3,507 wells across 135 active operators, with 0 drilling permits filed in the last 24 months.
Refreshed monthly from BOGC well-header records. Data current as of 2026-08-23.
Quick answer: The Judith River- Eagle formation in Montana has 3,507 wells on record across 135 active operators, with 0 drilling permits filed in the last 24 months (as of 2026-08-23). Its most active operators by well count are Mmgl Mt I, LLC, Ridge Oil & Gas, Shell Oil Company, Wbi Energy Transmission and Fidelity Exploration & Production Company. Compiled from Montana Board of Oil and Gas Conservation (BOGC) well-header records, refreshed monthly.
The operators with the most well counts targeting the Judith River- Eagle formation in Montana:
| # | Operator | Wells in Judith River- Eagle |
|---|---|---|
| 1 | Mmgl Mt I, LLC | 1,105 |
| 2 | Ridge Oil & Gas | 940 |
| 3 | Shell Oil Company | 249 |
| 4 | Wbi Energy Transmission | 199 |
| 5 | Fidelity Exploration & Production Company | 171 |
| 6 | Encore Operating | 121 |
| 7 | Burlington Resources Oil & Gas Company | 72 |
| 8 | Williston Basin Interstate Pipeline Company | 65 |
| 9 | Mondak Utilities Company & Fidelity Gas Company | 65 |
| 10 | Denbury Onshore | 60 |
The Montana counties with the most Judith River- Eagle activity:
Fallon, Wibaux, Dawson, Prairie
The Judith River- Eagle is one of Montana's active oil and gas plays, with 3,507 wells on file across 135 distinct operators of record. Operators have filed 0 drilling permits targeting the Judith River- Eagle in the last 24 months — a measure of how active the play is right now versus its historical baseline.
For mineral owners with interests in Fallon, Wibaux, Dawson, Prairie, knowing whether your tract sits within an active Judith River- Eagle footprint is a foundational valuation question. Active formations with consistent permit flow command premium pricing; legacy formations with steady but declining production are valued differently.
See all Montana oil & gas formations & plays · Download the Montana formations dataset (CSV)
3,507 wells target the Judith River- Eagle in Montana, worked by 135 active operators, per BOGC well-header records (as of 2026-08-23).
By well count, the most active Judith River- Eagle operators in Montana are Mmgl Mt I, LLC, Ridge Oil & Gas, Shell Oil Company, Wbi Energy Transmission and Fidelity Exploration & Production Company. The full ranking is in the table on this page.
Operators filed 0 drilling permits targeting the Judith River- Eagle in the last 24 months — a live measure of current activity, per BOGC records.
Operators filed 0 new drilling permits targeting the Judith River- Eagle in Montana over the last 24 months. New permits and spuds are the clearest signal of active Judith River- Eagle drilling, per BOGC records (as of 2026-08-23).
Judith River- Eagle activity in Montana currently spans 3,507 wells on record and 135 active operators, led by Mmgl Mt I, LLC, Ridge Oil & Gas, Shell Oil Company, Wbi Energy Transmission and Fidelity Exploration & Production Company, with 0 drilling permits filed in the last 24 months — refreshed monthly from Montana Board of Oil and Gas Conservation (BOGC) well-header records (as of 2026-08-23).
The most active Judith River- Eagle counties in Montana are Fallon, Wibaux, Dawson, Prairie.
Value depends on your net mineral acres or royalty decimal, the operator, the remaining drilling locations, and current oil and gas prices. Buckhead Energy checks your tract against current Judith River- Eagle well and permit data and puts a free, no-obligation written offer in writing — this page is informational only, not a valuation.
Cite this dataset
Permanently archived and citable via a DOI on Zenodo (CERN), under a CC BY 4.0 license. DOI: 10.5281/zenodo.21442884 · View on Zenodo
License & attribution: This data is licensed CC BY 4.0. You are free to share and adapt it, including commercially, provided you credit “Buckhead Energy” and link back to this page or the DOI above.
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Formation: Judith River- Eagle
State: Montana
Total wells: 3,507
Active operators: 135
Permits 24mo: 0
Last refresh: 2026-08-23
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