The Powder River Basin of northeastern Wyoming and southeastern Montana is an emerging oil play (Niobrara, Mowry, Turner) atop a legacy of coalbed-methane and conventional production.
The Powder River Basin has approximately 119,186 wells operated by 2,717 companies. Below are the largest operators by well count. Data as of 2026-09-03.
| # | Operator | Wells | Have produced |
|---|---|---|---|
| 1 | EOG Resources | 8,739 | 844 |
| 2 | Anschutz Exploration | 5,358 | 315 |
| 3 | Devon Energy Production Company | 5,072 | 1,736 |
| 4 | Lance Oil & Gas Company | 3,989 | 2,302 |
| 5 | Pennaco Energy Incorporated | 3,700 | 2,507 |
| 6 | Carbon Creek Energy | 3,373 | 3,319 |
| 7 | Wold Energy Partners | 3,186 | — |
| 8 | Anadarko Petroleum | 3,091 | 222 |
| 9 | Huber J M | 2,939 | 1,655 |
| 10 | Yates Petroleum | 2,654 | 1,558 |
| 11 | Williams Production Gulf Coast | 2,596 | 1,129 |
| 12 | Wrc Energy LLC | 2,126 | 181 |
| 13 | Fidelity Exploration & Production Company | 2,052 | 1,390 |
| 14 | Continental Resources | 1,618 | 595 |
| 15 | Barrett Resources | 1,587 | 1,338 |
| 16 | Samson Resources Company | 1,554 | 6 |
| 17 | Atx Energy Partners | 1,517 | 7 |
| 18 | Seven Sisters Oil & Gas | 1,385 | 0 |
| 19 | Pinnacle Gas Resources | 1,355 | 580 |
| 20 | Pine Haven Resources | 1,332 | 100 |
| 21 | C M S Oil And Gas Company | 1,325 | 736 |
| 22 | Ballard Petroleum Holdings | 1,285 | 179 |
| 23 | Titan Exploration | 1,212 | 11 |
| 24 | Anschutz Oil Company | 1,211 | — |
| 25 | Sage Butte Prb Operating, LLC | 1,127 | 103 |
The largest operators in the Powder River Basin by well count in this snapshot are EOG Resources (8,739 wells), Anschutz Exploration (5,358 wells), Devon Energy Production Company (5,072 wells), Lance Oil & Gas Company (3,989 wells), Pennaco Energy Incorporated (3,700 wells). The snapshot includes 2,717 operators and is dated 2026-09-03.
No. “Have produced” counts wells with a recorded first-production date. It does not confirm current production or current royalty payments. The “Wells” column counts well records associated with each operator in this basin snapshot.
Use the linked operator profiles and basin mineral-rights guide for related information. The inquiry link below provides a way to contact Buckhead about your interest.
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Well counts come from Buckhead Energy analysis of public oil and gas data (data as of 2026-09-03); reflect wells where each company is the current operator of record in the Powder River Basin. Informational only.
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