| 201 | Quadrant Exploration, Inc. | Marietta, OH 45750 | Oil & Gas Operator | Dec 2000 |
| 202 | Quaker State Oil Ref Corp | North Canton, OH 44720-1541-1541 | Oil & Gas Operator | Dec 1994 |
| 203 | R C Poling Co Inc | Junction City, OH 43748 | Oil & Gas Operator | Dec 2023 |
| 204 | Range Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2000 |
| 205 | Reliance Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 206 | Reliance Oil Corp | Charlottesville, VA 22906 | Oil & Gas Operator | Dec 1988 |
| 207 | Reserve Exploration Co. | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2007 |
| 208 | Ridge Oil And Gas Inc | Zanesville, OH 43702-2534-2534 | Oil & Gas Operator | Dec 2023 |
| 209 | Roulette Energy LLC | Canal Wincheste, OH 43110 | Oil & Gas Operator | Dec 2021 |
| 210 | RPJ Fund Management Inc | St. Paul, MN 55101 | Oil & Gas Operator | Dec 1991 |
| 211 | Ruffner Petroleum Corp | Akron, OH 44308 | Oil & Gas Operator | Dec 2000 |
| 212 | Russell E Snider LLC | Newark, OH 43055 | Oil Operator | Dec 2023 |
| 213 | S & S Oil Company | Electra, TX 76360 | Oil & Gas Operator | Apr 2024 |
| 214 | Salt Creek JT Venture | Pittsburgh, PA 15219-2702-2702 | Oil & Gas Operator | Dec 1986 |
| 215 | Schmelzer Mark | Rushville, OH 43150 | Oil & Gas Operator | Dec 2007 |
| 216 | Schmelzer Maurice | Bremen, OH 43107 | Oil & Gas Operator | Dec 2023 |
| 217 | Schmelzer Plugging LLC | Bremen, OH 43107 | Oil & Gas Operator | Dec 2023 |
| 218 | Shrider W E Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1991 |
| 219 | Smith C/Dba Sandy Supply | North FT Myers, FL 33903 | Oil & Gas Operator | Dec 1988 |
| 220 | Smith Ronald Dba Chipco | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2023 |
| 221 | Snider Brothers | Gratiot, OH 43740 | Oil & Gas Operator | Dec 2015 |
| 222 | Snider Russell E | Newark, OH 43055 | Oil & Gas Operator | Dec 2014 |
| 223 | Southern Triangle Oil Co | MT Carmel, IL 62863 | Oil & Gas Operator | Dec 2022 |
| 224 | St. Clair Oil Co. | St Clairsville, OH 43950 | Oil & Gas Operator | Dec 1997 |
| 225 | Stocker & Sitler Inc | Columbus, OH 43214-0981-0981 | Oil & Gas Operator | Dec 2002 |
| 226 | Stonebridge Operating Co LLC | Marietta, OH 45750-0060-0060 | Oil & Gas Operator | Dec 2023 |
| 227 | Swingle Drilling Inc | Crooksville, OH 43731 | Oil & Gas Operator | Dec 2023 |
| 228 | T B Drilling Co | Moxahala, OH 43761 | Oil & Gas Operator | Dec 1998 |
| 229 | Tansky J/Tansky Oil Prod | Logan, OH 43138 | Oil & Gas Operator | Dec 1997 |
| 230 | Tatum Petroleum Corporation | Zanesville, OH 43702 | Oil & Gas Operator | Dec 2008 |
| 231 | Teagarden David W | Glenford, OH 43739 | Oil & Gas Operator | Dec 2020 |
| 232 | Temple Oil & Gas Co | Crooksville, OH 43731 | Oil & Gas Operator | Dec 2023 |
| 233 | The Edward H Everett Company | Newark, OH 43055 | Oil & Gas Operator | Dec 2022 |
| 234 | Tiger Oil, Inc. | Canal Wincheste, OH 43110 | Oil & Gas Operator | Dec 2007 |
| 235 | Tipka Energy Devlopment Company | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 2020 |
| 236 | Tipka William N | Dover, OH 44622 | Oil & Gas Operator | Dec 1988 |
| 237 | Titan Energy Corp | Thomasville, AL 36784 | Oil & Gas Operator | Aug 2009 |
| 238 | Twinoaks Oil & Gas Co | Newark, OH 43058-0764-0764 | Oil & Gas Operator | Dec 2023 |
| 239 | Union Oil Co | Danville, OH 43014 | Oil & Gas Operator | Dec 2014 |
| 240 | Valley Petroleum Management | Utica, OH 43080 | Oil & Gas Operator | Dec 2023 |
| 241 | Vanguard Oil & Gas LLC | East Lansing, MI 48826 | Oil & Gas Operator | Dec 2023 |
| 242 | Victor McKenzie Drilling Co Inc | Zanesville, OH 43702-3323-3323 | Oil & Gas Operator | Dec 2022 |
| 243 | Waldron David A | Wooster, OH 44691 | Oil & Gas Operator | Dec 2003 |
| 244 | Wallick Petroleum Co | Reynoldsburg, OH 43068 | Oil & Gas Operator | Dec 1994 |
| 245 | Watson Wayne W | Cambridge, OH 43725-3024-3024 | Oil & Gas Operator | Dec 2002 |
| 246 | Windsor Associates Inc | Fairlawn, OH 44333-4006-4006 | Oil & Gas Operator | Dec 2012 |
| 247 | Witco Corporation | Newark, OH 43055 | Oil & Gas Operator | Dec 1995 |
| 248 | WNT Operating Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2001 |
| 249 | Wolfe Oil | Bremen, OH 43107 | Oil Operator | Dec 2023 |
| 250 | Wood, Donald E. | Independence, KS 67301 | Oil & Gas Operator | Dec 2023 |
| 251 | Woodyard Drilling | Chesterhill, OH 43728 | Oil & Gas Operator | Dec 2016 |
| 252 | Wray-Vernau Partnership | Newark, OH 43055 | Oil & Gas Operator | Dec 1988 |
| 253 | Yei Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 254 | Zenith Oil & Gas Inc | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 1999 |