BIG MEDICINE BOW Field Activity and Well Summary
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Total wells
Drill activity
The BIG MEDICINE BOW oil & gas field in Wyoming contains 36 wells on file.
Top operators: MARATHON OIL COMPANY, SONOMA ENERGY CORPORATION, and others.
Most recent well: 5-26, operated by MARATHON OIL COMPANY — last updated March 2026.
BIG MEDICINE BOW field coverage
Counties the BIG MEDICINE BOW field intersects.
Recent wells
| Well Name | County | Last activity | Updates | Operator | API |
|---|---|---|---|---|---|
| 5-26 | Carbon | 2026-03-18 | MARATHON OIL COMPANY | 721130 | |
| 44-23 | Carbon | 2026-03-18 | SONOMA ENERGY CORPORATION | 721605 | |
| BIG MEDICINE BOW #1 | Carbon | 1997-12-23 | VALKYRIE OPERATING LLC | 721593 | |
| 43-26 | Carbon | 1997-09-28 | SONOMA ENERGY CORPORATION | 721606 | |
| 13-25X | Carbon | 1997-09-09 | P & M PETROLEUM MANAGEMENT LLC | 721614 | |
| 13-25 | Carbon | 1997-08-19 | P & M PETROLEUM MANAGEMENT LLC | 721604 | |
| 4-26 | Carbon | 1996-09-05 | VALKYRIE OPERATING LLC | 705522 | |
| 4-25 | Carbon | 1988-12-31 | VALKYRIE OPERATING LLC | 721105 | |
| BIG MEDICINE BOW #1 | Carbon | 1956-07-14 | STANOLIND OIL & GAS COMPANY | 705460 | |
| BIG MEDICINE BOW #4 | Carbon | 1955-08-11 | MCELROY RANCH | 705465 |
Top Operators in the BIG MEDICINE BOW field by total wells
Operators: Marathon Oil Company, Sonoma Energy Corporation, Valkyrie Operating Llc, Mcelroy Ranch, Southwestern Petroleum Co & Cliff Ptr Co, P & M Petroleum Management Llc, Warren Oil, Producers & Refiners Corporation, Southwestern Petroleum, Stanolind Oil & Gas Company.
Other Major Fields in Wyoming most active by total wells
Compare the BIG MEDICINE BOW field against the other busiest oil and gas fields in Wyoming:
- Wc · 76,411 wells
- Prb Coal Bed · 46,479 wells
- Pinedale · 5,251 wells
- Salt Creek · 4,822 wells
- Jonah · 3,451 wells
- Osage · 2,266 wells
- Crossbow · 1,471 wells
- Siberia Ridge · 1,453 wells
- Teapot Naval Reserve · 1,424 wells
- Echo Springs · 1,063 wells