Yellowstone County, Montana Wells Summary
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Total wells
Most recent drilling
First on record
Activity status
Yellowstone County contains 448 wells on file, with top operators including Clay's Consulting, LLC and Calburn Energy Corporation.
Wells in Yellowstone span several oil & gas fields including Mosser Dome and Wolf Springs.
Most recent well on record: Well 1, operated by Worland Oil — last updated March 2026.
Active drilling rigs · Baker Hughes snapshot, week of 2026-05-29
By basin
- 2 Williston
Drilling for
- 2 Oil
Yellowstone 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.
448 wells plotted ·
0 active in last 60 days
Basemap © OpenStreetMap contributors · well data © Oil and Gas Information · tiles served by DynamoMap
Top Operators in Yellowstone County by total wells
Operators: Clay's Consulting, Llc, Calburn Energy Corporation, Equitable Resources Energy Co, Western Region, Carter Oil Co., Basso, Westwood, Lindberg, Wolf, Big Snowy Resources Lp, Beartooth Oil & Gas Company, Integrity Oil & Gas Company, Hodges, A.j. Industries, Inc., R & J Production, Inc..
Top Oil & Gas Fields intersecting Yellowstone County
Fields: Mosser Dome, Wolf Springs, Laurel, Wildcat Yellowstone, N, Wolf Springs, South, Weed Creek, Crooked Creek, Wildcat Yellowstone, S.
Top Counties in Montana most active by total wells
Compare Yellowstone against the other busiest counties in Montana:
Recent wells
| Well Name | Last activity | Updates | Operator | API |
|---|---|---|---|---|
| Well 1 | 2026-03-18 | Worland Oil | 25111050460000 | |
| Clark Fork 2 | 2026-03-18 | Clark Fork Oil | 25111050420000 | |
| Mosser Dome 2 | 2026-03-18 | Unknown | 25111062600000 | |
| Mosser Dome 1 | 2026-03-18 | Unknown | 25111062590000 | |
| Well 1 | 2026-03-18 | Victory Oil & Gas | 25111050450000 | |
| Clark Fork 3 | 2026-03-18 | Clark Fork Oil | 25111050470000 | |
| Blue Ridge #20-2 | 2019-07-18 | Goldrock Minerals LLC | 25111212850000 | |
| Heberle 42-33 | 2015-07-30 | Vecta Oil & Gas, Ltd. | 25111212780000 | |
| Heberle 41-33 | 2015-01-06 | Vecta Oil & Gas, Ltd. | 25111212770000 | |
| McFarland 06-01N-24E 1 | 2014-06-17 | Zodiac Montana, LLC | 25111212820000 |
Surface Ownership Records:
