| Petrolia Formation | |
|---|---|
| Stratigraphic range: Permian | |
 Outcrops of the Petrolia Formation | |
| Type | Formation |
| Unit of | Wichita Group |
| Underlies | Waggoner Ranch Formation |
| Overlies | Nocona Formation |
| Location | |
| Region |  Texas |
| Country |  United States |
The Petrolia Formation is a geologic formation in Texas. It preserves fossils dating back to the Permian period.