| 4301 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 4302 | Parwest Land Exploration Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Jan 2026 |
| 4303 | Passmore Robert W | Ada, OK 74820-5501 | Oil & Gas Operator | May 2022 |
| 4304 | Patco Investments Inc | Seminole, OK 74868 | Oil Operator | Nov 2007 |
| 4305 | Pathfinder Exploration LLC | Norman, OK 73069-8516 | Gas Operator | Aug 2003 |
| 4306 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 4307 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 4308 | Patrick Exploration Company | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 4309 | Patrick Petroleum Co. | Jackson, MI 49201 | Oil & Gas Operator | Nov 1993 |
| 4310 | Patrick R J & Jack H Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2002 |
| 4311 | Patrick RJ Operating Co | Liberal, KS 67905-1157 | Oil & Gas Operator | Nov 2014 |
| 4312 | Patriot Petroleum Co LLC | Coppell, TX 75019-4216 | Oil & Gas Operator | Jan 2013 |
| 4313 | Patron Energy LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 4314 | Patterson & Patterson Oil Co | Cushing, OK 74023 | Oil Operator | Aug 1995 |
| 4315 | Patterson Bobby Ray | Haskell, OK 74436-8809 | Oil & Gas Operator | Apr 2020 |
| 4316 | Patterson Eddy L | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2022 |
| 4317 | Patterson George E | Ada, OK 74820-1108 | Oil & Gas Operator | Jul 2016 |
| 4318 | Patterson John H | Shawnee, OK 74801 | Oil Operator | Dec 2006 |
| 4319 | Patterson Oil Company, The | Eastland, TX 76448 | Oil & Gas Operator | Feb 2026 |
| 4320 | Patterson Russell B | Wewoka, OK 74884-1262 | Oil & Gas Operator | Feb 2020 |
| 4321 | Patton Dale | Stillwater, OK 74074 | Oil & Gas Operator | Dec 2011 |
| 4322 | Patton Oil Company | Midland, TX 79702 | Oil & Gas Operator | Jun 2007 |
| 4323 | Paul Burton LLC | Ardmore, OK 73401 | Oil & Gas Operator | Feb 2026 |
| 4324 | Paul Gillham Oil Company | Maud, OK 74854 | Oil & Gas Operator | Jan 2026 |
| 4325 | Pauls Valley Disposal LLC | Kingston, OK 73439-2130 | Oil Operator | Mar 2015 |
| 4326 | Pawnee Oil And Gas, Inc. | Richardson, TX 75083 | Oil & Gas Operator | May 2023 |
| 4327 | Pawnee Petroleum Company | Seminole, OK 74868-0951 | Oil & Gas Operator | Feb 2023 |
| 4328 | Pax Energy LLC | Oklahoma City, OK 73112-7371 | Oil Operator | Sep 2021 |
| 4329 | Payne Charlie D | Lawton, OK 73505 | Oil & Gas Operator | May 2001 |
| 4330 | Payne Exploration Company | Crescent, OK 73028 | Oil & Gas Operator | Jan 2026 |
| 4331 | Payne W C Family Trust | Oklahoma City, OK 73116-9044 | Oil & Gas Operator | Mar 2015 |
| 4332 | Payne, Frank O | | Oil Operator | Aug 1999 |
| 4333 | Payneco Pipeline Company | Yale, OK 74085 | Oil & Gas Operator | Dec 2000 |
| 4334 | Payrock Energy LLC | Oklahoma City, OK 73134-2612 | Oil & Gas Operator | Feb 2023 |
| 4335 | Paystone Oil Corporation | Tulsa, OK 74105 | Oil Operator | Mar 2009 |
| 4336 | PBT Enterprises Inc | Garber, OK 73738 | Oil & Gas Operator | Jun 2023 |
| 4337 | PCL Energy LLC | Seminole, OK 74868 | Oil & Gas Operator | Jan 2026 |
| 4338 | PDG Production LLC | Stroud, OK 74079 | Oil & Gas Operator | Jan 2026 |
| 4339 | Pe - Osage, LLC | | Oil Operator | Jan 2026 |
| 4340 | Peachridge Energy Operating LLC | Oklahoma City, OK 73159 | Oil & Gas Operator | Feb 2026 |
| 4341 | Peak Operating Oil & Gas LLC | Wichita, KS 67226 | Oil & Gas Operator | Jan 2026 |
| 4342 | Pearl Oil Company | Nichols Hills, OK 73120-1408 | Oil & Gas Operator | Nov 2023 |
| 4343 | Pearl Petroleum Inc | Lawton, OK 73501-5821 | Oil & Gas Operator | Jan 2014 |
| 4344 | Pearsall Jarrett | Delaware, OK 74027-1065 | Oil Operator | Jan 2026 |
| 4345 | Pease George W Jr | Fairfax, OK 74637 | Oil & Gas Operator | Mar 1998 |
| 4346 | Pedco Inc | | Oil & Gas Operator | Nov 1997 |
| 4347 | Pedestal Oil Company Inc | Oklahoma City, OK 73101-1522 | Oil & Gas Operator | May 2019 |
| 4348 | Pedocs Inc | Bixby, OK 74008 | Oil & Gas Operator | Nov 2025 |
| 4349 | Pegasus Energy Corporation | Oklahoma City, OK 73162 | Oil & Gas Operator | Mar 2015 |
| 4350 | Pegg Oil LLC | Allen, OK 74825-4900 | Oil Operator | Aug 2022 |
| 4351 | Pelican Dome Exploration Inc. | Harahan, LA 70123 | Oil & Gas Operator | Aug 2000 |
| 4352 | Pelican Production Company | New Orleans, LA 70130-2477 | Oil & Gas Operator | Mar 2014 |
| 4353 | Pelto Oil Company | Houston, TX 77002 | Oil & Gas Operator | Nov 1998 |
| 4354 | Pemco LLC | Skiatook, OK 74070 | Oil Operator | Feb 2026 |
| 4355 | Pemex Inc | Dallas, TX 75367-0249 | Oil & Gas Operator | Nov 2015 |
| 4356 | Penequine Ranch | | Gas Operator | Sep 2019 |
| 4357 | Pengo Petroleum Inc | | Oil & Gas Operator | Dec 2013 |
| 4358 | Penn Homa Oil & Gas Co | Edmond, OK 73083 | Oil & Gas Operator | Oct 2013 |
| 4359 | Penn Production Company Inc | | Oil & Gas Operator | Nov 2014 |
| 4360 | Penn VIrginia MC Operating Co LLC | Houston, TX 77084-7213 | Oil & Gas Operator | Sep 2025 |
| 4361 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2023 |
| 4362 | Pennant Energy LLC | Oklahoma City, OK 73116 | Oil Operator | Dec 2024 |
| 4363 | Pennant Oil & Gas LLC | Oklahma City, OK 73159-6905 | Oil & Gas Operator | Jan 2024 |
| 4364 | Penner Energy Inc | Oklahoma City, OK 73120-1930 | Oil & Gas Operator | Feb 2026 |
| 4365 | Pennmark Resources Company | Edmond, OK 73013 | Oil & Gas Operator | Feb 2026 |
| 4366 | Penntex Resources, L.P. | State College, PA 16803 | Oil & Gas Operator | Mar 2016 |
| 4367 | Pennzoil Company | Midland, TX 79710-0090 | Oil & Gas Operator | Mar 2000 |
| 4368 | Pennzoil Explor & Prod Co | Houston, TX 77002 | Oil & Gas Operator | Mar 2000 |
| 4369 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 4370 | Peoples Bank & Trust Company | McPherson, KS 67460 | Oil Operator | Jan 2013 |
| 4371 | Pepin Oil Co | Stillwater, OK 74076 | Oil & Gas Operator | Oct 2013 |
| 4372 | Pepin Operating Company Inc | Stillwater, OK 74075-9535 | Oil & Gas Operator | May 2009 |
| 4373 | Peregrine Petroleum Corp | Oklahoma City, OK 73116-7639 | Oil & Gas Operator | May 2020 |
| 4374 | Performance Energy Partners LLC | Barnsdall, OK 74002-0628 | Oil & Gas Operator | Sep 2025 |
| 4375 | Performance Operating Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Feb 2026 |
| 4376 | Performance Petroleum Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Feb 2026 |
| 4377 | Perkins Energy Company | Duncan, OK 73533-3853 | Oil & Gas Operator | Feb 2026 |
| 4378 | Perkins Mike | Velma, OK 73091 | Oil & Gas Operator | Jan 2006 |
| 4379 | Perkins Nova | Atwood, OK 74827-9738 | Oil Operator | Feb 2014 |
| 4380 | Perkins, Bobby R | | Oil Operator | Mar 2017 |
| 4381 | Perkins, Earl | | Oil & Gas Operator | Aug 2013 |
| 4382 | Permian Roustabout & Oilfield Services LLC | Blanchard, OK 73010 | Oil & Gas Operator | Feb 2024 |
| 4383 | Permian West Corp. | Odessa, TX 79762 | Oil & Gas Operator | May 2026 |
| 4384 | Perrin, Mary L | | Oil & Gas Operator | Oct 2005 |
| 4385 | Perry L Larson Operating Co | Dallas, TX 75231-4712 | Oil & Gas Operator | Feb 2026 |
| 4386 | Perry Production Company Inc | Perry, OK 73077-0412 | Oil & Gas Operator | May 2006 |
| 4387 | Pet-Ex Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2026 |
| 4388 | Petco Petroleum Corp | Hinsdale, IL 60521 | Oil & Gas Operator | Jan 2026 |
| 4389 | Petra Petroleum Inc | Littleton, CO 80160-0319 | Oil & Gas Operator | Jun 2005 |
| 4390 | Petra Petroleum Management LLC | Hotchkiss, CO 81419-0369 | Gas Operator | Sep 2014 |
| 4391 | Petro Davis Inc | Oklahoma City, OK 73142-1807 | Oil & Gas Operator | Jan 2013 |
| 4392 | Petro Energy Inc | Farmington, NM 87499 | Oil & Gas Operator | Sep 2025 |
| 4393 | Petro Oilfield Equipment Inc | Drumright, OK 74030-1233 | Oil & Gas Operator | Dec 2010 |
| 4394 | Petro Speed Inc | Norman, OK 73069-8116 | Oil & Gas Operator | Mar 2015 |
| 4395 | Petro Warrior LLC | Wichita, KS 67206 | Oil & Gas Operator | Jan 2026 |
| 4396 | Petro-Guard Company, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2014 |
| 4397 | Petro-Haley | Borger, TX 79008 | Oil & Gas Operator | May 2026 |
| 4398 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
| 4399 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 4400 | Petro-Mac Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2026 |