401 | Monterey Pipeline Co. | | Oil Operator | Aug 1993 |
402 | Moore McCormack Energy, Inc. | | Oil & Gas Operator | Jul 1988 |
403 | Mosbacher Energy Company | Houston, TX 77002 | Oil & Gas Operator | May 2024 |
404 | Munday Operating Co., L.L.C. | | Oil & Gas Operator | May 2007 |
405 | Murray J. Evans | | Oil Operator | Mar 1985 |
406 | Natural Resource MGMT. Corp. | | Oil & Gas Operator | Jun 1989 |
407 | Navitas Resources, LLC | | Oil & Gas Operator | May 2016 |
408 | Nearburg Producing Company | Dallas, TX 75380 | Oil & Gas Operator | May 2024 |
409 | Neuhoff Oil & Gas Corp. | | Oil & Gas Operator | Dec 1986 |
410 | Newfield Exploration Company | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2017 |
411 | Nexen Petroleum U.S.A. Inc. | | Oil & Gas Operator | Jul 2012 |
412 | Nicco Operating Co. | | Oil & Gas Operator | May 1990 |
413 | Nicklos Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Nov 1986 |
414 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | May 2024 |
415 | North Central Oil Corp | Houston, TX 77252 | Oil & Gas Operator | Dec 2005 |
416 | O'Boyle Energy Corporation | | Oil Operator | Feb 1991 |
417 | O. D. Maybrier | | Oil Operator | Dec 2011 |
418 | O.I.L. Energy, Inc. | | Oil & Gas Operator | Dec 1984 |
419 | Ocean Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
420 | Ody Oil Corp. | | Oil & Gas Operator | Oct 1994 |
421 | Oil Country Management, Inc. | | Oil & Gas Operator | Jan 2005 |
422 | Oil Recovery, Inc. | | Oil Operator | Sep 1992 |
423 | Oleum Incorporated | | Oil & Gas Operator | Mar 1996 |
424 | Oleum Operating Company, L.C. | Longview, TX 75606 | Oil & Gas Operator | Dec 2021 |
425 | Oleum Operating La LLC | | Oil & Gas Operator | Nov 2022 |
426 | Olipdp II, LLC | Tulsa, OK 74119 | Oil & Gas Operator | May 2024 |
427 | Omni Operating Company | Osage, WY 82723 | Oil & Gas Operator | Sep 2001 |
428 | Onyx Energy Dev Of Texas Inc. | | Oil Operator | Dec 1996 |
429 | Onyx Energy Of Texas Inc. | | Oil Operator | Dec 1996 |
430 | Ops Group Limited | Houston, TX 77060 | Oil & Gas Operator | Jun 2014 |
431 | Oryx Energy Company | Dallas, TX 75221 | Oil & Gas Operator | May 2002 |
432 | Oxtex Inc | | Oil & Gas Operator | Oct 1989 |
433 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | May 2024 |
434 | P & P Producing Inc | Midland, TX 79702 | Oil & Gas Operator | Feb 2015 |
435 | P. B. Operating Company | | Oil & Gas Operator | Feb 1978 |
436 | P.C.S.I. | | Oil & Gas Operator | Jun 1987 |
437 | Pacific Enterprises Oil Co USA | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
438 | Painter Oil And Gas LTD. | | Oil & Gas Operator | Jun 1986 |
439 | Pan-Ok Production Company | | Oil & Gas Operator | Dec 2023 |
440 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
441 | Parker & Parsley Devpt L P | | Oil & Gas Operator | Oct 1997 |
442 | Parker & Parsley Petroleum Co. | | Oil & Gas Operator | Dec 1990 |
443 | Parker & Parsley Producing LP | Midland, TX 79702 | Oil & Gas Operator | Oct 1997 |
444 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
445 | Pawnee Oil And Gas, Inc. | Richardson, TX 75083 | Oil & Gas Operator | May 2023 |
446 | Pel-Tex Oil Company, Inc. | | Oil & Gas Operator | Jul 1995 |
447 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
448 | Peoples Energy Prod.-TX, L.P. | Houston, TX 77002 | Oil & Gas Operator | Sep 2007 |
449 | Perdido Energy Louisiana, LLC | | Oil & Gas Operator | Dec 2023 |
450 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | May 2024 |
451 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
452 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | Jan 2024 |
453 | Petrofunds, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jun 1996 |
454 | Petroglen Company, Inc. | | Oil & Gas Operator | Jul 1990 |
455 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
456 | Petroleum Corp Of Delaware The | | Oil & Gas Operator | May 1991 |
457 | Petroleum Futures-Chapman Oil | | Oil & Gas Operator | Jul 1981 |
458 | Petroleum Resources MGMT Corp. | | Oil & Gas Operator | Mar 2002 |
459 | Petroquest Energy, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Feb 2001 |
460 | Petroquest Energy, L.L.C. | Lafayette, LA 70505 | Oil & Gas Operator | May 2024 |
461 | Petroquest Exploration, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Mar 2008 |
462 | Petrus Oil Company., L.P. | | Oil & Gas Operator | Dec 1989 |
463 | Petrus Operating Co., Inc. | | Oil & Gas Operator | Dec 1986 |
464 | Pharaoh Oil & Gas, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | May 2024 |
465 | Phillips Oil Company | Casper, WY 82602 | Oil & Gas Operator | Sep 1986 |
466 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
467 | Phoenix Energy, Inc. | Oilmont, MT 59466 | Oil & Gas Operator | Dec 2023 |
468 | Phoenix Exploration Company LP | | Oil & Gas Operator | Sep 2011 |
469 | Phoenix Oil & Gas LTD., L.L.P. | Houston, TX 77010 | Oil & Gas Operator | Jun 2004 |
470 | Phoenix Resources Co | | Oil & Gas Operator | Jun 1984 |
471 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Jan 2024 |
472 | Pioneer Prod. Corp. | | Oil & Gas Operator | Jun 1986 |
473 | Pioneer Production Corp-Huggs | | Oil & Gas Operator | Jun 1986 |
474 | Pioneer Resources Producing, L.P | Irving, TX 75039 | Oil & Gas Operator | Feb 2001 |
475 | Planet Operating, LLC | | Oil & Gas Operator | Dec 2023 |
476 | Plano Corp. | | Oil & Gas Operator | Mar 2005 |
477 | Playa Oil & Gas, LP | | Oil & Gas Operator | Apr 2009 |
478 | Plymouth Resources Group II Inc | | Oil & Gas Operator | May 2007 |
479 | Polaris-MRM Production Co. | | Oil Operator | Nov 1985 |
480 | Power Reserves, Inc. | | Oil Operator | Feb 1999 |
481 | Prairie Producing Company | | Oil & Gas Operator | Dec 1992 |
482 | Premience Energy LLC | | Oil & Gas Operator | Nov 2023 |
483 | Premience Tepetate LLC | | Oil & Gas Operator | Jul 2014 |
484 | Presidio Exploration, Inc. | Englewood, CO 80155 | Oil & Gas Operator | May 1999 |
485 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | May 2024 |
486 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | May 2024 |
487 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
488 | Proton Energy, L.L.C. | Houston, TX 77002 | Oil & Gas Operator | Jun 2005 |
489 | Quarles Drilling Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2008 |
490 | Quest Exploration L.L.C. | | Oil & Gas Operator | Jul 2014 |
491 | Quinoco Petroleum Inc | | Oil & Gas Operator | Dec 1990 |
492 | Quintana Petroleum Corporation | Denver, CO 80265 | Oil & Gas Operator | Mar 1998 |
493 | Quintana-H H Cullen-Carl O&G | | Oil & Gas Operator | Aug 1984 |
494 | R & B Oil Company, LLC Of Texas | | Oil & Gas Operator | Jan 2024 |
495 | R. J. Davenport | | Oil Operator | May 1985 |
496 | Radke Oil Co., Inc. | | Oil Operator | May 2001 |
497 | Ramco Exploration, Inc. | | Oil & Gas Operator | Feb 1998 |
498 | Ramco, Inc. | | Oil & Gas Operator | May 1992 |
499 | Range Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2021 |
500 | Red River Oil & Gas Inc. | | Oil & Gas Operator | May 2012 |