401 | Patterson Petroleum LLC | Snyder, TX 79550 | Oil & Gas Operator | Oct 2007 |
402 | Patterson Petroleum LP | Snyder, TX 79550 | Oil & Gas Operator | Mar 2008 |
403 | Peach Creek Operating Co, LLC | Houston, TX 77007 | Oil & Gas Operator | Apr 2024 |
404 | Pecos Petroleum Company | Houston, TX 77057 | Oil & Gas Operator | Oct 1999 |
405 | Pegasus Operating, Inc. | Coldspring, TX 77331 | Oil & Gas Operator | Apr 2024 |
406 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2018 |
407 | Penn VIrginia Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
408 | Peoples Energy Prod.-TX, L.P. | Houston, TX 77002 | Oil & Gas Operator | Sep 2007 |
409 | Petra Oleum Corp. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
410 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
411 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
412 | Petrocorp Acquisition Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2002 |
413 | Petrocorp Incorporated,A TX.Corp | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2005 |
414 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | Dec 2023 |
415 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
416 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
417 | Petrolero Corp. | San Antonio, TX 78205 | Oil & Gas Operator | Feb 1998 |
418 | Petroleum Advisors Int'L., Inc. | Houston, TX 77224 | Gas Operator | Jun 2005 |
419 | Petropro Energy Partners, L.P. | Houston, TX 77024 | Oil & Gas Operator | Jan 2013 |
420 | Petrosearch Operating Co, LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
421 | PG&E Resources Company | Houston, TX 77042 | Oil & Gas Operator | May 1995 |
422 | Pie Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 2024 |
423 | Pintail Production Co., Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Apr 2024 |
424 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | Apr 2024 |
425 | Pioneer Resources Producing, L.P | Irving, TX 75039 | Oil & Gas Operator | Feb 2001 |
426 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
427 | Pmo | Garland, TX 75040 | Oil & Gas Operator | Feb 2018 |
428 | Poco LLC | Houston, TX 77270 | Oil & Gas Operator | Apr 2024 |
429 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
430 | Powerline Energy Corporation | Arlington, TX 76015 | Oil & Gas Operator | Apr 2024 |
431 | Premier Minerals, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2024 |
432 | Premium Exploration Company | Early, TX 76803 | Oil & Gas Operator | Apr 2024 |
433 | Presidio Exploration, Inc. | Englewood, CO 80155 | Oil & Gas Operator | May 1999 |
434 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
435 | Producers Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Aug 2000 |
436 | Proline Energy Resources Inc | Sugar Land, TX 77479 | Oil & Gas Operator | Apr 2024 |
437 | Property Development Group, Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Apr 2024 |
438 | Property Producing Co. | Columbus, TX 78934 | Gas Operator | Apr 2024 |
439 | Puls, W. L. | Houston, TX 77084 | Oil & Gas Operator | Sep 2002 |
440 | Pure Resources, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2006 |
441 | Quintana Pet. Corp. | Refugio, TX 78377 | Oil & Gas Operator | Dec 2000 |
442 | R & S Energy Company | Luling, TX 78648 | Oil & Gas Operator | Dec 2010 |
443 | Ragars Oil & Gas Co. | Austin, TX 78716 | Oil & Gas Operator | Apr 2024 |
444 | Ramtex Energy LLC | Tulsa, OK 74152 | Oil & Gas Operator | Apr 2024 |
445 | Rana Energy Company | Spring, TX 77387 | Oil & Gas Operator | Mar 2008 |
446 | Range Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2021 |
447 | Rawhide Operating, Inc. | New Braunfels, TX 78131 | Oil & Gas Operator | Apr 2024 |
448 | Ray Loveless Enterprises, L.L.C. | Kilgore, TX 75663 | Oil Operator | Apr 2024 |
449 | Red Fork Production, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Nov 2023 |
450 | Redwood Operating, Inc. | Houston, TX 77058 | Oil & Gas Operator | Apr 2024 |
451 | Reef Exploration, Inc. (A-1) | Richardson, TX 75080 | Oil & Gas Operator | Oct 2006 |
452 | Reef Exploration, L.P. | Richardson, TX 75080 | Oil & Gas Operator | Apr 2024 |
453 | Remora Management, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Apr 2024 |
454 | Reo Operating LLC | Austin, TX 78747 | Oil & Gas Operator | Apr 2024 |
455 | Republic Resources, LLC. | San Antonio, TX 78212 | Oil & Gas Operator | Apr 2024 |
456 | Resaca Resources, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
457 | Rfe Operating, LLC | Tyler, TX 75703 | Oil & Gas Operator | Apr 2024 |
458 | Richardson Operating Company | Denver, CO 80237 | Oil & Gas Operator | Jan 2024 |
459 | Richardson, Marshall T. | Midfield, TX 77458 | Oil & Gas Operator | Apr 2024 |
460 | Riddle Engineering Corp. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jul 2011 |
461 | Rincon Petroleum Corporation | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |
462 | Rio Bravo Oil Company | The Woodlands, TX 77381 | Oil & Gas Operator | Feb 2002 |
463 | Rise Petroleum Investments LLC | Spring, TX 77386 | Oil & Gas Operator | Apr 2024 |
464 | Rocc Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
465 | Rocc Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
466 | Rockoil Energy Of Texas, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2024 |
467 | Rocky Creek Resources, LLC | Houston, TX 77055 | Oil & Gas Operator | Apr 2024 |
468 | Rosewood Resources, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
469 | Rotation, Incorporated | Houston, TX 77057 | Oil & Gas Operator | Mar 2023 |
470 | Royal Production Company, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |
471 | Rudman Partnership, The | Dallas, TX 75201 | Oil & Gas Operator | Dec 2014 |
472 | Sabco Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2011 |
473 | Sabco Operating Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Jun 2018 |
474 | Sabine Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
475 | Sabine Oil & Gas LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2017 |
476 | Salt Creek Production, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Apr 2024 |
477 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
478 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2024 |
479 | Sanchez Oil & Gas Corporation | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
480 | Sanchez-O'Brien Oil & Gas Corp | Houston, TX 77057 | Oil & Gas Operator | May 1998 |
481 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2024 |
482 | Santos USA Corp. | Houston, TX 77042 | Oil & Gas Operator | Dec 2008 |
483 | Saxet Energy, LTD. | Houston, TX 77057 | Oil & Gas Operator | Mar 2004 |
484 | Scully Energy Corporation | Salado, TX 76571 | Oil & Gas Operator | Mar 2012 |
485 | Sedona Oil & Gas Corporation | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
486 | Seely Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2024 |
487 | Seisgen Exploration, Inc | Houston, TX 77024 | Gas Operator | Aug 2005 |
488 | Sellers Lease Service, Inc. | Flatonia, TX 78941 | Oil & Gas Operator | Apr 2024 |
489 | Sendero Energy Inc. | Dallas, TX 75205 | Oil & Gas Operator | Apr 2024 |
490 | Seneca Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2017 |
491 | Sequoia Management, LLC | Houston, TX 77060 | Oil & Gas Operator | Nov 2009 |
492 | Sev Texas Operating, LLC | Long Beach, CA 90755 | Oil & Gas Operator | Apr 2024 |
493 | Sevenbar Resources, LLC | Hallettsville, TX 77964 | Oil & Gas Operator | Apr 2024 |
494 | SFM Holdings, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jul 1995 |
495 | Shale Hunter, LLC | Irving, TX 75039 | Oil & Gas Operator | Jan 2016 |
496 | Shana Petroleum Company | Dallas, TX 75206 | Oil & Gas Operator | Sep 2002 |
497 | Shanghai Energy Corporation | Houston, TX 77027 | Oil & Gas Operator | Apr 2003 |
498 | Sharon Hunter Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Sep 2012 |
499 | Sharon Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Aug 2010 |
500 | Shell Trading Us Company | Houston, TX 77210 | Oil & Gas Operator | Dec 2023 |