Petrolia Formation

{{Short description|Geologic formation in Texas, United States}}

{{Infobox rockunit

| name = Petrolia Formation

| image = Wiley-Rd-ss6.jpg

| caption = Outcrops of the Petrolia Formation

| type = Formation

| age = Permian

| period = Permian

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| region = {{Flag|Texas}}

| country = {{Flag|United States}}

| coordinates =

| unitof =Wichita Group

| subunits =

| underlies =Waggoner Ranch Formation

| overlies =Nocona Formation

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}}

The Petrolia Formation is a geologic formation in Texas. It preserves fossils dating back to the Permian period.