| 2501 | Bear Creek Services, LLC | | Oil Operator | Dec 2024 |
| 2502 | Bear Energy LLC | Drumright, OK 74030-0311 | Oil & Gas Operator | Apr 2022 |
| 2503 | Bear Lake Energy | Sugar Grove, PA 16350-2104 | Gas Operator | Dec 2024 |
| 2504 | Bear Minerals LLC | Dallas, TX 75214 | Oil Operator | Jan 2025 |
| 2505 | Bear Of Texas, Inc. | Grand Rapids, MI 49546 | Oil & Gas Operator | Mar 2008 |
| 2506 | Bear Oil And Gas Inc | Las Vegas, NV 89107 | Oil & Gas Operator | Jul 2016 |
| 2507 | Bear Petroleum | | Oil & Gas Operator | Dec 1996 |
| 2508 | Bear Petroleum Inc | Haysville, KS 67060-0438 | Oil & Gas Operator | Mar 2015 |
| 2509 | Bear Petroleum LLC | Haysville, KS 67060 | Oil & Gas Operator | Dec 2024 |
| 2510 | Bear Productions Inc | Kinta, OK 74552 | Oil & Gas Operator | Jan 2025 |
| 2511 | Bear Springs Oil & Gas, L.L.C | Gorman, TX 76454 | Oil & Gas Operator | Apr 2025 |
| 2512 | Bearcat Energy LLC (Colorado) | Denver, CO 80202 | Oil & Gas Operator | May 2022 |
| 2513 | Bearcat Oil Co | Sugar Grove, PA 16350-0527 | Oil & Gas Operator | Dec 2008 |
| 2514 | Bearcat Oil Co LLC | Sugar Grove, PA 16350-4032 | Oil & Gas Operator | Dec 2024 |
| 2515 | Bearcat Petroleum Inc | | Oil Operator | Dec 1991 |
| 2516 | Bearco Operating Co., Inc. | Olney, TX 76374 | Oil & Gas Operator | May 2019 |
| 2517 | Beard And Ganey | | Oil & Gas Operator | Oct 1986 |
| 2518 | Beard English & Martin | Bartlesville, OK 74003 | Oil Operator | Nov 2005 |
| 2519 | Beard Oil Compan | | Oil & Gas Operator | Jul 1987 |
| 2520 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 2521 | Beard Oil Company, LLC | Edna, TX 77957 | Oil & Gas Operator | Apr 2025 |
| 2522 | Beard, J / McIlnay & Assoc | Casper, WY 82604 | Oil & Gas Operator | Aug 1996 |
| 2523 | Beardmore Oil & Gas Co | Vincent, OH 45784-0127-0127 | Oil & Gas Operator | Dec 2023 |
| 2524 | Beartooth Oil & Gas Company | Billings, MT 59103 | Oil & Gas Operator | Feb 2025 |
| 2525 | Beasley Oil Company | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 2020 |
| 2526 | Beasley Well Service Inc. | Tuscola, TX 79562 | Oil Operator | Apr 2025 |
| 2527 | Beasley, Kenneth | Abilene, TX 79602 | Oil & Gas Operator | Apr 2025 |
| 2528 | Beasley, Melissa | | Oil Operator | May 2022 |
| 2529 | Beatty, Dennis | Fordsville, KY 42343 | Oil Operator | Dec 2015 |
| 2530 | Beau Coup Oil& Gas Corporation | | Oil & Gas Operator | Feb 1986 |
| 2531 | Beauregard Production Co Inc | | Oil Operator | Dec 2014 |
| 2532 | Beauty VIew Farm, L.P. | Batavia, NY 14020 | Gas Operator | Dec 2023 |
| 2533 | Beaver Oil & Gas Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 2534 | Beaver Oil Company Inc | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2020 |
| 2535 | Beaver Oil Company, A General Partnership | Beaver, OK 73792 | Gas Operator | Aug 2022 |
| 2536 | Beaver Operating Company, LLC | | Oil & Gas Operator | Oct 2024 |
| 2537 | Beaver Unit (The) | Great Bend, KS 67530 | Oil Operator | Jul 1989 |
| 2538 | Beavers' Production | | Oil Operator | May 1997 |
| 2539 | Bebco Parts Industries, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Apr 2025 |
| 2540 | Bec Corp | Midland, TX 79702 | Oil & Gas Operator | Jan 2014 |
| 2541 | Becca Oil LLC | Cushing, OK 74023-1347 | Oil & Gas Operator | Jan 2025 |
| 2542 | Bech Oil & Gas | Lowell, AR 72745 | Gas Operator | Dec 2024 |
| 2543 | Bech Oil & Gas, Inc. | | Oil & Gas Operator | Mar 1994 |
| 2544 | Bechel Oil LLC | Maiden Rock, WI 54750 | Oil Operator | Feb 2022 |
| 2545 | Bechtel Energy PTNR LTD PRTNRS | | Oil & Gas Operator | Jan 1996 |
| 2546 | Bechtel Energy Resources Corp. | Houston, TX 77210 | Oil & Gas Operator | Jun 1996 |
| 2547 | Bechtel Petroleum Operations Inc. | | Oil & Gas Operator | Dec 1997 |
| 2548 | Beck Energy Corporation | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2023 |
| 2549 | Beck George N | Murrysville, PA 15668-9635 | Oil & Gas Operator | Dec 2016 |
| 2550 | Beck James L | Pleasantville, PA 16341-2718 | Oil Operator | Dec 2004 |
| 2551 | Beck Oil & Gas Inc. | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2023 |
| 2552 | Beck Oil Company | | Oil Operator | Sep 1996 |
| 2553 | Beck Oil Inc | | Oil & Gas Operator | Jan 2025 |
| 2554 | Beck Pump & Supply Inc | Hennessey, OK 73742-0175 | Oil & Gas Operator | Nov 2019 |
| 2555 | Beck Resources Incorporated | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2025 |
| 2556 | Becker Oil Corpo | | Oil & Gas Operator | Dec 1996 |
| 2557 | Becker Oil Corporation | Ponca City, OK 74602 | Oil & Gas Operator | Jan 2025 |
| 2558 | Becker, Clyde M. | Ponca City, OK 74601 | Oil & Gas Operator | Oct 2009 |
| 2559 | Becker, Lavern | Russell, KS 67665 | Oil Operator | Oct 1995 |
| 2560 | Beckham Oil Co | Jal, NM 88252 | Oil & Gas Operator | Nov 2009 |
| 2561 | Beckham Resources, Inc. | Houston, TX 77010 | Oil & Gas Operator | Mar 2011 |
| 2562 | Beckman Production Services Inc | | Oil Operator | Jan 2025 |
| 2563 | Beckner Energy Resources LLC | | Oil & Gas Operator | Dec 2022 |
| 2564 | Becktol Linda G | Morris, OK 74445 | Oil & Gas Operator | Nov 2024 |
| 2565 | Beckville Disp Operations, LLC | Henderson, TX 75652 | Oil Operator | Apr 2025 |
| 2566 | Becsul Energy | Oklahoma City, OK 73127 | Oil Operator | Jan 1992 |
| 2567 | Becsul Energy Inc | Oklahoma City, OK 73127-4249 | Oil & Gas Operator | Jan 2025 |
| 2568 | Bedford Energy Inc | Oklahoma City, OK 73112-4731 | Oil & Gas Operator | Sep 2016 |
| 2569 | Bedford Oil & Gas, Inc. | Luling, TX 78648 | Oil & Gas Operator | Apr 2025 |
| 2570 | Bedrock Production, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 2571 | Bee Cee Inc | Denton, TX 76206-0689 | Oil & Gas Operator | May 2013 |
| 2572 | Bee-Jay Energy | Whiteface, TX 79379 | Oil & Gas Operator | Nov 1993 |
| 2573 | Bee-Jay Petro, Inc. | Levelland, TX 79336 | Oil & Gas Operator | Jun 2024 |
| 2574 | Beebe And Beebe | | Oil & Gas Operator | Jun 2000 |
| 2575 | Beebe Exploration Co, LLC | El Dorado, AR 71730 | Oil Operator | Dec 2024 |
| 2576 | Beech Grove Minerals, LLC | Calhoun, KY 42327 | Oil Operator | Dec 2023 |
| 2577 | Beech Resources LLC | Williamsport, PA 17701-6209 | Gas Operator | Jan 2025 |
| 2578 | Beechlick Oil, Inc. | Salem, WV 26426-5522 | Oil & Gas Operator | Dec 2021 |
| 2579 | Beeda Oil Company | Merkel, TX 79536 | Oil & Gas Operator | Apr 2025 |
| 2580 | Beehive Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 2581 | Beekay Company | Dallas, TX 75219 | Oil & Gas Operator | Dec 1996 |
| 2582 | Beeler Phillip F | Norman, OK 73072-7522 | Oil & Gas Operator | Dec 2014 |
| 2583 | Beem Oil & Gas Company | | Oil & Gas Operator | Dec 1994 |
| 2584 | Beeman Oil & Gas LLC | | Oil & Gas Operator | Feb 2025 |
| 2585 | Beene, Tommy H. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2005 |
| 2586 | Beeson Energy, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Apr 2025 |
| 2587 | Beeson, Richard W | | Oil Operator | Dec 2022 |
| 2588 | Befco Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 1993 |
| 2589 | Behlen Incorporated | | Oil Operator | Jun 2001 |
| 2590 | Behm Energy, Inc. | Minot, ND 58702 | Oil & Gas Operator | Feb 2025 |
| 2591 | Beisch & Hanna | Windthorst, TX 76389 | Oil & Gas Operator | Apr 2025 |
| 2592 | Beisch, Larry | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2025 |
| 2593 | Beisch, Rusty | Windthorst, TX 76389 | Oil & Gas Operator | Apr 2025 |
| 2594 | Beisser Agnes Gas & Oil | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1996 |
| 2595 | Bejo Corporation | Richmond, TX 77407 | Oil & Gas Operator | Apr 2025 |
| 2596 | Bel Oil Corporation | Jenks, OK 74037 | Oil & Gas Operator | Jun 2005 |
| 2597 | Bel Oil Corporation, Etal | | Oil & Gas Operator | May 1987 |
| 2598 | Belcher James A | Piedmont, OK 73078-7821 | Oil & Gas Operator | Jun 2018 |
| 2599 | Belco Development Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 1994 |
| 2600 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |