Green River Basin Formation in Colorado: Operators, Permits & Activity 2026

Name: Green River Basin Formation – Colorado Oil & Gas Activity
Creator: Buckhead Energy
License: https://creativecommons.org/licenses/by/4.0/

Total Wells

445

Active Operators

146

Total Lateral

61 miles

Permits (24mo)

Top Operators in the Green River Basin (Colorado)

The operators with the most well counts targeting the Green River Basin formation in Colorado:

#	Operator	Wells in Green River Basin
1	Texaco Exploration And Production	36
2	Conocophillips Company	36
3	Cabot Oil & Gas	27
4	Anschutz Exploration	23
5	Wesco Operating	19
6	Beeman Oil & Gas	13
7	Andrikopoulos Resources A G	12
8	Poci	11
9	Eastern American Energy	10
10	Grmr Oil & Gas	10

Primary Colorado Counties for the Green River Basin

The Colorado counties with the most Green River Basin activity:

Moffat, Routt, Rio Blanco

Recent Green River Basin Drilling Permits in Colorado

The most recent 16 drilling permits filed for Green River Basin wells in Colorado:

Permit Date	Well	API	County	Operator	Lateral (ft)
2026-07-07	Coyote Fed 0397-14-2-3nh	`05081078490000`	Moffat	Anschutz Exploration	10,453
2026-07-07	Coyote Fed 0397-14-23-13nh	`05081078500000`	Moffat	Anschutz Exploration	10,353
2026-07-07	Coyote Fed 0397-14-2-3wnh	`05081078480000`	Moffat	Anschutz Exploration	10,400
2026-07-07	Coyote Fed 0397-14-2-4nh	`05081078470000`	Moffat	Anschutz Exploration	9,565
2026-06-29	Leghorn Fed 0497-34 3-14w Nh	`05081078630000`	Moffat	Anschutz Exploration	9,561
2026-06-29	Leghorn Fed 0497-34 22-3 Nh	`05081078690000`	Moffat	Anschutz Exploration	7,922
2026-06-29	Leghord Fed 0497-34 3-14ww Nh	`05081078640000`	Moffat	Anschutz Exploration	9,568
2026-06-29	Leghorn Fed 0497-34 3-16 Nh	`05081078670000`	Moffat	Anschutz Exploration	9,752
2026-06-29	Leghorn Fed 0497-34 3-16w Nh	`05081078680000`	Moffat	Anschutz Exploration	9,738
2026-06-29	Leghorn Fed 0497-34 3-15 Nh	`05081078650000`	Moffat	Anschutz Exploration	9,579
2026-06-29	Leghorn Fed 0497-34 3-15w Nh	`05081078660000`	Moffat	Anschutz Exploration	9,574
2026-06-29	Leghorn Fed 0497-34 3-14 Nh	`05081078620000`	Moffat	Anschutz Exploration	9,558
2026-02-11	Wpu 36-1b-Wm-Ne	`05081078590000`	Moffat	Petroleum Resources	16,905
2026-02-11	Wpu 36-1c-Wm-Ne	`05081078600000`	Moffat	Petroleum Resources	17,723
2026-02-11	Wpu 36-1d-R-Ne	`05081078610000`	Moffat	Petroleum Resources	16,395
2025-10-31	Wpu 14-1 Pwd 1	`05081078580000`	Moffat	Petroleum Resources	—

About the Green River Basin Formation in Colorado

The Green River Basin is one of Colorado's active oil and gas plays, with 445 wells on file across 146 distinct operators of record. Operators have filed 24 drilling permits targeting the Green River Basin 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 Moffat, Routt, Rio Blanco, knowing whether your tract sits within an active Green River Basin 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)

Frequently Asked Questions

How many wells target the Green River Basin formation in Colorado?

445 wells target the Green River Basin in Colorado, worked by 146 active operators, per ECMC well-header records (as of 2026-08-23).

Who are the top operators in the Green River Basin in Colorado?

By well count, the most active Green River Basin operators in Colorado are Texaco Exploration And Production, Conocophillips Company, Cabot Oil & Gas, Anschutz Exploration and Wesco Operating. The full ranking is in the table on this page.

How active is the Green River Basin formation right now?

Operators filed 24 drilling permits targeting the Green River Basin in the last 24 months — a live measure of current activity, per ECMC records.

Is there active drilling in the Green River Basin in Colorado?

Operators filed 24 new drilling permits targeting the Green River Basin in Colorado over the last 24 months. New permits and spuds are the clearest signal of active Green River Basin drilling, per ECMC records (as of 2026-08-23).

What is the current Green River Basin activity in Colorado?

Green River Basin activity in Colorado currently spans 445 wells on record and 146 active operators, led by Texaco Exploration And Production, Conocophillips Company, Cabot Oil & Gas, Anschutz Exploration and Wesco Operating, with 24 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).

Which Colorado counties have the most Green River Basin activity?

The most active Green River Basin counties in Colorado are Moffat, Routt, Rio Blanco.

How do I find out what my Green River Basin mineral rights are worth?

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 Green River Basin 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

Citation (plain text)

Buckhead Energy (2026). U.S. Oil & Gas Reference & Drilling-Activity Data: Helium by Field, State Severance Tax & Deduction Rules, and Operator/County Activity (Version 2.0.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.21442884

BibTeX (machine-readable)

@dataset{buckheadEnergy2026_10528121442884,
  author    = {{Buckhead Energy}},
  title     = {{U.S. Oil & Gas Reference & Drilling-Activity Data: Helium by Field, State Severance Tax & Deduction Rules, and Operator/County Activity}},
  year      = {2026},
  version   = {2.0.0},
  publisher = {Zenodo},
  doi       = {10.5281/zenodo.21442884},
  url       = {https://doi.org/10.5281/zenodo.21442884}
}

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.