| 201 | Standby Farms | Louisville, OH 44641 | Oil & Gas Operator | Dec 2025 |
| 202 | Stocker & Sitler Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 2002 |
| 203 | Stonebridge Operating Co LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 204 | Sutton Enterprises Inc | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 1996 |
| 205 | The East Ohio Gas Company Dba Enbridge Gas Ohio | North Canton, OH 44720 | Oil & Gas Operator | Dec 2025 |
| 206 | Tiger Oil, Inc. | Canal Wincheste, OH 43110 | Oil & Gas Operator | Dec 2007 |
| 207 | Tipka Energy Devlopment Company | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 2020 |
| 208 | Tipka William N | Dover, OH 44622 | Oil & Gas Operator | Dec 1988 |
| 209 | TLC Oil LLC | Holmesville, OH 44633 | Oil & Gas Operator | Dec 2024 |
| 210 | Transit Energy Inc | North Lawrence, OH 44666 | Oil & Gas Operator | Dec 2025 |
| 211 | Trumbull Resources | Mineral Ridge, OH 44440 | Oil & Gas Operator | Dec 2016 |
| 212 | United O&G/Atlee Miller | Millersburg, OH 44654 | Oil & Gas Operator | Dec 1985 |
| 213 | Unknown Owner | Columbus, OH 43229 | Oil & Gas Operator | Dec 2008 |
| 214 | Vanguard Oil & Gas LLC | East Lansing, MI 48826 | Oil & Gas Operator | Dec 2024 |
| 215 | Vaught Bill D Dba Vaught Oil Company | Akron, OH 44319 | Oil & Gas Operator | Dec 2024 |
| 216 | Viking Resources LLC | Uniontown, OH 44685 | Oil & Gas Operator | Dec 2017 |
| 217 | W P Brown Enterprises Inc | Byesville, OH 43723 | Oil & Gas Operator | Dec 2025 |
| 218 | Waddy & Son Oilfield Services Inc | Dellroy, OH 44620-9762 | Oil & Gas Operator | Dec 2025 |
| 219 | Waldron David A | Wooster, OH 44691 | Oil & Gas Operator | Dec 2003 |
| 220 | Waterco Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 221 | Weber Paul A | N Canton, OH 44720 | Oil & Gas Operator | Dec 1994 |
| 222 | Weinsz Oil & Gas Inc | North Canton, OH 44720 | Oil & Gas Operator | Dec 2003 |
| 223 | Western Hemisphere Group | Buffalo, NY 14218 | Oil & Gas Operator | Dec 1993 |
| 224 | White Energy Inc | Berlin Center, OH 44401 | Oil & Gas Operator | Dec 2016 |
| 225 | William S Miller Inc | Hanoverton, OH 44423 | Oil & Gas Operator | Dec 2025 |
| 226 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 227 | Witco Corporation | Newark, OH 43055 | Oil & Gas Operator | Dec 1995 |
| 228 | WM Oil & Gas Inc | Canton, OH 44721 | Oil & Gas Operator | Dec 2018 |
| 229 | WNT Operating Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2001 |
| 230 | Yei Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 231 | Zenith Exploration Co Inc | Washington, PA 15301 | Oil & Gas Operator | Dec 2014 |