The National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling released a final report on 5 January 2011. The panel found that BP, Halliburton, and Transocean had attempted to work more cheaply and thus helped to trigger the explosion and ensuing leakage. The report stated that "whether purposeful or not, many of the decisions that BP, Halliburton, and Transocean made that increased the risk of the Macondo blowout clearly saved those companies significant time (and money)." BP released a statement in response to this, saying, that "even prior to the conclusion of the commission's investigation, BP instituted significant changes designed to further strengthen safety and risk management." Transocean, however, blamed BP for making the decisions before the actual explosion occurred and government officials for permitting those decisions. Halliburton stated that it was acting only upon the orders of BP when it injected the cement into the wall of the well. It criticized BP for its failure to run a cement bond log test. In the report, BP was accused of nine faults. One was that it had not used a diagnostic tool to test the strength of the cement. Another was ignoring a pressure test that had failed. Still another was for not plugging the pipe with cement. The study did not, however, place the blame on any one of these events. Rather, it concluded that "notwithstanding these inherent risks, the accident of April 20 was avoidable" and that "it resulted from clear mistakes made in the first instance by BP, Halliburton and Transocean, and by government officials who, relying too much on industry's assertions of the safety of their operations, failed to create and apply a program of regulatory oversight that would have properly minimized the risk of deepwater drilling." The panel also noted that the government regulators did not have sufficient knowledge or authority to notice these cost-cutting decisions.

On 23 March 2011, BOEMRE (former MMS) and the USCG published a forensic examination report on the blowout preventer, prepared by {{lang|no|Det Norske Veritas}}. The report concluded that the primary cause of failure was that the blind shear rams failed to fully close and seal due to a portion of drill pipe buckling between the shearing blocks.

The US government report issued in September 2011 stated that BP is ultimately responsible for the spill, and that Halliburton and Transocean share some of the blame. The report states that the main cause was the defective cement job, and Halliburton, BP and Transocean were, in different ways, responsible for the accident. The report stated that, although the events leading to the sinking of Deepwater Horizon were set into motion by the failure to prevent a well blowout, the investigation revealed numerous systems deficiencies, and acts and omissions by Transocean and its Deepwater Horizon crew, that had an adverse impact on the ability to prevent or limit the magnitude of the disaster. The report also states that a central cause of the blowout was failure of a cement barrier allowing hydrocarbons to flow up the wellbore, through the riser and onto the rig, resulting in the blowout. The loss of life and the subsequent pollution of the Gulf of Mexico were the result of poor risk management, last‐minute changes to plans, failure to observe and respond to critical indicators, inadequate well control response, and insufficient emergency bridge response training by companies and individuals responsible for drilling at the Macondo well and for the operation of the drilling platform.

File:Administration Responds to BP Oil Spill (4584731287).jpg

{{main|Gulf Coast Claims Facility}}

{{see also|Kenneth Feinberg}}

On 16 June 2010, after BP executives met with President Obama, BP announced and established the Gulf Coast Claims Facility (GCCF), a $20 billion fund to settle claims arising from the Deepwater Horizon spill. This fund was set aside for natural resource damages, state and local response costs, and individual compensation, but could not be used for fines or penalties. Prior to establishing the GCCF, emergency compensation was paid by BP from an initial facility.

The GCCF was administrated by attorney Kenneth Feinberg. The facility began accepting claims on 23 August 2010. On 8 March 2012, after BP and a team of plaintiffs' attorneys agreed to a class-action settlement, a court-supervised administrator Patrick Juneau took over administration. Until this more than one million claims of 220,000 individual and business claimants were processed and more than $6.2 billion was paid out from the fund. 97% of payments were made to claimants in the Gulf States. In June 2012, the settlement of claims through the GCCF was replaced by the court-supervised settlement program. During this transition period additional $404 million in claims were paid.

The GCCF and its administrator Feinberg had been criticized about the amount and speed of payments as well as a lack of transparency. An independent audit of the GCCF, announced by Attorney General Eric Holder, was approved by Senate on 21 October 2011. An auditor BDO Consulting found that 7,300 claimants were wrongly denied or underpaid. As a result, about $64 million of additional payments was made. The Mississippi Center for Justice provided pro bono assistance to 10,000 people to help them "navigate the complex claims process." In a New York Times opinion piece, Stephen Teague, staff attorney at the Mississippi Center for Justice, argued that BP had become "increasingly brazen" in "stonewalling payments." "But tens of thousands of gulf residents still haven't been fully compensated for their losses, and many are struggling to make ends meet. Many low-wage workers in the fishing and service industries, for example, have been seeking compensation for lost wages and jobs for three years."{{cite news |title=Shirking Responsibility in the Gulf |url=https://www.nytimes.com/2013/07/31/opinion/shirking-responsibility-in-the-gulf.html |author=Stephen Teague |date=31 July 2013 |location=Biloxi, Miss |newspaper=The New York Times}}

In July 2013, BP made a motion in court to freeze payments on tens of thousands of claims, arguing inter alia that a staff attorney from the Deepwater Horizon Court-Supervised Settlement Program, the program responsible for evaluating compensation claims, had improperly profited from claims filed by a New Orleans law firm. The attorney is said to have received portions of settlement claims for clients he referred to the firm. The federal judge assigned to the case, Judge Barbier, refused to halt the settlement program, saying he had not seen evidence of widespread fraud, adding that he was "offended by what he saw as attempts to smear the lawyer administering the claims."{{cite news |url=http://www.huffingtonpost.com/2013/07/19/bp-oil-spill-payments_n_3623940.html |work=Huffington Post |first=Jessica |last=Leader |title=Judge Rules Against BP Over Settlement Payout Request |date=19 July 2013}}

{{Main|Deepwater Horizon litigation}}

{{See also|Hornbeck Offshore Services LLC v. Salazar}}

By 26 May 2010, over 130 lawsuits relating to the spill had been filed against one or more of BP, Transocean, Cameron International Corporation, and Halliburton Energy Services, although it was considered likely by observers that these would be combined into one court as a multidistrict litigation. On 21 April 2011, BP issued $40 billion worth of lawsuits against rig owner Transocean, cementer Halliburton and blowout preventer manufacturer Cameron. The oil firm alleged failed safety systems and irresponsible behaviour of contractors had led to the explosion, including claims that Halliburton failed to properly use modelling software to analyze safe drilling conditions. The firms deny the allegations.

On 2 March 2012, BP and plaintiffs agreed to settle their lawsuits. The deal would settle roughly 100,000 claims filed by individuals and businesses affected by the spill.{{cite news |title=BP begins to put spill behind it with settlement |first1=Jonathan |last1=Fahey |first2=Chris |last2=Kahn |date=3 March 2012 |work=Boston.com |agency=The Associated Press |url=http://www.boston.com/news/nation/articles/2012/03/03/bp_begins_to_put_spill_behind_it_with_settlement/ |access-date=18 January 2014}} On 13 August, BP asked US District Judge Carl Barbier to approve the settlement, saying its actions "did not constitute gross negligence or willful misconduct". On 13 January 2013, Judge Barbier approved a medical-benefits portion of BP's proposed $7.8 billion partial settlement. People living for at least 60 days along oil-impacted shores or involved in the clean-up who can document one or more specific health conditions caused by the oil or dispersants are eligible for benefits, as are those injured during clean-up. BP also agreed to spend $105 million over five years to set up a Gulf Coast health outreach program and pay for medical examinations. According to a group presenting the plaintiffs, the deal has no specific cap. BP says that it has $9.5 billion in assets set aside in a trust to pay the claims, and the settlement will not increase the $37.2 billion the company budgeted for spill-related expenses. BP originally expected to spend $7.8 billion. By October 2013 it had increased its projection to $9.2 billion, saying it could be "significantly higher."

On 31 August 2012, the US Department of Justice (DOJ) filed papers in federal court in New Orleans blaming BP for the Gulf oil spill, describing the spill as an example of "gross negligence and willful misconduct". In their statement the DOJ said that some of BP's arguments were "plainly misleading" and that the court should ignore BP's

argument that the Gulf region is "undergoing a robust recovery". BP rejected the charges saying "BP believes it was not grossly negligent and looks forward to presenting evidence on this issue at trial in January."{{cite web |url=https://www.huffpost.com/entry/gulf-oil-spill-2010-bp-gross-negligence_n_1856209|title=Gulf Oil Spill 2010: U.S. Department Of Justice Accuses BP Of 'Gross Negligence And Willful Misconduct'|publisher=Reuters|via=Huffington Post|last=Ingram|first=David|orig-date=Originally published 4 September 2012|date=4 November 2012|access-date=20 March 2025}} The DOJ also said Transocean, the owner and operator of the Deepwater Horizon rig, was guilty of gross negligence as well.{{cite web |url=https://money.cnn.com/2012/09/05/news/companies/bp-oil-spill/index.html |title=DOJ accuses BP of 'gross negligence' in Gulf oil spill |date=5 September 2012 |publisher=CNN}}{{Cite web|url=http://www.stuarthsmith.com/wp-content/uploads/2012/09/7229-2.pdf|title=UNITED STATES DISTRICT COURT EASTERN DISTRICT OF LOUISIANA IN RE: OIL SPILL BY THE OIL RIG : MDL NO. 2179 "DEEPWATER HORIZON" IN THE GULF : OF MEXICO, ON APRIL 20, 2010|access-date=13 April 2013|archive-date=25 February 2021|archive-url=https://web.archive.org/web/20210225052320/http://www.stuarthsmith.com/wp-content/uploads/2012/09/7229-2.pdf|url-status=dead}}

On 14 November 2012, BP and the US Department of Justice reached a settlement. BP will pay $4.5 billion in fines and other payments, the largest of its kind in US history. In addition, the U.S. government temporarily banned BP from new federal contracts over its "lack of business integrity". The plea was accepted by Judge Sarah Vance of the United States District Court for the Eastern District of Louisiana on 31 January 2013. The settlement includes payments of $2.394 billion to the National Fish and Wildlife Foundation, $1.15 billion to the Oil Spill Liability Trust Fund, $350 million to the National Academy of Sciences for oil spill prevention and response research, $100 million to the North America Wetland Conservation Fund, $6 million to General Treasury and $525 million to the Securities and Exchange Commission. Oil sector analysts at London-based investment bank Canaccord Genuity noted that a settlement along the lines disclosed would only be a partial resolution of the many claims against BP.{{Cite web |url=https://www.rigzone.com/news/oil_gas/a/122140/BP_Will_Pay_45B_in_Plea_Deal_over_Macondo |title=BP Will Pay $4.5B in Plea Deal over Macondo |website=www.rigzone.com|access-date=5 July 2018}}

On 3 January 2013, the US Justice Department announced "Transocean Deepwater Inc. has agreed to plead guilty to violating the Clean Water Act and to pay a total of $1.4 billion in civil and criminal fines and penalties". $800 million goes to Gulf Coast restoration Trust Fund, $300 million to the Oil Spill Liability Trust Fund, $150 million to the National Wild Turkey Federation and $150 million to the National Academy of Sciences. MOEX Offshore 2007 agreed to pay $45 million to the Oil Spill Liability Trust Fund, $25 million to five Gulf state and $20 million to supplemental environmental projects.

On 25 July 2013, Halliburton pleaded guilty to destruction of critical evidence after the oil spill and said it would pay the maximum allowable fine of $200,000 and will be subject to three years of probation.{{cite news |title=Halliburton Pleads Guilty to Destroying Evidence After Gulf Spill |url=https://www.nytimes.com/2013/07/26/business/halliburton-pleads-guilty-to-destroying-evidence-after-gulf-spill.html |work=The New York Times |access-date=27 September 2013 |first=Clifford |last=Krauss |date=25 July 2013}}

In January 2014, a panel of the U.S. Fifth Circuit Court of Appeals rejected an effort by BP to curb payment of what it described as "fictitious" and "absurd" claims to a settlement fund for businesses and persons affected by the oil spill. BP said administration of the 2012 settlement was marred by the fact that people without actual damages could file a claim. The court ruled that BP had not explained "how this court or the district court should identify or even discern the existence of 'claimants that have suffered no cognizable injury.'"{{cite news |url=https://finance.yahoo.com/news/u-appeals-court-affirms-bp-033211520.html |title=BP appeal to stop 'fictitious' U.S. oil spill claims fails |work=Yahoo Finance |date=11 January 2014 |agency=Reuters |access-date=18 January 2014}} The Court then went further, calling BP's position "nonsensical".{{cite news |last1=Young |first1=Tom |title=Judges Call BP's Arguments "Nonsensical" |url=http://neworleans.legalexaminer.com/toxic-substances/judges-call-bps-arguments-nonsensical/ |access-date=29 March 2016 |work=The Legal Examiner |date=15 January 2014 |archive-date=7 February 2018 |archive-url=https://web.archive.org/web/20180207123225/http://neworleans.legalexaminer.com/toxic-substances/judges-call-bps-arguments-nonsensical/ |url-status=dead }}{{cite news |last1=Lahav |first1=Alexandra |title=The ideas that underly BP's cert petition don't make sense |url=http://neworleans.legalexaminer.com/toxic-substances/professor-lahav-the-ideas-that-underly-bps-cert-petition-dont-make-sense/ |access-date=29 March 2016 |work=The Legal Examiner |date=15 October 2014 |archive-date=11 June 2018 |archive-url=https://web.archive.org/web/20180611015907/http://neworleans.legalexaminer.com/toxic-substances/professor-lahav-the-ideas-that-underly-bps-cert-petition-dont-make-sense/ |url-status=dead }} The Supreme Court of the United States later refused to hear BP's appeal after victims and claimants, along with numerous Gulf coast area chambers of commerce, objected to the oil major's efforts to renege on the Settlement Agreement.{{cite news |last1=Young |first1=Tom |title=BP's Appeal Fails to Interest Supreme Court, Cert Denied |url=http://tampa.legalexaminer.com/toxic-substances/bps-appeal-fails-to-interest-supreme-court-cert-denied/ |access-date=29 March 2016 |work=The Legal Examiner |date=8 December 2014 |archive-url=https://web.archive.org/web/20160322093654/http://tampa.legalexaminer.com/toxic-substances/bps-appeal-fails-to-interest-supreme-court-cert-denied/ |archive-date=22 March 2016 |url-status=dead }}

In September 2014, Halliburton agreed to settle a large percentage of legal claims against it by paying $1.1 billion into a trust by way of three installments over two years.{{cite news |title=Halliburton to pay around $1.1 bn for US oil spill claims |url=https://www.reuters.com/article/us-halliburton-settlement-macondo-idUSKBN0GX1DT20140902 |date=2 September 2014 |access-date=3 September 2014 |work=Reuters}}

BP and its partners in the oil well, Transocean and Halliburton, went on trial on 25 February 2013 in the United States District Court for the Eastern District of Louisiana in New Orleans to determine payouts and fines under the Clean Water Act and the Natural Resources Damage Assessment. The plaintiffs included the U.S. Justice Department, Gulf states and private individuals. Tens of billions of dollars in liability and fines were at stake. A finding of gross negligence would result in a four-fold increase in the fines BP would have to pay for violating the federal Clean Water Act, and leave the company liable for punitive damages for private claims.{{cite news |last=Thompson |first=Richard |title=BP to begin presenting its defense Monday in Gulf oil spill trial |url=http://www.nola.com/news/gulf-oil-spill/index.ssf/2013/04/bp_to_begin_presenting_its_def.html |access-date=13 April 2013 |newspaper=The Times-Picayune |date=5 April 2013}}

The trial's first phase was to determine the liability of BP, Transocean, Halliburton, and other companies, and if they acted with gross negligence and willful misconduct. The second phase scheduled in September 2013 focused on the flow rate of the oil and the third phase scheduled in 2014 was to consider damages. According to the plaintiffs' lawyers the major cause of an explosion was the mishandling of a rig safety test, while inadequate training of the staff, poor maintenance of the equipment and substandard cement were also mentioned as things leading to the disaster. According to The Wall Street Journal the U.S. government and Gulf Coast states had prepared an offer to BP for a $16 billion settlement. However, it was not clear if this deal had been officially proposed to BP and if BP has accepted it.

On 4 September 2014, U.S. District Judge Carl Barbier ruled BP was guilty of gross negligence and willful misconduct. He described BP's actions as "reckless". He said Transocean's and Halliburton's actions were "negligent". He apportioned 67% of the blame for the spill to BP, 30% to Transocean, and 3% to Halliburton. Fines would be apportioned commensurate with the degree of negligence of the parties, measured against the number of barrels of oil spilled. Under the Clean Water Act fines can be based on a cost per barrel of up to $4,300, at the discretion of the judge. The number of barrels was in dispute at the conclusion of the trial with BP arguing 2.5 million barrels were spilled over the 87 days the spill lasted, while the court contends 4.2 million barrels were spilled. BP issued a statement strongly disagreeing with the finding, and saying the court's decision would be appealed.{{cite news |title=BP found "grossly negligent' in Gulf of Mexico oil spill |url=http://www.neworleanssun.com/index.php/sid/225407625 |date=4 September 2014 |access-date=5 September 2014 |publisher=New Orleans Sun}}

Barbier ruled that BP had acted with "conscious disregard of known risks" and rejected BP's assertion that other parties were equally responsible for the oil spill. His ruling stated that BP "employees took risks that led to the largest environmental disaster in U.S. history", that the company was "reckless", and determined that several crucial BP decisions were "primarily driven by a desire to save time and money, rather than ensuring that the well was secure." BP strongly disagreed with the ruling and filed an immediate appeal.{{cite news |last1=Robertson |first1=Campbell |last2=Krauss |first2=Clifford |title=BP May Be Fined Up to $18 Billion for Spill in Gulf |url=https://www.nytimes.com/2014/09/05/business/bp-negligent-in-2010-oil-spill-us-judge-rules.html |access-date=6 September 2014 |work=The New York Times |date=4 September 2014}}{{cite news |last1=Fisk |first1=Margaret Cronin |last2=Calkins |first2=Lauren Brubaker |last3=Feeley |first3=Jef |title='Worst Case' BP Ruling on Gulf Spill Means Billions More in Penalties |url=https://www.bloomberg.com/news/2014-09-04/bp-found-grossly-negligent-in-2010-gulf-of-mexico-spill.html |access-date=5 September 2014 |agency=Bloomberg LLP |date=4 September 2014}}

On 2 July 2015, BP, the U.S. Justice Department and five gulf states announced that the company agreed to pay a record settlement of $18.7 billion.{{cite news |url=https://www.theguardian.com/environment/2015/jul/02/bp-will-pay-largest-environmental-fine-in-us-history-for-gulf-oil-spill |work=The Guardian |first=Dominic |last=Rushe |title=BP set to pay largest environmental fine in US history for Gulf oil spill |date=2 July 2015}} To date BP's cost for the clean-up, environmental and economic damages and penalties has reached $54 billion.{{cite news |last1=Ed Crooks |first1=Christopher Adams |title=BP: Into uncharted waters |url=http://www.ft.com/cms/s/0/0a71ce8c-24b9-11e5-9c4e-a775d2b173ca.html |newspaper=Financial Times |date=9 July 2015 |access-date=10 August 2015}}

{{Main|Deepwater Horizon litigation}}

In addition to the private lawsuits and civil governmental actions, the federal government charged multiple companies and five individuals with federal crimes.

In the November 2012 resolution of the federal charges against it, BP agreed to plead guilty to 11 felony counts related to the deaths of the 11 workers and paid a $4 billion fine. Transocean pled guilty to a misdemeanor charge as part of its $1.4 billion fine.

In April 2012, the Justice Department filed the first criminal charge against Kurt Mix, a BP engineer, for obstructing justice by deleting messages showing that BP knew the flow rate was three times higher than initial claims by the company, and knew that "Top Kill" was unlikely to succeed, but claimed otherwise. Three more BP employees were charged in November 2012. Site managers Donald Vidrine and Robert Kaluza were charged with manslaughter for acting negligently in their supervision of key safety tests performed on the rig prior to the explosion, and failure to alert onshore engineers of problems in the drilling operation. David Rainey, BP's former vice-president for exploration in the Gulf of Mexico, was charged with obstructing Congress by misrepresenting the rate that oil was flowing out of the well. Lastly, Anthony Badalamenti, a Halliburton manager, was charged with instructing two employees to delete data related to Halliburton's cementing job on the oil well.{{cite web |title=Halliburton manager gets 1 year probation in Gulf oil spill. |url=http://www.cbsnews.com/news/halliburton-manager-gets-1-year-probation-in-gulf-oil-spill/ |website=CBS News|date=21 January 2014 }}

None of the charges against individuals resulted in any prison time, and no charges were levied against upper level executives. Anthony Badalementi was sentenced to one year probation, Donald Vidrine paid a $50,000 fine and received 10 months probation,{{cite web |title=Blowout: Four years after his indictment, one of the only people prosecuted for the Deepwater Horizon explosion tells his side of the story. |url=http://www.texasmonthly.com/articles/deepwater-horizon-prosecution/ |website=Texas Monthly |date=21 September 2016}} Kurt Mix received 6 months' probation,{{cite web|last=Gill|first=James|title=Disaster prosecution is, well, a disaster.|url=http://www.theadvocate.com/new_orleans/opinion/james_gill/article_16117cbb-81ae-5afd-9f02-df64fea8f8e3.html|website=The New Orleans Advocate|date=12 March 2016 }} and David Rainey and Robert Kaluza were acquitted.

• On 28 March 2011, Dispatches aired a documentary by James Brabazon, BP: In Deep Water, about the oil company, BP, covering oil spills in the Gulf of Mexico and other incidents and its relationship with Governments.{{Cite web|url=https://www.bfi.org.uk/films-tv-people/510b6fa2ec25a|archive-url=https://web.archive.org/web/20200729042923/https://www.bfi.org.uk/films-tv-people/510b6fa2ec25a|url-status=dead|archive-date=29 July 2020|title=BP – In Deep Water (2011)|website=BFI|access-date=11 February 2020}}{{Cite web|url=http://www.imdb.com/title/tt1902023/|title=BP: In Deep Water|access-date=11 February 2020|via=www.imdb.com}}
• In April 2012, the National Geographic Channel's documentary series Seconds From Disaster featured the accident in an episode titled "The Deepwater Horizon"{{Citation|title=The Deepwater Horizon|date=15 April 2012|url=http://www.imdb.com/title/tt2364227/|access-date=1 January 2020}}
• In 2012, Beyond Pollution 2012{{Cite web|url=https://www.amazon.com/dp/B009VH0ALW/|title=Beyond Pollution|date=15 January 2013|via=Amazon}}{{Cite web|url=https://www.youtube.com/watch?v=cLeS5vz9Oz4| archive-url=https://ghostarchive.org/varchive/youtube/20211028/cLeS5vz9Oz4| archive-date=28 October 2021|title=Beyond Pollution (2012) Trailer| date=7 August 2012|access-date=11 February 2020|via=www.youtube.com}}{{cbignore}}{{Cite web|url=http://www.beyondpollutionthefilm.com/|title=Beyond Pollution|website=www.beyondpollutionthefilm.com|access-date=11 February 2020}} traveled across the gulf coast interviewing environmental experts, government authorities, fishermen, scientists, drilling engineers, and key BP contractors, examining economic and health effects.
• In 2012, The Big Fix, documented the April 2010 oil spill in the Gulf of Mexico following the sinking of the Deepwater Horizon oil rig
• In 2014, The Great Invisible, by Margaret Brown chose to focus on the social impacts on people whose lives have been affected by this tragedy.{{Cite web|url=https://www.npr.org/2014/10/30/358578854/the-great-invisible-views-an-environmental-catastrophe-from-many-sides|title='The Great Invisible' Views An Environmental Catastrophe From Many Sides|website=NPR.org|date=30 October 2014 |access-date=11 February 2020|last1=Hachard |first1=Tomas }}{{IMDb title|qid=Q123536848|title=The Great Invisible}}{{cite web|url=http://www.texasmonthly.com/articles/going-deep/|title=Going Deep|date=24 December 2014|website=texasmonthly.com|access-date=9 July 2017}}{{Cite web|url=https://www.nationalgeographic.com/environment/great-energy-challenge/2014/the-great-invisible-wins-full-frames-best-environmental-film/|archive-url=https://web.archive.org/web/20200304161135/https://www.nationalgeographic.com/environment/great-energy-challenge/2014/the-great-invisible-wins-full-frames-best-environmental-film/|url-status=dead|archive-date=4 March 2020|title='The Great Invisible' Wins Full Frame's Best Environmental Film|date=9 April 2014|website=National Geographic|access-date=11 February 2020}}{{cite web|url=https://www.youtube.com/watch?v=piub_x0XJvs| archive-url=https://ghostarchive.org/varchive/youtube/20211028/piub_x0XJvs| archive-date=28 October 2021|title=The Great Invisible, Margaret Brown|last=DP/30: The Oral History Of Hollywood|date=30 October 2014|access-date=9 July 2017|via=YouTube}}{{cbignore}}{{Cite news|url=https://www.nytimes.com/2014/10/29/movies/the-great-invisible-on-the-deepwater-horizon-oil-spill.html|title=Disaster's Toll on the Gulf and Its People|first=Stephen|last=Holden|newspaper=The New York Times|date=28 October 2014|access-date=11 February 2020}}{{cite web|url=https://www.youtube.com/watch?v=6ixO_Ydx3MQ| archive-url=https://ghostarchive.org/varchive/youtube/20211028/6ixO_Ydx3MQ| archive-date=28 October 2021|title=The Great Invisible (Post-Screening Discussion)|last=The Aspen Institute|date=5 September 2014|access-date=9 July 2017|via=YouTube}}{{cbignore}} Later airing 19 April 2015 as the season 16, episode 14 of Independent Lens.{{IMDb title|qid=Q57960403|title=The Great Invisible}}{{Cite web|url=http://www.pbs.org/independentlens/films/great-invisible/|title=The Great Invisible | Deepwater Horizon Oil Spill | Independent Lens | PBS|website=PBS|access-date=11 February 2020}}
• In 2014, Vanishing Pearls: The Oystermen of Pointe a la Hache, Louisiana, documented the town of nearly 300 struggling to survive following the BP Oil Spill that left their crop dead and finances in ruin.{{Cite web|url=http://www.imdb.com/title/tt2281591/reference|title=Vanishing Pearls: The Oystermen of Pointe a la Hache (2014) – IMDb|via=www.imdb.com}}{{Cite web|url=https://www.youtube.com/watch?v=kv_fSdu_tI8| archive-url=https://ghostarchive.org/varchive/youtube/20211028/kv_fSdu_tI8| archive-date=28 October 2021|title=Vanishing Pearls: The Oystermen of Pointe a la Hache Official Trailer 1 (2014) HD| date=22 March 2014|via=www.youtube.com}}{{cbignore}}{{Cite web|url=https://variety.com/2014/film/reviews/slamdance-film-review-vanishing-pearls-the-oystermen-of-pointe-a-la-hache-1201075658/|title=Slamdance Film Review: 'Vanishing Pearls: The Oystermen of Pointe a la Hache'|first=Ronnie|last=Scheib|date=29 January 2014}}{{Cite web|url=https://www.latimes.com/entertainment/movies/moviesnow/la-et-mn-vanishing-pearls-review-20140418-story.html|title=Review: 'Vanishing Pearls' shows fallout after Gulf disasters|date=17 April 2014|website=Los Angeles Times}}
• In 2016, Pretty Slick, documented the cleanup effort and locals across four Gulf states about the largest man-made environmental disaster in U.S. history.{{Cite web|url=http://www.imdb.com/title/tt7266954/reference|title=Pretty Slick (2016) – IMDb|via=www.imdb.com}}{{Cite web|url=https://www.youtube.com/watch?v=7El5PWBJJQY| archive-url=https://ghostarchive.org/varchive/youtube/20211028/7El5PWBJJQY| archive-date=28 October 2021|title=Pretty Slick Trailer| date=6 May 2014|via=www.youtube.com}}{{cbignore}}

{{cite web

|url=https://www.amazon.com/dp/B01GSZAI20

|title=Pretty Slick 2014

|trans-title=55min

|last= Fox

|first= James

|publisher= Janson Media

}}

{{cite web

|url=https://www.amazon.com/Pretty-Slick-Deepwater-Expanded-Directors/dp/B01MSVZXDE

|title=Pretty Slick: The BP Deepwater Horizon Exposed – Updated and Expanded Directors Cut

|trans-title= 1h 11min

|last= Fox

|first= James

|publisher=UFOTV

}}

• In 2016, After the Spill,{{Cite web|url=http://www.imdb.com/title/tt5075328/|title=After the Spill|access-date=11 February 2020|via=www.imdb.com}} Jon Bowermaster investigates how the disaster affected local economies and the health of humans, animals, and food sources, and with Corexit, where all the oil went, as a follow-up to the pre-spill SoLa, Louisiana Water Stories, in post-production when the Deepwater Horizon exploded.{{Cite web|url=https://www.pace.edu/mypace/focus-on-nature-film-series-plv|title=Focus on Nature: Film Series (PLV) | Current Students | October 15, 2015 | PACE UNIVERSITY|website=www.pace.edu|access-date=11 February 2020|archive-date=2 September 2016|archive-url=https://web.archive.org/web/20160902205356/http://www.pace.edu/mypace/focus-on-nature-film-series-plv|url-status=dead}}{{Cite web|url=https://www.pastemagazine.com/articles/2015/02/new-film-focuses-on-the-demise-of-louisianas-coast-1.html|title=New Film Focuses on the Demise of Louisiana's Coast|date=3 February 2015|website=pastemagazine.com|access-date=11 February 2020|archive-date=8 March 2021|archive-url=https://web.archive.org/web/20210308202157/https://www.pastemagazine.com/travel|url-status=dead}}{{Cite web|url=https://www.oceans8films.com/after-the-spill/|title=After the Spill: Louisiana Water Stories, Part II|access-date=11 February 2020}}{{Cite web|url=https://vimeo.com/oceans8|title=Oceans 8 Films|website=Vimeo|access-date=11 February 2020}}
• In 2016, Dispatches from the Gulf,{{Cite web|url=https://www.amazon.com/Journey-Planet-Earth-Dispatches-Gulf/dp/B0835QD7J3|title=Amazon.com: Journey to Planet Earth: Dispatches from the Gulf 1 : Matt Damon, Hal Weiner, Hal Weiner, Marilyn Weiner: Prime Video|website=www.amazon.com}}{{Cite web|url=https://www.youtube.com/channel/UC0g9Yty_DUQsVRsjquRgqog|title=Dispatches from the Gulf|website=YouTube|access-date=11 February 2020}} Hal Weiner{{Cite web|url=http://www.journeytoplanetearth.com/dispatches.html|title=Dispatches from the Gulf – Screenscope – Journey to Planet Earth|website=www.journeytoplanetearth.com|access-date=11 February 2020}}{{Cite web|url=https://feeds.soundcloud.com/users/soundcloud:users:254138835/sounds.rss|title=GulfCast: Dispatches from the Gulf|website=feeds.soundcloud.com|access-date=11 February 2020|archive-date=7 March 2021|archive-url=https://web.archive.org/web/20210307035413/http://feeds.soundcloud.com/users/soundcloud:users:254138835/sounds.rss|url-status=dead}} follows scientists{{Cite web|url=https://www.youtube.com/watch?v=hhYzLCxhmjU| archive-url=https://ghostarchive.org/varchive/youtube/20211028/hhYzLCxhmjU| archive-date=28 October 2021|title=Meet David Murphy: The Next Generation of Scientists (Gulf Dispatches)| date=21 June 2016|access-date=11 February 2020|via=www.youtube.com}}{{cbignore}}{{Cite web|url=https://www.murphyfluidslab.com/press-outreach|title=Press & Outreach|website=murphyfluidslab|access-date=11 February 2020}} investigating the oil spill's effect on the Gulf.{{Cite web|url=http://www.imdb.com/title/tt5469654/|title=Dispatches from the Gulf|date=25 March 2016|access-date=11 February 2020|via=www.imdb.com}}{{Cite web|url=https://dispatchesfromthegulf.com/dispatches-from-the-gulf-a-new-documentary/|title=Dispatches from the Gulf: A New Documentary|date=29 January 2016|website=Dispatches from the Gulf|access-date=11 February 2020}}{{Cite web|url=https://dispatchesfromthegulf.com/dispatches-from-the-gulf-2-selected-by-the-16th-annual-international-ocean-film-festival/|title='Dispatches from the Gulf 2' Selected by the 16th Annual International Ocean Film Festival|date=26 January 2019|website=Dispatches from the Gulf|access-date=11 February 2020}}

• In 2012, "We Just Decided To", the pilot of the HBO TV series The Newsroom, featured its characters covering the Deepwater Horizon story.{{cite news |url=https://www.avclub.com/the-newsroom-we-just-decided-to-1798173264 |title=The Newsroom: "We Just Decided To" |author=Scott Tobias |date=22 June 2012 |newspaper=AV Club| access-date=1 August 2018}}
• The 2015 film The Runner, directed by Austin Stark and starring Nicolas Cage, is a fictional story of a politician and his family set in the aftermath of the Deepwater Horizon disaster.{{cite web |url=http://voices.nationalgeographic.com/2015/08/04/the-movie-bp-probably-doesnt-want-you-to-see/ |archive-url=https://web.archive.org/web/20151104192231/http://voices.nationalgeographic.com/2015/08/04/the-movie-bp-probably-doesnt-want-you-to-see/ |url-status=dead |archive-date=4 November 2015 |title=The Movie BP (Probably) Doesn't Want You To See |first=Andrew |last=Kornblatt |publisher=National Geographic Society |date=4 August 2015 |access-date=2 November 2016}}{{cite web |url=https://filmschoolrejects.com/nicolas-cage-gets-serious-about-the-bp-oil-spill-in-the-the-runner-trailer-6208f9a50995 |title=Nicolas Cage Gets Serious About the BP Oil Spill In The Runner Trailer |first=Christopher |last=Campbell |publisher=Film School Rejects |date=17 June 2015 |access-date=2 November 2016 |archive-date=11 December 2018 |archive-url=https://web.archive.org/web/20181211061755/https://filmschoolrejects.com/nicolas-cage-gets-serious-about-the-bp-oil-spill-in-the-the-runner-trailer-6208f9a50995/ |url-status=dead }}
• In 2016, Deepwater Horizon, a film based on the explosion, directed by Peter Berg and starring Mark Wahlberg was released.{{cite web|url=https://variety.com/2016/film/reviews/deepwater-horizon-review-mark-wahlberg-1201859869/|title=Film Review: 'Deepwater Horizon'|first1=Peter|last1=Debruge|date=14 September 2016|access-date=1 February 2019}}

• In 2011, Jimmy Fallon, then host of Late Night with Jimmy Fallon, created a protest song about how there were still tarballs floating around the Gulf of Mexico called "Balls In Your Mouth". He performed it a number of times on the show with different guest singers, including Eddie Vedder,{{cite magazine|title=Eddie Vedder and Jimmy Fallon 'Balls in Your Mouth'|url=https://www.rollingstone.com/music/music-news/eddie-vedder-and-jimmy-fallon-balls-in-your-mouth-241884/|magazine=Rolling Stone|date=9 September 2011|access-date=22 September 2021|archive-date=10 October 2021|archive-url=https://web.archive.org/web/20211010023120/https://www.rollingstone.com/music/music-news/eddie-vedder-and-jimmy-fallon-balls-in-your-mouth-241884/|url-status=dead}} Russell Crowe,{{cite magazine|title=Russell Crowe and Jimmy Fallon sing 'Balls in Your Mouth'|url=https://ew.com/article/2015/04/23/russell-crowe-jimmy-fallon-balls-in-your-mouth/|magazine=Entertainment Weekly|date=23 April 2015|access-date=22 September 2021}} Brad Paisley,{{cite web|title=Jimmy Fallon & Brad Paisley Sing "Balls In Your Mouth" (Late Night with Jimmy Fallon)|url=https://www.youtube.com/watch?v=TvBwpIsrSOw|website=YouTube|date=30 July 2013|access-date=22 September 2021}} and Florence Welch.{{cite web|title=Audience Suggestion Box: Jimmy Fallon & Florence Welch Sing "Balls In Your Mouth"|url=https://www.youtube.com/watch?v=Cy2PHZvDD8A| archive-url=https://ghostarchive.org/varchive/youtube/20211028/Cy2PHZvDD8A| archive-date=28 October 2021|website=YouTube|date=13 September 2012|access-date=22 September 2021}}{{cbignore}} The live recording of the song featuring Eddie Vedder was included in Fallon's comedy album "Blow Your Pants Off".{{cn|date=March 2025}}
• In 2011, Rise Against released a song titled "Help Is on the Way" on their album Endgame. The song is about the slow response time for aid to disaster-stricken areas, with lyrics that allude to the Macondo spill and Hurricane Katrina.{{cite web|last=Grischow|first=Chad|title=Rise Against: Endgame Review|url=http://www.ign.com/articles/2011/03/14/rise-against-endgame-review|website=IGN|date=14 March 2011|access-date=14 March 2011}}
• In June 2011, Canadian musician City and Colour released a song titled "At the Bird's Foot" on his album Little Hell. The song is about the event and the greed of those involved.{{cite web | url=https://exclaim.ca/music/article/city_colour_remembers_bp_oil_spill_with_new_charity_track | title=City and Colour Remembers BP Oil Spill with New Charity Track | Exclaim! }}
• On Election Day, 6 November 2012, Pete Seeger and Lorre Wyatt released the music video and single "God's Counting on Me, God's Counting on You", which they recorded and filmed live aboard the Hudson River Sloop Clearwater in 2010 immediately after the Deepwater Horizon oil spill. The song references the spill.Seeger, Pete. [https://www.youtube.com/watch?v=cvnsB_kVNYI "God's Counting on Me, God's Counting on You"], YouTube, accessed 5 December 2012
• In 2012, American singer-songwriter Andrew Bird released the song "Hole in the Ocean Floor" referencing the Deepwater Horizon oil spill as his inspiration.{{Cite web |date=7 March 2012 |title=Andrew Bird |url=https://www.avclub.com/andrew-bird-1798230238 |access-date=18 May 2023 |website=The A.V. Club |language=en}}

• The Deepwater Horizon oil spill is referenced in a 2010 episode of South Park, "Coon 2: Hindsight". When a BP drilling vessel drills a new hole in the Gulf, it accidentally causes an oil spill in a protected zone, prompting one of the crewmen to exclaim "Oh, don't tell me we did it again?". Later on in the episode, BP drilled again and opened up a portal to another dimension, causing the gulf to be attacked by its creatures. Then they drilled on the Moon hoping to change the gravitational pull on the Earth and quell the swells on the ocean, allowing them to place a cap on the portal. Unfortunately, in doing this, Cthulhu emerged from the portal. Each time they drilled, Tony Hayward released a "we're sorry" campaign.{{Cite AV media |url=https://www.youtube.com/watch?v=8z_riJgT9RY |title=South Park - Tony Hayward BP Parody - "We're Sorry" |date=2010-10-31 |last= |access-date= |via=YouTube}} The hole in the Gulf wasn't shut until two episodes later.{{cn|date=March 2025}}
• The Beavis and Butt-Head season 8 episode, "Spill", takes place at the Gulf when their teacher, Mr. Van Driessen, organizes a trip to help clean baby birds affected by the oil spill. The boys mistakingly believe they will be having sex with "filthy chicks" and volunteer to go.{{cn|date=March 2025}}

{{Portal|United States|Environment}}

• Exxon Valdez oil spill
• List of industrial disasters
• List of oil spills
• Offshore oil and gas in the Gulf of Mexico (United States)
• Taylor oil spill
• Timeline of the Deepwater Horizon oil spill
• Two barrier rule

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{{cite web |url=https://incidentnews.noaa.gov/incident/8220 |title = Deepwater Horizon | publisher = National Oceanic and Atmospheric Administration |access-date= 28 June 2019}}

{{cite news |url=http://www.aljazeera.com/news/americas/2010/07/20107150283268524.html |title=BP begins testing new oil well cap | work =Al Jazeera |access-date=3 March 2013 |date=15 July 2010}}

{{cite news |url=http://www.nwf.org/News-and-Magazines/National-Wildlife/Birds/Archives/2010/Oil-Spill-Birds.aspx |title=Bird Habitats Threatened by Oil Spill |work=National Wildlife |last=Tangley |first=Laura |publisher=National Wildlife Federation |date=30 April 2010 |access-date=3 May 2010}}

{{cite news |url=https://abcnews.go.com/US/exclusive-submarine-dive-finds-oil-dead-sea-life/story?id=12305709 |title=Submarine Dive Finds Oil, Dead Sea Life at Bottom of Gulf of Mexico |first1=Matt |last1=Gutman |first2=Sarah |last2=Netter |work=ABS News |date=3 December 2010 |access-date=26 February 2011}}

{{cite news |url=https://edition.cnn.com/2011/OPINION/01/13/beinecke.gulf.oil.commission/ |publisher=CNN |title=Foul waters, hard lessons from BP oil spill |date=13 January 2011}}

{{cite news |last=Polson |first=Jim |url=https://www.bloomberg.com/news/2011-07-15/bp-oil-still-washing-ashore-one-year-after-end-of-gulf-spill.html |title=BP Oil Still Ashore One Year After End of Gulf Spill |publisher=Bloomberg |date=15 July 2011 |access-date=5 November 2011}}

{{cite web |url=http://www.nmfs.noaa.gov/pr/health/mmume/cetacean_gulfofmexico2010.htm#map |title=2010–2011 Cetacean Unusual Mortality Event in Northern Gulf of Mexico – Office of Protected Resources – NOAA Fisheries |publisher=Nmfs.noaa.gov |date=1 November 2011 |access-date=5 November 2011}}

{{cite web |author=Dahr Jamail |url=http://www.aljazeera.com/indepth/features/2012/04/201241682318260912.html |title=Gulf seafood deformities alarm scientists – Features |publisher=Al Jazeera |access-date=1 June 2012}}

{{cite web |url=http://news.nationalgeographic.com/news/energy/2012/03/120322-gulf-oil-spill-tar-balls-wash-up-on-beaches/ |archive-url=https://web.archive.org/web/20120322231227/http://news.nationalgeographic.com/news/energy/2012/03/120322-gulf-oil-spill-tar-balls-wash-up-on-beaches/ |url-status=dead |archive-date=22 March 2012 |title=Tar Balls from BP Oil Spill Wash Up on Gulf Beaches |work=National Geographic |date=22 March 2012 |access-date=1 June 2012}}

{{cite news |first=Mark |last=Schleifstein |newspaper=The Times-Picayune |url=http://www.nola.com/news/gulf-oil-spill/index.ssf/2012/04/spilled_bp_oil_lingers_on_loui.html |date=20 April 2012 |title=Spilled BP oil lingers on Louisiana coast |access-date=1 June 2012}}

{{cite news |url=https://www.telegraph.co.uk/finance/newsbysector/energy/oilandgas/8242557/Obama-oil-spill-commissions-final-report-blames-disaster-on-cost-cutting-by-BP-and-partners.html |title=Obama oil spill commission's final report blames disaster on cost-cutting by BP and partners |work=The Daily Telegraph |date=5 January 2011 |access-date=5 November 2011 |location=London}}

{{cite press release |url=http://www.boemre.gov/ooc/press/2011/press0914.htm |title=Deepwater Horizon Joint Investigation Team Releases Final Report |author=Bureau of Ocean Energy Management, Regulation and Enforcement (BOEMRE)/U.S. Coast Guard Joint Investigation Team |publisher=U.S. Government |date=14 September 2011 |access-date=6 October 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110924075744/http://www.boemre.gov/ooc/press/2011/press0914.htm |archive-date=24 September 2011}}

{{cite web |url=http://www.theatlanticwire.com/national/2011/09/bp-mostly-not-entirely-blame-gulf-spill/42470/ |title=BP Mostly, But Not Entirely, to Blame for Gulf Spill – National |publisher=The Atlantic Wire |date=14 September 2011 |access-date=1 June 2012 |archive-date=2 August 2013 |archive-url=https://web.archive.org/web/20130802093130/http://www.theatlanticwire.com/national/2011/09/bp-mostly-not-entirely-blame-gulf-spill/42470/ |url-status=dead }}

{{Cite news |url=http://www.huffingtonpost.com/2012/04/24/kurt-mix-bp-engineer-oil-spill_n_1449316.html |title=Kurt Mix, BP Engineer, Faces First Oil Spill Charges |first=John |last=Rudolf |date=24 April 2012 |work=Huffington Post |access-date=17 November 2012}}

{{cite web |url=https://www.propublica.org/article/feds-file-first-criminal-charges-related-to-bp-gulf-spill |title=Feds File First Criminal Charges Related to BP Gulf Spill |publisher=ProPublica |date=24 April 2012 |access-date=1 June 2012}}

{{cite news |url=https://www.theguardian.com/environment/2012/nov/28/epa-suspends-bp-oil-spill |title=BP suspended from new US federal contracts over Deepwater disaster |first1=Suzanne |last1=Goldenberg|first2=Terry|last2=Macalister|date=28 November 2012|access-date=20 March 2025|newspaper=The Guardian}}

{{cite web |url=http://www.deepwater.com/fw/main/IDeepwater-Horizon-i-Drills-Worlds-Deepest-Oil-and-Gas-Well-419C151.html |title=Transocean :: Deepwater Horizon Drills World's Deepest Oil & Gas Well |publisher=deepwater.com |year=2012 |access-date=20 November 2012 |url-status=dead |archive-url=https://web.archive.org/web/20100426171257/http://www.deepwater.com/fw/main/IDeepwater-Horizon-i-Drills-Worlds-Deepest-Oil-and-Gas-Well-419C151.html |archive-date=26 April 2010 }}

{{cite news |url=http://www.rigzone.com/news/article.asp?a_id=91509 |title=Deepwater Horizon Sinks Offshore Louisiana |date=22 April 2010 |newspaper=RIGZONE Industry News, Stories, Analysis and Editorial}}

{{cite news |url=http://usatoday30.usatoday.com/news/nation/2010-04-21-louisiana-oil-rig_N.htm |title=At least 11 workers missing after La. oil rig explosion |first=Rick |last=Jervis |agency=Associated Press |newspaper=USA Today |date=21 April 2010 |access-date=21 April 2010}}

{{Cite press release |title=BP confirms that Transocean Ltd issued the following statement today |publisher=BP |date=21 April 2010 |url=http://www.bp.com/genericarticle.do?categoryId=2012968&contentId=7061443 |access-date=21 April 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100425040406/http://www.bp.com/genericarticle.do?categoryId=2012968&contentId=7061443 |archive-date=25 April 2010 }}

{{cite web |url=http://www.subseaiq.com/Data/Project.aspx?project_Id=562 |title=Offshore Field Development Projects: Macondo |publisher=Subsea.Org |access-date=18 May 2010}}

{{cite news |url=http://www.upstreamonline.com/live/article212769.ece |title=Coast Guard confirms Horizon sinks |newspaper=Upstream Online |publisher=NHST Media Group |first1=Noah |last1=Brenner |first2=Anthony |last2=Guegel |first3=Tan |last3=Hwee Hwee |first4=Anthea |last4=Pitt |date=22 April 2010 |access-date=22 April 2010}}

{{cite news |url=http://www.scpr.org/news/2010/05/08/14902/bubble-methane-triggered-rig-blast/ |title=Bubble of methane triggered rig blast |publisher=Southern California Public Radio |agency=Associated Press |first1=Naoki |last1=Schwartz |first2=Harry R. |last2=Weber |date=1 May 2010 |access-date=29 June 2010 |archive-date=27 February 2021 |archive-url=https://web.archive.org/web/20210227191636/https://www.scpr.org/news/2010/05/08/14902/bubble-methane-triggered-rig-blast/ |url-status=dead }}

{{cite news |url=http://www.nola.com/news/index.ssf/2010/04/rescued_oil_rig_workers_arrive.html |newspaper=The Times-Picayune |title=Rescued oil rig explosion workers arrive to meet families at Kenner hotel |first=Chris |last=Kirkham |date=22 April 2010 |access-date=22 April 2010}}

{{cite news |url=https://www.nytimes.com/2010/04/24/us/24spill.html |title=Search Ends for Missing Oil Rig Workers |last=Kaufman |first=Leslie |date=24 April 2010 |access-date=24 April 2010 |newspaper=The New York Times |page=A8}}

{{cite news |title=Coast Guard: Oil rig that exploded has sunk |date=22 April 2010 |url=http://news.blogs.cnn.com/2010/04/22/coast-guard-oil-rig-that-exploded-has-sunk/ |archive-url=https://web.archive.org/web/20100425071200/http://news.blogs.cnn.com/2010/04/22/coast-guard-oil-rig-that-exploded-has-sunk/ |url-status=dead |archive-date=25 April 2010 |publisher=CNN |access-date=30 April 2010}}

{{cite news |url=http://www.huffingtonpost.com/2013/01/12/bp-seeks-judges-ruling-o_n_2459184.html |title=BP Seeks Gulf Oil Spill Size Ruling From Judge |first=Michael |last=Kunzelman |newspaper=Huffington Post |agency=Associated Press |date=11 January 2013 |access-date=20 January 2013}}

{{cite news |url=http://news.bbc.co.uk/2/hi/americas/8651624.stm |title=US military joins Gulf of Mexico oil spill effort |date=29 April 2010 |work=BBC News |access-date=29 April 2010}}

{{cite news |title=White House Struggles as Criticism on Leak Mounts |url=https://www.nytimes.com/2010/05/31/us/31spill.html |newspaper=The New York Times |date=30 May 2010 |first1=Clifford |last1=Krauss |first2=John |last2=Broder |first3=Jackie |last3=Calmes |access-date=1 June 2010}}

{{cite news |last=Henry |first=Ray |title=Scientists up estimate of leaking Gulf oil |url=http://www.nbcnews.com/id/37717335/#slice-2 |archive-url=https://web.archive.org/web/20130704060100/http://www.nbcnews.com/id/37717335#slice-2 |url-status=dead |archive-date=4 July 2013 |access-date=15 June 2010 |publisher=MSNBC |date=15 June 2010 |agency=Associated Press}}

{{cite news |url=https://www.cbc.ca/news/world/robot-subs-trying-to-stop-gulf-oil-leak-1.865745 |title=Robot subs trying to stop Gulf oil leak |publisher=CBC News |date=25 April 2010 |access-date=25 April 2010}}

{{cite news |last1=Gillis |first1=Justin |last2=Robertson |first2=Campbell |title=Gulf Surface Oil Vanishing Quickly |work=The New York Times |date=28 July 2010 |url=https://www.nytimes.com/2010/07/28/us/28spill.html}}

{{cite news |url=http://www.myrtlebeachonline.com/2010/08/05/1620679/doubts-follow-rosy-oil-report.html |title=Doubts follow rosy oil report |last1=Bolsatd |first1=Erika |last2=Schoof |first2=Renee |last3=Talev |first3=Margaret |work=The Sun News |date=5 August 2010 |access-date=5 August 2010 |url-status=dead |archive-url=https://web.archive.org/web/20120403033047/http://www.myrtlebeachonline.com/2010/08/05/1620679/doubts-follow-rosy-oil-report.html |archive-date=3 April 2012 }}

{{cite news |last=Zabarenko |first=Deborah |url=https://www.reuters.com/article/us-oil-spill-risk-idUSTRE6730IJ20100804 |title=Nearly 3/4 of BP spill oil gone from Gulf |work=Reuters |date=4 August 2010 |access-date=15 August 2010}}

{{cite news |url=http://news.oneindia.in/2010/08/06/scientistscall-new-gulf-spill-reportludicrous.html |title=Scientists call new gulf spill report 'ludicrous' – Oneindia News |publisher=News.oneindia.in |access-date=15 August 2010}}

{{cite news |title=BP has another setback as oil slick threatens Florida |url=http://www.cleveland.com/business/index.ssf/2010/06/bp_frees_saw_from_pipe_oil_thr.html |access-date=26 February 2011 |first=Greg |last=Bluestein |date=3 June 2010 |work=The Plain Dealer |agency=Associated Press}}

{{cite news |url=http://www.myrtlebeachonline.com/2010/06/24/1550150/oil-spewing-once-again-in-the.html |title=Oil spewing once again in the Gulf |last=Kunzelman |first=Michael |work=The Sun News |agency=Associated Press |date=24 June 2010 |access-date=24 June 2010 |archive-url=https://web.archive.org/web/20120320070710/http://www.myrtlebeachonline.com/2010/06/24/1550150/oil-spewing-once-again-in-the.html |archive-date=20 March 2012 |url-status=dead }}

{{cite news |url=http://oilspilldisasters.com/admiral-gulf-coast-spill-976407a |title=Admiral back on the Gulf Coast for spill |last1=McConnaughey |first1=Janet |last2=Stacy |first2=Mitch |work=The Sun News |agency=Associated Press |date=27 June 2010 |access-date=1 July 2010 |archive-url=https://web.archive.org/web/20120322111136/http://oilspilldisasters.com/admiral-gulf-coast-spill-976407a |archive-date=22 March 2012 |url-status=dead}}

{{cite news |url=http://www.myrtlebeachonline.com/2010/07/06/1571890/bp-spill-spreads-to-texas.html |title=BP spill spreads to Texas |last=Lozano |first=Juan A. |work=The Sun News |agency=Associated Press |date=6 July 2010 |access-date=6 July 2010 |url-status=dead |archive-url=https://web.archive.org/web/20120403033053/http://www.myrtlebeachonline.com/2010/07/06/1571890/bp-spill-spreads-to-texas.html |archive-date=3 April 2012 }}

{{cite news |url=https://www.washingtonpost.com/wp-dyn/content/article/2010/07/06/AR2010070605045.html |title=Oil in Lake Pontchartrain stokes worries in New Orleans |last1=Mui |first1=Ylan Q. |last2=Fahrenthold |first2=David A. |newspaper=The Washington Post |date=7 July 2010 |access-date=8 July 2010}}

{{cite web |url=http://www.nola.com/outdoors/index.ssf/2010/09/new_wave_of_oil_comes_ashore_w.html |title=New wave of oil comes ashore west of Mississippi River |first=Bob |last=Marshall |date=12 September 2010 |newspaper=The Times-Picayune |access-date=14 September 2010}}

{{cite news |url=http://news.bbc.co.uk/2/hi/americas/8656627.stm |title=US oil spill 'threatens way of life', governor warns |date=2 May 2010 |work=BBC News |access-date=2 May 2010}}

{{cite news |url=https://www.thestar.com/news/world/2010/05/14/engineers_work_to_place_siphon_tube_at_oil_spill_site.html |title=Engineers work to place siphon tube at oil spill site |first1=Erika |last1=Bolstad |first2=Lesley |last2=Clark |first3=Daniel |last3=Chang |publisher=McClatchy Newspapers |newspaper=Toronto Star |date=14 May 2010 |access-date=14 May 2010}}

{{cite news |url=https://www.bbc.co.uk/news/10191622 |title='Top kill' BP operation to half US oil leak fails |date=29 May 2010 |access-date=29 May 2010 |work=BBC News}}

{{cite news |url=http://www.upstreamonline.com/live/article216214.ece |title=Top kill fails |newspaper=Upstream Online |publisher=NHST Media Group |date=28 May 2010 |access-date=1 June 2010}}

{{cite news |url=http://www.upstreamonline.com/live/article215093.ece |title=BP misses on first tube try |first1=Noah |last1=Brenner |first2=Anthony |last2=Guegel |first3=Anthea |last3=Pitt |newspaper=Upstream Online |publisher=NHST Media Group |date=15 May 2010 |access-date=30 June 2010}}

{{cite press release |url=http://www.bp.com/genericarticle.do?categoryId=2012968&contentId=7062283 |title=Update on Gulf of Mexico Oil Spill Response – May 24 |publisher=BP |date=24 May 2010 |access-date=24 May 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100524113229/http://www.bp.com/genericarticle.do?categoryId=2012968&contentId=7062283 |archive-date=24 May 2010 }}

{{cite news |url=http://www.knoxnews.com/news/2010/may/27/gulf-awaits-word-latest-bid-plug-oil-leak/ |title=Gulf awaits word on latest bid to plug oil leak |first1=Ben |last1=Nuckols |first2=Greg |last2=Bluestein |agency=Associated Press |newspaper=Knoxville News |date=27 May 2010 |access-date=29 June 2010}}

{{cite news |url=https://www.cnbc.com/2010/06/05/oil-stains-beaches-and-tourists-as-slick-spreads.html |title=Oil stains beaches and tourists as slick spreads |last1=Nelson |first1=Melissa |last2=Mohr |first2=Holbrook |publisher=CNBC |agency=Associated Press |date=5 June 2010 |access-date=29 June 2010 |url-status=live |archive-url=https://web.archive.org/web/20110430004459/https://www.cnbc.com/id/37527612/Oil_Stains_Beaches_and_Tourists_as_Slick_Spreads |archive-date=30 April 2011 }}

{{cite news |url=http://www.upstreamonline.com/live/article218091.ece |title=Hayward says spill 'never should have happened' |last1=Brenner |first1=Noah |newspaper=Upstream Online |publisher=NHST Media Group |date=17 June 2010 |access-date=17 June 2010}}

{{cite news |url=http://www.bostonherald.com/news/national/south/view.bg?articleid=1267053 |title=Robots begin work to remove cap from gushing well |last=Breen |first=Tom |newspaper=Boston Herald |agency=Associated Press |date=9 July 2010 |access-date=26 February 2011 }}{{dead link|date=February 2019|bot=medic}}{{cbignore|bot=medic}}

{{cite web |last=Wells |first=Kent |title=Sealing Cap Installation Animation |url=http://bp.concerts.com/gom/sealingcapinstallationanimationwithkentwells070910.htm |publisher=BP |access-date=18 July 2010 |archive-date=14 July 2010 |archive-url=https://web.archive.org/web/20100714170917/http://bp.concerts.com/gom/sealingcapinstallationanimationwithkentwells070910.htm |url-status=dead }}

{{cite web |url=http://www.bp.com/liveassets/bp_internet/globalbp/globalbp_uk_english/incident_response/STAGING/local_assets/images/relief_well_diagram.jpg |title=Relief wells and Subsea containment illustration |publisher=BP |url-status=dead |archive-url=https://web.archive.org/web/20100720122111/http://www.bp.com/liveassets/bp_internet/globalbp/globalbp_uk_english/incident_response/STAGING/local_assets/images/relief_well_diagram.jpg |archive-date=20 July 2010 }}

{{cite news |url=http://www.upstreamonline.com/live/article215111.ece |title=Second Macondo relief well under way |newspaper=Upstream Online |publisher=NHST Media Group |date=17 May 2010 |access-date=25 May 2010}}

{{cite news |url=http://usatoday30.usatoday.com/news/nation/2010-06-14-oil-relief-well_N.htm |title=Relief wells aim at pipe 18,000 feet deep |work=USA Today |date=14 June 2010 |access-date=15 June 2010 |first=Dan |last=Vergano}}

{{cite web |author=The Oil Drum |url=http://www.theoildrum.com/node/6810 |title=BP's Deepwater Oil Spill – Tests End and the Kill Begins, Well Reaches Static Condition |publisher=Theoildrum.com |date=4 August 2010 |access-date=27 December 2011}}

{{cite news |url=https://www.washingtonpost.com/wp-dyn/content/article/2010/08/05/AR2010080503076.html |title=BP begins pumping cement in next stage of 'static kill' |newspaper=The Washington Post |date=5 August 2010 |access-date=27 December 2011 |first1=Joel |last1=Achenbach |first2=Steven |last2=Mufson |first3=William |last3=Branigin}}

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{{cite news |last=Bosquet |first=Steve |title=Party-line vote ends Florida's oil drilling ban special session |url=http://www.miamiherald.com/2010/07/20/1738869/party-line-vote-ends-floridas.html |archive-url=https://web.archive.org/web/20100722131427/http://www.miamiherald.com/2010/07/20/1738869/party-line-vote-ends-floridas.html |archive-date=22 July 2010 |access-date=20 July 2010 |newspaper=The Miami Herald |date=20 July 2010 |url-status=dead }}

{{cite news |first1=Bill |last1=Sasser |url=http://www.csmonitor.com/USA/2010/0524/Despite-BP-oil-spill-Louisiana-still-loves-Big-Oil |title=Despite BP oil spill, Louisiana still loves Big Oil |work=The Christian Science Monitor |date=24 May 2010}}

{{cite web |url=http://www.wkrg.com/gulf_oil_spill/article/mississippi-ag-sues-kenneth-feinberg/1208163/Jul-12-2011_3-21-pm/ |title=Mississippi AG Sues Kenneth Feinberg |publisher=WKRG |access-date=5 November 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110717235516/http://www.wkrg.com/gulf_oil_spill/article/mississippi-ag-sues-kenneth-feinberg/1208163/Jul-12-2011_3-21-pm/ |archive-date=17 July 2011}}

http://www.miamiherald.com/2011/10/21/2465881/following-complaints-from-gulf.html{{dead link|date=November 2011}}

{{cite news |newspaper=Huffington Post |agency=Associated Press |title=BP Class-Action Settlement Exceeds $1 Billion in Payments Over Gulf Oil Spill |first=Michael |last=Kunzelman |url=http://www.huffingtonpost.com/2013/01/10/bp-class-action-settlements-gulf-oil-spill_n_2445543.html |date=10 January 2013 |access-date=22 January 2013}}

{{cite news |work=Bloomberg Businessweek |agency=Associated Press |title=Judge hears details of Gulf oil spill settlement |first=Michael |last=Kunzelman |url=http://www.businessweek.com/ap/2012-04/D9UC9G982.htm |archive-url=https://web.archive.org/web/20130605064752/http://www.businessweek.com/ap/2012-04/D9UC9G982.htm |url-status=dead |archive-date=5 June 2013 |date=25 April 2012 |access-date=22 January 2013}}

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{{cite report |url=http://media.nola.com/2010_gulf_oil_spill/other/BDO%20Executive%20Summary.pdf |title=Independent Evaluation of the Gulf Coast Claims Facility. Executive Summary |publisher=BDO Consulting |date=19 April 2012 |access-date=22 January 2013 |archive-url=https://web.archive.org/web/20130606072228/http://media.nola.com/2010_gulf_oil_spill/other/BDO%20Executive%20Summary.pdf |archive-date=6 June 2013 |url-status=dead }}

{{cite news |url=http://usatoday30.usatoday.com/money/economy/story/2012-04-19/gulf-oil-spill-claims/54422074/1 |title=Gulf residents to get extra $64M for 2010 oil spill claims |work=USA Today |date=19 April 2012 |access-date=1 June 2012}}

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{{Cite news |author=Klaus, Krista |date=31 May 2010 |url=http://www2.tbo.com/news/oil-spill/2010/may/31/memorial-day-protest-bp-held-clearwater-station-ar-38905/ |title=Memorial Day protest of BP held at Clearwater station |publisher=WFLA-TV, News Channel 8, Tampa |access-date=2 June 2010}}

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{{cite web |url=http://www.neworleans.com/news/local-news/404880.html |title=More than a thousand people attend rally against BP and the government |publisher=WGNO TV, New Orleans |date=30 May 2010 |access-date=3 July 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100706120409/http://www.neworleans.com/news/local-news/404880.html |archive-date=6 July 2010}}

{{Cite news |last=Weber |first=Harry |agency=Associated Press |date=29 June 2010 |url=https://www.foxnews.com/us/apnewsbreak-trade-group-says-bp-to-give-cash-to-gas-stations-due-to-lost-sales-from-boycotts |title=APNewsBreak: Trade group says BP to give cash to gas stations due to lost sales from boycotts |publisher=Fox News |access-date=30 August 2019}}

{{cite press release |last=Palomo |first=J. |title=API response to commission report: "We've made progress to improve safety" |url=http://www.api.org/news-and-media/news/newsitems/2011/jan-2011/api-response-to-commission-report.aspx |access-date=13 February 2011 |publisher=American Petroleum Institute}}

{{cite news |last=Geman |first=B |title=Oil spill commission, lobbying group at odds over industry's credibility |url=https://thehill.com/policy/energy-environment/79743-oil-spill-commission-lobbying-group-at-odds-over-industrys-credibility/ |access-date=13 February 2011 |newspaper=The Hill}}

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{{cite news |first=David |last=Teather |url=https://www.theguardian.com/business/2010/jul/14/british-companies-reputation-threat-us |title=British companies' reputation in the US is under threat, warns Washington overseas investment group |newspaper=The Guardian |date=14 July 2010 |access-date=16 July 2010 |location=London}}

{{cite news |first=Rowena |last=Mason |url=https://www.telegraph.co.uk/finance/newsbysector/energy/oilandgas/7883303/UK-firms-suffer-after-BP-oil-spill.html |archive-url=https://ghostarchive.org/archive/20220111/https://www.telegraph.co.uk/finance/newsbysector/energy/oilandgas/7883303/UK-firms-suffer-after-BP-oil-spill.html |archive-date=11 January 2022 |url-access=subscription |url-status=live |title=UK firms suffer after BP oil spill |newspaper=The Daily Telegraph |access-date=19 July 2010 |date=10 July 2010 |location=London}}{{cbignore}}

{{cite news |url=https://www.telegraph.co.uk/news/worldnews/barackobama/7815713/Barack-Obamas-attacks-on-BP-hurting-British-pensioners.html |archive-url=https://ghostarchive.org/archive/20220111/https://www.telegraph.co.uk/news/worldnews/barackobama/7815713/Barack-Obamas-attacks-on-BP-hurting-British-pensioners.html |archive-date=11 January 2022 |url-access=subscription |url-status=live |title=Barack Obama's attacks on BP hurting British pensioners |newspaper=The Daily Telegraph |date=9 June 2010 |access-date=19 November 2011 |location=London |first1=Louise |last1=Armitstead |first2=Myra |last2=Butterworth}}{{cbignore}}

{{Cite news |url=https://www.theguardian.com/business/2010/may/13/bp-boss-admits-mistakes-gulf-oil-spill |title=BP Boss Admits Job on the Line over Gulf oil spill |work=The Guardian |location=London |date=13 May 2010 |access-date=5 June 2010 |first=Tim |last=Webb}}

{{Cite news |url=https://www.nytimes.com/2010/06/04/us/04image.html |title=Another Torrent BP Works to Stem: Its C.E.O. |last1=Mouawad |first1=Jad |last2=Krauss |first2=Clifford |newspaper=The New York Times |date=3 June 2010 |access-date=5 June 2010}}

{{cite video |url=https://www.nbcnews.com/id/wbna37588890 |title=BP downplays government claim on oil plumes |format=Flash video |publisher=MSNBC |date=9 June 2010 |access-date=10 June 2010 |time=3:42}}

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{{Cite news |last=Morgan |first=Gareth |title=BP buys 'oil spill' sponsored links for search engines |url=https://www.newscientist.com/blogs/shortsharpscience/2010/06/bp-turns-to-google-ads-to-save.html |access-date=13 June 2010 |newspaper=New Scientist |date=7 June 2010}}

{{cite news |first1=Terry |last1=Macalister |first2=Richard |last2=Wray |url=https://www.theguardian.com/business/2010/jul/26/tony-hayward-to-quit-bp |title=Tony Hayward to quit BP |newspaper=The Guardian |date=26 July 2010 |access-date=18 September 2010 |location=London}}

{{cite news |first=Terry |last=Macalister |url=https://www.theguardian.com/business/2010/jul/25/bob-dudley-profile-bp-ceo |title=Bob Dudley: Profile of the new BP chief executive |newspaper=The Guardian |date=25 July 2010 |access-date=18 September 2010 |location=London}}

{{cite press release |url=https://2009-2017.state.gov/r/pa/prs/ps/2010/06/143771.htm |publisher=United States Department of State |title=Deepwater Horizon Oil Spill: International Offers of Assistance |date=29 June 2010 |access-date=19 January 2013}}

{{Cite news |last=Rogin |first=Josh |title=U.S. not accepting foreign help on oil spill |url=http://thecable.foreignpolicy.com/posts/2010/05/06/us_not_accepting_foreign_help_on_oil_spill |access-date=12 June 2010 |newspaper=Foreign Policy |date=6 May 2010}}

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{{cite news |title=Obama oil spill commission's final report blames disaster on cost-cutting by BP and partners |url=https://www.telegraph.co.uk/finance/newsbysector/energy/oilandgas/8242557/Obama-oil-spill-commissions-final-report-blames-disaster-on-cost-cutting-by-BP-and-partners.html |access-date=6 January 2011 |newspaper=The Telegraph |date=5 January 2011 |agency=Reuters |location=London}}

{{cite web |title=Deep Water: The Gulf Oil Disaster and the Future of Offshore Drilling |url=https://s3.amazonaws.com/pdf_final/DEEPWATER_ReporttothePresident_FINAL.pdf |author=National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling |publisher=US Government |date=January 2011 |access-date=12 January 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110315193621/https://s3.amazonaws.com/pdf_final/DEEPWATER_ReporttothePresident_FINAL.pdf |archive-date=15 March 2011 }}

{{cite news |title=BP and firms made risky decisions before spill: report |url=https://www.reuters.com/article/us-oilspill-bp-causes-idUSTRE7045SX20110105 |first=Ayesha |last=Rascoe |access-date=19 January 2013 |work=Reuters |date=5 January 2011}}

{{cite news |last=Broder |first=John M. |title=Blunders Abounded Before Gulf Spill, Panel Says |url=https://www.nytimes.com/2011/01/06/science/earth/06spill.html |access-date=6 January 2011 |newspaper=The New York Times |date=5 January 2011}}

{{cite news |last=Mufson |first=Steven |title=BP, Transocean, Halliburton blamed by presidential Gulf oil spill commission |url=https://www.washingtonpost.com/wp-dyn/content/article/2011/01/05/AR2011010504631.html |access-date=6 January 2011 |newspaper=The Washington Post |date=5 January 2011}}

{{cite news |title=Panel: Without changes in oil industry and government, BP-like spill could happen again |url=http://www.chicagotribune.com/sns-bc-us-gulfoilspill,0,7248032.story |archive-url=https://web.archive.org/web/20110920151128/http://www.chicagotribune.com/sns-bc-us-gulfoilspill%2C0%2C7248032.story |url-status=dead |archive-date=20 September 2011 |access-date=26 February 2011 |newspaper=Chicago Tribune |date=5 January 2011 |last1=Cappiello |first1=Dina |last2=Weber |first2=Harry R. }}

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{{cite news |title=BP, Transocean Lawsuits Surge as Oil Spill Spreads in Gulf |date=1 May 2010 |agency=Bloomberg |url=https://www.bloomberg.com/news/2010-04-30/bp-transocean-face-at-least-23-lawsuits-over-gulf-rig-blast-crude-spill.html |access-date=1 May 2010}}

{{cite news |url=http://www.computerworlduk.com/news/it-business/3275978/bp-24bn-lawsuits-claim-contractors-failed-to-use-modelling-software-properly/ |title=BP £24bn lawsuits claim contractors failed to use modelling software properly |publisher=Computerworld UK |author=Leo King |date=21 April 2011 |access-date=26 April 2010}}

{{cite news |title=Accord Reached Settling Lawsuit Over BP Oil Spill |first1=John |last1=Schwartz |date=3 March 2012 |newspaper=The New York Times |url=https://www.nytimes.com/2012/03/03/us/accord-reached-settling-lawsuit-over-bp-oil-spill.html |access-date=20 January 2013}}

{{cite news |title=US points to 'gross negligence' by BP |date=5 September 2012 |publisher=Al Jazeera |url=http://www.aljazeera.com/news/americas/2012/09/2012959561858341.html |access-date=20 January 2013}}

{{cite news |first=Richard |last=Thompson |newspaper=The Times-Picayune |url=http://www.nola.com/business/index.ssf/2013/01/federal_judge_approves_bp_gulf.html |date=11 January 2013 |title=Federal judge approves BP Gulf oil spill medical settlement |access-date=14 February 2013}}

[https://edition.cnn.com/2012/03/02/business/bp-oil-spill-trial-agreement/ "BP, plaintiffs reach billion dollar deal in Gulf oil spill"] CNN, 3 March 2012

{{cite news |title=BP Will Plead Guilty and Pay Over $4 Billion |first1=Clifford |last1=Krauss |first2=John |last2=Schwartz |date=15 November 2012 |newspaper=The New York Times |url=https://www.nytimes.com/2012/11/16/business/global/16iht-bp16.html |access-date=3 February 2013}}

{{cite news |title=BP pleads guilty to manslaughter in 2010 gulf oil spill |first1=Michael |last1=Muskal |date=29 January 2013 |newspaper=Los Angeles Times |url=http://www.latimes.com/news/nation/nationnow/la-na-nn-bp-pleads-guilty-to-manslaughter-in-2010-gulf-oil-spill-20130129,0,2609286.story |access-date=3 February 2013}}

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{{cite web |url=https://www.justice.gov/opa/pr/2013/January/13-ag-004.html |title=Transocean Agrees to Plead Guilty to Environmental Crime and Enter Civil Settlement to Resolve U.S. Clean Water Act Penalty Claims from Deepwater Horizon Incident |publisher=Department of Justice Office of Public Affairs |date=3 January 2013 |access-date=11 January 2013}}

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{{cite press release |url=https://www.justice.gov/ag/speeches/2010/ag-speech-100601.html |title=Attorney General Eric Holder on Gulf Oil Spill |publisher=United States Department of Justice |date=1 June 2010 |access-date=3 February 2013}}

{{cite news |url=http://www.upstreamonline.com/live/article221198.ece |title=Anadarko and Mitsui executives set to testify |newspaper=Upstream Online |publisher=NHST Media Group |date=9 July 2010 |access-date=10 July 2010}}

{{cite news |url=http://news.bbc.co.uk/2/hi/americas/8679090.stm |title=Deepwater Horizon blowout preventer 'faulty' – Congress |date=13 May 2010 |work=BBC News |access-date=21 June 2010}}

{{cite press release |url=http://www.dnv.com/press_area/press_releases/2011/dnvreportondeepwaterhorizonbopconcluded.asp |archive-url=https://archive.today/20130121143502/http://www.dnv.com/press_area/press_releases/2011/dnvreportondeepwaterhorizonbopconcluded.asp |url-status=dead |archive-date=21 January 2013 |title=DNV report on Deepwater Horizon BOP concluded |date=23 March 2011 |access-date=3 February 2013}}

{{cite news |url=http://www.upstreamonline.com/hardcopy/news/article1315668.ece |first=Anthony |last=Guegel |title=US court accepts BP's Macondo guilty plea |newspaper=Upstream Online |publisher=NHST Media Group |date=31 January 2013 |access-date=3 February 2013 |url-access=subscription }}

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{{cite journal |title=Dispersed Oil Disrupts Microbial Pathways in Pelagic Food Webs |first1=Alice C. |last1=Ortmann |first2=Jennifer |last2=Anders |first3=Naomi |last3=Shelton |first4=Limin |last4=Gong |first5=Anthony G. |last5=Moss |first6=Robert H. |last6=Condon |journal=PLOS ONE |date=July 2012 |volume=7 |issue=7 |doi=10.1371/journal.pone.0042548 |pmid=22860136 |id=e42548 |pages=e42548 |bibcode=2012PLoSO...742548O |pmc=3409195|doi-access=free }}

{{cite web |url=http://www.nola.com/news/gulf-oil-spill/index.ssf/2011/09/tropical_storm_lee_surge_revea.html |title=Tropical Storm Lee surge reveals tar mats on Fourchon Beach |publisher=NOLA}}

{{cite web |url=http://www.wdsu.com/weather/hurricanes/Discovery-of-tar-mat-prompts-Gulf-closure/-/12848220/16480956/-/aonomq/-/index.html |title=Discovery of 'tar mat' prompts Gulf closure |publisher=WDSU |url-status=dead |archive-url=https://web.archive.org/web/20130616003233/http://www.wdsu.com/weather/hurricanes/Discovery-of-tar-mat-prompts-Gulf-closure/-/12848220/16480956/-/aonomq/-/index.html |archive-date=16 June 2013 }}

{{cite web |url=http://www.nola.com/news/gulf-oil-spill/index.ssf/2012/10/about_565000_lbs_of_oiled_mate.html |title=About 565,000 pounds of oiled material from Deepwater Horizon stirred up by Hurricane Isaac |publisher=NOLA}}

{{cite news |agency=Associated Press |title=BP costs for oil spill response pass $3 billion |last=Breen |first=Tom |date=5 July 2010 |access-date=5 July 2010 |url=http://www.washingtontimes.com/news/2010/jul/5/bp-costs-oil-spill-response-pass-3-billion/}}

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{{cite news |url=http://sero.nmfs.noaa.gov/bulletins/pdfs/2010/FB10-055_BP_Oil_Spill_Closure_062110.pdf |title=FB10-055: BP Oil Spill: NOAA Modifies Commercial and Recreational Fishing Closure in the Oil-Affected Portions of the Gulf of Mexico |date=21 June 2010 |publisher=NOAA, National Marine Fisheries Service, Southeast Regional Office, Southeast Fishery Bulletin |access-date=22 June 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100705094139/http://sero.nmfs.noaa.gov/bulletins/pdfs/2010/FB10-055_BP_Oil_Spill_Closure_062110.pdf |archive-date=5 July 2010}}

{{cite news |url=http://sero.nmfs.noaa.gov/ClosureSizeandPercentCoverage.htm |title=Deepwater Horizon/BP Oil Spill: Size and Percent Coverage of Fishing Area Closures Due to BP Oil Spill |date=21 June 2010 |publisher=NOAA, National Marine Fisheries Service, Southeast Regional Office |access-date=22 June 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100618133909/http://sero.nmfs.noaa.gov/ClosureSizeandPercentCoverage.htm |archive-date=18 June 2010}}

{{cite news |url=http://www.time.com/time/health/article/0,8599,1986323,00.html |archive-url=https://web.archive.org/web/20100503045805/http://www.time.com/time/health/article/0,8599,1986323,00.html |url-status=dead |archive-date=3 May 2010 |title=Bryan Walsh. (1 May 2010). Gulf of Mexico Oil Spill: No End in Sight for Eco-Disaster. Time. Retrieved 1 May 2010 |work=Yahoo! News |access-date=3 May 2010 |date=1 May 2010}}

{{cite news |url=http://www.nivac.info/?p=824 |title=Big price tag for recovery of Gulf Coast |last=Proctor |first=Carleton |work=Pensacola News Journal |date=1 August 2010 |access-date=1 August 2010 |url-status=dead |archive-url=https://web.archive.org/web/20110427044922/http://www.nivac.info/?p=824 |archive-date=27 April 2011}}

{{cite news |url=http://www.ustravel.org/sites/default/files/page/2009/11/Gulf_Oil_Spill_Analysis_Oxford_Economics_710.pdf |title=Potential Impact of the Gulf Oil Spill on Tourism |work=Oxford Economics |date=21 July 2010 |access-date=1 August 2010 |url-status=dead |archive-url=https://web.archive.org/web/20120507030043/http://www.ustravel.org/sites/default/files/page/2009/11/Gulf_Oil_Spill_Analysis_Oxford_Economics_710.pdf |archive-date=7 May 2012 }}

{{cite press release |url=http://www.nps.gov/applications/digest/headline.cfm?type=Incidents&id=5117 |title=Response To Oil on Gulf Island Beaches Continues |publisher=National Park Service |date=4 June 2010 |access-date=13 June 2010}}

{{cite web |url=http://www.nola.com/news/gulf-oil-spill/index.ssf/2010/10/massive_stretches_of_weathered.html |title=Massive stretches of weathered oil spotted in Gulf of Mexico |date=23 October 2010 |work=The Times-Picayune |publisher=Nola.com |access-date=23 October 2010}}

{{cite journal |author1=Adcroft, A. |author2=R. Hallberg |author3=J. P. Dunne |author4=B. L. Samuels |author5=J. A. Galt |author6=C. H. Barker |author7=D. Payton |name-list-style=amp |year=2010 |title=Simulations of underwater plumes of dissolved oil in the Gulf of Mexico |journal=Geophysical Research Letters |volume=37 |issue=18 |page=L18605 |doi=10.1029/2010GL044689 |url=http://www.gfdl.noaa.gov/cms-filesystem-action?file=user_files/aja/2010gl044689-combined.pdf |bibcode=2010GeoRL..3718605A|doi-access=free }}

{{Cite report |url=https://fas.org/sgp/crs/misc/R42942.pdf |title=Deepwater Horizon Oil Spill: Recent Activities and Ongoing Developments |first1=Jonathan L. |last1=Ramseur |first2=Curry L. |last2=Hagerty |publisher=Congressional Research Service |date=31 January 2013 |access-date=13 February 2013 |series=CRS Report for Congress |id=R42942}}

{{cite journal |title=Dynamic autoinoculation and the microbial ecology of a deep water hydrocarbon irruption |author=Valentine, David L. |journal=Proceedings of the National Academy of Sciences of the United States of America |url=http://www.netl.doe.gov/technologies/oil-gas/publications/Hydrates/2012reports/nt0005667-nas-valentine.pdf |year=2011 |volume=109 |issue=50 |doi=10.1073/pnas.1108820109 |pages=20286–20291 |access-date=13 February 2013 |bibcode=2012PNAS..10920286V |display-authors=etal |pmid=22233808 |pmc=3528554|doi-access=free }}

{{cite news |url=https://www.cbsnews.com/news/bp-finishes-latest-search-for-gulf-oil-leaks/ |title=BP finishes latest search for Gulf oil leaks |date=17 December 2012 |work=CBS News |first=Sharyl |last=Attkisson |access-date=13 February 2013}}

{{cite news |url=https://www.cbsnews.com/news/oil-may-be-seeping-from-deepwater-horizon-site/ |title=Oil may be seeping from Deepwater Horizon site |date=13 December 2012 |work=CBS News |first=Sharyl |last=Attkisson |access-date=13 February 2013}}

{{cite news |url=http://www.nola.com/environment/index.ssf/2012/12/coast_guard_releases_videos_of.html |title=BP Macondo well, Deepwater Horizon wreckage videos released by Coast Guard |first=Mark |last=Schleifstein |date=28 December 2012 |work=The Times-Picayune |access-date=13 February 2013}}

{{cite news |url=http://www.nola.com/news/gulf-oil-spill/index.ssf/2012/10/plan_to_cap_and_plug_containme.html |title=Source of new oil sheen near Deepwater Horizon site has been plugged, BP says |date=25 October 2012 |first=Mark |last=Schleifstein |work=The Times-Picayune |access-date=13 February 2013}}

{{cite news |url=https://www.cbsnews.com/news/unknown-substance-leaking-from-deepwater-horizon-site/ |title=Unknown substance leaking from Deepwater Horizon site |date=31 January 2013 |work=CBS News |first=Sharyl |last=Attkisson |access-date=18 August 2024 |archive-url=https://web.archive.org/web/20240818152115/https://www.cbsnews.com/news/unknown-substance-leaking-from-deepwater-horizon-site/ |archive-date=2024-08-18 }}

{{cite web |url=http://www.aljazeera.com/indepth/features/2011/09/2011912175412109550.html |title=No end in sight for oil in the Gulf of Mexico |first=Dahr |last=Jamail |publisher=Al Jazeera}}

{{cite news |url=http://oilprice.com/Latest-Energy-News/World-News/The-Cover-Up-E-mails-Show-BP-Lied-to-Authorities-on-The-Deepwater-Horizon-Spill.html |title=The Cover Up: E-mails Show BP Lied to Authorities on The Deepwater Horizon Spill |date=10 December 2012 |publisher=OilPrice.com |first=Charles Kennedy |last=Kennedy |access-date=14 February 2013}}

{{cite news |url=https://www.washingtonpost.com/wp-dyn/content/article/2010/05/30/AR2010053002195_pf.html |title=Oil could spew until August, officials say |date=31 May 2010 |first1=Steven |last1=Mufson |first2=David S. |last2=Hilzenrath |newspaper=The Washington Post |access-date=14 February 2013}}

{{cite video |url=http://www.nbcnews.com/video/nightly-news/42220680 |title=Fresh oil hits Louisiana coast |date=22 March 2011 |publisher=MSNBC |access-date=14 February 2013}}

{{cite web |url=http://www.nola.com/news/gulf-oil-spill/index.ssf/2011/09/coast_guard_says_oil_sheen_16.html |title=Coast Guard says oil sheen 16 miles northeast of BP well too dispersed to be recovered |publisher=NOLA}}

{{cite web |url=http://www.nola.com/news/gulf-oil-spill/index.ssf/2012/10/sheen_at_deepwater_horizon_dis.html |title=Sheen at Deepwater Horizon disaster site is BP oil, Coast Guard says |publisher=NOLA}}

{{cite web |url=http://www.nola.com/news/gulf-oil-spill/index.ssf/2013/01/bp_deepwater_horizon_spill_sci.html |title=BP Deepwater Horizon spill: Scientists say seafood safe, but health effects being measured |publisher=NOLA}}

{{cite news |url=http://www.businessweek.com/news/2012-10-11/coast-guard-says-sheen-near-macondo-site-matches-2010-bp-spill |title=Coast Guard Says Sheen Near Macondo Matches 2010 BP Spill |work=Bloomberg Businessweek |date=11 October 2012 |access-date=16 February 2013 |url-status=dead |archive-url=https://web.archive.org/web/20121016084502/http://www.businessweek.com/news/2012-10-11/coast-guard-says-sheen-near-macondo-site-matches-2010-bp-spill |archive-date=16 October 2012 }}

{{cite web |url=http://www.onwingsofcare.org/protection-a-preservation/gulf-of-mexico-oil-spill-2010/gulf-2013/359-20130127-calm-seas-troubled-waters.html |title=20130127-Calm seas but troubled waters |publisher=Onwingsofcare.org |access-date=16 February 2013 |url-status=dead |archive-url=https://web.archive.org/web/20130204195851/http://onwingsofcare.org/protection-a-preservation/gulf-of-mexico-oil-spill-2010/gulf-2013/359-20130127-calm-seas-troubled-waters.html |archive-date=4 February 2013 }}

{{cite news |url=https://www.theguardian.com/theguardian/2010/jun/19/naomi-klein-gulf-oil-spill |location=London |work=The Guardian |first=Naomi |last=Klein |title=BP oil spill Deepwater Horizon, BP (Business), Oil spills (Environment), Oil and gas companies (Business), Oil (environment), Oil (business), US news, Conservation (Environment), Pollution (Environment), World news, Environment, Business |date=19 June 2010}}

{{Cite web|url=http://www.mnn.com/earth-matters/wilderness-resources/stories/bp-spill-response-plans-severely-flawed|archiveurl=https://web.archive.org/web/20130517012006/http://www.mnn.com/earth-matters/wilderness-resources/stories/bp-spill-response-plans-severely-flawed|url-status=dead|title=BP spill response plans severely flawed | MNN – Mother Nature Network|archivedate=17 May 2013}}

[http://www.scientificamerican.com/article.cfm?id=oil-spill-may-change-shape-of-gulf-coast-louisiana "Slosh and Berm: Building Sand Barriers off Louisiana's Coast to Hold Back Oil Spill Has Low Probability of Success"] David Biello in Scientific American 8 June 2010. Retrieved 19 July 2010

{{cite magazine |url=http://www.popularmechanics.com/technology/engineering/infrastructure/sand-berm-oil-cleanup-bp-spill |title=Are the Sand Berms Really Stopping Oil? |date=22 July 2010 |magazine=Popular Mechanics}}

[http://www.2theadvocate.com/news/98183534.html "Sand berms partially political"] article by Amy Wold in The Advocate 11 July 2010. Retrieved 19 July 2010 {{webarchive |url=https://web.archive.org/web/20100712221629/http://www.2theadvocate.com/news/98183534.html |date=12 July 2010 }}

{{Cite web|url=http://www.wwltv.com/news/gulf-oil-spill/EPA-slams-Jindals-sand-berm-plan-102590289.html|archiveurl=https://web.archive.org/web/20140726225738/http://www.wwltv.com/news/gulf-oil-spill/EPA-slams-Jindals-sand-berm-plan-102590289.html|url-status=dead|title=EPA slams Jindal's sand berm plan | wwltv.com New Orleans|archivedate=26 July 2014}}

{{cite conference |url=http://www.energyclaims.net/assets/Macondo-well-PC&R.pdf |title=BP Macondo Well Incident. U.S. Gulf of Mexico. Pollution Containment and Remediation Efforts |first=J. Steven |last=Butler |conference=Lillehammer Energy Claims Conference |publisher=BDO Consulting |date=3 March 2011 |access-date=17 February 2013 |url-status=dead |archive-url=https://web.archive.org/web/20140821001051/http://www.energyclaims.net/assets/Macondo-well-PC%26R.pdf |archive-date=21 August 2014 }}

{{cite report |url=http://media.mcclatchydc.com/smedia/2010/10/06/18/_Staff_Report_No._4.source.prod_affiliate.91.pdf |title=The Use of Surface and Subsea Dispersants During the BP Deepwater Horizon Oil Spill. Draft |publisher=National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling |date=6 October 2010 |access-date=17 February 2013 |archive-date=24 February 2021 |archive-url=https://web.archive.org/web/20210224055811/http://media.mcclatchydc.com/smedia/2010/10/06/18/_Staff_Report_No._4.source.prod_affiliate.91.pdf |url-status=dead }}

{{cite magazine |url=http://news.nationalgeographic.com/news/energy/2012/03/120322-gulf-oil-spill-tar-balls-wash-up-on-beaches/ |archive-url=https://web.archive.org/web/20120322231227/http://news.nationalgeographic.com/news/energy/2012/03/120322-gulf-oil-spill-tar-balls-wash-up-on-beaches/ |url-status=dead |archive-date=22 March 2012 |title=Tar Balls from BP Oil Spill Wash Up on Gulf Beaches |date=22 March 2012 |magazine=National Geographic}}

{{cite web |url=http://blog.al.com/wire/2010/11/bp_oil_burn_health_risk.html |title=Burning off oil from BP spill in Gulf posed little health risk, feds say in new report (video) |date=12 November 2010 }}

{{cite news |first1=Margaret |last1=Cronin Fisk |first2=Allen Jr. |last2=Johnson |title=BP Managers Plead Not Guilty to Deepwater Horizon Criminal Charges |date=28 November 2012 |url=https://www.bloomberg.com/news/2012-11-28/three-bp-managers-appear-in-court-to-answer-spill-charges-1-.html |agency=Bloomberg |access-date=19 February 2013}}

{{cite news |last=Plume |first=Karl |url=http://uk.reuters.com/article/uk-bp-spill-offer-idUKBRE91M0AG20130223 |archive-url=https://web.archive.org/web/20160130231924/http://uk.reuters.com/article/uk-bp-spill-offer-idUKBRE91M0AG20130223 |url-status=dead |archive-date=30 January 2016 |title=U.S. Justice, Gulf states crafting BP spill settlement |work=Reuters |date=23 February 2013 |access-date=24 February 2013}}

{{cite report |title=Deepwater Horizon Marine Casualty Investigation Report |date=17 August 2011 |url=http://www.register-iri.com/forms/upload/Republic_of_the_Marshall_Islands_DEEPWATER_HORIZON_Marine_Casualty_Investigation_Report-Low_Resolution.pdf |publisher=Office of the Maritime Administrator |access-date=25 February 2013}}

{{cite news |url=http://www.upstreamonline.com/live/article1318253.ece |title=Macondo trial gets under way |newspaper=Upstream Online |publisher=NHST Media Group |first1=Kathrine |last1=Schmidt |date=25 February 2013 |access-date=26 February 2013}}

{{cite news |url=http://www.upstreamonline.com/live/article1318281.ece |title=Blame game kicks off in Macondo trial |newspaper=Upstream Online |publisher=NHST Media Group |date=26 February 2013 |access-date=26 February 2013}}

{{cite news |url=http://www.businessweek.com/news/2013-02-25/bp-oil-spill-errors-trial-begins-in-new-orleans-court |archive-url=https://web.archive.org/web/20130228191345/http://www.businessweek.com/news/2013-02-25/bp-oil-spill-errors-trial-begins-in-new-orleans-court |url-status=dead |archive-date=28 February 2013 |title=BP, Transocean Accused of 'Reckless' Actions in Spill |first1=Jef |last1=Feeley |first2=Allen Jr. |last2=Johnson |agency=Bloomberg |date=26 February 2013 |access-date=26 February 2013}}

{{cite news |url=https://pqasb.pqarchiver.com/pnj/access/2468189491.html?FMT=ABS&date=Sep+26%2C+2011 |work=Pensacola News Journal |first=Kimberly |last=Blair |title=DISPERANTS: Chemicals BP used may cause cancer |date=26 September 2011 |url-status=dead |archive-url=https://web.archive.org/web/20130728141637/http://pqasb.pqarchiver.com/pnj/access/2468189491.html?FMT=ABS&date=Sep+26%2C+2011 |archive-date=28 July 2013 }}

{{cite news |first=Erika |last=Blumenfeld |url=http://www.aljazeera.com/indepth/interactive/2011/05/2011512141926468292.html |title=Exposing the human side of BP's oil spill |publisher=Al Jazeera |date=17 May 2011 |access-date=3 March 2013}}

{{cite news |first=Dahr |last=Jamail |url=http://www.aljazeera.com/indepth/features/2011/03/201138152955897442.html |title=Gulf spill sickness wrecking lives |publisher=Al Jazeera |date=9 March 2011 |access-date=27 March 2013}}

{{cite news |first=Tom |last=Fowler |title=First Criminal Charges Filed in Deepwater Horizon Accident |date=4 April 2012 |url=https://blogs.wsj.com/law/2012/04/24/first-criminal-charges-filed-in-deepwater-horizon-accident/ |newspaper=The Wall Street Journal |access-date=19 February 2013}}

{{cite news |title=BP Oil Spill Cleanup Workers Getting Sick, Exxon Valdez Survivor Warns of Long-Term Health Effects |date=7 July 2010 |url=http://www.democracynow.org/2010/7/7/bp_oil_spill_cleanup_workers_getting |work=Democracy Now! |access-date=1 June 2013}}

{{cite report |url=https://homeport.uscg.mil/Lists/Content/Attachments/119/DeepwaterHorizonReport%20-31Aug2011%20-CD_2.pdf |title=On Scene Coordinator Report on Deepwater Horizon Oil Spill |date=September 2011 |access-date=10 August 2018 | archive-url= https://web.archive.org/web/20120915094912/http://www.uscg.mil/foia/docs/dwh/fosc_dwh_report.pdf |archive-date= 15 September 2012 |url-status= live}}

}}

• {{cite magazine |last=Khatchadourian |first=Raffi |date=11 March 2011 |title=A Reporter at Large: The Gulf war |magazine=The New Yorker |volume=87 |issue=4 |pages=36–59 |url=http://www.newyorker.com/reporting/2011/03/14/110314fa_fact_khatchadourian |access-date=15 December 2013|ref=none}}
• {{cite journal |last1=Liu |first1=Yonggang |last2=MacFadyen |first2=Amy |last3=Ji |first3=Zhen-Gang |last4=Weisberg |first4=Robert H. |date=2011 |title=Monitoring and Modeling the Deepwater Horizon Oil Spill: A Record-Breaking Enterprise |journal=Geophysical Monograph Series |series=Washington DC American Geophysical Union Geophysical Monograph Series |volume=195 |url=http://www.agu.org/books/gm/v195/ |doi=10.1029/GM195 |bibcode=2011GMS...195.....L |isbn=978-0-87590-485-6 |ref=none |access-date=6 November 2014 |archive-date=6 November 2014 |archive-url=https://web.archive.org/web/20141106110617/http://www.agu.org/books/gm/v195/ |url-status=dead }}
• {{cite journal |last=Marghany |first=Maged |date=15 December 2014 |title=Utilization of a genetic algorithm for the automatic detection of oil spill from RADARSAT-2 SAR satellite data |journal=Marine Pollution Bulletin |volume=89 |issue=1–2 |pages=20–29 |doi=10.1016/j.marpolbul.2014.10.041 |pmid=25455367 |bibcode=2014MarPB..89...20M |ref=none}}
• {{cite journal |author=Erik Stokstad |url=https://www.science.org/doi/abs/10.1126/science.339.6120.636?sid=afdc38fe-36d8-4607-b42e-d0ee805ba72a |title=BP Research Dollars Yield Signs of Cautious Hope |journal=Science |volume=339 |issue=6120 |pages=636–637 |date=8 February 2013 |access-date=25 February 2013 |doi=10.1126/science.339.6120.636 |pmid=23393236|bibcode = 2013Sci...339..636S |ref=none}}
• {{cite web |author1=Daniel Kaniewski |author2=James Carafano |url=http://www.heritage.org/research/reports/2010/08/critical-lessons-from-the-federal-response-to-the-gulf-oil-spill |archive-url=https://web.archive.org/web/20100812021333/http://www.heritage.org/Research/Reports/2010/08/Critical-Lessons-from-the-Federal-Response-to-the-Gulf-Oil-Spill |url-status=unfit |archive-date=12 August 2010 |title=Critical Lessons from the Federal Response to the Gulf Oil Spill |publisher=The Heritage Foundation |date=9 August 2010 |access-date=31 July 2015|author1-link=Daniel Kaniewski |ref=none}}

{{Commons category|Deepwater Horizon oil spill}}

• {{webarchive|url=https://web.archive.org/web/*/https://www.whitehouse.gov/issues/energy-and-environment/deepwater-bp-oil-spill|title=Deepwater BP Oil Spill}} – at Whitehouse.gov
• [https://web.archive.org/web/20170707200242/http://deepwaterhorizon.noaa.gov/ Deepwater Horizon Incident, Gulf of Mexico] from the National Oceanic and Atmospheric Administration (NOAA)
• [http://www.restorethegulf.gov/ RestoreTheGulf.gov] official U.S. Government Web site, taking over content and functions from Deepwater Horizon Response site
• [https://web.archive.org/web/20100704120112/http://ocean.si.edu/ocean-and-you/gulf-oil-spill/ Smithsonian's Ocean Portal]
• [http://www.whoi.edu/deepwaterhorizon/ Science in a Time of Crisis: WHOI's response to the Deepwater Horizon Oil Spill] a multimedia presentation from Woods Hole Oceanographic Institution
• [http://www.nap.edu/catalog.php?record_id=13141 "Approaches for Ecosystem Services Valuation for the Gulf of Mexico After the Deepwater Horizon Oil Spill: Interim Report by the National Academy of Sciences"]
• [https://www.cdc.gov/niosh/topics/oilspillresponse/ CDC – Oil Spill Response Resources – NIOSH Workplace Safety and Health Topic]
• [https://purl.fdlp.gov/GPO/gpo35800 The Role of BP in the Deepwater Horizon Explosion and Oil Spill: Hearing before the Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce, House of Representatives, One Hundred Eleventh Congress, Second Session, June 17, 2010]

• [http://www.dep.state.fl.us/deepwaterhorizon/ Florida Department of Environmental Protection (DEP)]
• [http://www.deq.state.ms.us/MDEQ.nsf/page/Main_OilSpillLinksandPublicInformation2010?OpenDocument Mississippi DEQ] {{Webarchive|url=https://web.archive.org/web/20100620074732/http://www.deq.state.ms.us/MDEQ.nsf/page/Main_OilSpillLinksandPublicInformation2010?OpenDocument |date=20 June 2010 }}
• [http://oilspill.fsu.edu/ State of Florida Oil Spill Academic Task Force]

• [http://topics.nytimes.com/top/reference/timestopics/subjects/o/oil_spills/index.html Full coverage] from The New York Times
• [http://www.nola.com/news/gulf-oil-spill/ Full coverage] from The Times-Picayune (New Orleans)
• [http://www.scientificamerican.com/report/bp-gulf-oil-spill-5-years-later/ ScientificAmerican.com 2015-04020 BP Gulf Oil Spill: 5 Years Later Indepth Report]
• [http://cnso.nova.edu/news/articles/-deepwater-horizon-oil-spill-caused-lasting-damage,-report-says.html Deepwater Horizon oil spill caused lasting damage, report says] {{Webarchive|url=https://web.archive.org/web/20150912025233/http://cnso.nova.edu/news/articles/-deepwater-horizon-oil-spill-caused-lasting-damage,-report-says.html |date=12 September 2015 }}
• [https://www.npr.org/tags/127868273/bp-oil-spill BP Oil Spill], NPR

• [http://oilspill.skytruth.org/ Gulf Oil Spill Tracker] interactive map and form for citizen reporting (SkyTruth.org)
• [https://www.nytimes.com/interactive/2010/05/01/us/20100501-oil-spill-tracker.html Map and Estimates of the Oil Spilled] (New York Times)
• [https://www.nytimes.com/interactive/2010/05/27/us/20100527-oil-landfall.html Where Oil Has Made Landfall] (New York Times)

• [https://web.archive.org/web/20100426123407/http://www.ireport.com/docs/DOC-435316?hpt=C2 Rig fire at Deepwater Horizon 4/21/10], video at CNN iReport
• [http://cimss.ssec.wisc.edu/goes/blog/archives/5240 GOES-13 satellite images] on the CIMSS Satellite Blog
• [https://www.youtube.com/watch?v=RngYv4SYMCY Underwater Video Examines Multiple Leak Points Causing BP Oil Spill]
• [https://www.youtube.com/watch?v=_KgFBciS_X0 The Big Fix. Documentary about the oil spill]

• [http://ocean.si.edu/gulf-oil-spill-interactive Gulf of Mexico Oil Spill Interactive: Smithsonian Ocean Portal]
• [https://www.bbc.co.uk/news/10317116 BBC News – interactive animation to the disaster and blocking efforts]
• [https://www.nytimes.com/interactive/2010/05/25/us/20100525-topkill-diagram.html New York Times] exploded view diagrams on the methods used to stop the oil spill
• [http://www.heraldtribune.com/apps/pbcs.dll/article?AID=/20120109/GRAPHICS02/120109575&template=graphics&tc=ar Graphic: Where the oil and gas went] {{Webarchive|url=https://web.archive.org/web/20140812171014/http://www.heraldtribune.com/apps/pbcs.dll/article?AID=%2F20120109%2FGRAPHICS02%2F120109575&template=graphics&tc=ar |date=12 August 2014 }}
• [https://www.youtube.com/watch?v=FCVCOWejlag CSB produced blowout animation and technical explanation of cause of disaster]

{{Deepwater}}

{{BP}}

{{DISPLAYTITLE:Deepwater Horizon oil spill}}

Category:Oil platform disasters in the United States

Category:Oil spills in the United States

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