501 | Midnight Hour LLC | Enid, OK 73702 | Oil & Gas Operator | Apr 2020 |
502 | Midwestern Exploration Co. | Edmond, OK 73013 | Oil & Gas Operator | Mar 2025 |
503 | Mikco Inc | Tulsa, OK 74133 | Oil & Gas Operator | May 2001 |
504 | Milagro Exploration, LLC | Houston, TX 77010 | Oil & Gas Operator | Aug 2018 |
505 | Minihan Production Co | Seminole, OK 74868 | Oil & Gas Operator | Jan 1997 |
506 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
507 | Mobil Exp & Prod Us Inc | Houston, TX 77060-1991 | Oil & Gas Operator | May 2001 |
508 | Mohawk Operating LLC | Oklahoma City, OK 73173-8907 | Gas Operator | Feb 2004 |
509 | Monexco | Edmond, OK 73034-3776 | Oil & Gas Operator | Mar 2008 |
510 | Monexco LLC | Dallas, TX 75204-2634 | Oil & Gas Operator | Apr 2025 |
511 | Monroe Natural Gas Inc | Norman, OK 73071 | Oil & Gas Operator | Apr 2025 |
512 | Monterey Production Company LLC | Tulsa, OK 74136 | Oil & Gas Operator | May 2025 |
513 | Montgomery Exploration Co LTD | Dallas, TX 75204-2634 | Oil & Gas Operator | Apr 2025 |
514 | Moran Oil Enterprises, LLC | Seminole, OK 74818 | Oil & Gas Operator | Dec 2019 |
515 | Morgan Petroleum Company | Edmond, OK 73083 | Oil & Gas Operator | Mar 1993 |
516 | Moss Ted A Operating Company | Oklahoma City, OK 73126-0187 | Oil & Gas Operator | Jun 1997 |
517 | Mustang Fuel Corp. Of Oklahoma | Oklahoma City, OK 73106 | Oil & Gas Operator | Nov 2016 |
518 | Nadel And Gussman, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Jul 2025 |
519 | National Energy Group, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
520 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jun 2024 |
521 | Native Gas Company LLC | Edmond, OK 73083-7435 | Oil & Gas Operator | Mar 2015 |
522 | Natural Gas Anadarko Company | Perryton, TX 79070 | Oil & Gas Operator | Jul 2025 |
523 | Natural Gas Anadarko Inc | Perryton, TX 79070 | Oil & Gas Operator | May 1999 |
524 | Natural Gas Compression Corp | Cleveland, OK 74020 | Oil & Gas Operator | Jan 2025 |
525 | Natural Gas Pipeline Co Of Am LLC | Downers Grove, IL 60515-3708 | Oil & Gas Operator | Mar 2015 |
526 | Naylor Operating Company LLC | Perryton, TX 79079-9703 | Oil & Gas Operator | Sep 2012 |
527 | Nbi Services, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Jul 2025 |
528 | Neas Operating | Pampa, TX 79065 | Oil & Gas Operator | Oct 2011 |
529 | New London Oil Inc. | Houston, TX 77253 | Oil & Gas Operator | Aug 2002 |
530 | Nichols Water Service Inc | Forgan, OK 73938 | Oil & Gas Operator | May 2018 |
531 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Jul 2025 |
532 | Noble Energy Production Inc | Houston, TX 77067 | Oil & Gas Operator | Jul 2025 |
533 | North Lake Resources LLC | Oklahoma City, OK 73132 | Oil & Gas Operator | Jul 2025 |
534 | Northport Production Company | Oklahoma City, OK 73113 | Oil & Gas Operator | May 2025 |
535 | Northwest Disposal Corporation | Laverne, OK 73848-0504 | Oil & Gas Operator | Jul 2014 |
536 | O K Swabbing Inc | Hennessey, OK 73742 | Oil & Gas Operator | Apr 2025 |
537 | O'Brien Energy Resources Corp | Portsmouth, NH 03801 | Oil & Gas Operator | Jul 2025 |
538 | O'Neill Properties, LTD. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
539 | Oakland Petroleum Oper Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2025 |
540 | Oakwood Resources, Inc. | Dallas, TX 75374 | Oil & Gas Operator | May 1998 |
541 | Oexco, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
542 | Oil Producers, Inc. Of Kansas | Wichita, KS 67206 | Oil & Gas Operator | Jul 2025 |
543 | Oil Property Management, Inc. | Attica, KS 67009 | Oil & Gas Operator | Feb 2021 |
544 | Oil Recovery Systems Inc | Tulsa, OK 74145-4619 | Oil & Gas Operator | Apr 2025 |
545 | Oilsearch Corporation | Albuquerque, NM 87109 | Oil & Gas Operator | Feb 1994 |
546 | Okie Crude Company | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2025 |
547 | Oklahoma Energy Acquisitions LP | Houston, TX 77094-1900 | Oil & Gas Operator | Apr 2025 |
548 | Okland Oil Company | Oklahoma City, OK 73102-9022 | Oil & Gas Operator | May 2025 |
549 | Olympic Petroleum Company | Tulsa, OK 74114 | Oil & Gas Operator | Jun 1998 |
550 | Omimex International Corporation | Fort Worth, TX 76103-2300 | Oil & Gas Operator | Apr 2025 |
551 | Oneok Exploration Company | Tulsa, OK 74102 | Oil & Gas Operator | Feb 2017 |
552 | Oneok Field Services Company | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2022 |
553 | Oneok Resources Company | Tulsa, OK 74102 | Oil & Gas Operator | Feb 2017 |
554 | Opal Operating Company LLC | Edmond, OK 73013 | Oil & Gas Operator | Jul 2025 |
555 | Osterhout Phillip L | Drumright, OK 74030-0693 | Oil & Gas Operator | Jan 2014 |
556 | Otc Petroleum Corporation | Nichols Hill, OK 73116 | Oil & Gas Operator | Mar 2015 |
557 | Overflow Energy, LLC | Perryton, TX 79070 | Oil & Gas Operator | Jul 2025 |
558 | Ovintiv Mid-Continent Inc. | The Woodlands, TX 77380-2764 | Oil & Gas Operator | May 2025 |
559 | Oxford Oil Inc | Cleveland, OK 74020 | Oil & Gas Operator | Feb 1997 |
560 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Jul 2025 |
561 | P & P Producing Inc | Midland, TX 79702 | Oil & Gas Operator | Feb 2015 |
562 | P F Beeler LLC | Norman, OK 73072-7522 | Oil & Gas Operator | May 2025 |
563 | P.O.&G. Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Jul 2025 |
564 | Pacific Enterprise Oil Co USA | Los Angeles, CA 90071-2005 | Oil & Gas Operator | Aug 2012 |
565 | Pal Kids Inc | Coronado, CA 92118 | Oil & Gas Operator | Nov 2000 |
566 | Paloma Operating Co Inc | Houston, TX 77002-5220 | Oil & Gas Operator | Apr 2025 |
567 | Panenergy Services Inc | Houston, TX 77525 | Oil & Gas Operator | May 2001 |
568 | Panhandle Eastern Pipeline Company LP | Houston, TX 77002-6803 | Oil & Gas Operator | Oct 1999 |
569 | Panhandle Oil & Gas Consultants Inc | Woodward, OK 73802-5011 | Oil & Gas Operator | Jul 2015 |
570 | Panhandle Oilfield Service Companies Inc | Liberal, KS 67905-1256 | Oil Operator | Sep 2000 |
571 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Jul 2025 |
572 | Pardee Production Co. | Skiatook, OK 74070 | Oil & Gas Operator | Mar 2021 |
573 | Park Avenue Exploration Corp | Oklahoma City, OK 73102-5604 | Oil & Gas Operator | Sep 2011 |
574 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
575 | Parker & Parsley Dev LP | Irving, TX 75039-3745 | Oil & Gas Operator | Mar 2015 |
576 | Parwest Land Exploration, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Apr 2025 |
577 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
578 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
579 | Patrick R J & Jack H Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2002 |
580 | Patrick RJ Operating Co | Liberal, KS 67905-1157 | Oil & Gas Operator | Nov 2014 |
581 | Patton Dale | Stillwater, OK 74074 | Oil & Gas Operator | Dec 2011 |
582 | Payne Exploration Company | Crescent, OK 73028 | Oil & Gas Operator | Apr 2025 |
583 | Payne W C Family Trust | Oklahoma City, OK 73116-9044 | Oil & Gas Operator | Mar 2015 |
584 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
585 | Perkins Nova | Atwood, OK 74827-9738 | Oil Operator | Feb 2014 |
586 | Pet-Ex, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2025 |
587 | Petra Petroleum Inc | Littleton, CO 80160-0319 | Oil & Gas Operator | Jun 2005 |
588 | Petro Speed Inc | Norman, OK 73069-8116 | Oil & Gas Operator | Mar 2015 |
589 | Petro-Haley | Borger, TX 79008 | Oil & Gas Operator | Jul 2025 |
590 | Petro-Management Assoc., Inc. | Edmond, OK 73083-2346 | Oil & Gas Operator | Jun 2007 |
591 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
592 | Petroglyph Operating Co | Boise, ID 83709 | Oil & Gas Operator | Jul 2017 |
593 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
594 | Petroleum Inc | Wichita, KS 67202 | Oil & Gas Operator | Oct 2021 |
595 | Petroleum Reserve Corporation | Plymouth MTNG, PA 19462 | Oil & Gas Operator | May 2008 |
596 | Philcon Development Co. | Amarillo, TX 79101 | Oil & Gas Operator | Sep 2014 |
597 | Pioneer Natural Res. USA, Inc. | Spring, TX 77389 | Oil & Gas Operator | Jul 2025 |
598 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
599 | Poblano Energy LLC | Houston, TX 77024-2217 | Oil & Gas Operator | Apr 2025 |
600 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |