Big Horn County, Wyoming Wells Summary
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Total wells
Most recent drilling
First on record
Activity status
Big Horn County contains 2,587 wells on file, with top operators including MERIT ENERGY COMPANY and MARATHON OIL COMPANY.
Wells in Big Horn span several oil & gas fields including GARLAND and WC.
Most recent well on record: 68-K35, operated by DEVON ENERGY PRODUCTION COMPANY LP — last updated March 2026.
Active drilling rigs · Baker Hughes snapshot, week of 2026-07-17
By basin
- 17 Other
Drilling for
- 14 Oil
- 3 Gas
Big Horn County well density
Every dot is one well — small blue dots are historic wells;
larger orange dots are wells with activity in the last 60 days.
2,587 wells plotted ·
0 active in last 60 days
Basemap © OpenStreetMap contributors · well data © Oil and Gas Information · tiles served by DynamoMap
Top Operators in Big Horn County by total wells
Operators: Merit Energy Company, Marathon Oil Company, Endeavor Energy Llc, Natural Gas Processing Company, Kcs Mountain Resources Inc, Tribar Resources Llc, Big Horn Oil & Gas, Allen Oil, New Era Petroleum Inc, Kentex Worland Llc.
Top Oil & Gas Fields intersecting Big Horn County
Fields: Garland, Wc, Greybull, Torchlight, Byron, Manderson, Spence Dome, Bonanza, Lamb, Sage Creek.
Top Counties in Wyoming most active by total wells
Compare Big Horn against the other busiest counties in Wyoming:
Recent wells
| Well Name | Last activity | Updates | Operator | API |
|---|---|---|---|---|
| 68-K35 | 2026-03-18 | DEVON ENERGY PRODUCTION COMPANY LP | 321063 | |
| 33-1 | 2026-03-18 | BARNHART DRILLING CO INC | 321061 | |
| 32-12T | 2026-03-18 | KCS MOUNTAIN RESOURCES INC | 321051 | |
| 31-1 | 2026-03-18 | CONWEST EXPLORATION DELAWARE INC | 321054 | |
| 12-11-M2 | 2026-03-18 | KCS MOUNTAIN RESOURCES INC | 321048 | |
| 23-1T | 2026-03-18 | KCS MOUNTAIN RESOURCES INC | 321052 | |
| GARLAND #74 | 2026-03-18 | MARATHON OIL COMPANY | 321043 | |
| 21-32 | 2026-03-18 | KCS MOUNTAIN RESOURCES INC | 321050 | |
| 32-33P | 2026-03-18 | KCS MOUNTAIN RESOURCES INC | 321041 | |
| 44-29L | 2026-03-18 | KCS MOUNTAIN RESOURCES INC | 321015 |
Surface Ownership Records:
