The largest oil and gas operators active in Ohio — ranked by total well count, with recent drilling activity, DUC inventory, and producing-well counts for each. Click any operator to see their full profile and current permits.
Refreshed monthly from ODNR well-header records. Data current as of 2026-08-19.
Quick answer: By wells operated, Ows Acquisition Co. LLC is the largest oil and gas operator in Ohio with 5,622 wells on record, followed by Diversified Production LLC (4,708) and Eco Power Crypto LLC (2,382). Ranked from Ohio Department of Natural Resources (ODNR) well-header records (as of 2026-08-19) and refreshed monthly. This is an operated-well-count ranking, not a revenue or market-cap ranking.
As of 2026-08-19, the most active operator in Ohio is Ows Acquisition CO LLC with 5,622 wells on record and 11 recent permits, across the top 100 ranked operators, per Ohio Department of Natural Resources (ODNR) records.
| # | Operator | Wells | Permits 24mo | DUCs | Producing | Top Formation | Top County |
|---|---|---|---|---|---|---|---|
| 1 | Ows Acquisition CO LLC | 5,622 | 11 | 19 | 5,595 | Utica | Stark |
| 2 | Diversified Production LLC | 4,708 | 27 | 16 | 4,691 | Utica | Coshocton |
| 3 | Eco Power Crypto LLC | 2,382 | 0 | 16 | 2,362 | Utica | Muskingum |
| 4 | Oxford Oil | 1,722 | 0 | 407 | 1,064 | Utica | Muskingum |
| 5 | Kenoil | 1,631 | 0 | 120 | 1,437 | Utica | Perry |
| 6 | Northwood Energy | 1,629 | 6 | 31 | 1,586 | Utica | Noble |
| 7 | Eog Ohio, LLC | 1,247 | 123 | 32 | 1,170 | Utica | Carroll |
| 8 | Petrox | 1,224 | 0 | 37 | 1,164 | Utica | Ashtabula |
| 9 | Ascent Resourcesmarcellus | 1,188 | 131 | 60 | 1,017 | Utica | Belmont |
| 10 | Pin Oak Energy Partners | 1,173 | 1 | 10 | 1,158 | Utica | Washington |
| 11 | Cgas Exploration | 1,127 | 0 | 277 | 358 | Utica | Ashtabula |
| 12 | Stonebridge Operating Company | 1,090 | 0 | 24 | 985 | Utica | Washington |
| 13 | J D Drilling Company | 1,018 | 0 | 81 | 627 | Utica | Meigs |
| 14 | Knox Energy | 961 | 0 | 59 | 853 | Utica | Licking |
| 15 | Everflow Eastern Ptns | 946 | 2 | 21 | 852 | Utica | Mahoning |
| 16 | Belden And Blake CORP Dba Ward Lake Energy | 827 | 0 | 213 | 350 | Utica | Stark |
| 17 | Eric Petroleum | 761 | 0 | 1 | 753 | Utica | Mahoning |
| 18 | Amtek Oil | 746 | 0 | 5 | 740 | Utica | Athens |
| 19 | Mfc Drilling | 745 | 7 | 45 | 636 | Utica | Medina |
| 20 | Rhdk Oil & Gas LLC/Dba Red Hil | 716 | 1 | 7 | 681 | Utica | Tuscarawas |
| 21 | Enervest Operating | 712 | 0 | 67 | 521 | Utica | Stark |
| 22 | Quaker State Oil Ref | 660 | 0 | 208 | 368 | Utica | Hocking |
| 23 | Bocor Holdings LLC/Bocor Production | 654 | 0 | 43 | 556 | Utica | Geauga |
| 24 | Chesapeake Energy | 634 | 0 | 142 | 40 | Utica | Carroll |
| 25 | Sound Energy | 626 | 2 | 7 | 616 | Utica | Tuscarawas |
| 26 | Harley Drilling & Producing | 608 | 1 | 50 | 531 | Utica | Ashland |
| 27 | Gulfport Appalachia | 577 | 57 | 28 | 502 | Utica | Belmont |
| 28 | Atwood Energy | 507 | 0 | 67 | 126 | Utica | Ashtabula |
| 29 | Bakerwell | 505 | 0 | 95 | 290 | Utica | Holmes |
| 30 | Yei | 502 | 0 | 42 | 84 | Utica | Stark |
| 31 | Chevron | 482 | 0 | 64 | 129 | Utica | Tuscarawas |
| 32 | Huffmanbowers | 478 | 0 | 13 | 462 | Medina-Clinton-Tuscarora | Gallia |
| 33 | R C Poling | 452 | 0 | 95 | 320 | Utica | Perry |
| 34 | Ngo Development | 442 | 0 | 47 | 335 | Utica | Coshocton |
| 35 | Buckeye Oil Producing Company | 438 | 3 | 48 | 374 | Utica | Holmes |
| 36 | Heinrich Enterprises INC Dba Washington Operations | 436 | 0 | 5 | 420 | Utica | Washington |
| 37 | Petro Quest | 428 | 0 | 8 | 415 | Utica | Athens |
| 38 | Viking Resources | 420 | 0 | 53 | 101 | Utica | Lake |
| 39 | Enterprise Energy | 417 | 0 | 116 | 14 | Utica | Guernsey |
| 40 | Cameron Production | 415 | 0 | 18 | 387 | Utica | Muskingum |
| 41 | Artex Oil Company | 413 | 4 | 61 | 321 | Utica | Tuscarawas |
| 42 | Dorfman Production Company | 408 | 1 | 1 | 399 | Utica | Mahoning |
| 43 | David R Hill | 405 | 3 | 42 | 331 | Utica | Guernsey |
| 44 | Graymarr LLC | 403 | 0 | 4 | 395 | Utica | Monroe |
| 45 | Hopewell Oil & Gas Development | 402 | 0 | 73 | 171 | Utica | Muskingum |
| 46 | Jerry Moore | 400 | 0 | 205 | 89 | Utica | Coshocton |
| 47 | Green Collar Energy, LLC | 399 | 2 | 2 | 397 | Utica | Coshocton |
| 48 | Franklin Gas & Oil | 394 | 0 | 86 | 295 | Utica | Wayne |
| 49 | Lake Region Oil | 385 | 0 | 16 | 346 | Utica | Holmes |
| 50 | Range Operating Company | 384 | 0 | 64 | 147 | Utica | Geauga |
| 51 | Hetuck Oil And Gas Company | 383 | 0 | 1 | 382 | Utica | Summit |
| 52 | Kilbarger Investments | 382 | 0 | 18 | 345 | Medina-Clinton-Tuscarora | Hocking |
| 53 | Deep Resources | 354 | 0 | 38 | 312 | Utica | Ashland |
| 54 | James R Smail | 353 | 0 | 61 | 80 | Utica | Wayne |
| 55 | Equity Oil & Gas Funds In | 352 | 0 | 34 | 311 | Utica | Portage |
| 56 | Zilkha Energy | 349 | 0 | 109 | 41 | Utica | Guernsey |
| 57 | J Well Service | 347 | 0 | 1 | 345 | Utica | Trumbull |
| 58 | Maram Energy Company | 346 | 4 | 25 | 298 | Utica | Knox |
| 59 | Stevens Oil & Gas | 343 | 0 | 5 | 336 | Utica | Monroe |
| 60 | Gr Contracting | 342 | 1 | 8 | 317 | Utica | Monroe |
| 61 | Range Resources | 341 | 0 | 31 | 83 | Utica | Stark |
| 62 | Benatty | 341 | 0 | 76 | 72 | Utica | Morgan |
| 63 | Ohio Valley Energy Systems CORP | 325 | 0 | 10 | 298 | Utica | Mahoning |
| 64 | King Drilling Company | 322 | 1 | 56 | 250 | Utica | Medina |
| 65 | Exco North Coast Energy | 322 | 0 | 25 | 193 | Utica | Muskingum |
| 66 | Noble Energy | 320 | 0 | 94 | 103 | Utica | Portage |
| 67 | Antero Resources | 315 | 3 | 33 | 242 | Utica | Noble |
| 68 | B & J Drilling Company | 315 | 2 | 60 | 235 | Utica | Knox |
| 69 | Appalachian Exploration | 306 | 0 | 34 | 31 | Utica | Medina |
| 70 | D & D Energy Company | 291 | 0 | 1 | 290 | Utica | Stark |
| 71 | Bakerwell Serv Rigs | 289 | 0 | 44 | 3 | Utica | Cuyahoga |
| 72 | Busted Knuckle Oil & Gas LLC | 287 | 0 | 0 | 287 | Utica | Ashtabula |
| 73 | Altheirs Oil | 285 | 0 | 84 | 148 | Utica | Perry |
| 74 | Eco Production | 285 | 0 | 1 | 284 | Utica | Carroll |
| 75 | Mutual Oil & Gas Company | 284 | 0 | 103 | 77 | Utica | Tuscarawas |
| 76 | Clarence K Tussel Jr | 275 | 0 | 0 | 275 | Utica | Ashtabula |
| 77 | Rice Drilling B | 275 | 3 | 22 | 210 | Utica | Belmont |
| 78 | Expand Operating LLC | 272 | 20 | 10 | 247 | Utica | Monroe |
| 79 | G & O Resources | 271 | 0 | 2 | 267 | Utica | Medina |
| 80 | Mainspring | 270 | 0 | 2 | 268 | Utica | Tuscarawas |
| 81 | Genesis Resources | 266 | 0 | 1 | 261 | Utica | Monroe |
| 82 | Mb Operating | 263 | 0 | 33 | 141 | Utica | Stark |
| 83 | Edco Drilling & Producing | 254 | 0 | 94 | 46 | Utica | Coshocton |
| 84 | Valley Petroleum Management | 254 | 0 | 17 | 232 | Utica | Knox |
| 85 | Brick Service And Sales INC | 252 | 0 | 0 | 252 | Utica | Muskingum |
| 86 | Summit Petroleum | 250 | 1 | 6 | 210 | Utica | Summit |
| 87 | Hopco Resources | 245 | 0 | 29 | 158 | Utica | Coshocton |
| 88 | Mason Drilling | 244 | 1 | 37 | 182 | Utica | Holmes |
| 89 | Jadoil INC D Vernau | 243 | 0 | 115 | 40 | Utica | Coshocton |
| 90 | Fawn Resources | 238 | 0 | 77 | 124 | Utica | Ashland |
| 91 | Atlas Energy Corporation Del | 236 | 0 | 52 | 19 | Utica | Trumbull |
| 92 | Moran Ronald F | 234 | 0 | 51 | 160 | Utica | Licking |
| 93 | William S Miller | 233 | 0 | 3 | 220 | Utica | Stark |
| 94 | Derrick Petroleum | 227 | 0 | 22 | 189 | Utica | Coshocton |
| 95 | 4m Enterprise | 227 | 0 | 3 | 224 | Medina-Clinton-Tuscarora | Lawrence |
| 96 | Eos Energy LLC | 226 | 0 | 5 | 221 | Utica | Morrow |
| 97 | Green Gas Company | 225 | 1 | 45 | 156 | Utica | Noble |
| 98 | Eagle Drilling | 225 | 0 | 0 | 225 | Utica | Noble |
| 99 | Kst Oil & Gas | 224 | 0 | 18 | 62 | Utica | Summit |
| 100 | Elkhead Gas & Oil Company | 223 | 0 | 23 | 180 | Utica | Knox |
Source: Ohio Department of Natural Resources well-header records.
Ranking: Operators ranked by total well count under their current operator-of-record. Recent permits cover the last 24 months; DUC count is wells spudded but not yet producing; producing-well count is wells with a first-production date on file.
Why it matters: Knowing who operates the most wells in Ohio — and who's drilling the most NOW — helps mineral owners understand who they're dealing with at the lease level.
Refresh cadence: Monthly. Data current as of 2026-08-19.
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.
By wells operated, Ows Acquisition Co. LLC is the largest oil and gas operator in Ohio, with 5,622 wells on record per Ohio Department of Natural Resources (ODNR) data. Note that "biggest" by revenue or market capitalization can rank differently — this measures operated well count.
The top 10 operators by operated well count are: Ows Acquisition Co. LLC, Diversified Production LLC, Eco Power Crypto LLC, Oxford Oil, Kenoil, Northwood Energy, EOG Ohio, LLC, Petrox, Ascent Resourcesmarcellus, Pin Oak Energy Partners. The full top-100 ranking with permits, DUC inventory, and producing-well counts is in the leaderboard below.
Ows Acquisition Co. LLC operates the most wells in Ohio at 5,622, with 11 permits filed in the last 24 months, per ODNR well-header records.
This leaderboard ranks the top 100 operators active in Ohio by total well count. Many more file with the regulator; these are the largest by operated wells.
By wells operated — the count of wells under each company's current operator-of-record designation in Ohio Department of Natural Resources (ODNR) records. It is not a revenue, production-volume, or market-capitalization ranking.
Whether your operator is on this list or not, your Ohio mineral interest may be more valuable than you think. Get a free, no-obligation written offer.
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State: Ohio
Operators ranked: 100
Total wells: 60,180
Permits (24mo): 419
Last refresh: 2026-08-19