| 201 | J & E Energy Company | Oklahoma City, OK 73120-1108 | Oil & Gas Operator | Mar 2015 |
| 202 | J & K Operating Co LLC | Delaware, OK 74027 | Oil & Gas Operator | Aug 2025 |
| 203 | J & M Oil Co | Overland PK, KS 66209 | Oil & Gas Operator | Sep 2025 |
| 204 | J-O Oil Co | | Oil & Gas Operator | Dec 2000 |
| 205 | J. C. Oil Company | Odessa, TX 79766 | Oil & Gas Operator | Mar 2015 |
| 206 | Jackson J M | Oklahoma City, OK 73101 | Oil & Gas Operator | Apr 2005 |
| 207 | Jackson L B Production Co | Tulsa, OK 74193-0001 | Oil & Gas Operator | Aug 2013 |
| 208 | Jay B Harden | | Oil Operator | Nov 2025 |
| 209 | Jerry Sanner Oil Properties Inc | Enid, OK 73701 | Oil & Gas Operator | Dec 2025 |
| 210 | Jma Energy Company LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2025 |
| 211 | Johnson Family Trust | Copan, OK 74022-5805 | Oil Operator | Nov 2025 |
| 212 | Jones Douglas Q LLC | Fort Gibson, OK 74434 | Oil Operator | Aug 2021 |
| 213 | JSD Resources Corporation | Barnsdall, OK 74002-3272 | Oil & Gas Operator | Jul 2025 |
| 214 | K & E Field Services Inc | Bartlesville, OK 74005-0518 | Oil & Gas Operator | Jun 2016 |
| 215 | Kaiser Farms | Edmond, OK 73025-9489 | Oil & Gas Operator | Nov 2025 |
| 216 | Keller Estate Leases LLC | Bartlesville, OK 74003-3608 | Oil Operator | Aug 2012 |
| 217 | Kelly Oil | Tulsa, OK 74105 | Oil Operator | Dec 2000 |
| 218 | Kelmac Production Company | Braman, OK 74632-0132 | Oil Operator | Apr 2003 |
| 219 | Kerns Larry Dba Kerns Oil | Dewey, OK 74029-2457 | Oil Operator | Nov 2017 |
| 220 | Kidd Oil & Gas, LC | Dallas, TX 75219 | Oil & Gas Operator | Apr 1999 |
| 221 | KJB Oil Company LLC | Dewey, OK 74029-3053 | Oil Operator | Nov 2025 |
| 222 | Kleen Oilfield Services Co | Velma, OK 73491-0178 | Oil & Gas Operator | Dec 2025 |
| 223 | L & G Petroleum Operating, LLC | Havana, KS 67347 | Oil Operator | Sep 2025 |
| 224 | L & H Energy Inc | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2019 |
| 225 | L & L Producers | Independence, KS 67301 | Oil Operator | Nov 2025 |
| 226 | L&L Oil Company LLC | Copan, OK 74022-4608 | Oil Operator | Mar 2014 |
| 227 | L.L. Oil Company | Freer, TX 78357 | Oil & Gas Operator | Feb 2026 |
| 228 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 229 | Lakeland Pipeline Inc | Hominy, OK 74035-1006 | Oil & Gas Operator | Jun 2023 |
| 230 | Lamamco Drilling Company | Skiatook, OK 74070 | Oil & Gas Operator | Nov 2025 |
| 231 | Lance Ruffel Oil & Gas LLC | Oklahoma City, OK 73102-5632 | Oil & Gas Operator | Dec 2025 |
| 232 | Larkin Energy Company Inc | Sasakwa, OK 74867 | Oil & Gas Operator | May 2022 |
| 233 | Larmore Jr James E | Bartlesville, OK 74006-8312 | Oil Operator | Mar 2017 |
| 234 | Laurco Energies,Inc | | Oil & Gas Operator | May 2025 |
| 235 | Legacy Petroleum LLC | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2025 |
| 236 | Leonard Brothers Operating Co. | Fort Worth, TX 76101 | Oil & Gas Operator | Feb 2026 |
| 237 | Lewis A. Hembree Production Company | Shawnee, OK 74801 | Oil & Gas Operator | Nov 2025 |
| 238 | Limestone Productions | Bartlesville, OK 74006-8229 | Oil & Gas Operator | Sep 2013 |
| 239 | Lincoln Rock Corporation | Northfield, IL 60093 | Oil & Gas Operator | Jul 2003 |
| 240 | Lowe Kenneth | Jennings, OK 74038 | Oil & Gas Operator | Sep 2025 |
| 241 | Lucre Oil Company | Muskogee, OK 74401-5099 | Oil & Gas Operator | Jun 2019 |
| 242 | LX4, LLC | | Oil Operator | Dec 2025 |
| 243 | M & D Oil & Gas | Levelland, TX 79336 | Oil & Gas Operator | Aug 2000 |
| 244 | M & H Enterprises | Bartlesville, OK 74006-5504 | Oil & Gas Operator | Jan 2013 |
| 245 | M & S Oil Co | Lawrenceburg, IN 47025-8675 | Oil & Gas Operator | Aug 2000 |
| 246 | M & T Oil Company | Copan, OK 74022 | Oil Operator | Nov 2025 |
| 247 | Macro Oil Company | Bartlesville, OK 74006 | Oil Operator | Aug 1999 |
| 248 | Mantex Inc | Tulsa, OK 74114-6234 | Oil & Gas Operator | Mar 2015 |
| 249 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Dec 2025 |
| 250 | Marco Oil Company | Sparta, KY 41086 | Oil Operator | Dec 2021 |
| 251 | Marco Oil Company LLC | Bartlesville, OK 74005 | Oil & Gas Operator | Nov 2025 |
| 252 | Marjo Oil Company | Lockhart, TX 78644 | Oil & Gas Operator | Oct 1999 |
| 253 | Marjo Operating Company Inc | Tulsa, OK 741010729 | Oil & Gas Operator | Nov 2025 |
| 254 | Matoush Wade E | | Oil & Gas Operator | Mar 2014 |
| 255 | McClintock, Robert T | | Oil & Gas Operator | Oct 2025 |
| 256 | McCullough G W | Norman, OK 73072 | Oil & Gas Operator | Aug 2000 |
| 257 | McGonigal Donald T | Tulsa, OK 74114-2145 | Oil & Gas Operator | Jul 2004 |
| 258 | Meador Hubbell Meador Inc | Beggs, OK 74421-0794 | Oil & Gas Operator | Apr 2020 |
| 259 | Meador Oil Company Inc | Lubbock, TX 79415 | Oil & Gas Operator | Oct 2022 |
| 260 | Mecom Energy Corporation | Houston, TX 77030 | Oil & Gas Operator | Jan 1999 |
| 261 | Meridian Exploration Inc | Oklahoma City, OK 73128 | Oil & Gas Operator | Aug 2013 |
| 262 | Metro Energy LTD | Scottsdale, AZ 85254 | Oil Operator | Aug 2000 |
| 263 | Mewbourne Oil Company | Tyler, TX 75711 | Oil & Gas Operator | Feb 2026 |
| 264 | Mito Resources LLC | Edmond, OK 73013 | Oil & Gas Operator | Dec 2025 |
| 265 | MJ Goetz Bonding, LLC | Bartlesville, OK 74006 | Oil Operator | Nov 2025 |
| 266 | Moore Oil And Gas | Burleson, TX 76028 | Oil & Gas Operator | Feb 2026 |
| 267 | Moore Tommy M | Sapulpa, OK 74066-8273 | Oil & Gas Operator | May 2013 |
| 268 | Morrison Oil Company | Bartlesville, OK 74003 | Oil Operator | Mar 2015 |
| 269 | Moze Inc | Ochelata, OK 74051 | Oil & Gas Operator | Jan 2001 |
| 270 | Murphy Jack L | Tulsa, OK 74104-4915 | Oil Operator | Mar 2015 |
| 271 | National Energy Group Inc | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 272 | New Dominion LLC | Tulsa, OK 74119-3220 | Oil & Gas Operator | Dec 2025 |
| 273 | Newco Inc | Oklahoma City, OK 73177 | Oil Operator | Aug 1999 |
| 274 | Nject Disposal LLC | Houston, TX 77027 | Oil Operator | Mar 2017 |
| 275 | Nordan Oil & Gas Corporation | Abilene, TX 79604 | Oil & Gas Operator | Feb 2018 |
| 276 | Norman Production Company | Chandler, OK 74834-8538 | Oil & Gas Operator | May 2015 |
| 277 | Northeast Shelf Energy, L.L.C. | | Oil & Gas Operator | Jun 2017 |
| 278 | Oil Operations Inc | | Oil & Gas Operator | Apr 2011 |
| 279 | Oklahoma SWD Systems Inc | Odessa, TX 79762-8132 | Oil & Gas Operator | Oct 2025 |
| 280 | Orloski John C | Bartlesville, OK 74006 | Oil & Gas Operator | Jun 2025 |
| 281 | Osage Energy Resources LLC | Bartlesville, OK 74005-2527 | Oil & Gas Operator | Nov 2025 |
| 282 | Oswego Arbuckle Enterprise Inc | S Coffeyville, OK 74072-9702 | Oil & Gas Operator | Mar 2015 |
| 283 | Ovintiv Mid-Continent Inc. | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Dec 2025 |
| 284 | Painter & McPhail | Bartlesville, OK 74006 | Oil Operator | Sep 1996 |
| 285 | Pan Petroleum MLP | Kansas City, MO 64114 | Oil & Gas Operator | Aug 1997 |
| 286 | Panoak Oil & Gas Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Aug 2018 |
| 287 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 288 | Parwest Land Exploration Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2025 |
| 289 | Patterson Eddy L | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2022 |
| 290 | Pawnee Oil And Gas, Inc. | Richardson, TX 75083 | Oil & Gas Operator | May 2023 |
| 291 | Paystone Oil Corporation | Tulsa, OK 74105 | Oil Operator | Mar 2009 |
| 292 | Pelican Dome Exploration Inc. | Harahan, LA 70123 | Oil & Gas Operator | Aug 2000 |
| 293 | Pemco LLC | Skiatook, OK 74070 | Oil Operator | Nov 2025 |
| 294 | Performance Energy Partners LLC | Barnsdall, OK 74002-0628 | Oil & Gas Operator | Sep 2025 |
| 295 | Performance Operating Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Nov 2025 |
| 296 | Performance Petroleum Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Nov 2025 |
| 297 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 298 | Petroleum Explo Prod Inc | Oilton, OK 74052 | Oil & Gas Operator | Jan 2017 |
| 299 | Phillips, Warren P | | Oil & Gas Operator | Apr 2011 |
| 300 | Pierce Oil Company | Skiatook, OK 74070 | Oil & Gas Operator | Nov 2017 |