446 wells across 146 recorded operators, with 18 drilling permits filed in the 24-month window at summary refresh.
Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
Quick answer: The Green River Basin formation in Colorado has 446 wells on record across 146 recorded operators, with 18 drilling permits filed in the 24-month window at source refresh. Its operators with the most wells on record are Conocophillips Company, Texaco Exploration And Production, Cabot Oil & Gas, Anschutz Exploration and Wesco Operating. Source: Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
The operators with the most well counts targeting the Green River Basin formation in Colorado:
| # | Operator | Wells in Green River Basin |
|---|---|---|
| 1 | Conocophillips Company | 36 |
| 2 | Texaco Exploration And Production | 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 | Grmr Oil & Gas | 10 |
| 10 | Eastern American Energy | 10 |
The Colorado counties with the most Green River Basin activity:
Moffat, Routt, Rio Blanco
The Green River Basin is not among the Colorado formations tracked separately in the yearly permit mix, so only statewide permit counts are shown.
| Year | State permits | This formation | Share | Median lateral |
|---|---|---|---|---|
| 2026 | 604 | — | — | — |
| 2025 | 696 | — | — | — |
| 2024 | 862 | — | — | — |
| 2023 | 902 | — | — | — |
| 2022 | 1,044 | — | — | — |
| 2021 | 517 | — | — | — |
| 2020 | 958 | — | — | — |
| 2019 | 1,637 | — | — | — |
Share of each year’s Colorado drilling permits by target formation, for the formations with the most permits.
| Year | Muddy J Sand | Denver Basin | Mesaverde | Piceance Basin | San Juan Basin | Las Vegas - Raton Basin |
|---|---|---|---|---|---|---|
| 2026 | 16.2% | 69.5% | — | 6.8% | 1.7% | 1.2% |
| 2025 | 16.8% | 64.1% | 3.3% | 11.5% | 2.4% | 0.7% |
| 2024 | 15.3% | 64.6% | 2% | 12.3% | 1.6% | 1.2% |
| 2023 | 22.1% | 56.8% | 5.7% | 8.5% | 4.8% | 1.1% |
| 2022 | 37.1% | 32.5% | 8.3% | 9.5% | 7.7% | 0.5% |
| 2021 | 65.6% | — | 26.1% | — | 4.8% | 0.6% |
| 2020 | 88.4% | 0.6% | 10.5% | — | — | — |
| 2019 | 85.1% | 0.4% | 10.8% | 0.2% | 0.6% | — |
Buckhead Energy computes every figure on this page from grouped records in public oil and gas data. The page shows counts, sums, percentiles and indexes only; it does not list individual wells, leases or permits.
Counts under 3 wells and percentiles under 5 wells are withheld; totals are floors.
Share is the formation’s permits as a percent of the state’s permits that year. Median lateral length is published only when at least 5 permits stand behind it.
Last computed: 2026-11-01. These figures are informational only and are not a valuation of any mineral or royalty interest.
The Green River Basin is a formation/play group recorded in Colorado, with 446 wells on file across 146 distinct operators of record. Operators have filed 18 drilling permits targeting the Green River Basin in the 24-month window at summary refresh. These are stored records, not a live measure of drilling.
Recorded formation activity provides regional context. It does not establish ownership, future production, royalty payments or a value for an individual tract. Consult qualified professionals about your specific interest.
446 wells target the Green River Basin in Colorado, worked by 146 recorded operators, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
The Green River Basin operators with the most wells on record in Colorado are Conocophillips Company, Texaco Exploration And Production, Cabot Oil & Gas, Anschutz Exploration and Wesco Operating. The full ranking is in the table on this page. Formation summary date: 2026-11-01.
Operators filed 18 drilling permits targeting the Green River Basin in the 24-month window at source refresh, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
Operators filed 18 new drilling permits targeting the Green River Basin in Colorado in the 24-month window at source refresh. New permits and spuds record reported activity stages; they do not establish ongoing drilling, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
Green River Basin activity in Colorado includes 446 wells on record and 146 recorded operators, with 18 drilling permits filed in the 24-month window at source refresh — from Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
The primary counties recorded for Green River Basin in Colorado are Moffat, Routt, Rio Blanco. Formation summary date: 2026-11-01.
Value depends on your net mineral acres or royalty decimal, the operator, the remaining drilling locations, and current oil and gas prices. This page is informational only, not a valuation. Formation summary date: 2026-11-01.
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Get Your Free Written OfferFormation: Green River Basin
State: Colorado
Total wells: 446
Recorded operators: 146
Permits 24mo: 18
Summary date: 2026-11-01
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