1,051 wells across 31 recorded operators, with 382 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 Appalachian Basin - (Eastern Overthrust Area) formation in Ohio has 1,051 wells on record across 31 recorded operators, with 382 drilling permits filed in the 24-month window at source refresh. Its operators with the most wells on record are Ascent Resourcesmarcellus, EOG Ohio, LLC, Gulfport Appalachia, EOG Resources and Hilcorp Energy 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 Appalachian Basin - (Eastern Overthrust Area) formation in Ohio:
| # | Operator | Wells in Appalachian Basin - (Eastern Overthrust Area) |
|---|---|---|
| 1 | Ascent Resourcesmarcellus | 278 |
| 2 | Eog Ohio, LLC | 244 |
| 3 | Gulfport Appalachia | 147 |
| 4 | Eog Resources | 116 |
| 5 | Hilcorp Energy Company | 82 |
| 6 | Expand Operating LLC | 57 |
| 7 | Rice Drilling B | 32 |
| 8 | Inr Ohio LLC | 24 |
| 9 | Diversified Production LLC | 11 |
| 10 | Grenadier Energy Iii, LLC | 8 |
The Ohio counties with the most Appalachian Basin - (Eastern Overthrust Area) activity:
Monroe, Belmont, Harrison, Columbiana, Carroll
Drilling permits in Ohio each year, the Appalachian Basin - (Eastern Overthrust Area) count and share of them, and the median lateral length of those Appalachian Basin - (Eastern Overthrust Area) permits.
| Year | State permits | This formation | Share | Median lateral |
|---|---|---|---|---|
| 2026 | 513 | 127 | 24.8% | 5,292 ft |
| 2025 | 719 | 231 | 32.1% | 15,676 ft |
| 2024 | 644 | 158 | 24.5% | 16,021 ft |
| 2023 | 253 | 179 | 70.8% | 15,278 ft |
| 2022 | 329 | 233 | 70.8% | 12,925 ft |
| 2021 | 453 | 29 | 6.4% | 12,799 ft |
| 2020 | 404 | 6 | 1.5% | 10,136 ft |
| 2019 | 686 | <3 | — | n<5 |
Share of each year’s Ohio drilling permits by target formation, for the formations with the most permits.
| Year | Utica | Appalachian Basin - (Eastern Overthrust Area) | Appalachian Basin | Medina-Clinton-Tuscarora | Cincinnati Arch | Marcellus |
|---|---|---|---|---|---|---|
| 2026 | 48.3% | 24.8% | 20.5% | 1.8% | 3.9% | — |
| 2025 | 49.4% | 32.1% | 13.2% | 3.6% | 1.3% | — |
| 2024 | 52.5% | 24.5% | 15.2% | 5.9% | 1.9% | — |
| 2023 | 3.6% | 70.8% | 25.7% | — | — | — |
| 2022 | 7.9% | 70.8% | 20.1% | — | — | — |
| 2021 | 81.2% | 6.4% | 2.6% | 8.2% | 0.7% | 0.9% |
| 2020 | 92.8% | 1.5% | — | 4.5% | — | — |
| 2019 | 89.9% | — | 1.6% | 4.8% | 1.6% | 1.6% |
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: 2026-11-06. These figures are informational only and are not a valuation of any mineral or royalty interest.
The Appalachian Basin - (Eastern Overthrust Area) is a formation/play group recorded in Ohio, with 1,051 wells on file across 31 distinct operators of record. Operators have filed 382 drilling permits targeting the Appalachian Basin - (Eastern Overthrust Area) 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.
1,051 wells target the Appalachian Basin - (Eastern Overthrust Area) in Ohio, worked by 31 recorded operators, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-11-06.
The Appalachian Basin - (Eastern Overthrust Area) operators with the most wells on record in Ohio are Ascent Resourcesmarcellus, EOG Ohio, LLC, Gulfport Appalachia, EOG Resources and Hilcorp Energy Company. The full ranking is in the table on this page. Formation summary date: 2026-11-06.
Operators filed 382 drilling permits targeting the Appalachian Basin - (Eastern Overthrust Area) 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 382 new drilling permits targeting the Appalachian Basin - (Eastern Overthrust Area) in Ohio 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.
Appalachian Basin - (Eastern Overthrust Area) activity in Ohio includes 1,051 wells on record and 31 recorded operators, with 382 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 Appalachian Basin - (Eastern Overthrust Area) in Ohio are Monroe, Belmont, Harrison, Columbiana, Carroll. 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.
Get a free written offer based on your specific tract, operator, and the current Appalachian Basin - (Eastern Overthrust Area) activity in your area.
Get Your Free Written OfferFormation: Appalachian Basin - (Eastern Overthrust Area)
State: Ohio
Total wells: 1,051
Recorded operators: 31
Permits 24mo: 382
Summary date: 2026-11-06
Free written offers on Appalachian Basin - (Eastern Overthrust Area) mineral rights in Ohio.
Get Your Free Offer