28 wells across 21 recorded operators, with 0 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 Yellowstone Province formation in Wyoming has 28 wells on record across 21 recorded operators, with 0 drilling permits filed in the 24-month window at source refresh. Its operators with the most wells on record are Exxon Mobil, Williams Exploration Company, American Beryllium Oil, Texaco Exploration And Production and Marmik Oil Company. 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 Yellowstone Province formation in Wyoming:
| # | Operator | Wells in Yellowstone Province |
|---|---|---|
| 1 | Exxon Mobil | 5 |
| 2 | Williams Exploration Company | 3 |
| 3 | American Beryllium Oil | — |
| 4 | Texaco Exploration And Production | — |
| 5 | Marmik Oil Company | — |
| 6 | The Tower Company | — |
| 7 | Bradco Oil & Gas Company | — |
| 8 | Kucheraeb | — |
| 9 | Tenneco Oil Company | — |
| 10 | Travis G | — |
The Wyoming counties with the most Yellowstone Province activity:
Teton, Sublette
The Yellowstone Province is not among the Wyoming formations tracked separately in the yearly permit mix, so only statewide permit counts are shown.
| Year | State permits | This formation | Share | Median lateral |
|---|---|---|---|---|
| 2026 | 616 | — | — | — |
| 2025 | 566 | — | — | — |
| 2024 | 459 | — | — | — |
| 2023 | 581 | — | — | — |
| 2022 | 696 | — | — | — |
| 2021 | 505 | — | — | — |
| 2020 | 456 | — | — | — |
| 2019 | 1,197 | — | — | — |
Share of each year’s Wyoming drilling permits by target formation, for the formations with the most permits.
| Year | Niobrara- Mowry | Powder River Basin | Mesaverde-Lance | Muddy J Sand | Green River Basin | Mesaverde-Lance-Lewis |
|---|---|---|---|---|---|---|
| 2026 | 2.8% | 70% | — | — | 16.4% | — |
| 2025 | 6.5% | 59.4% | 0.9% | — | 19.8% | — |
| 2024 | 17.2% | 52.5% | 1.1% | — | 9.2% | 1.7% |
| 2023 | 15% | 42.3% | 1% | 7.6% | 13.3% | 0.7% |
| 2022 | 33.9% | 26.4% | 6.8% | 10.8% | 4.3% | 2.3% |
| 2021 | 59.4% | 4.6% | 17.8% | 13.9% | — | 2.6% |
| 2020 | 69.7% | 5% | 2.6% | 15.1% | — | 3.1% |
| 2019 | 56% | 6.5% | 17.3% | 9.4% | — | 6.7% |
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 Yellowstone Province is a formation/play group recorded in Wyoming, with 28 wells on file across 21 distinct operators of record. Operators have filed 0 drilling permits targeting the Yellowstone Province 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.
28 wells target the Yellowstone Province in Wyoming, worked by 21 recorded operators, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-01.
The Yellowstone Province operators with the most wells on record in Wyoming are Exxon Mobil, Williams Exploration Company, American Beryllium Oil, Texaco Exploration And Production and Marmik Oil Company. The full ranking is in the table on this page. Formation summary date: 2026-11-01.
Operators filed 0 drilling permits targeting the Yellowstone Province 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 0 new drilling permits targeting the Yellowstone Province in Wyoming 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.
Yellowstone Province activity in Wyoming includes 28 wells on record and 21 recorded operators, with 0 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 Yellowstone Province in Wyoming are Teton, Sublette. 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: Yellowstone Province
State: Wyoming
Total wells: 28
Recorded operators: 21
Permits 24mo: 0
Summary date: 2026-11-01
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