1,722 wells across 110 active operators, with 0 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 Codell-Niobrara formation in Wyoming has 1,722 wells on record across 110 active operators, with 0 drilling permits filed in the last 24 months (as of 2026-08-09). Its most active operators by well count are Gungnir Operating LLC, Eme Wyoming LLC, Bill Barrett, Rki Exploration & Production and Hesperus Energy Ii LLC. Compiled from Wyoming Oil & Gas Conservation Commission (WOGCC) well-header records, refreshed monthly.
The operators with the most well counts targeting the Codell-Niobrara formation in Wyoming:
| # | Operator | Wells in Codell-Niobrara |
|---|---|---|
| 1 | Gungnir Operating LLC | 996 |
| 2 | Eme Wyoming LLC | 252 |
| 3 | Bill Barrett | 55 |
| 4 | Rki Exploration & Production | 23 |
| 5 | Hesperus Energy Ii LLC | 22 |
| 6 | Petrovalues Wy LLC | 21 |
| 7 | Chesapeake Energy | 20 |
| 8 | Largo Exploration Resources LLC | 18 |
| 9 | Devon Energy Production Company | 16 |
| 10 | Samson Resources Company | 15 |
The Wyoming counties with the most Codell-Niobrara activity:
Goshen, Platte, Laramie, Sweetwater
The Codell-Niobrara is one of Wyoming's active oil and gas plays, with 1,722 wells on file across 110 distinct operators of record. Operators have filed 0 drilling permits targeting the Codell-Niobrara 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 Goshen, Platte, Laramie, Sweetwater, knowing whether your tract sits within an active Codell-Niobrara 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)
1,722 wells target the Codell-Niobrara in Wyoming, worked by 110 active operators, per WOGCC well-header records (as of 2026-08-09).
By well count, the most active Codell-Niobrara operators in Wyoming are Gungnir Operating LLC, Eme Wyoming LLC, Bill Barrett, Rki Exploration & Production and Hesperus Energy Ii LLC. The full ranking is in the table on this page.
Operators filed 0 drilling permits targeting the Codell-Niobrara in the last 24 months — a live measure of current activity, per WOGCC records.
Operators filed 0 new drilling permits targeting the Codell-Niobrara in Wyoming over the last 24 months. New permits and spuds are the clearest signal of active Codell-Niobrara drilling, per WOGCC records (as of 2026-08-09).
Codell-Niobrara activity in Wyoming currently spans 1,722 wells on record and 110 active operators, led by Gungnir Operating LLC, Eme Wyoming LLC, Bill Barrett, Rki Exploration & Production and Hesperus Energy Ii LLC, with 0 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 Codell-Niobrara counties in Wyoming are Goshen, Platte, Laramie, Sweetwater.
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 Codell-Niobrara 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 Codell-Niobrara activity in your area.
Get Your Free Mineral ValuationWyoming Oil & Gas Industry Snapshot Dashboard
Top Wyoming Operators Leaderboard
Wyoming Drilling Activity Report (permits, DUCs, spuds)
US Mineral Market Activity Index (all 11 states ranked 0–100)
US Mineral & Drilling Activity Index (national rollup)
Texas Industry Snapshot (largest producing state)
Largest US Operators — National Leaderboard
Browse the Full Operator Directory
Live Oil & Gas Prices (WTI + Henry Hub)
Sell Your Wyoming Mineral Rights
Formation: Codell-Niobrara
State: Wyoming
Total wells: 1,722
Active operators: 110
Permits 24mo: 0
Last refresh: 2026-08-09
Free written offers on Codell-Niobrara mineral rights in Wyoming.
Get Your Free Offer