501 | Orion Oil & Gas Prop | Roswell, NM 88202 | Oil & Gas Operator | Apr 1998 |
502 | Orion Oil & Gas Properties | Amarillo, TX 79109 | Gas Operator | Oct 2000 |
503 | Orion Oil & Gas, LLC | Houston, TX 77042 | Oil & Gas Operator | Oct 2007 |
504 | Orion Oil And Gas Corporation | Houston, TX 77082 | Oil & Gas Operator | Mar 2024 |
505 | Orion Petro Corp | MT Vernon, IL 62864 | Oil & Gas Operator | Dec 2016 |
506 | Orisol Oil Co. | Houston, TX 77206 | Oil Operator | Jun 2000 |
507 | Orla Petco Inc & Hopi Drilling Co | Midland, TX 79702 | Oil Operator | Sep 2004 |
508 | Orla Petco, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2024 |
509 | Orland Oil & Gas LLC | FT Lauderdale, FL 33305 | Oil Operator | Mar 2024 |
510 | Orleans Exploration Co., Inc. | | Oil & Gas Operator | Aug 1990 |
511 | Orloski John C | Bartlesville, OK 74006-9040 | Oil & Gas Operator | Jan 2024 |
512 | Ormand, Don R. | Midland, TX 79705 | Oil & Gas Operator | Jan 2016 |
513 | Oro Negro Inc. | | Oil & Gas Operator | Dec 2004 |
514 | Oro Resources, LLC | Austin, TX 78746 | Oil & Gas Operator | Mar 2024 |
515 | Orr Energy LLC | | Oil & Gas Operator | Nov 2012 |
516 | Orr Jr., Donald R. | Batavia, NY 14020 | Gas Operator | Dec 2022 |
517 | Orr Production Company | Austin, TX 78746 | Oil & Gas Operator | Dec 2000 |
518 | Orr Robert W Jr | Zanesville, OH 43702-2683 | Oil & Gas Operator | Dec 2022 |
519 | Orsburn, Wade Inc. | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2002 |
520 | Orson Leasing & Supply | Rockdale, TX 76567 | Oil & Gas Operator | Dec 2006 |
521 | Orth Oil Company, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Mar 2024 |
522 | Orville S Slaughter Jr | Denver, CO 80205 | Oil & Gas Operator | Aug 2000 |
523 | Orx Resources, Inc. | | Oil & Gas Operator | Dec 2009 |
524 | Orx Resources, L.L.C. | Houston, TX 77067 | Oil & Gas Operator | Mar 2024 |
525 | Oryx Crude Trading & Transporation LP | Dallas, TX 75221 | Oil & Gas Operator | Jun 1999 |
526 | Oryx Energy Comp | | Oil & Gas Operator | Apr 1991 |
527 | Oryx Energy Company | Dallas, TX 75221 | Oil & Gas Operator | May 2002 |
528 | Os&S Operating Inc. | Electra, TX 76360 | Oil & Gas Operator | Mar 2024 |
529 | Osa Oil & Gas LLC | | Oil & Gas Operator | Aug 2023 |
530 | Osage Energy LLC | Colony, KS 66015 | Oil Operator | Nov 2023 |
531 | Osage Energy Resources LLC | Bartlesville, OK 74005-2527 | Oil & Gas Operator | Jan 2024 |
532 | Osage Exploration & Development Inc | | Oil & Gas Operator | Oct 2016 |
533 | Osage Hot Oil Service | Newcastle, WY 82701 | Oil & Gas Operator | Jul 1997 |
534 | Osage Oil & Transportation Inc | Cleveland, OK 74020 | Oil & Gas Operator | Nov 2000 |
535 | Osage Operating | Virginia Beach, VA 23452 | Oil & Gas Operator | Oct 2003 |
536 | Osage Operating Company LLC | Seattle, WA 98133 | Oil Operator | May 2006 |
537 | Osage Partners LLC | | Oil & Gas Operator | Jan 2024 |
538 | Osage Petroleum Corporation | Saint Louis, MO 63131-4691 | Oil & Gas Operator | Mar 2009 |
539 | Osage Resources, LLC | Wichita, KS 67202 | Oil & Gas Operator | Aug 2023 |
540 | Osair Inc | Mentor, OH 44061 | Oil & Gas Operator | Dec 2021 |
541 | Osborn Energy, L.L.C. | Bucyrus, KS 66013 | Oil & Gas Operator | Jul 2017 |
542 | Osborn Heirs Co | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2024 |
543 | Osborn Heirs Com | | Oil & Gas Operator | May 1995 |
544 | Osborn Heirs Company LTD | San Antonio, TX 78217 | Oil & Gas Operator | Nov 2023 |
545 | Osborn Oil & Gas | | Oil & Gas Operator | Jun 1991 |
546 | Osborn,W.B. Oil & Gas Operations | San Antonio, TX 78217 | Oil & Gas Operator | Mar 2024 |
547 | Osborne Oil Co. | Dallas, TX 75244 | Oil & Gas Operator | Aug 2003 |
548 | Osburn Gerald Dba Ozzy & Son Oil & Gas | Drumright, OK 74030-5467 | Oil Operator | Oct 2020 |
549 | Oscar Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Sep 2004 |
550 | Oscar'S Well Service Inc | Okemah, OK 74859 | Oil & Gas Operator | Apr 1998 |
551 | Osceola Oil & Gas Corporation | Somerset, TX 78069 | Oil & Gas Operator | Aug 1994 |
552 | Osci Oil And Gas, Inc. | Parker, KS 66072 | Oil Operator | Jun 1998 |
553 | Oshtah Oil Company LLC | Stratford, OK 74872-0250 | Oil & Gas Operator | Sep 2018 |
554 | Oso Exploration & Production, LLC | Houston, TX 77269 | Oil Operator | Mar 2024 |
555 | Oso Exploration Co. | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2011 |
556 | Oso Oil & Gas Properties LLC | Price, UT 84501 | Gas Operator | Jun 2016 |
557 | Oso Resources LLC | | Oil & Gas Operator | Dec 2023 |
558 | Ososki Edward D Dba Federal Oil Company | | Oil & Gas Operator | Jun 2022 |
559 | Osprey Petroleum Company, Inc. | Manvel, TX 77578 | Oil & Gas Operator | May 2020 |
560 | Osr Oil & Gas Company | Victoria, TX 77902 | Oil & Gas Operator | Jul 2000 |
561 | Osr Oil & Gas Corp | Midland, TX 79710 | Oil & Gas Operator | Dec 2023 |
562 | Osterhout Phillip L | Drumright, OK 74030-0693 | Oil & Gas Operator | Jan 2014 |
563 | Ostrich Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Mar 2024 |
564 | Oswego Arbuckle Enterprise Inc | S Coffeyville, OK 74072-9702 | Oil & Gas Operator | Mar 2015 |
565 | Oswego Oil & Gas | | Oil & Gas Operator | Jun 1984 |
566 | Oswego, Inc. | Amarillo, TX 79109 | Oil & Gas Operator | Jun 2004 |
567 | Osyka Oil & Gas, Inc. | Metairie, LA 70004 | Oil & Gas Operator | Mar 2024 |
568 | Osyka Permian, LLC | Houston, TX 77079 | Oil & Gas Operator | Mar 2024 |
569 | Osyka Producing Company, Inc. | Houston, TX 77242 | Oil & Gas Operator | Mar 2024 |
570 | Otb Operating, LLC | Stanton, TX 79782 | Oil & Gas Operator | Mar 2024 |
571 | Otc Investors Inc | Locust Grove, OK 74352 | Oil Operator | Dec 2023 |
572 | Otc Petroleum Corporation | Oklahoma City, OK 73116 | Oil & Gas Operator | Mar 2015 |
573 | Otc/Occ Not Assigned | | Oil & Gas Operator | Nov 2023 |
574 | Otex Inc | N Canton, OH 44720 | Oil & Gas Operator | Dec 1988 |
575 | Otex LLC | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2024 |
576 | Otex Resources LLC | Baytown, TX 77520 | Oil & Gas Operator | Mar 2024 |
577 | Otis C. Coles, Jr. | | Oil & Gas Operator | Jan 1998 |
578 | Oto, Co. | Woodward, OK 73802 | Oil & Gas Operator | Jun 1998 |
579 | Ott Inc | Casper, WY 82602 | Oil Operator | Dec 2023 |
580 | Otter Exploration Inc | Warren, PA 16365-9689 | Oil & Gas Operator | Dec 2021 |
581 | Ouachita Exploration Inc | Chickasha, OK 73023-0926 | Oil & Gas Operator | Jan 2024 |
582 | Ouida Oil | Rowlett, TX 75030 | Oil & Gas Operator | Mar 2008 |
583 | Ouida Oil Co. | | Oil & Gas Operator | Apr 1999 |
584 | Outback Petroleum Inc | Moore, OK 73160-9998 | Oil & Gas Operator | Mar 2015 |
585 | Outlaw Oil And Gas LLC | Gillette, WY 82716 | Oil & Gas Operator | Dec 2023 |
586 | Outlaw Oil LLC | Caldwell, TX 77836 | Oil & Gas Operator | Mar 2024 |
587 | Outlaw Well Service LLC | Hays, KS 67601 | Oil Operator | Nov 2023 |
588 | Outline Oil Company LLC | Beeville, TX 78104 | Oil Operator | Mar 2024 |
589 | Outline Oil Corp. | San Antonio, TX 78217 | Oil & Gas Operator | Mar 2024 |
590 | Outlook Petroleum Corp. | Midland, TX 79702 | Oil & Gas Operator | Jan 2001 |
591 | Outman, Joshua J. | Andover, NY 14806 | Oil & Gas Operator | Dec 2022 |
592 | Output Acquisition Corp. | | Oil & Gas Operator | Jul 2010 |
593 | Output Exploration LLC | | Oil & Gas Operator | Dec 2006 |
594 | Ouut Investing LLC | Mineral Wells, TX 76068 | Oil Operator | Mar 2020 |
595 | Ovaco Energy Inc. | | Oil & Gas Operator | Nov 2009 |
596 | Ovation Energy II, LP | Houston, TX 77279 | Oil & Gas Operator | Jun 2011 |
597 | Ovation Energy, LP | N Richlnd HLS, TX 76180 | Oil & Gas Operator | Sep 2004 |
598 | Overfield, Lee R | Waverly, KY 42462 | Oil Operator | Dec 2016 |
599 | Overflow Energy Stack LLC | | Oil Operator | Sep 2022 |
600 | Overflow Energy, LLC | Booker, TX 79005 | Oil & Gas Operator | Mar 2024 |