| 201 | Esis Inc | | Oil & Gas Operator | Feb 2017 |
| 202 | Excelco Energy Inc. | Kingwood, TX 77339 | Oil & Gas Operator | Jul 2018 |
| 203 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Jan 2024 |
| 204 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | May 2024 |
| 205 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Mar 2024 |
| 206 | Fail W T Inc | | Oil & Gas Operator | Mar 2015 |
| 207 | Fairway Resources Operating III LLC | | Oil & Gas Operator | Jan 2024 |
| 208 | Faulconer Energy, LLC | Tyler, TX 75711 | Oil & Gas Operator | May 2024 |
| 209 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Feb 2024 |
| 210 | FDL Operating, LLC | Judson, TX 75660 | Oil & Gas Operator | May 2024 |
| 211 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 212 | Ferraro Energy Corporation | Oklahoma City, OK 73114-6629 | Oil & Gas Operator | Aug 2013 |
| 213 | Five Star Energy, Inc. | Seguin, TX 78155 | Oil & Gas Operator | Jan 2024 |
| 214 | Fleetwood K Phil Oil Properties | Marlow, OK 73055 | Oil & Gas Operator | Jan 2024 |
| 215 | Focus Energy, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2019 |
| 216 | Foreman Enterprises, Inc. | Edmond, OK 73003 | Oil & Gas Operator | Feb 2024 |
| 217 | Fossil Creek Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2024 |
| 218 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | May 2024 |
| 219 | Four Seas Exploration LLC | Oklahoma City, OK 73101-1557 | Oil & Gas Operator | Dec 2019 |
| 220 | FP Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2008 |
| 221 | Fpco Oil & Gas Co. | New Orleans, LA 70160 | Oil & Gas Operator | Jan 2024 |
| 222 | Franks Oil & Gas Inc | Cookson, OK 74427-0310 | Oil & Gas Operator | Oct 1998 |
| 223 | Freeman Oil Co | Midland, TX 79701 | Oil & Gas Operator | Sep 2014 |
| 224 | Fremont Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2004 |
| 225 | Fremont Exploration, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Nov 2014 |
| 226 | G A W Oil Company LLC | Enid, OK 73702-3926 | Oil & Gas Operator | Jan 2024 |
| 227 | Garrett, Dwayne M | | Oil & Gas Operator | Dec 2000 |
| 228 | Gary Jr Samuel & Assoc Inc | Denver, CO 80202-4803 | Oil & Gas Operator | Jul 1999 |
| 229 | Gas Enhancement Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2014 |
| 230 | Gene Cook Inc | Woodward, OK 73802-0689 | Oil & Gas Operator | Feb 2024 |
| 231 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 232 | General Minerals Corp | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2015 |
| 233 | Genesis Crude Oil LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 234 | Genie Oil & Gas Corporation | Broken Arrow, OK 74013-3783 | Oil & Gas Operator | Jan 2024 |
| 235 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 236 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 237 | Glenn Supply Company, Inc. | Tulsa, OK 74101 | Oil & Gas Operator | Jan 2024 |
| 238 | Golden Gas Energies Inc | | Oil & Gas Operator | Jan 1999 |
| 239 | Golden Gas Production Company | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
| 240 | Gothic Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2015 |
| 241 | Gothic Production Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2016 |
| 242 | GPM Gas Corporation | Oklahoma City, OK 73102-5627 | Oil & Gas Operator | Jun 2000 |
| 243 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 244 | Graham-Michaelis Corporation | Wichita, KS 67201 | Oil & Gas Operator | Dec 2010 |
| 245 | Grand Resources Inc | Tulsa, OK 74137 | Oil & Gas Operator | May 2024 |
| 246 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Feb 2024 |
| 247 | Greenlee Oil And Gas LLC | Oklahoma City, OK 73189-1613 | Oil & Gas Operator | Dec 2023 |
| 248 | Greenwood Energy Inc | Oklahoma City, OK 73116-9083 | Oil & Gas Operator | Mar 2015 |
| 249 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2024 |
| 250 | Gulf Production Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2015 |
| 251 | H & L Operating Co LLP | Amarillo, TX 79114 | Oil & Gas Operator | Aug 2022 |
| 252 | H & L Operating Company | Amarillo, TX 79114 | Oil & Gas Operator | Feb 2020 |
| 253 | H2ox Operating LLC | | Oil Operator | Feb 2024 |
| 254 | Hadson Petroleum Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 255 | Halcon Holdings Inc | Ada, OK 74820 | Oil & Gas Operator | Nov 2018 |
| 256 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2023 |
| 257 | Ham Oil Company, LLC | | Oil Operator | Sep 2022 |
| 258 | Harbor Resources LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | May 2024 |
| 259 | Harding & Shelton Inc | Oklahoma City, OK 73104-2410 | Oil & Gas Operator | Jan 2024 |
| 260 | Harding And Shelton Exploration LLC | | Oil & Gas Operator | Jan 2024 |
| 261 | Harken Exploration Company | Houston, TX 77079 | Oil & Gas Operator | Mar 2008 |
| 262 | Harrell Petroleum Inc | Oklahoma City, OK 73102-7201 | Oil & Gas Operator | Oct 2017 |
| 263 | Hartman Oil Company Inc | Wichita, KS 67206 | Oil & Gas Operator | Jan 2024 |
| 264 | Hawkins Oil & Gas Inc | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2016 |
| 265 | Hazlewood Oil & Gas Co Inc | Oklahoma City, OK 73139-9353 | Oil & Gas Operator | Apr 2022 |
| 266 | HCM | Dallas, TX 75206 | Oil & Gas Operator | Mar 2015 |
| 267 | Headington Oil Company | Dallas, TX 75231 | Oil & Gas Operator | Dec 2016 |
| 268 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
| 269 | Heartland Environmental Services | | Oil & Gas Operator | May 1999 |
| 270 | Heartlands Development Co Inc | Bristow, OK 74010-3826 | Oil & Gas Operator | May 2017 |
| 271 | Helmerich & Payne, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2024 |
| 272 | Hennessey Oil & Gas LLC | Hennessey, OK 73742-0212 | Oil & Gas Operator | Jan 2024 |
| 273 | Heritage Petroleum, Inc. | Stillwater, OK 74076 | Oil & Gas Operator | May 2024 |
| 274 | Herrman & Ikenberry | Cushing, OK 74023-0247 | Oil & Gas Operator | Dec 2003 |
| 275 | High Sierra Crude Oil& Marketing LLC | Ardmore, OK 73401 | Oil Operator | Nov 2013 |
| 276 | Hinkle Engineering, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2016 |
| 277 | Hodgden Operating Co., Inc. | Enid, OK 73702 | Oil & Gas Operator | Feb 2024 |
| 278 | Holke Dave Consulting Inc | Meridian, ID 83646-4812 | Oil & Gas Operator | Jan 2024 |
| 279 | Hondo Oil & Gas Company | Roswell, NM 88202 | Oil & Gas Operator | Aug 2006 |
| 280 | Horizon Natural Gas Company | Tulsa, OK 74170 | Oil & Gas Operator | Jan 2024 |
| 281 | Horizon Natural Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2019 |
| 282 | Hosco Operating Inc | Seminole, OK 74868-2447 | Oil & Gas Operator | Aug 2017 |
| 283 | HRB Operating Company Inc | Bridgeport, TX 76426 | Oil & Gas Operator | May 2024 |
| 284 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | May 2024 |
| 285 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
| 286 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | May 2024 |
| 287 | Hy-Carb Energy Inc | | Oil & Gas Operator | Feb 2009 |
| 288 | Ike Energy LLC | | Oil & Gas Operator | Jan 2024 |
| 289 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | May 2024 |
| 290 | Indian Wells Oil Co | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2000 |
| 291 | Internorth Inc | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2014 |
| 292 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Feb 2024 |
| 293 | Irex Corporation | Englewood, CO 80111 | Oil & Gas Operator | May 2000 |
| 294 | J D Operating Company | Tulsa, OK 74105 | Oil & Gas Operator | Jun 2005 |
| 295 | J-Brex Company | Amarillo, TX 79101 | Oil & Gas Operator | May 2024 |
| 296 | Jackson L B Production Co | Tulsa, OK 74193-0001 | Oil & Gas Operator | Aug 2013 |
| 297 | JCR, Jr - Operating, Inc. | Amarillo, TX 79114 | Oil & Gas Operator | Apr 2022 |
| 298 | JCS Operating LLC | Guymon, OK 73942 | Oil & Gas Operator | Jan 2024 |
| 299 | Jec Operating LLC | Oklahoma City, OK 73114-2717 | Oil & Gas Operator | Jan 2024 |
| 300 | Jenex Operating Company | The Woodlands, TX 77380-164280209 | Oil & Gas Operator | May 2019 |