| 201 | L & H Energy Inc | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2019 |
| 202 | L & L Producers | Independnce, KS 67301 | Oil Operator | Apr 2025 |
| 203 | L&L Oil Company LLC | Copan, OK 74022-4608 | Oil Operator | Mar 2014 |
| 204 | L.L. Oil Company | Freer, TX 78357 | Oil & Gas Operator | Jul 2025 |
| 205 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 206 | Lakeland Pipeline Inc | Hominy, OK 74035-1006 | Oil & Gas Operator | Jun 2023 |
| 207 | Lamamco Drilling Company | Skiatook, OK 74070 | Oil & Gas Operator | Apr 2025 |
| 208 | Lance Ruffel Oil & Gas LLC | Oklahoma City, OK 73102-5632 | Oil & Gas Operator | May 2025 |
| 209 | Larkin Energy Company Inc | Sasakwa, OK 74867 | Oil & Gas Operator | May 2022 |
| 210 | Larmore Jr James E | Bartlesville, OK 74006-8312 | Oil Operator | Mar 2017 |
| 211 | Legacy Petroleum LLC | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2025 |
| 212 | Leonard Brothers Operating Co. | Fort Worth, TX 76101 | Oil & Gas Operator | Jul 2025 |
| 213 | Lewis A Hembree Production Co | Shawnee, OK 74801 | Oil & Gas Operator | Apr 2025 |
| 214 | Limestone Productions | Bartlesville, OK 74006-8229 | Oil & Gas Operator | Sep 2013 |
| 215 | Lincoln Rock Corporation | Northfield, IL 60093 | Oil & Gas Operator | Jul 2003 |
| 216 | Lowe Kenneth | Jennings, OK 74038 | Oil & Gas Operator | Apr 2025 |
| 217 | Lucre Oil Company | Muskogee, OK 74401-5099 | Oil & Gas Operator | Jun 2019 |
| 218 | M & D Oil & Gas | Levelland, TX 79336 | Oil & Gas Operator | Aug 2000 |
| 219 | M & H Enterprises | Bartlesville, OK 74006-5504 | Oil & Gas Operator | Jan 2013 |
| 220 | M & S Oil Company | Lawrenceburg, IN 47025-8675 | Oil & Gas Operator | Aug 2000 |
| 221 | M.T. Oil Co. | Copan, OK 74022 | Oil Operator | Apr 2025 |
| 222 | Macro Oil Company | Bartlesville, OK 74006 | Oil Operator | Aug 1999 |
| 223 | Mantex Inc | Tulsa, OK 74114-6234 | Oil & Gas Operator | Mar 2015 |
| 224 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | May 2025 |
| 225 | Marco Oil Co, Inc | Sparta, KY 41086 | Oil Operator | Dec 2021 |
| 226 | Marco Oil Company LLC | Bartlesville, OK 74005 | Oil & Gas Operator | Apr 2025 |
| 227 | Marjo Oil Company | Lockhart, TX 78644 | Oil & Gas Operator | Oct 1999 |
| 228 | Marjo Operating Company Inc | Tulsa, OK 741010729 | Oil & Gas Operator | Apr 2025 |
| 229 | Matoush Wade E | | Oil & Gas Operator | Mar 2014 |
| 230 | McClintock, Robert T | | Oil & Gas Operator | Apr 2025 |
| 231 | McCullough G W | Norman, OK 73072 | Oil & Gas Operator | Aug 2000 |
| 232 | McGonigal Donald T | Tulsa, OK 74114-2145 | Oil & Gas Operator | Jul 2004 |
| 233 | Meador Hubbell Meador Inc | Beggs, OK 74421-0794 | Oil & Gas Operator | Apr 2020 |
| 234 | Meador Oil Company Inc | Lubbock, TX 79415 | Oil & Gas Operator | Oct 2022 |
| 235 | Mecom Energy Corporation | Houston, TX 77030 | Oil & Gas Operator | Jan 1999 |
| 236 | Meridian Exploration Inc | Oklahoma City, OK 73128 | Oil & Gas Operator | Aug 2013 |
| 237 | Metro Energy LTD | Scottsdale, AZ 85254 | Oil Operator | Aug 2000 |
| 238 | Mewbourne Oil Company | Tyler, TX 75711 | Oil & Gas Operator | Jul 2025 |
| 239 | Mito Resources LLC | Edmond, OK 73013 | Oil & Gas Operator | May 2025 |
| 240 | MJ Goetz Bonding, LLC | Bartlesville, OK 74006 | Oil Operator | Apr 2025 |
| 241 | Moore Oil And Gas | Burleson, TX 76028 | Oil & Gas Operator | Jul 2025 |
| 242 | Moore Tommy M | Sapulpa, OK 74066-8273 | Oil & Gas Operator | May 2013 |
| 243 | Morrison Oil Company | Bartlesville, OK 74003 | Oil Operator | Mar 2015 |
| 244 | Moze Inc | Ochelata, OK 74051 | Oil & Gas Operator | Jan 2001 |
| 245 | Murphy Jack L | Tulsa, OK 74104-4915 | Oil Operator | Mar 2015 |
| 246 | National Energy Group, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 247 | Newco, Inc. | Oklahoma City, OK 73177 | Oil Operator | Aug 1999 |
| 248 | Nordan Oil & Gas Corporation | Abilene, TX 79604 | Oil & Gas Operator | Feb 2018 |
| 249 | Norman Production Company | Chandler, OK 74834-8538 | Oil & Gas Operator | May 2015 |
| 250 | Northeast Shelf Energy, L.L.C. | | Oil & Gas Operator | Jun 2017 |
| 251 | Oil Operations Inc | | Oil & Gas Operator | Apr 2011 |
| 252 | Orloski John C | Bartlesville, OK 74006 | Oil & Gas Operator | Apr 2025 |
| 253 | Osage Energy Resources LLC | Bartlesville, OK 74005-2527 | Oil & Gas Operator | Apr 2025 |
| 254 | Oswego Arbuckle Enterprise Inc | S Coffeyville, OK 74072-9702 | Oil & Gas Operator | Mar 2015 |
| 255 | Ovintiv Mid-Continent Inc. | The Woodlands, TX 77380-2764 | Oil & Gas Operator | May 2025 |
| 256 | Painter & McPhail | Bartlesville, OK 74006 | Oil Operator | Sep 1996 |
| 257 | Pan Petroleum MLP | Kansas City, MO 64114 | Oil & Gas Operator | Aug 1997 |
| 258 | Panoak Oil & Gas Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Aug 2018 |
| 259 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 260 | Parwest Land Exploration, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Apr 2025 |
| 261 | Patterson Eddy L | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2022 |
| 262 | Pawnee Oil And Gas, Inc. | Richardson, TX 75083 | Oil & Gas Operator | May 2023 |
| 263 | Paystone Oil Corporation | Tulsa, OK 74105 | Oil Operator | Mar 2009 |
| 264 | Pelican Dome Exploration Inc | Harahan, LA 70123 | Oil & Gas Operator | Aug 2000 |
| 265 | Pemco LLC | Skiatook, OK 74070 | Oil Operator | Apr 2025 |
| 266 | Performance Energy Partners LLC | Barnsdall, OK 74002-0628 | Oil & Gas Operator | Oct 2024 |
| 267 | Performance Operating Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Apr 2025 |
| 268 | Performance Petroleum Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Apr 2025 |
| 269 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 270 | Petroleum Explo Prod Inc | Oilton, OK 74052 | Oil & Gas Operator | Jan 2017 |
| 271 | Phillips, Warren P | | Oil & Gas Operator | Apr 2011 |
| 272 | Pierce Oil Company | Skiatook, OK 74070 | Oil & Gas Operator | Nov 2017 |
| 273 | Pierson Max S | Bartlesville, OK 74003-5909 | Oil Operator | Sep 2020 |
| 274 | Putnam Phyllis L | Bartlesville, OK 74006-7326 | Oil & Gas Operator | May 2021 |
| 275 | R & A Moore, Inc. | Cleburne, TX 76033 | Oil & Gas Operator | Jul 2025 |
| 276 | R & L Oil Company | Copan, OK 74022 | Oil Operator | May 2020 |
| 277 | R C Oil Company Inc | Nowata, OK 74048-3402 | Oil Operator | Nov 2021 |
| 278 | R I G Producers Inc | Dewey, OK 74029 | Oil & Gas Operator | Jul 1999 |
| 279 | R&K Oil Co. | Nocona, TX 76255 | Oil & Gas Operator | Jul 2025 |
| 280 | Rainbow Oil Company | | Oil & Gas Operator | Aug 1999 |
| 281 | Rambler Oil Co | Oklahoma City, OK 73154 | Oil & Gas Operator | Jan 1999 |
| 282 | Red Buck Oil Co. | Copan, OK 74022-0215 | Oil Operator | Nov 2009 |
| 283 | Redbird Oil Company | Bartlesville, OK 74005-2566 | Oil & Gas Operator | Mar 2015 |
| 284 | Revocable Inter VIvos Trust Of Delapp Frankie L | Bartlesville, OK 74006-0307 | Oil & Gas Operator | Feb 2020 |
| 285 | Richardson, Bud II | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 286 | Ricks Consulting LLC | Copan, OK 74022 | Oil Operator | Mar 2025 |
| 287 | Robertson Jay Estate | Tulsa, OK 74127-3029 | Oil & Gas Operator | Jul 2013 |
| 288 | Rockford CBM LLC | Tulsa, OK 74103-4335 | Oil & Gas Operator | Jan 2013 |
| 289 | Rocky Top Energy LLC | Bartlesville, OK 74003 | Oil & Gas Operator | Sep 2024 |
| 290 | RTD Inc | Bartlesville, OK 74006 | Oil Operator | Jan 1995 |
| 291 | Ry-Co Petroleum | Wann, OK 74083 | Oil & Gas Operator | Feb 2017 |
| 292 | Sallee Oil Corporation | Collinsville, OK 74021 | Oil & Gas Operator | May 2025 |
| 293 | Sand Boy Production Company | Bartlesville, OK 74003-9273 | Oil & Gas Operator | Jan 2025 |
| 294 | Schiff & Jackson Oil Producers | Dallas, TX 75206 | Oil & Gas Operator | Apr 2025 |
| 295 | Selby Larry Monroe | Bartlesville, OK 74006 | Oil & Gas Operator | Apr 2020 |
| 296 | Select Operating Company Inc | Dallas, TX 75225 | Oil & Gas Operator | Mar 2014 |
| 297 | Sellmeyer Eugene | Collinsville, OK 74021 | Oil & Gas Operator | Mar 2015 |
| 298 | Serendipity Operating LLC | Sparks, NV 89436-9328 | Oil & Gas Operator | Apr 2025 |
| 299 | Service Clearing Corp | Dallas, TX 75229 | Oil & Gas Operator | Jul 2025 |
| 300 | Sevitski & Associates Inc | Pryor, OK 74361 | Oil & Gas Operator | Dec 2000 |