(817) 778-9532

Ohio Formations & Plays Directory

Every active oil and gas formation and play in Ohio — Utica, Point Pleasant, Marcellus, Clinton, Mississippi Lime, Cherokee Platform, Hunton, Granite Wash, and more — ranked by well count, with the top operators and primary counties for each.

Refreshed monthly from ODNR well records. Data current as of 2026-07-26.

Active Formations
10
Total Wells
124,009
Total Lateral
7,688 miles
Recent Permits (24mo)
784

Utica

109,016 wells 7,802 active operators 5,274 miles of lateral 219 permits (24mo)

Top Operators:

Ows Acquisition CO LLC (5,606), Diversified Production LLC (4,684), Eco Power Crypto LLC (2,262), Oxford Oil (1,430), Kenoil (1,349), Northwood Energy (1,301), Columbia Gas Transmission (1,262), Petrox (1,175), Pin Oak Energy Partners (1,147), Stonebridge Operating Company (1,069)

Primary counties: Washington, Monroe, Muskingum, Licking, Coshocton

Medina-Clinton-Tuscarora

10,154 wells 864 active operators 31 miles of lateral 4 permits (24mo)

Top Operators:

Columbia Gas Transmission (1,485), Huffmanbowers (371), Kilbarger Investments (365), Quaker State Oil Ref (325), Oxford Oil (272), Kenoil (271), 4m Enterprise (214), J D Drilling Company (155), R C Poling (154), Bell Oil (138)

Primary counties: Hocking, Perry, Fairfield, Vinton, Ashland

Cincinnati Arch

1,862 wells 372 active operators 2 miles of lateral 0 permits (24mo)

Top Operators:

Landowner Grant Program 2005 (102), Frantz Enterprises (83), Nieset Lawrence & Christ (75), J & J Operating (55), A S Energy (49), Rockwell Oil Company (48), Bakerwell Serv Rigs (42), Belden And Blake CORP Dba Ward Lake Energy (41), Harmeyer Richard G (39), Second Oil (39)

Primary counties: Hancock, Allen, Auglaize, Wood, Seneca

Appalachian Basin - (Eastern Overthrust Area)

1,011 wells 32 active operators 1,780 miles of lateral 377 permits (24mo)

Top Operators:

Ascent Resourcesmarcellus (268), Eog Ohio, LLC (244), Gulfport Appalachia (141), Eog Resources (96), Hilcorp Energy Company (82), Expand Operating LLC (52), Rice Drilling B (32), Inr Ohio LLC (24), Diversified Production LLC (11), Grenadier Energy Iii, LLC (7)

Primary counties: Monroe, Belmont, Harrison, Columbiana, Washington

Appalachian Basin

757 wells 154 active operators 550 miles of lateral 182 permits (24mo)

Top Operators:

Ascent Resourcesmarcellus (82), Inr Ohio LLC (75), Eog Ohio, LLC (67), Eog Resources (53), Houghton Investments (20), Hocking Hills Energy And Well Service LLC (18), Chuck Henry Energy (17), Ohio Energy Assets (16), Mfc Drilling (15), Chesapeake Energy (14)

Primary counties: Morgan, Noble, Guernsey, Pickaway, Medina

Devonian (Ohio)

525 wells 178 active operators 0 miles of lateral 0 permits (24mo)

Top Operators:

Franklin Gas & Oil (47), Orphan Well Program (29), Maj (19), Range Resources (16), River Valley Energy (14), Shafer David Oil Production (11), R C Poling (11), Eco Power Crypto LLC (11), Red Bird Producing Company (10), Oxford Oil (10)

Primary counties: Richland, Scioto, Huron, Pike, Crawford

Michigan Basin

259 wells 46 active operators 0 miles of lateral 0 permits (24mo)

Top Operators:

Grahammichaelis (74), Pioneer Drilling Company (56), Northern Indiana Producer (26), Oge Energy (12), Belden And Blake CORP Dba Ward Lake Energy (10), Fitzgerald Energy Produc (8), Dusty Drilling (6), Fulton Energy (5), Frantz Enterprises (5), Aurora Energy (4)

Primary counties: Henry, Lucas, Paulding, Defiance, Fulton

Marcellus

191 wells 33 active operators 50 miles of lateral 2 permits (24mo)

Top Operators:

J D Drilling Company (93), Gulfport Appalachia (21), Appalachian Exploration (14), Equity Oil & Gas Funds In (13), Amtek Oil (4), Ascent Resourcesmarcellus (4), Wood & Locker (3), Kst Oil & Gas (3), Jadoil INC D Vernau (3), Gulfport Energy (3)

Primary counties: Jefferson, Meigs, Belmont

Berea-Murrysville

165 wells 62 active operators 0 miles of lateral 0 permits (24mo)

Top Operators:

Maj (20), Energy Resource Technology Gom (18), Cemco Operating (14), Tristar Petroleum Resourc (11), Coshocton Pipe Company (8), Manitou Explor (7), Cgas Exploration (6), Burlington Resources Oil & Gas Company (5), Northeast Natural Energy (5), Petro Evaluation Serv (5)

Primary counties: Scioto, Jackson, Morrow, Richland, Pike

Antrim

69 wells 13 active operators 0 miles of lateral 0 permits (24mo)

Top Operators:

Fulton Energy (22), Don Yohe Enterprises (11), Frantz Enterprises (7), Total Petroleum (6), Savoy Energy (4), Haupricht Gene F (4), Aurora Energy (4), Quicksilver Resources (3), Trendwell Energy (3), Columbia Gas Transmission (2)

Primary counties: Fulton, Williams

About This Data

Source: Ohio Department of Natural Resources well-header records, aggregated by primary play / interpreted formation / basin.

Threshold: Only formations with at least 50 wells are listed (excludes one-off wildcat plays).

Why it matters: Knowing which formation underlies your tract — and which operators are actively drilling that formation — is the foundation of mineral-rights valuation. Stacked plays (Utica/Point Pleasant Marcellus + Mississippian) carry materially different upside than single-bench mature plays.

Refresh cadence: Monthly. Data current as of 2026-07-26.

Know What Formation Underlies Your Ohio Minerals?

The geology under your tract drives your valuation. Get a free written offer based on your specific formation and county.

Get Your Free Mineral Valuation

Quick Stats

State: Ohio

Active formations: 10

Total wells: 124,009

Recent permits: 784

Last refresh: 2026-07-26

Ready to Sell?

Free written offers on Ohio mineral rights — across every active formation.

Get Your Free Offer