SPENCE DOME Field Activity and Well Summary
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Total wells
Drill activity
The SPENCE DOME oil & gas field in Wyoming contains 120 wells on file.
Top operators: ENDEAVOR ENERGY LLC, PACIFIC WESTERN OIL COMPANY, and others.
Most recent well: SPENCE DOME #75, operated by ENDEAVOR ENERGY LLC — last updated March 2026.
SPENCE DOME field coverage
Counties the SPENCE DOME field intersects.
Recent wells
| Well Name | County | Last activity | Updates | Operator | API |
|---|---|---|---|---|---|
| SPENCE DOME #75 | Big Horn | 2026-03-18 | ENDEAVOR ENERGY LLC | 321531 | |
| SPENCE DOME #77 | Big Horn | 2026-03-18 | ENDEAVOR ENERGY LLC | 321541 | |
| SPENCE DOME #79 | Big Horn | 2026-03-18 | ENDEAVOR ENERGY LLC | 321648 | |
| SPENCE DOME #78 | Big Horn | 2026-03-18 | ENDEAVOR ENERGY LLC | 321542 | |
| SPENCE DOME #85 | Big Horn | 2026-03-18 | ENDEAVOR ENERGY LLC | 321647 | |
| 1-A | Big Horn | 2026-03-18 | MISSOURI NEBRASKA WY DEVEL AND MINING CO | 307182 | |
| SPENCE DOME #71 | Big Horn | 2026-03-18 | ENDEAVOR ENERGY LLC | 321535 | |
| SPENCE DOME #76 | Big Horn | 2009-03-02 | ENDEAVOR ENERGY LLC | 321540 | |
| SPENCE DOME #92 | Big Horn | 2008-01-30 | ENDEAVOR ENERGY LLC | 321589 | |
| SPENCE DOME #72 | Big Horn | 2001-10-16 | ENDEAVOR ENERGY LLC | 321534 |
Top Operators in the SPENCE DOME field by total wells
Operators: Endeavor Energy Llc, Pacific Western Oil Company, Navajo Development, Bp America Production Company, Alderdice G W, Husky Oil Company, Wiley G O, Elite Oil, Chickawa Oil, Griffith A.
Other Major Fields in Wyoming most active by total wells
Compare the SPENCE DOME 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