3,452 wells across 435 active operators, with 11 drilling permits filed in the last 24 months.
Refreshed monthly from ECMC well-header records. Data current as of 2026-08-23.
Quick answer: The Las Animas Arch formation in Colorado has 3,452 wells on record across 435 active operators, with 11 drilling permits filed in the last 24 months (as of 2026-08-23). Its most active operators by well count are Mull Drilling Company, Anadarko Petroleum, Citation Oil & Gas, Murfin Drilling and Txo Production. Compiled from Colorado Energy & Carbon Management Commission (ECMC) well-header records, refreshed monthly.
The operators with the most well counts targeting the Las Animas Arch formation in Colorado:
| # | Operator | Wells in Las Animas Arch |
|---|---|---|
| 1 | Mull Drilling Company | 487 |
| 2 | Anadarko Petroleum | 435 |
| 3 | Citation Oil & Gas | 220 |
| 4 | Murfin Drilling | 121 |
| 5 | Txo Production | 104 |
| 6 | Strachan Exploration | 69 |
| 7 | Wiepkingfullerton Energy | 64 |
| 8 | Poandg Operating | 58 |
| 9 | Texas Oil & Gas | 57 |
| 10 | Champlin Petroleum Company | 55 |
The Colorado counties with the most Las Animas Arch activity:
Cheyenne, Kiowa, Kit Carson, Bent, Otero
The Las Animas Arch is one of Colorado's active oil and gas plays, with 3,452 wells on file across 435 distinct operators of record. Operators have filed 11 drilling permits targeting the Las Animas Arch 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 Cheyenne, Kiowa, Kit Carson, Bent, Otero, knowing whether your tract sits within an active Las Animas Arch 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 Colorado oil & gas formations & plays · Download the Colorado formations dataset (CSV)
3,452 wells target the Las Animas Arch in Colorado, worked by 435 active operators, per ECMC well-header records (as of 2026-08-23).
By well count, the most active Las Animas Arch operators in Colorado are Mull Drilling Company, Anadarko Petroleum, Citation Oil & Gas, Murfin Drilling and Txo Production. The full ranking is in the table on this page.
Operators filed 11 drilling permits targeting the Las Animas Arch in the last 24 months — a live measure of current activity, per ECMC records.
Operators filed 11 new drilling permits targeting the Las Animas Arch in Colorado over the last 24 months. New permits and spuds are the clearest signal of active Las Animas Arch drilling, per ECMC records (as of 2026-08-23).
Las Animas Arch activity in Colorado currently spans 3,452 wells on record and 435 active operators, led by Mull Drilling Company, Anadarko Petroleum, Citation Oil & Gas, Murfin Drilling and Txo Production, with 11 drilling permits filed in the last 24 months — refreshed monthly from Colorado Energy & Carbon Management Commission (ECMC) well-header records (as of 2026-08-23).
The most active Las Animas Arch counties in Colorado are Cheyenne, Kiowa, Kit Carson, Bent, Otero.
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 Las Animas Arch 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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Sell Your Colorado Mineral Rights
Formation: Las Animas Arch
State: Colorado
Total wells: 3,452
Active operators: 435
Permits 24mo: 11
Last refresh: 2026-08-23
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