Niobrara County, Wyoming Wells Summary
Back to Wyoming Well Records
Total wells
Last 12 months
Prior 12 months
Year-over-year
Niobrara County contains 3,091 wells on file, with top operators including CENTURY OIL AND GAS LLC and MARATHON OIL COMPANY.
Wells in Niobrara span several oil & gas fields including WC and LANCE CREEK.
Most recent well on record: 3-32, operated by NORTH FINN LLC — 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
Niobrara 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.
3,090 wells plotted ·
0 active in last 60 days
Basemap © OpenStreetMap contributors · well data © Oil and Gas Information · tiles served by DynamoMap
Top Operators in Niobrara County by total wells
Operators: Century Oil And Gas Llc, Marathon Oil Company, Conoco Inc, Sunshine Valley Petroleum, Jp Oil Wyoming Llc, Coronado Oil Company, Finley Resources Inc, Buck Creek Oil Company, Cheyenne River Llc, Breitburn Operating L.p..
Top Oil & Gas Fields intersecting Niobrara County
Fields: Wc, Lance Creek, Mule Creek, Lightning Creek, Boggy Creek, Mule Creek West, Greasewood, Red Bird, Buck Creek, Snyder Creek.
Top Counties in Wyoming most active by total wells
Compare Niobrara against the other busiest counties in Wyoming:
Recent wells
| Well Name | Last activity | Updates | Operator | API |
|---|---|---|---|---|
| 3-32 | 2026-03-18 | NORTH FINN LLC | 2726587 | |
| 12-30 | 2026-03-18 | BEAR CLAW OIL AND GAS LLC | 2726578 | |
| 11-30 | 2026-03-18 | BEAR CLAW OIL AND GAS LLC | 2726577 | |
| GREASEWOOD WEST #5 | 2026-03-18 | O'BRIEN ENERGY RESOURCES CORPORATION | 2726580 | |
| WC #1 | 2026-03-18 | ENERGAS CORPORATION | 2726570 | |
| 4-23-38-67H | 2026-03-18 | ABRAXAS PETROLEUM CORPORATION | 2726563 | |
| GREASEWOOD WEST #6 | 2026-03-18 | O'BRIEN ENERGY RESOURCES CORPORATION | 2726572 | |
| WC #2 | 2026-03-18 | ENERGAS CORPORATION | 2726569 | |
| 3-13-38-67H | 2026-03-18 | ABRAXAS PETROLEUM CORPORATION | 2721012 | |
| 3-22-38-67H | 2026-03-18 | ABRAXAS PETROLEUM CORPORATION | 2721006 |
Surface Ownership Records:
