| 201 | Dorward Energy Corporation | Saint Petersburg, FL 33701-3255 | Oil & Gas Operator | Dec 2024 |
| 202 | Dri Operating Company | West Chester, PA 19382-0000 | Gas Operator | Dec 2008 |
| 203 | Durst Oil & Gas, Inc. | Point Pleasant, WV 25550 | Oil & Gas Operator | Dec 2021 |
| 204 | Dutch Ridge Gas Ventures, LLC | Charleston, WV 25339 | Oil & Gas Operator | Dec 2021 |
| 205 | Eagle Energy, Inc. | Moreland, KS 67650 | Oil & Gas Operator | Dec 2021 |
| 206 | East Resources, Inc. | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2021 |
| 207 | Eastern American Energy Corp | | Oil & Gas Operator | Dec 2008 |
| 208 | Eastern Gas Transmission And Storage, Inc | | Oil & Gas Operator | Dec 2021 |
| 209 | Eastern States Exploration Co. | | Gas Operator | Dec 2021 |
| 210 | Eastern States Oil & Gas, Inc. | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2020 |
| 211 | Ecological Energy, Inc. | Morgantown, WV 26507-0000 | Oil & Gas Operator | Dec 2021 |
| 212 | Ed Broome, Inc. | Glenville, WV 26351 | Oil & Gas Operator | Dec 2021 |
| 213 | Elahs Gas Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 214 | Elder Oil Co. | West Union, WV 26456 | Oil & Gas Operator | Dec 2021 |
| 215 | Elmore Production Services Inc | | Oil & Gas Operator | Dec 2008 |
| 216 | Elvis Energy, LLC | Philippi, WV 26416 | Gas Operator | Dec 2021 |
| 217 | Emax Oil Company | Charlottesville, VA 22903-4973 | Oil & Gas Operator | Dec 2016 |
| 218 | Emco Energy, Inc. | Stephenson, VA 22656 | Gas Operator | Dec 2018 |
| 219 | Emma Gas Co | Man, WV 25635 | Gas Operator | Dec 2021 |
| 220 | Empire Oil & Gas, Inc. | Harrisville, WV 26362 | Oil & Gas Operator | Dec 2021 |
| 221 | Empire Oil Company | Coppell, TX 75019 | Oil & Gas Operator | Dec 2025 |
| 222 | Energy Contractors, Inc. | Canal Wincheste, OH 43110 | Oil & Gas Operator | Dec 2019 |
| 223 | Energy Corporation Of America | Charleston, WV 25311 | Oil & Gas Operator | Dec 2023 |
| 224 | Energy Development Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2024 |
| 225 | Energy Production, Inc. | Canton, OH 44711 | Oil & Gas Operator | Dec 2021 |
| 226 | Energy Search Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2007 |
| 227 | Energy Unlimited Inc | | Oil & Gas Operator | Feb 2005 |
| 228 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 229 | Enervest Operating, L.L.C., A Limited Liability Company | | Oil & Gas Operator | Dec 2019 |
| 230 | Engler, Inc. | Harlingen, TX 78552-0000 | Gas Operator | Dec 2020 |
| 231 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 232 | Eqt Chap, LLC | Pittsburgh, PA 15222 | Oil & Gas Operator | Nov 2025 |
| 233 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Nov 2025 |
| 234 | Equitable Gas Company | Pittsburgh, PA 15212-5352 | Gas Operator | Dec 2013 |
| 235 | Equitable Production Company | Charleston, WV 25302 | Oil & Gas Operator | Dec 2007 |
| 236 | Equitrans, L. P. | Cannonsburg, PA 15317 | Oil & Gas Operator | Jul 2021 |
| 237 | Erp Environmental Fund, Inc. | | Gas Operator | Dec 2018 |
| 238 | Exco Resources (Pa), LLC | Dallas, TX 75251-2224 | Oil & Gas Operator | Nov 2025 |
| 239 | Exco Resources (WV), Inc. | | Oil & Gas Operator | Dec 2020 |
| 240 | Factor, J. S. Pridmore | Spencer, WV 25276-0000 | Gas Operator | Dec 2017 |
| 241 | Farr Enterprises Inc | West Union, WV 24656 | Oil & Gas Operator | Dec 2021 |
| 242 | Fluharty Enterprises Inc | Bridgeport, WV 25338 | Oil & Gas Operator | Oct 2021 |
| 243 | FMC Corporation | Green River, WY 82935 | Oil & Gas Operator | Dec 2008 |
| 244 | Fola Land Company Inc | | Gas Operator | Dec 2003 |
| 245 | Four Leaf Land Company | West Union, WV 26456-0000 | Oil & Gas Operator | Dec 2021 |
| 246 | Fowler, Leonard | | Gas Operator | Dec 1998 |
| 247 | Fox Drilling Co | | Oil & Gas Operator | Oct 2015 |
| 248 | Fox Oil And Gas Inc | Houston, TX 77002 | Gas Operator | Dec 2002 |
| 249 | Francis Well Service, Inc. | Sandyville, WV 25275 | Oil & Gas Operator | Dec 2021 |
| 250 | Freedom Oil & Gas, Inc. | Branchland, WV 25506 | Gas Operator | Dec 2021 |
| 251 | French Creek Dev Inc | | Oil & Gas Operator | Dec 2006 |
| 252 | G & M Contracting, Inc. | Thealka, KY 41240 | Gas Operator | Dec 2012 |
| 253 | G & S Drilling Company | | Oil & Gas Operator | Dec 2019 |
| 254 | G.O.W. Resources | Chester, WV 26034-0000 | Oil & Gas Operator | Dec 2020 |
| 255 | Gainer, Phillip L | Fort Myers, FL 33908 | Oil & Gas Operator | Dec 2021 |
| 256 | Gallatin Fuels, Inc. | Uniontown, PA 15401-5513 | Oil & Gas Operator | Dec 2020 |
| 257 | Garrett, Rick J And Desari S | Glenville, WV 26351-0000 | Oil & Gas Operator | Dec 2021 |
| 258 | Gas Supply Corp | | Oil & Gas Operator | Dec 2008 |
| 259 | Gassearch Corporation | | Oil & Gas Operator | Dec 2008 |
| 260 | Genesis Exploration & Production Co., LLC | | Oil & Gas Operator | Dec 2019 |
| 261 | Geo Energy, LLC | Sand Fork, WV 26430 | Oil & Gas Operator | Dec 2021 |
| 262 | Geoex, Inc. | Williamson, WV 25661 | Oil & Gas Operator | Dec 2023 |
| 263 | Geomet Operating Co., Inc. | | Gas Operator | Dec 2013 |
| 264 | Gilbert Development Company, Inc. | | Gas Operator | Dec 2020 |
| 265 | Gilbert Exploration Company Inc | Charleston, WV 25301 | Oil & Gas Operator | Dec 2023 |
| 266 | Gilco Gas, Inc. | | Gas Operator | Dec 2008 |
| 267 | Glen Daniels Gas Company | Charleston, WV 25300-0000 | Gas Operator | Dec 2021 |
| 268 | Glover Oilfield Service, Inc. | Olney, IL 62450 | Oil & Gas Operator | Dec 2013 |
| 269 | Glover'S Oil & Gas | Middlebourne, WV 26149 | Oil & Gas Operator | Dec 2021 |
| 270 | Goff Connector LLC | | Gas Operator | Jul 2014 |
| 271 | Goff, Delbert | | Gas Operator | Dec 2021 |
| 272 | Gossett, Henry O., Jr. | Longview, TX 75606 | Oil & Gas Operator | Dec 2001 |
| 273 | Gpo Energy, LLC | Walton, WV 25286 | Oil & Gas Operator | Dec 2020 |
| 274 | Great Oak Energy, Inc. | Oakmont, PA 15139-2003 | Oil & Gas Operator | Feb 2021 |
| 275 | Great Western Onshore Inc | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |
| 276 | Greenville Land Development Co. | Elizabeth, WV 26143-0252 | Oil & Gas Operator | Dec 2021 |
| 277 | Greer Industries, Inc. | Morgantown, WV 26507-1900 | Gas Operator | Dec 2021 |
| 278 | Greer, Inc. | Arnoldsburg, WV 25234 | Oil & Gas Operator | Dec 2021 |
| 279 | Grey Eagle Construction Company, Inc. | Kermit, WV 25674 | Gas Operator | Dec 2021 |
| 280 | Greylock Conventional, LLC | Charleston, WV 25311 | Oil & Gas Operator | Nov 2025 |
| 281 | Greylock Opco LLC | Charleston, WV 25311 | Oil & Gas Operator | Dec 2024 |
| 282 | Grimm Assn. | | Oil & Gas Operator | Jul 2021 |
| 283 | Grose, Raymond | Buckhannon, WV 26201-0736 | Oil & Gas Operator | Dec 2003 |
| 284 | Ground Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 285 | Guernsey Petroleum Corporation | Atlanta, GA 30318 | Oil & Gas Operator | Nov 1997 |
| 286 | Gunn And Divers | Mount Zion, WV 26151 | Oil & Gas Operator | Dec 2021 |
| 287 | Gunn, P. P., Estate Heirs | | Oil & Gas Operator | Dec 2008 |
| 288 | Guyan Gas Producers, Inc. | Oceana, WV 24870 | Gas Operator | Dec 2018 |
| 289 | Haddad & Brooks Inc | Washington, PA 15301 | Oil & Gas Operator | Dec 2018 |
| 290 | Hager Gas Co | Danville, WV 25053 | Gas Operator | Dec 2010 |
| 291 | Hall Drilling, LLC | Ellenboro, WV 26346 | Oil & Gas Operator | Dec 2021 |
| 292 | Hall, James H ( Trust) | | Gas Operator | Dec 2007 |
| 293 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jun 2025 |
| 294 | Hard Rock Exploration, Inc. | | Oil & Gas Operator | Dec 2008 |
| 295 | Hardee Petroleum Co., A General PTSHP. | | Oil & Gas Operator | Dec 2013 |
| 296 | Harper Crosby Holdings, LLC | Weston, WV 26452 | Oil & Gas Operator | Dec 2024 |
| 297 | Hartman Oil And Gas Company | | Oil Operator | Dec 1998 |
| 298 | Haught Energy Corporation | Smithville, WV 26178-7004 | Oil & Gas Operator | Dec 2021 |
| 299 | Haught, Glenn L. & Sons | | Oil & Gas Operator | Dec 1997 |
| 300 | Haught, Inc. | Smithville, WV 26178 | Oil & Gas Operator | Nov 2021 |