45 wells across 37 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: 2026-11-06.
Quick answer: The North Western Overthrust formation in Montana has 45 wells on record across 37 recorded operators, with 0 drilling permits filed in the 24-month window at source refresh. Its operators with the most wells on record are Mosbacher Production Company, Kintla Oil Company, Beauchamp C W, Amoco Production Company and Sun Explorationproduction Company. Source: Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-06.
The operators with the most well counts targeting the North Western Overthrust formation in Montana:
| # | Operator | Wells in North Western Overthrust |
|---|---|---|
| 1 | Mosbacher Production Company | — |
| 2 | Kintla Oil Company | — |
| 3 | Beauchamp C W | — |
| 4 | Amoco Production Company | — |
| 5 | Sun Explorationproduction Company | — |
| 6 | Bnv Energy Company | — |
| 7 | The Anaconda Company | — |
| 8 | Atlantic Richfield Company | — |
| 9 | Barr Ranch | — |
| 10 | American Land And Energy | — |
The Montana counties with the most North Western Overthrust activity:
Lewis And Clark, Flathead
The North Western Overthrust is not among the Montana formations tracked separately in the yearly permit mix, so only statewide permit counts are shown.
| Year | State permits | This formation | Share | Median lateral |
|---|---|---|---|---|
| 2026 | 208 | — | — | — |
| 2025 | 54 | — | — | — |
| 2024 | 72 | — | — | — |
| 2023 | 61 | — | — | — |
| 2022 | 65 | — | — | — |
| 2021 | 50 | — | — | — |
| 2020 | 22 | — | — | — |
| 2019 | 75 | — | — | — |
Share of each year’s Montana drilling permits by target formation, for the formations with the most permits.
| Year | Williston Basin | Bakken | Sweetgrass Arch | Powder River Basin | Central Montana Uplift | Heath Fm |
|---|---|---|---|---|---|---|
| 2026 | 95.2% | — | 1.4% | — | — | — |
| 2025 | 85.2% | 7.4% | 7.4% | — | — | — |
| 2024 | 90.3% | — | 5.6% | — | 4.2% | — |
| 2023 | 75.4% | 4.9% | 9.8% | — | 4.9% | — |
| 2022 | 63.1% | 9.2% | 13.8% | — | 9.2% | — |
| 2021 | 42% | 38% | 12% | — | 8% | — |
| 2020 | 54.5% | — | — | — | — | — |
| 2019 | 28% | 16% | 8% | 34.7% | 4% | 5.3% |
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: 2026-11-06. These figures are informational only and are not a valuation of any mineral or royalty interest.
The North Western Overthrust is a formation/play group recorded in Montana, with 45 wells on file across 37 distinct operators of record. Operators have filed 0 drilling permits targeting the North Western Overthrust 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.
45 wells target the North Western Overthrust in Montana, worked by 37 recorded operators, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-06.
The North Western Overthrust operators with the most wells on record in Montana are Mosbacher Production Company, Kintla Oil Company, Beauchamp C W, Amoco Production Company and Sun Explorationproduction Company. The full ranking is in the table on this page. Formation summary date: 2026-11-06.
Operators filed 0 drilling permits targeting the North Western Overthrust in the 24-month window at source refresh, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-06.
Operators filed 0 new drilling permits targeting the North Western Overthrust in Montana 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: 2026-11-06.
North Western Overthrust activity in Montana includes 45 wells on record and 37 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: 2026-11-06.
The primary counties recorded for North Western Overthrust in Montana are Lewis And Clark, Flathead. Formation summary date: 2026-11-06.
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: 2026-11-06.
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Get Your Free Written OfferFormation: North Western Overthrust
State: Montana
Total wells: 45
Recorded operators: 37
Permits 24mo: 0
Summary date: 2026-11-06
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