FIELDS AND POOLS · UNITED STATES
Pennsylvanian fields and pools
A regulator names each reservoir it oversees: a field in Texas, a pool in New Mexico. The name carries the formation, which is how one formation can be followed across a state line.
Wells completed in the Pennsylvanian → · The Pennsylvanian formation →
270 ON FILE · PAGE 4 OF 6
| Field or pool | State | Formation | County | Active completions | Operators | Oil, 12 mo | Gas, 12 mo | Lifetime oil | Last reported |
|---|---|---|---|---|---|---|---|---|---|
| Perrin, N. Afb (Penn. 10,362) | Texas | Penn 10 362 | Grayson | 1 | 1 | 125 | 0 | 36,795 | Aug 2026 |
| Red Tank Draw; Upper Penn (G) | New Mexico | Upper Penn | Eddy | 1 | 1 | 109 | 21,027 | 1,724 | Sep 2026 |
| Four Lakes; Upper Penn | New Mexico | Upper Penn | Lea | 2 | 1 | 102 | 0 | 1.7M | Jun 2026 |
| Shoe Bar; Upper Penn, South | New Mexico | Upper Penn | Lea | 1 | 1 | 99 | 822 | 573,295 | Sep 2026 |
| Sean Andrew (Penn.) | Texas | Penn | Dawson | 1 | 1 | 97 | 0 | 1.6M | Jul 2026 |
| Grace-Mag (Penn Cordell) | Texas | Penn Cordell | Grayson | 1 | 1 | 81 | 0 | 80,232 | Aug 2026 |
| Rio Pensaco; Upper Penn (G) | New Mexico | Upper Penn | Eddy | 1 | 1 | 76 | 61,408 | 4,046 | Sep 2026 |
| Austin; Upper Penn, Southwest | New Mexico | Upper Penn | Lea | 2 | 2 | 76 | 3,376 | 42,795 | Aug 2026 |
| WC-041 S063415L; Penn (Gas) | New Mexico | Penn | Roosevelt | 1 | 1 | 74 | 1,041 | 2,971 | Aug 2026 |
| Antelope Sink; Upper Penn (Gas) | New Mexico | Upper Penn | Eddy | 7 | 3 | 68 | 91,890 | 31,354 | Sep 2026 |
| Wildcat S222710I; Upper Penn (Gas) | New Mexico | Upper Penn | Eddy | 1 | 1 | 68 | 2,342 | 3,105 | Aug 2026 |
| Dog Canyon Draw; Upper Penn. | New Mexico | Upper Penn. | Eddy | 1 | 1 | 64 | 534 | 3,343 | Aug 2026 |
| Polar (Penn.) | Texas | Penn | Kent | 2 | 1 | 60 | 0 | 171,751 | Aug 2026 |
| Dagger Draw; Upper Penn, North | New Mexico | Upper Penn | Eddy | 15 | 6 | 44 | 16,947 | 50.9M | Oct 2026 |
| Monahans, N. (Penn.) | Texas | Penn | Winkler +1 | 1 | 1 | 42 | 271 | 18,605 | Aug 2026 |
| TV; Penn (Gas) | New Mexico | Penn | Chaves | 5 | 3 | 34 | 38,615 | 293,879 | Sep 2026 |
| Lea; Penn (Gas) | New Mexico | Penn | Lea | 8 | 5 | 33 | 72,789 | 567,773 | Sep 2026 |
| Winchester; Upper Penn (Gas) | New Mexico | Upper Penn | Eddy | 3 | 2 | 30 | 24,189 | 353,400 | Sep 2026 |
| Halley, South (Penn.) | Texas | Penn | Winkler | 1 | 1 | 28 | 1,744 | 6,371 | Aug 2026 |
| Washita Creek (Penn) | Texas | Penn | Hemphill | 2 | 1 | 27 | 173,980 | 930 | Aug 2026 |
| Cottonwood Spring; Upper Penn (Gas) | New Mexico | Upper Penn | Eddy | 2 | 1 | 25 | 1,983 | 7,282 | Aug 2026 |
| Darmer, NE. (Penn) | Texas | Penn | Winkler | 2 | 1 | 21 | 271 | 298,969 | Aug 2026 |
| Atoka; Upper Penn, West (Gas) | New Mexico | Upper Penn | Eddy | 6 | 1 | 20 | 27,489 | 10,901 | Aug 2026 |
| Wilshire (Pennsylvanian) | Texas | Pennsylvanian | Upton +1 | 3 | 2 | 19 | 27,986 | 145,732 | Aug 2026 |
| Holman Ranch, N (Penn) | Texas | Penn | Sutton | 15 | 2 | 18 | 26,854 | 13,210 | Aug 2026 |
| Atoka; Penn | New Mexico | Penn | Eddy | 9 | 6 | 16 | 32,452 | 432,762 | Aug 2026 |
| BMW, NW. (Penn Reef) | Texas | Penn Reef | Jones | 3 | 1 | 15 | 0 | 213,202 | Jun 2026 |
| Penasco Draw; Upper Penn | New Mexico | Upper Penn | Eddy | 1 | 1 | 14 | 1,943 | 592,476 | Aug 2026 |
| Red Lake; Penn (Gas) | New Mexico | Penn | Eddy | 4 | 2 | 13 | 12,337 | 176,616 | Aug 2026 |
| McMillan; Upper Penn (Gas) | New Mexico | Upper Penn | Eddy | 2 | 1 | 12 | 590 | 349,346 | Sep 2026 |
| WC Salt Draw; Upper Penn (G) | New Mexico | Upper Penn | Eddy | 2 | 2 | 7 | 13,759 | 3,841 | Sep 2026 |
| Chaveroo; Lower Penn, North (Gas) | New Mexico | Lower Penn | Roosevelt | 2 | 1 | 7 | 4,929 | 86,385 | Aug 2026 |
| King Lake (Pennsylvanian) | Texas | Pennsylvanian | Ector | 2 | 1 | 7 | 123 | 64,577 | Mar 2026 |
| Howards Creek (Penn.) | Texas | Penn | Crockett | 16 | 4 | 6 | 90,163 | 17,463 | Aug 2026 |
| Buffalo Valley; Penn (Prorated Gas) | New Mexico | Penn | Chaves | 28 | 8 | 3 | 119,239 | 755,044 | Sep 2026 |
| Fort McKavitt (Penn., Upper) | Texas | Penn Upper | Schleicher | 1 | 1 | 3 | 2,207 | 3,332 | Jul 2026 |
| Avalon; Upper Penn, North (Gas) | New Mexico | Upper Penn | Eddy | 1 | 1 | 1 | 693 | 400 | Aug 2026 |
| McKittrick Hills; Upper Penn (Gas) | New Mexico | Upper Penn | Eddy | 4 | 2 | 0 | 458,030 | 219,366 | Sep 2026 |
| Vinegarone, E. (Penn. Sand) | Texas | Penn Sand | Edwards | 45 | 1 | 0 | 451,462 | 0 | Aug 2026 |
| Frances Hill (Penn) | Texas | Penn | Edwards +1 | 27 | 5 | 0 | 199,566 | 17,525 | Aug 2026 |
| Madera Ranch (Lower Penn) | Texas | Lower Penn | Loving | 1 | 1 | 0 | 182,081 | 200 | Aug 2026 |
| Frances Hill (Penn, Lower) | Texas | Penn Lower | Edwards | 13 | 4 | 0 | 115,094 | 43,876 | Aug 2026 |
| Indian Loafer Draw; Upper Penn (Gas) | New Mexico | Upper Penn | Eddy | 9 | 1 | 0 | 62,285 | 20,546 | Sep 2026 |
| Dagger Draw; UP Penn, South (Assoc) | New Mexico | UP Penn | Eddy | 11 | 2 | 0 | 58,388 | 17.4M | Sep 2026 |
| WC Red Bluff; Upper Penn (G) | New Mexico | Upper Penn | Eddy | 2 | 1 | 0 | 57,359 | 2,470 | Sep 2026 |
| Coos (Penn Strawn) | Texas | Penn Strawn | Crockett | 4 | 1 | 0 | 54,378 | 649 | Aug 2026 |
| Ward, S. (Penn. 8430) | Texas | Penn 8430 | Ward +1 | 2 | 2 | 0 | 26,876 | 1,098 | Aug 2026 |
| Buffalo Valley; Penn, West (Gas) | New Mexico | Penn | Chaves | 1 | 1 | 0 | 17,806 | 1,724 | Aug 2026 |
| Ward, South (Penn. Lime, Up.) | Texas | Penn Lime UP | Ward | 3 | 3 | 0 | 16,549 | 49 | Aug 2026 |
| Avalon; Upper Penn (Gas) | New Mexico | Upper Penn | Eddy | 4 | 2 | 0 | 14,479 | 34,276 | Aug 2026 |
OIL IN BBL · GAS IN MCF · TWELVE MONTHS THROUGH THE STATE'S REPORTED-THROUGH MONTH
About this data
Each state regulator's field and pool registry, with the completions and the reported volumes of each. The formation is read from the name the regulator gave it and matched to one registry shared by every state; a name that gives no single formation has none. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/fields, documented in the API reference.