| 201 | Jaquess W D "Bud" | Ada, OK 74820 | Oil & Gas Operator | Jan 2018 |
| 202 | Jay Petroleum Inc | Oklahoma City, OK 73154-0526 | Oil & Gas Operator | Mar 2019 |
| 203 | Jeron Oil And Gas Inc | Denison, TX 75020 | Oil & Gas Operator | Jun 2000 |
| 204 | Jesse Operating LLC | Konawa, OK 74849-4917 | Oil Operator | Jan 2024 |
| 205 | Jetson Operating Inc | Ada, OK 74821-1526 | Oil & Gas Operator | Jan 2024 |
| 206 | JLR Investments Inc | Oklahoma City, OK 73151-9101 | Oil & Gas Operator | Sep 2014 |
| 207 | Joe B Clifton Exploration Inc | Pauls Valley, OK 73075-1180 | Oil & Gas Operator | Apr 2022 |
| 208 | Johnson June | Lawton, OK 73501-9624 | Oil & Gas Operator | Dec 2023 |
| 209 | Jones Oil Company | Ardmore, OK 73402-1389 | Oil & Gas Operator | Aug 2022 |
| 210 | K Oil Company | Houston, TX 77005 | Oil & Gas Operator | Apr 2024 |
| 211 | K S Oil Company Inc | Norman, OK 73072-7480 | Oil & Gas Operator | Feb 2024 |
| 212 | Kahn George Operating Co | Seminole, OK 74818 | Oil & Gas Operator | Nov 2000 |
| 213 | Keith F. Walker Oil & Gas Co., LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2024 |
| 214 | Kelley James C Estate | Norman, OK 73069-7520 | Oil & Gas Operator | Mar 2015 |
| 215 | Kentry Oil Company | Kingston, OK 73439 | Oil Operator | Aug 2002 |
| 216 | Kerr McGee Rocky MTN Corp | Denver, CO 80202-5736 | Oil & Gas Operator | Mar 2015 |
| 217 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Sep 2023 |
| 218 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 219 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Apr 2024 |
| 220 | Kerr-McGee Refining Corp | Oklahoma City, OK 73125 | Oil & Gas Operator | Jun 2007 |
| 221 | Kidd Oil & Gas, LC | Dallas, TX 75219 | Oil & Gas Operator | Apr 1999 |
| 222 | Kim Ray Oil & Gas | Ada, OK 74821-0474 | Oil & Gas Operator | Dec 2023 |
| 223 | Kimco Oil And Gas | Wewoka, OK 74884-0613 | Oil & Gas Operator | Jul 2016 |
| 224 | Kingery Drilling Co., Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2024 |
| 225 | Kingman Petroleum Inc | Dolores, CO 81323-9503 | Oil & Gas Operator | Mar 2023 |
| 226 | Klo LLC | Tulsa, OK 74120-2428 | Oil & Gas Operator | Feb 2024 |
| 227 | Koch Hydrocarbon Company | Wichita, KS 67220-3203 | Oil & Gas Operator | Nov 2014 |
| 228 | Koch Oil Company | | Oil & Gas Operator | May 2017 |
| 229 | KWB Oil Property Management Inc | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2024 |
| 230 | Kybenco Disposals LLC | | Oil Operator | Sep 2022 |
| 231 | Lackey Raymond R | Lindsay, OK 73052 | Oil & Gas Operator | Jun 2015 |
| 232 | Lackey Raymond R & Assoc | | Oil & Gas Operator | Jan 2024 |
| 233 | Lake Country Disposal II LLC | | Oil Operator | Jan 2024 |
| 234 | Lake Country Disposal LLC | | Oil Operator | Jan 2024 |
| 235 | Lakewood Oil Company LLC | Mission Hills, KS 66208-2735 | Oil & Gas Operator | May 2013 |
| 236 | Lancer Energy Corporation | Oklahoma City, OK 73132-5903 | Oil & Gas Operator | May 2015 |
| 237 | Larkin Energy Company Inc | Sasakwa, OK 74867-0006 | Oil & Gas Operator | May 2022 |
| 238 | Larkin Oil Co | Sasakwa, OK 74867 | Oil & Gas Operator | Aug 2015 |
| 239 | Larson Exploration Company | Tulsa, OK 74136-4939 | Oil & Gas Operator | Jul 2016 |
| 240 | Lewis J K | Duncan, OK 73534-1742 | Oil & Gas Operator | Apr 2015 |
| 241 | Lewis John L Well Service | Sasakwa, OK 74867-0067 | Oil Operator | May 2013 |
| 242 | Liberty Operating Inc | Norman, OK 73069-8225 | Oil & Gas Operator | Mar 2022 |
| 243 | Likins-Foster Honolulu Corp | Foster City, CA 94404 | Oil & Gas Operator | Feb 2015 |
| 244 | Lincoln Rock Corporation | Northfield, IL 60093 | Oil & Gas Operator | Jul 2003 |
| 245 | Lion Petroleum Company | Oklahoma City, OK 73120-4503 | Oil & Gas Operator | Aug 2015 |
| 246 | Loftis Bobby Lee Rev Trust | Holdenville, OK 74848-0617 | Oil & Gas Operator | Jun 2022 |
| 247 | Lou Dennis Oil Company Inc | Ada, OK 74820-2303 | Oil & Gas Operator | Jun 2016 |
| 248 | Lucky Ace Petroleum LLC | Carrollton, TX 75010-4232 | Oil Operator | Oct 2021 |
| 249 | LX4 LLC | | Oil Operator | Jan 2024 |
| 250 | M E Booth Corporation | Ada, OK 74820-0584 | Oil Operator | Jan 2024 |
| 251 | M E Klein & Associates LLC | Washington, OK 73070-8106 | Oil & Gas Operator | Feb 2024 |
| 252 | M K W Inc | Oklahoma City, OK 73112-8884 | Oil & Gas Operator | Dec 2009 |
| 253 | Mac Laskey Kelly Oilfield | El Dorado, KS 67042 | Oil & Gas Operator | Feb 2024 |
| 254 | Macmart Inc | Wynnewood, OK 73098-0337 | Oil & Gas Operator | Jan 2016 |
| 255 | Magaw & Zimmer | Perry, OK 73077-1055 | Oil & Gas Operator | Aug 2013 |
| 256 | Magic Investments LLC | Edmond, OK 73013-1688 | Oil & Gas Operator | Nov 2023 |
| 257 | Mark A Meier Dba MSC Oil And Gas Co | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2024 |
| 258 | Marler Philip | Purcell, OK 73080-1522 | Oil & Gas Operator | Nov 2016 |
| 259 | Marsh Lonnie C | Konawa, OK 74849-4929 | Oil & Gas Operator | Jan 2024 |
| 260 | Marsh Oil & Gas Company | Pauls Valley, OK 73075-0726 | Oil & Gas Operator | Jan 2024 |
| 261 | Mason Robert A Production Co | Edmond, OK 73013-9102 | Oil & Gas Operator | May 2013 |
| 262 | Massad George H Estate | Holdenville, OK 74848 | Oil & Gas Operator | Dec 2014 |
| 263 | Massad John M | Holdenville, OK 74848-2629 | Oil & Gas Operator | Oct 2017 |
| 264 | Massad Oil Company | Holdenville, OK 74848-2629 | Oil Operator | Feb 2024 |
| 265 | Mathews Exploration Corporation | Oklahoma City, OK 73155-5328 | Oil & Gas Operator | Mar 2015 |
| 266 | Matthews Oil & Gas | Francis, OK 74844-0357 | Oil & Gas Operator | Jan 2024 |
| 267 | Meadowbrook Oil Corporation Of Ok Inc | Del City, OK 73115-3608 | Oil & Gas Operator | Feb 2024 |
| 268 | Meek Joe E | | Oil Operator | Jul 2010 |
| 269 | Mendell Petroleum Corporation | Castle Rock, CO 80104-9045 | Oil & Gas Operator | Sep 2004 |
| 270 | Mercer Oil & Gas Co. | Norman, OK 73070 | Oil & Gas Operator | Apr 2015 |
| 271 | Michael Goodnight Operating LLC | Saint Louis, OK 74866-0051 | Oil & Gas Operator | Jan 2024 |
| 272 | Mid-Con Central Expl Co | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2014 |
| 273 | Moabb Oil Corp | | Oil & Gas Operator | Apr 1998 |
| 274 | Moore Richard L | Morris, OK 74445 | Oil Operator | Aug 2013 |
| 275 | Moran-K Oil LLC | Seminole, OK 74818-1295 | Oil & Gas Operator | Feb 2024 |
| 276 | Moran-Kahn Oil | Seminole, OK 74868 | Oil & Gas Operator | Mar 1992 |
| 277 | Morrison International Energy Inc | Oklahoma City, OK 73189-0537 | Oil & Gas Operator | Dec 2023 |
| 278 | Mud Operations Inc | Ames, OK 73718-9501 | Oil & Gas Operator | Feb 2024 |
| 279 | Murphy Jack L | Tulsa, OK 74104-4915 | Oil Operator | Mar 2015 |
| 280 | National Cooperative RFG Assoc | McPherson, KS 67460-1404 | Oil & Gas Operator | Jun 2006 |
| 281 | National Energy Group Inc | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 282 | Natural Gas Compression Corp | Cleveland, OK 74020-0065 | Oil & Gas Operator | Nov 2023 |
| 283 | Nbi Services, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Apr 2024 |
| 284 | Nelson Exploration Corporation | | Oil & Gas Operator | Jan 2024 |
| 285 | Nemaha Environmental Services LLC | Enid, OK 73703 | Oil Operator | Feb 2024 |
| 286 | New Dominion LLC | Tulsa, OK 74119-3220 | Oil & Gas Operator | Jan 2024 |
| 287 | New Energy Corporation | Rancho Santa Fe, CA 92067-1990 | Oil & Gas Operator | Jan 2024 |
| 288 | NRG Oil LLC | Stratford, OK 74872-9732 | Oil Operator | Feb 2012 |
| 289 | O G & E | Oklahoma City, OK 73124-0300 | Oil & Gas Operator | Feb 2014 |
| 290 | Oak Hills Energy Inc | Holdenville, OK 74848-0470 | Oil & Gas Operator | Sep 2014 |
| 291 | Oil Center Operating Inc | Fort Worth, TX 76102-5108 | Oil & Gas Operator | Apr 2014 |
| 292 | Oklahoma Basic Economy Corp | Houston, TX 77002-6003 | Oil & Gas Operator | Apr 2020 |
| 293 | Oklahoma Liquid Resources Inc | Owasso, OK 74055-0841 | Oil & Gas Operator | Jan 2024 |
| 294 | Oklahoma Oil & Gas MGMT Inc | | Oil & Gas Operator | Jan 2024 |
| 295 | Oklahoma Petroleum Allies LLC | Ardmore, OK 73401 | Oil Operator | Oct 2023 |
| 296 | Oklahoma Prime Energy LLC | | Oil Operator | May 2020 |
| 297 | Oryx Crude Trading & Transporation LP | Dallas, TX 75221 | Oil & Gas Operator | Jun 1999 |
| 298 | Owl Creek Production Co., Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 2006 |
| 299 | Oxley Petroleum | Tulsa, OK 74119-3609 | Oil & Gas Operator | Jan 2020 |
| 300 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Apr 2024 |