| 201 | Sparta Energy Corp | Oak Brook, IL 60521 | Oil & Gas Operator | Dec 1985 |
| 202 | Spring Industries Inc | Wellington, FL 33414 | Oil & Gas Operator | Dec 2016 |
| 203 | Stocker & Sitler Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 2002 |
| 204 | Stocker Sand & Gravel Co | Gnadenhutten, OH 44629 | Oil & Gas Operator | Dec 2024 |
| 205 | Stone Creek Brick Co | Stone Creek, OH 43840 | Oil & Gas Operator | Dec 2004 |
| 206 | Stonebridge Operating Co LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 207 | Sutton Enterprises Inc | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 1996 |
| 208 | T B Drilling Co | Moxahala, OH 43761 | Oil & Gas Operator | Dec 1998 |
| 209 | Tipka Bartlo Oil & Gas Co | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 1988 |
| 210 | Tipka Energy Devlopment Company | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 2020 |
| 211 | Tipka William N | Dover, OH 44622 | Oil & Gas Operator | Dec 1988 |
| 212 | Titan Energy Corp | Thomasville, AL 36784 | Oil & Gas Operator | Aug 2009 |
| 213 | Transfuel Resources Co | Houston, TX 77215 | Oil & Gas Operator | Aug 2013 |
| 214 | Unger Well Drilling Corp | Dennison, OH 44621 | Oil & Gas Operator | Dec 1999 |
| 215 | Union Camp Corp | Dover, OH 44622 | Oil & Gas Operator | Dec 2002 |
| 216 | Unknown Owner | Columbus, OH 43229 | Oil & Gas Operator | Dec 2008 |
| 217 | Vanguard Oil & Gas LLC | East Lansing, MI 48826 | Oil & Gas Operator | Dec 2024 |
| 218 | Viking Resources LLC | Uniontown, OH 44685 | Oil & Gas Operator | Dec 2017 |
| 219 | W P Brown Enterprises Inc | Byesville, OH 43723 | Oil & Gas Operator | Dec 2024 |
| 220 | Waldron David A | Wooster, OH 44691 | Oil & Gas Operator | Dec 2003 |
| 221 | Wayne Hammond Enterprises Inc | Bolivar, OH 44612 | Oil & Gas Operator | Dec 2024 |
| 222 | Weinsz Oil & Gas Inc | North Canton, OH 44720 | Oil & Gas Operator | Dec 2003 |
| 223 | William S Miller Inc | Hanoverton, OH 44423 | Oil & Gas Operator | Dec 2024 |
| 224 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 225 | WNT Operating Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2001 |
| 226 | Wood Charles L | Akron, OH 44320 | Oil & Gas Operator | Dec 1990 |
| 227 | Yei Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 228 | Zenith Exploration Co Inc | Washington, PA 15301 | Oil & Gas Operator | Dec 2014 |
| 229 | Zink Petroleum Corp | Uniontown, OH 44685 | Oil & Gas Operator | Dec 1993 |