| 3301 | P.M. Petroleum | | Oil Operator | Mar 1998 |
| 3302 | P.T.L. Operating Co. | | Oil Operator | Jun 2003 |
| 3303 | Pace Royalty Trust Fund, Inc. | Shreveport, LA 71135 | Oil & Gas Operator | Nov 2001 |
| 3304 | Pacific Enterprises Oil Co USA | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 3305 | Pacific Enterprises Royalty Co | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 3306 | Pacific-Atlantic Oil Company, Inc. | | Oil & Gas Operator | Aug 2016 |
| 3307 | Page Development, L.L.C. | | Oil Operator | Jan 2024 |
| 3308 | Painter Oil And Gas LTD. | | Oil & Gas Operator | Jun 1986 |
| 3309 | Palace Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2007 |
| 3310 | Palace Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
| 3311 | Paladin Petroleum III, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | May 2024 |
| 3312 | Palm Energy Offshore, L.L.C. | | Oil & Gas Operator | Apr 2019 |
| 3313 | Palmer Petroleum Inc. | Shreveport, LA 71106 | Oil & Gas Operator | May 2024 |
| 3314 | Palmetto Oil Co., Inc. | | Oil & Gas Operator | Jan 2024 |
| 3315 | Paloma Natural Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2023 |
| 3316 | Pan Petroleum MLP | Kansas City, MO 64114 | Oil & Gas Operator | Aug 1997 |
| 3317 | Pan-Ok Production Company | | Oil & Gas Operator | Dec 2023 |
| 3318 | Panaco Production Co | Houston, TX 77002 | Oil & Gas Operator | Dec 1999 |
| 3319 | Panaco, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2024 |
| 3320 | Panenergy La Intrastate Co | | Oil Operator | Mar 2000 |
| 3321 | Panotech Exploration Corp. | | Oil & Gas Operator | Jan 1983 |
| 3322 | Panther Bayou Energy, LLC | Houston, TX 77070 | Oil & Gas Operator | Apr 2021 |
| 3323 | Par Exploration Co | | Oil & Gas Operator | Oct 1986 |
| 3324 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | May 2024 |
| 3325 | Par Oil Corporation | | Oil & Gas Operator | Sep 1990 |
| 3326 | Par Oil Corporation, Et Al | | Oil & Gas Operator | Dec 1984 |
| 3327 | Par-Naylor | | Oil Operator | Mar 1985 |
| 3328 | Paradigm Energy LLC | Lenexa, KS 66227 | Oil & Gas Operator | Dec 2023 |
| 3329 | Paragon Resources, Inc | | Oil & Gas Operator | Nov 1991 |
| 3330 | Park Exploration Inc | | Oil & Gas Operator | Nov 2012 |
| 3331 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
| 3332 | Parker & Parsley Devpt L P | | Oil & Gas Operator | Oct 1997 |
| 3333 | Parker & Parsley Petroleum Co. | | Oil & Gas Operator | Dec 1990 |
| 3334 | Parker & Parsley Producing LP | Midland, TX 79702 | Oil & Gas Operator | Oct 1997 |
| 3335 | Parker Enterprises, Inc. | | Oil & Gas Operator | Jun 1999 |
| 3336 | Parker Oil Company | Abilene, TX 79601 | Oil & Gas Operator | Sep 2023 |
| 3337 | Parnes Oil Company | | Oil Operator | Jul 1994 |
| 3338 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 3339 | Patkim Production Inc. | | Oil Operator | Jan 2024 |
| 3340 | Patrick Petroleum Corp. | | Oil & Gas Operator | Oct 1984 |
| 3341 | Patterson Resources, Inc. | | Oil & Gas Operator | Apr 1984 |
| 3342 | Patton Operating Co. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 1997 |
| 3343 | Paul E. Cameron, Jr., Inc. | | Oil & Gas Operator | May 2003 |
| 3344 | Paul Guido | | Oil Operator | Oct 1998 |
| 3345 | Paul J. Ross | | Oil Operator | Dec 1986 |
| 3346 | Paul M. Toce | | Oil & Gas Operator | Jul 1984 |
| 3347 | Pawnee Oil And Gas, Inc. | Richardson, TX 75083 | Oil & Gas Operator | May 2023 |
| 3348 | Paxton Oil Company | | Oil & Gas Operator | Dec 2023 |
| 3349 | Paxton Petroleum, LTD. | | Oil & Gas Operator | May 1989 |
| 3350 | Pay Oil, L. L. C. | | Oil & Gas Operator | Jan 2024 |
| 3351 | Pay Ventures, L.L.C. | | Oil Operator | Jan 2024 |
| 3352 | Peachtree Production Co. | | Oil & Gas Operator | Mar 1981 |
| 3353 | Peak Operating Co. | | Oil & Gas Operator | Dec 2023 |
| 3354 | Pearl Resources Inc. | | Oil & Gas Operator | Jul 1990 |
| 3355 | Pecos Petroleum Company | Houston, TX 77057 | Oil & Gas Operator | Oct 1999 |
| 3356 | Pecos Western Corporation | | Gas Operator | Feb 1992 |
| 3357 | Pedernales Petroleum Operating, LLC | | Oil & Gas Operator | Dec 2023 |
| 3358 | Pedernales Production, LP | Houston, TX 77057 | Oil & Gas Operator | Mar 2022 |
| 3359 | Pel-Tex - McMoran | | Oil & Gas Operator | Dec 1985 |
| 3360 | Pel-Tex Oil Company, Inc. | | Oil & Gas Operator | Jul 1995 |
| 3361 | Pel-Tex Oil Company, LLC | | Oil & Gas Operator | Nov 2010 |
| 3362 | Pel-Tex, Inc. | | Oil & Gas Operator | Jul 1985 |
| 3363 | Pelican Dome Exploration Inc. | Harahan, LA 70123 | Oil & Gas Operator | Aug 2000 |
| 3364 | Pelican Gas Prod. Assoc. | | Oil & Gas Operator | Oct 1987 |
| 3365 | Pelican Producing Co. | | Gas Operator | Nov 1992 |
| 3366 | Pelico Pipeline, LLC | | Oil Operator | Dec 2023 |
| 3367 | Pelto Oil Co | Houston, TX 77002 | Oil & Gas Operator | Nov 1998 |
| 3368 | Pend Oreille Oil & Gas Company | | Oil & Gas Operator | Sep 1989 |
| 3369 | Pengo Petroleum, Inc. | | Oil & Gas Operator | Dec 2013 |
| 3370 | Pengo Petroleum, Inc. & J.W.S. | | Oil & Gas Operator | Jul 1977 |
| 3371 | Pengo Producing Company | | Oil & Gas Operator | Mar 1987 |
| 3372 | Penn Resources, Inc. | Dallas, TX 75219 | Oil & Gas Operator | Sep 1987 |
| 3373 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2018 |
| 3374 | Penn VIrginia Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
| 3375 | Pennington Oil & Gas Int, LLC | | Oil & Gas Operator | Dec 2023 |
| 3376 | Pennington Operating Company, LLC | | Oil & Gas Operator | Jul 2020 |
| 3377 | Pennzenergy Explor & Prod LLC | | Oil & Gas Operator | Dec 1999 |
| 3378 | Pennzoil Company | Midland, TX 79710-0090 | Oil & Gas Operator | Mar 2000 |
| 3379 | Pennzoil E & P & M H Marr | | Oil & Gas Operator | Sep 1993 |
| 3380 | Pennzoil E & P Co - Arco | | Oil & Gas Operator | Dec 1993 |
| 3381 | Pennzoil E & P Co - Clark Oil | | Oil & Gas Operator | Apr 1980 |
| 3382 | Pennzoil E & P Co Et Al | | Oil & Gas Operator | Feb 1999 |
| 3383 | Pennzoil E & P Co-Sohio Et Al | | Oil & Gas Operator | Jul 1991 |
| 3384 | Pennzoil E & P Co-Sohio Petr | | Oil & Gas Operator | Feb 1999 |
| 3385 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 3386 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 3387 | Pentagon Petroleum, Inc. | | Oil & Gas Operator | Sep 1991 |
| 3388 | Penton And Penton | | Oil & Gas Operator | Jan 1983 |
| 3389 | Peoples Energy Prod.-TX, L.P. | Houston, TX 77002 | Oil & Gas Operator | Sep 2007 |
| 3390 | Perdido Energy Louisiana, LLC | | Oil & Gas Operator | Dec 2023 |
| 3391 | Perdura Energy L.L.C. | | Oil & Gas Operator | Apr 2018 |
| 3392 | Perdure Petroleum LLC | Allen, TX 75013 | Oil & Gas Operator | Oct 2021 |
| 3393 | Perenco LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2005 |
| 3394 | Perkins Oil Properties | | Oil & Gas Operator | Nov 2023 |
| 3395 | Permeator Corp. | | Oil Operator | Sep 1990 |
| 3396 | Perna Oil & Gas LLC | | Oil & Gas Operator | Nov 2023 |
| 3397 | Perry Point, Inc. | | Oil Operator | Mar 2022 |
| 3398 | Pesco | | Oil & Gas Operator | Oct 1984 |
| 3399 | Pete Caldwell Drilling Co.,Inc | | Oil & Gas Operator | Aug 1991 |
| 3400 | Peterman-Sturlese Et Al | | Oil & Gas Operator | Sep 1987 |