1,031 wells across 32 active operators, with 378 drilling permits filed in the last 24 months.
Refreshed monthly from ODNR well-header records. Data current as of 2026-08-25.
Quick answer: The Appalachian Basin - (Eastern Overthrust Area) formation in Ohio has 1,031 wells on record across 32 active operators, with 378 drilling permits filed in the last 24 months (as of 2026-08-25). Its most active operators by well count are Ascent Resourcesmarcellus, EOG Ohio, LLC, Gulfport Appalachia, EOG Resources and Hilcorp Energy Company. Compiled from Ohio Department of Natural Resources (ODNR) well-header records, refreshed monthly.
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 | 274 |
| 2 | Eog Ohio, LLC | 244 |
| 3 | Gulfport Appalachia | 141 |
| 4 | Eog Resources | 106 |
| 5 | Hilcorp Energy Company | 82 |
| 6 | Expand Operating LLC | 55 |
| 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
The most recent 100 drilling permits filed for Appalachian Basin - (Eastern Overthrust Area) wells in Ohio:
| Permit Date | Well | API | County | Operator | Lateral (ft) |
|---|---|---|---|---|---|
| 2026-08-11 | Mcfrederick H Up Blt 11h | 34013216920000 |
Belmont | Expand Operating LLC | — |
| 2026-08-11 | Hww Hst 2b | 34067219030000 |
Harrison | Eog | — |
| 2026-08-11 | Hww Hst 8a | 34067219060000 |
Harrison | Eog | — |
| 2026-08-11 | Hww Hst 204b | 34067219040000 |
Harrison | Eog | — |
| 2026-08-11 | Mcfrederick E Up Blt 3h | 34013216900000 |
Belmont | Expand Operating LLC | — |
| 2026-08-11 | Mcfrederick H Up Blt 9h | 34013216910000 |
Belmont | Expand Operating LLC | — |
| 2026-08-11 | Hww Hst 206a | 34067219050000 |
Harrison | Eog | — |
| 2026-08-10 | Sharp E Whl Bl 4h | 34013216880000 |
Belmont | Ascent Resourcesmarcellus | — |
| 2026-08-10 | Sharp W Whl Bl 2h | 34013216870000 |
Belmont | Ascent Resourcesmarcellus | — |
| 2026-08-10 | Sharp E Whl Bl 6h | 34013216890000 |
Belmont | Ascent Resourcesmarcellus | — |
| 2026-07-17 | Bertram Nw Lnd Gr 1h | 34059247630000 |
Guernsey | Ascent Resourcesmarcellus | — |
| 2026-07-17 | Bertram N Lnd Gr 3h | 34059247640000 |
Guernsey | Ascent Resourcesmarcellus | — |
| 2026-07-10 | Sloan 211991 1a | 34111250420000 |
Monroe | Gulfport Appalachia | — |
| 2026-07-10 | Sloan 210605 3a | 34111250440000 |
Monroe | Gulfport Appalachia | — |
| 2026-07-10 | Sloan 211892 2a | 34111250430000 |
Monroe | Gulfport Appalachia | — |
| 2026-07-07 | Mcfrederick E Up Blt 5h | 34013216850000 |
Belmont | Expand Operating LLC | — |
| 2026-07-07 | Mcfrederick G Up Blt 7h | 34013216860000 |
Belmont | Expand Operating LLC | — |
| 2026-06-26 | Lloyd Smith Cor 1b | 34019229820000 |
Carroll | Eog | — |
| 2026-06-26 | Lloyd Smith Cor 7c | 34019229850000 |
Carroll | Eog | — |
| 2026-06-26 | Lloyd Smith Cor 205c | 34019229840000 |
Carroll | Eog | — |
| 2026-06-26 | Lloyd Smith Cor 203b | 34019229830000 |
Carroll | Eog | — |
| 2026-06-12 | Mckeegan 212069 6a-M | 34013216830000 |
Belmont | Gulfport Appalachia | — |
| 2026-06-12 | Mckeegan 212068 7a-M | 34013216840000 |
Belmont | Gulfport Appalachia | — |
| 2026-05-27 | Sylvester Antolak D 5h | 34013216820000 |
Belmont | Grenadier Energy Iii LLC | — |
| 2026-05-27 | Sylvester Antolak A 1h | 34013216780000 |
Belmont | Grenadier Energy Iii LLC | — |
| 2026-05-27 | Sylvester Antolak A 2h | 34013216790000 |
Belmont | Grenadier Energy Iii LLC | — |
| 2026-05-27 | Sylvester Antolak B 3h | 34013216800000 |
Belmont | Grenadier Energy Iii LLC | — |
| 2026-05-27 | Sylvester Antolak C 4h | 34013216810000 |
Belmont | Grenadier Energy Iii LLC | — |
| 2026-05-18 | Sadler W Shc Hr 3h | 34067218970000 |
Harrison | Ascent Resourcesmarcellus | — |
| 2026-05-18 | Sadler N Shc Hr 5h | 34067218980000 |
Harrison | Ascent Resourcesmarcellus | — |
| 2026-05-18 | Sadler Nw Shc Hr 1h | 34067218960000 |
Harrison | Ascent Resourcesmarcellus | — |
| 2026-04-30 | Reed 212074 3a | 34013216770000 |
Belmont | Gulfport Appalachia | — |
| 2026-04-28 | Reed 210259 2a | 34013216760000 |
Belmont | Gulfport Appalachia | — |
| 2026-04-28 | Reed 210260 1a | 34013216750000 |
Belmont | Gulfport Appalachia | — |
| 2026-04-21 | Withey Ne Wrn Bl 5h | 34013216730000 |
Belmont | Ascent Resourcesmarcellus | — |
| 2026-04-21 | Withey Ne Wrn Bl 7h | 34013216740000 |
Belmont | Ascent Resourcesmarcellus | — |
| 2026-04-21 | Withey Nw Wrn Bl 3h | 34013216720000 |
Belmont | Ascent Resourcesmarcellus | — |
| 2026-04-21 | Withey Nw Wrn Bl 1h | 34013216710000 |
Belmont | Ascent Resourcesmarcellus | — |
| 2026-04-07 | Cena Ne Wyn Jf 5h | 34081210380000 |
Jefferson | Ascent Resourcesmarcellus | — |
| 2026-04-07 | Cena Nw Wyn Jf 3h | 34081210370000 |
Jefferson | Ascent Resourcesmarcellus | — |
| 2026-04-07 | Cena Nw Wyn Jf 1h | 34081210360000 |
Jefferson | Ascent Resourcesmarcellus | — |
| 2026-03-30 | Charley N Ath Hr 3h | 34067218940000 |
Harrison | Ascent Resourcesmarcellus | — |
| 2026-03-30 | Charley N Ath Hr 1h | 34067218930000 |
Harrison | Ascent Resourcesmarcellus | — |
| 2026-03-30 | Charley W Ath Hr 14h | 34067218950000 |
Harrison | Ascent Resourcesmarcellus | — |
| 2026-03-12 | Walters 30-12-5 4rd | 34019229340000 |
Carroll | Eog Ohio LLC | — |
| 2026-03-12 | Walters 30-12-5 2rd | 34019229330000 |
Carroll | Eog Ohio LLC | — |
| 2026-03-03 | The Wright Way Cbr 204a | 34019229620000 |
Carroll | Eog Ohio LLC | — |
| 2026-03-03 | The Wright Way Cbr 208b | 34019229640000 |
Carroll | Eog Ohio LLC | — |
| 2026-03-03 | The Wright Way Cbr 10b | 34019229650000 |
Carroll | Eog Ohio LLC | — |
| 2026-03-03 | The Wright Way Cbr 2a | 34019229610000 |
Carroll | Eog Ohio LLC | — |
The Appalachian Basin - (Eastern Overthrust Area) is one of Ohio's active oil and gas plays, with 1,031 wells on file across 32 distinct operators of record. Operators have filed 378 drilling permits targeting the Appalachian Basin - (Eastern Overthrust Area) 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 Monroe, Belmont, Harrison, Columbiana, Carroll, knowing whether your tract sits within an active Appalachian Basin - (Eastern Overthrust Area) 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 Ohio oil & gas formations & plays · Download the Ohio formations dataset (CSV)
1,031 wells target the Appalachian Basin - (Eastern Overthrust Area) in Ohio, worked by 32 active operators, per ODNR well-header records (as of 2026-08-25).
By well count, the most active Appalachian Basin - (Eastern Overthrust Area) operators 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.
Operators filed 378 drilling permits targeting the Appalachian Basin - (Eastern Overthrust Area) in the last 24 months — a live measure of current activity, per ODNR records.
Operators filed 378 new drilling permits targeting the Appalachian Basin - (Eastern Overthrust Area) in Ohio over the last 24 months. New permits and spuds are the clearest signal of active Appalachian Basin - (Eastern Overthrust Area) drilling, per ODNR records (as of 2026-08-25).
Appalachian Basin - (Eastern Overthrust Area) activity in Ohio currently spans 1,031 wells on record and 32 active operators, led by Ascent Resourcesmarcellus, EOG Ohio, LLC, Gulfport Appalachia, EOG Resources and Hilcorp Energy Company, with 378 drilling permits filed in the last 24 months — refreshed monthly from Ohio Department of Natural Resources (ODNR) well-header records (as of 2026-08-25).
The most active Appalachian Basin - (Eastern Overthrust Area) counties in Ohio are Monroe, Belmont, Harrison, Columbiana, Carroll.
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 Appalachian Basin - (Eastern Overthrust Area) 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
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.
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Formation: Appalachian Basin - (Eastern Overthrust Area)
State: Ohio
Total wells: 1,031
Active operators: 32
Permits 24mo: 378
Last refresh: 2026-08-25
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