220 wells across 116 active operators, with 1 drilling permits filed in the last 24 months.
Refreshed monthly from WOGCC well-header records. Data current as of 2026-08-09.
Quick answer: The Hanna formation in Wyoming has 220 wells on record across 116 active operators, with 1 drilling permits filed in the last 24 months (as of 2026-08-09). Its most active operators by well count are Marathon Oil Company, Production Service & Equipment, Mingo Oil Producers, Ames Oil & Gas and Nortex Gas & Oil Company. Compiled from Wyoming Oil & Gas Conservation Commission (WOGCC) well-header records, refreshed monthly.
The operators with the most well counts targeting the Hanna formation in Wyoming:
| # | Operator | Wells in Hanna |
|---|---|---|
| 1 | Marathon Oil Company | 17 |
| 2 | Production Service & Equipment | 14 |
| 3 | Mingo Oil Producers | 11 |
| 4 | Ames Oil & Gas | 6 |
| 5 | Nortex Gas & Oil Company | 4 |
| 6 | Metfuel Wyoming | 4 |
| 7 | Bpx Operating Company | 4 |
| 8 | True Oil | 4 |
| 9 | Trigood Oil Company | 3 |
| 10 | Consolidated Oil & Gas | 3 |
The Wyoming counties with the most Hanna activity:
Carbon
The most recent 1 drilling permits filed for Hanna wells in Wyoming:
| Permit Date | Well | API | County | Operator | Lateral (ft) |
|---|---|---|---|---|---|
| 2025-07-29 | Usgs Hanna Draw 2 2 | 49007249600000 |
Carbon | U S Geological Survey | — |
The Hanna is one of Wyoming's active oil and gas plays, with 220 wells on file across 116 distinct operators of record. Operators have filed 1 drilling permits targeting the Hanna 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 Carbon, knowing whether your tract sits within an active Hanna 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 Wyoming oil & gas formations & plays · Download the Wyoming formations dataset (CSV)
220 wells target the Hanna in Wyoming, worked by 116 active operators, per WOGCC well-header records (as of 2026-08-09).
By well count, the most active Hanna operators in Wyoming are Marathon Oil Company, Production Service & Equipment, Mingo Oil Producers, Ames Oil & Gas and Nortex Gas & Oil Company. The full ranking is in the table on this page.
Operators filed 1 drilling permits targeting the Hanna in the last 24 months — a live measure of current activity, per WOGCC records.
Operators filed 1 new drilling permits targeting the Hanna in Wyoming over the last 24 months. New permits and spuds are the clearest signal of active Hanna drilling, per WOGCC records (as of 2026-08-09).
Hanna activity in Wyoming currently spans 220 wells on record and 116 active operators, led by Marathon Oil Company, Production Service & Equipment, Mingo Oil Producers, Ames Oil & Gas and Nortex Gas & Oil Company, with 1 drilling permits filed in the last 24 months — refreshed monthly from Wyoming Oil & Gas Conservation Commission (WOGCC) well-header records (as of 2026-08-09).
The most active Hanna counties in Wyoming are Carbon.
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 Hanna 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.
Get a free written offer based on your specific tract, operator, and the current Hanna activity in your area.
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Formation: Hanna
State: Wyoming
Total wells: 220
Active operators: 116
Permits 24mo: 1
Last refresh: 2026-08-09