| 2401 | Bayou State And Caldwell Oil | | Oil Operator | Dec 2024 |
| 2402 | Bayou State Oil Corporation | | Oil & Gas Operator | Dec 2024 |
| 2403 | Bayridge Texas Corp. | Big Spring, TX 79720 | Oil & Gas Operator | Jul 2004 |
| 2404 | Bays Exploration Inc | Oklahoma City, OK 73116-9044 | Oil & Gas Operator | Aug 2025 |
| 2405 | Bayshore Exploration LLC | Bellville, TX 77418 | Oil & Gas Operator | Dec 2016 |
| 2406 | Bayshore Operating Co. | Ingleside, TX 78362 | Oil & Gas Operator | Mar 2009 |
| 2407 | Bayshore Operating Corp., L.L.C. | Luling, TX 78648 | Oil Operator | Dec 2025 |
| 2408 | Bayshore-Long Beach LLC | | Oil & Gas Operator | Dec 2000 |
| 2409 | Bayswater Exploration & Production LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2025 |
| 2410 | Bayswater Operating Company LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2025 |
| 2411 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 2412 | Baytex Energy USA LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2014 |
| 2413 | Baytex Energy USA LTD | | Oil & Gas Operator | Sep 2014 |
| 2414 | Baytex Energy USA, Inc. | Houston, TX 77084 | Oil & Gas Operator | Dec 2025 |
| 2415 | Baytex USA Development, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2017 |
| 2416 | Baytide Petr. Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Dec 1997 |
| 2417 | BB & D Exploration, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jan 2009 |
| 2418 | BB-Southtex, LLC | San Antonio, TX 78259 | Oil & Gas Operator | Oct 2024 |
| 2419 | BBC Production Company Inc. | Pottstown, PA 19464 | Oil Operator | Dec 2025 |
| 2420 | BBC&D Enterprises, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jan 2024 |
| 2421 | Bbe Production Co. | Haskell, TX 79521 | Oil & Gas Operator | May 1997 |
| 2422 | Bbe Production, LLC | Haskell, TX 79521 | Oil Operator | Dec 2025 |
| 2423 | BBH Operating Company | | Oil & Gas Operator | Feb 1986 |
| 2424 | BBHP Oilfield Services LLC | Kilgore, TX 75662 | Oil Operator | Dec 2025 |
| 2425 | BBL Operating Company LLC | Colleyville, TX 76034 | Oil & Gas Operator | Dec 2025 |
| 2426 | BBS Oil Field Services Inc | Post, TX 79356 | Oil & Gas Operator | Dec 2025 |
| 2427 | BBX Operating Co. LLC | Austin, TX 78738 | Oil & Gas Operator | Jun 2025 |
| 2428 | BBX Operating, L.L.C. | Austin, TX 78738 | Oil & Gas Operator | Dec 2025 |
| 2429 | BC & D Operating Inc. | Hobbs, NM 88240 | Oil & Gas Operator | Aug 2025 |
| 2430 | BC Development, LP | Midland, TX 79710 | Oil & Gas Operator | Sep 2005 |
| 2431 | BC Exploration, LLC | Dallas, TX 75201 | Gas Operator | Dec 2025 |
| 2432 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 2433 | BC Operations LLC | Lewisburg, KY 42256 | Oil Operator | Dec 2023 |
| 2434 | BCD Prop Inc | Waterford, PA 16441-0338 | Oil & Gas Operator | Dec 2023 |
| 2435 | Bce-Mach II LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Dec 2025 |
| 2436 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Dec 2025 |
| 2437 | Bce-Mach LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Sep 2025 |
| 2438 | BCF Operating, LLC | | Oil & Gas Operator | Nov 2024 |
| 2439 | BCF Resources, LLC | | Oil Operator | Jun 2023 |
| 2440 | BCGG-KKST 1985 L | | Gas Operator | Oct 1988 |
| 2441 | BCL Operating, LLC | Houston, TX 77269 | Oil & Gas Operator | Dec 2025 |
| 2442 | BCM Energy Louisiana LLC | | Oil Operator | May 2014 |
| 2443 | BCM Energy Operating LLC | Lafayette, LA 70503 | Oil Operator | Jun 2015 |
| 2444 | Bco Inc | Santa Fe, NM BADADDR | Oil & Gas Operator | Jan 1995 |
| 2445 | BCP Energy Inc | Cleveland, OH 44115 | Oil & Gas Operator | Dec 1993 |
| 2446 | BCP Resources, LLC | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 2447 | BD Operating LLC | Artesia, NM 88210 | Oil & Gas Operator | Sep 2025 |
| 2448 | BDB LLC | Hennessey, OK 73742 | Oil & Gas Operator | Dec 2017 |
| 2449 | Bde Energy Solutions LLC | Bedford, TX 76021 | Oil Operator | Dec 2025 |
| 2450 | BDH Oil Inc | Bradford, PA 16701 | Oil Operator | Dec 2006 |
| 2451 | BDH Technology, Inc. | Conroe, TX 77304 | Oil & Gas Operator | Mar 2001 |
| 2452 | Bdi Operating, LLC | Addison, TX 75001 | Oil Operator | Feb 2025 |
| 2453 | BDR Energy Corporation | Corpus Chrsti, TX 78463 | Oil & Gas Operator | Mar 1998 |
| 2454 | BDW Oil Company LLC | Chanute, KS 66720 | Oil Operator | Oct 2020 |
| 2455 | Be Anadarko II, LLC | Austin, TX 78731 | Oil & Gas Operator | Dec 2025 |
| 2456 | Be Anadarko LLC | Wimberley, TX 78676-4418 | Oil & Gas Operator | Jan 2024 |
| 2457 | Be-Co Energy Cor | | Oil & Gas Operator | Mar 1986 |
| 2458 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 2459 | Beach Oil & Gas, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Dec 2025 |
| 2460 | Beach Operating Company | Tulsa, OK 74136-5577 | Oil & Gas Operator | Mar 2013 |
| 2461 | Beach Supply Co. | | Oil Operator | Dec 1987 |
| 2462 | Beach-Hollenshead TSTG & SVCS Inc. | | Oil Operator | Jan 2004 |
| 2463 | Beachtex Oil Company, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Dec 2025 |
| 2464 | Beacon E&P Company, LLC | Denver, CO 80202 | Gas Operator | Feb 2016 |
| 2465 | Beacon Energy Corporation (1) | Fredericksbrg, TX 78624 | Gas Operator | Sep 2002 |
| 2466 | Beacon Explorati | | Oil Operator | Apr 1987 |
| 2467 | Beacon Oil Company | | Oil Operator | Dec 1985 |
| 2468 | Beacon Petroleum Corporation | | Oil & Gas Operator | Jan 1992 |
| 2469 | Beacon Petroleum MGMT.,Inc. | Dallas, TX 75244 | Oil & Gas Operator | Mar 1997 |
| 2470 | Beaird, R.A. Oil Operating Co. | Merkel, TX 79536 | Oil & Gas Operator | Dec 2025 |
| 2471 | Beall, Roscoe C. III | Davis, WV 26260-0000 | Gas Operator | Dec 2020 |
| 2472 | Bean & Bean Inc. | Houston, TX 77269 | Oil & Gas Operator | Jan 2023 |
| 2473 | Bean Energy, Inc. | | Oil & Gas Operator | Dec 1986 |
| 2474 | Bean Resources, Inc | | Oil & Gas Operator | Aug 2006 |
| 2475 | Bear Creek Energy, LLC | Sealy, TX 77474 | Oil Operator | Dec 2025 |
| 2476 | Bear Creek Env. Systems, LLC | | Oil Operator | Dec 2008 |
| 2477 | Bear Creek Operating | Pampa, TX 79066 | Oil & Gas Operator | Dec 2025 |
| 2478 | Bear Creek Services, LLC | | Oil Operator | Dec 2024 |
| 2479 | Bear Energy LLC | Drumright, OK 74030-0311 | Oil & Gas Operator | Apr 2022 |
| 2480 | Bear Lake Energy | Sugar Grove, PA 16350-2104 | Gas Operator | Dec 2024 |
| 2481 | Bear Minerals LLC | Dallas, TX 75214 | Oil Operator | Jan 2025 |
| 2482 | Bear Of Texas, Inc. | Grand Rapids, MI 49546 | Oil & Gas Operator | Mar 2008 |
| 2483 | Bear Oil And Gas Inc | Las Vegas, NV 89107 | Oil & Gas Operator | Jul 2016 |
| 2484 | Bear Petroleum | | Oil & Gas Operator | Dec 1996 |
| 2485 | Bear Petroleum Inc | Haysville, KS 67060-0438 | Oil & Gas Operator | Mar 2015 |
| 2486 | Bear Petroleum LLC | Haysville, KS 67060 | Oil & Gas Operator | Jun 2025 |
| 2487 | Bear Productions Inc | Kinta, OK 74552 | Oil & Gas Operator | Aug 2025 |
| 2488 | Bear Springs Oil & Gas, L.L.C | Gorman, TX 76454 | Oil & Gas Operator | Dec 2025 |
| 2489 | Bearcat Energy LLC (Colorado) | Denver, CO 80202 | Oil & Gas Operator | May 2022 |
| 2490 | Bearcat Oil Co | Sugar Grove, PA 16350-0527 | Oil & Gas Operator | Dec 2008 |
| 2491 | Bearcat Oil Co LLC | Sugar Grove, PA 16350-4032 | Oil & Gas Operator | Dec 2024 |
| 2492 | Bearcat Petroleum Inc | | Oil Operator | Dec 1991 |
| 2493 | Bearco Operating Co., Inc. | Olney, TX 76374 | Oil & Gas Operator | May 2019 |
| 2494 | Beard And Ganey | | Oil & Gas Operator | Oct 1986 |
| 2495 | Beard English & Martin | Bartlesville, OK 74003 | Oil Operator | Nov 2005 |
| 2496 | Beard Oil Compan | | Oil & Gas Operator | Jul 1987 |
| 2497 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 2498 | Beard Oil Company, LLC | Edna, TX 77957 | Oil & Gas Operator | Dec 2025 |
| 2499 | Beard, J / McIlnay & Assoc | Casper, WY 82604 | Oil & Gas Operator | Aug 1996 |
| 2500 | Beardmore Oil & Gas Co | Vincent, OH 45784 | Oil & Gas Operator | Dec 2024 |