| 2401 | Beaver Oil Company, A General Partnership | Beaver, OK 73792 | Gas Operator | Aug 2022 |
| 2402 | Beaver Operating Company, LLC | | Oil & Gas Operator | Nov 2025 |
| 2403 | Beaver Unit (The) | Great Bend, KS 67530 | Oil Operator | Jul 1989 |
| 2404 | Beavers' Production | | Oil Operator | May 1997 |
| 2405 | Bebco Parts Industries, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Jun 2026 |
| 2406 | Bec Corp | Midland, TX 79702 | Oil & Gas Operator | Jan 2014 |
| 2407 | Becca Oil LLC | Cushing, OK 74023-1347 | Oil & Gas Operator | Apr 2026 |
| 2408 | Bech Oil & Gas | Lowell, AR 72745 | Gas Operator | Jan 2025 |
| 2409 | Bech Oil & Gas, Inc. | | Oil & Gas Operator | Mar 1994 |
| 2410 | Bechel Oil, LLC. | Maiden Rock, WI 54750 | Oil Operator | Feb 2022 |
| 2411 | Bechtel Energy PTNR LTD PRTNRS | | Oil & Gas Operator | Jan 1996 |
| 2412 | Bechtel Energy Resources Corp. | Houston, TX 77210 | Oil & Gas Operator | Jun 1996 |
| 2413 | Bechtel Petroleum Operations Inc. | | Oil & Gas Operator | Dec 1997 |
| 2414 | Beck Energy Corporation | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2025 |
| 2415 | Beck George N | Murrysville, PA 15668-9635 | Oil & Gas Operator | Dec 2016 |
| 2416 | Beck James L | Pleasantville, PA 16341-2718 | Oil Operator | Dec 2004 |
| 2417 | Beck Oil & Gas Inc. | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2025 |
| 2418 | Beck Oil & Gas, L.L.C. | Duncan, OK 73533 | Oil & Gas Operator | Apr 2026 |
| 2419 | Beck Oil Company | | Oil Operator | Sep 1996 |
| 2420 | Beck Oil Inc | | Oil & Gas Operator | Jan 2025 |
| 2421 | Beck Pump & Supply Inc | Hennessey, OK 73742-0175 | Oil & Gas Operator | Nov 2019 |
| 2422 | Beck Resources Incorporated | Hennessey, OK 73742 | Oil & Gas Operator | Mar 2026 |
| 2423 | Becker Oil Corpo | | Oil & Gas Operator | Dec 1996 |
| 2424 | Becker Oil Corporation | Ponca City, OK 74602 | Oil & Gas Operator | Mar 2026 |
| 2425 | Becker, Clyde M. | Ponca City, OK 74601 | Oil & Gas Operator | Oct 2009 |
| 2426 | Becker, Lavern | Russell, KS 67665 | Oil Operator | Oct 1995 |
| 2427 | Beckham Oil Co | Jal, NM 88252 | Oil & Gas Operator | Nov 2009 |
| 2428 | Beckham Resources, Inc. | Houston, TX 77010 | Oil & Gas Operator | Mar 2011 |
| 2429 | Beckman Production Services Inc | | Oil Operator | Jan 2026 |
| 2430 | Beckner Energy Resources LLC | | Oil Operator | Dec 2022 |
| 2431 | Becktol Linda G | Morris, OK 74445 | Oil & Gas Operator | Jun 2025 |
| 2432 | Beckville Disp Operations, LLC | Henderson, TX 75652 | Oil Operator | Jun 2026 |
| 2433 | Becsul Energy | Oklahoma City, OK 73127 | Oil Operator | Jan 1992 |
| 2434 | Becsul Energy Inc | Oklahoma City, OK 73127-4249 | Oil & Gas Operator | Mar 2026 |
| 2435 | Bedford Energy Inc | Oklahoma City, OK 73112-4731 | Oil & Gas Operator | Sep 2016 |
| 2436 | Bedford Oil & Gas, Inc. | Luling, TX 78648 | Oil & Gas Operator | Jun 2026 |
| 2437 | Bedrock Production, LLC | Fort Worth, TX 76106 | Oil & Gas Operator | May 2026 |
| 2438 | Bee Cee Inc | Denton, TX 76206-0689 | Oil & Gas Operator | May 2013 |
| 2439 | Bee-Jay Energy | Whiteface, TX 79379 | Oil & Gas Operator | Nov 1993 |
| 2440 | Bee-Jay Petro, Inc. | Levelland, TX 79336 | Oil & Gas Operator | Jun 2024 |
| 2441 | Beebe And Beebe | | Oil & Gas Operator | Jun 2000 |
| 2442 | Beebe Exploration Co, LLC | El Dorado, AR 71730 | Oil Operator | Jan 2025 |
| 2443 | Beech Resources LLC | Williamsport, PA 17701-6209 | Gas Operator | Mar 2026 |
| 2444 | Beechlick Oil, Inc. | Salem, WV 26426-5522 | Oil & Gas Operator | Dec 2021 |
| 2445 | Beeda Oil Company | Merkel, TX 79536 | Oil & Gas Operator | Jun 2026 |
| 2446 | Beehive Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 2447 | Beekay Company | Dallas, TX 75219 | Oil & Gas Operator | Dec 1996 |
| 2448 | Beeler Phillip F | Norman, OK 73072-7522 | Oil & Gas Operator | Dec 2014 |
| 2449 | Beem Oil & Gas Company | | Oil & Gas Operator | Dec 1994 |
| 2450 | Beeman Oil & Gas LLC | | Oil & Gas Operator | Apr 2026 |
| 2451 | Beene, Tommy H. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2005 |
| 2452 | Beeson Energy, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Jun 2026 |
| 2453 | Beeson, Richard W | | Oil Operator | Dec 2022 |
| 2454 | Befco Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 1993 |
| 2455 | Behlen Incorporated | | Oil Operator | Jun 2001 |
| 2456 | Behm Energy, Inc. | Minot, ND 58702 | Oil & Gas Operator | Apr 2026 |
| 2457 | Behrens Resources Inc | | Oil & Gas Operator | Jul 2019 |
| 2458 | Beisch & Hanna | Windthorst, TX 76389 | Oil & Gas Operator | Jun 2026 |
| 2459 | Beisch, Larry | Iowa Park, TX 76367 | Oil & Gas Operator | Jun 2026 |
| 2460 | Beisch, Rusty | Windthorst, TX 76389 | Oil & Gas Operator | Jun 2026 |
| 2461 | Beisser Agnes Gas & Oil | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1996 |
| 2462 | Bejo Corporation | Richmond, TX 77407 | Oil & Gas Operator | Jun 2026 |
| 2463 | Bel Oil Corporation | Jenks, OK 74037 | Oil & Gas Operator | Jun 2005 |
| 2464 | Bel Oil Corporation, Etal | | Oil & Gas Operator | May 1987 |
| 2465 | Belco Development Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 1994 |
| 2466 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 2467 | Belco Operating Corp. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
| 2468 | Belco Petroleum Corp | Grand Junction, CO | Oil & Gas Operator | Dec 1983 |
| 2469 | Belcor Inc. | Irvine, CA 92714 | Oil & Gas Operator | Nov 2000 |
| 2470 | Belden & Blake | | Oil & Gas Operator | Feb 1988 |
| 2471 | Belden & Blake Corporation | North Canton, OH 44720 | Oil & Gas Operator | Dec 2016 |
| 2472 | Belden And Blake Corp Dba Ward Lake Energy | | Oil & Gas Operator | Jul 2020 |
| 2473 | Belden Brick Co LLC, The | Sugar Creek, OH 44681 | Oil & Gas Operator | Dec 2025 |
| 2474 | Belisle Pete H | Tulsa, OK 74133 | Oil & Gas Operator | Apr 2015 |
| 2475 | Belknap Enterprises | Exchange, WV 26619 | Gas Operator | Dec 2021 |
| 2476 | Bell & Kinley Company | Piedmont, OK 73078 | Oil & Gas Operator | Aug 2017 |
| 2477 | Bell & Kinley Company LLC | Piedmont, OK 73078-8918 | Oil & Gas Operator | Jul 2021 |
| 2478 | Bell And Gault Drilling Inc | | Oil & Gas Operator | Apr 2001 |
| 2479 | Bell Brothers | | Oil Operator | Feb 2026 |
| 2480 | Bell Drilling & Prod Co | Logan, OH 43138 | Oil & Gas Operator | Dec 1997 |
| 2481 | Bell Energy | Kermit, TX 79745 | Oil & Gas Operator | Jun 2026 |
| 2482 | Bell Jack | Beggs, OK 74421-2107 | Oil & Gas Operator | Apr 2020 |
| 2483 | Bell John E & Sons | Bremen, OH 43107 | Oil & Gas Operator | Dec 1998 |
| 2484 | Bell Oil | Junction City, OH 43748 | Oil & Gas Operator | Dec 2025 |
| 2485 | Bell Oil Company | | Oil & Gas Operator | Oct 1985 |
| 2486 | Bell Resources Inc | Billings, MT 59104 | Oil & Gas Operator | Jun 2016 |
| 2487 | Bell Supply Co | Kilgore, TX 75662 | Oil & Gas Operator | Jan 2013 |
| 2488 | Bell, Cody, Jr. | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 2489 | Bell, Johnny Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jun 2026 |
| 2490 | Bell, Kelly Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 1995 |
| 2491 | Bell, O. M. | Merkel, TX 79536 | Oil & Gas Operator | Mar 2008 |
| 2492 | Bell, Robert | Edmonton, KY 42129 | Oil Operator | Dec 2023 |
| 2493 | Bellah & Mathiews | Woodson, TX 76491 | Oil & Gas Operator | Jun 2026 |
| 2494 | Bellah Oil, Inc. | Seymour, TX 76380 | Oil & Gas Operator | Dec 2012 |
| 2495 | Bellaire Oil Co | | Oil & Gas Operator | Mar 2026 |
| 2496 | Bellaire Operating LLC. | | Oil Operator | Dec 2025 |
| 2497 | Bellco Materials Inc | Fayetteville, AR 72703 | Oil Operator | Mar 2015 |
| 2498 | Belle Exploration, Inc. | | Oil & Gas Operator | Jun 2021 |
| 2499 | Belle Oil, Inc. | | Oil & Gas Operator | Apr 2026 |
| 2500 | Bellevue Resources Inc | Lakewood, CO 80235 | Oil & Gas Operator | Feb 2009 |