| 2401 | Burk-Gunn Oil Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2018 |
| 2402 | Burkan Oil Company | Tulsa, OK 74137 | Oil & Gas Operator | Dec 1995 |
| 2403 | Burkard Petroleum Company | Houston, TX 77056 | Oil & Gas Operator | May 2003 |
| 2404 | Burke Michael | Coolsville, OH 45723 | Oil & Gas Operator | Dec 2024 |
| 2405 | Burke, Harry Petroleum | Houston, TX 77080 | Oil & Gas Operator | Nov 2024 |
| 2406 | Burkett Drilling | Sunray, TX 79086 | Oil Operator | Jul 2025 |
| 2407 | Burkett, J. D. | Archer City, TX 76351 | Oil & Gas Operator | Mar 1994 |
| 2408 | Burkhart Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2002 |
| 2409 | Burkholder, Terry L., Inc. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2002 |
| 2410 | Burkland William S | Ligonier, PA 15658-0467 | Oil & Gas Operator | Dec 2010 |
| 2411 | Burleson Oil Company | Burkburnett, TX 76354 | Oil Operator | Jul 2025 |
| 2412 | Burleson Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 2413 | Burleson Production LLC | Frederick, OK 73542 | Oil Operator | May 2025 |
| 2414 | Burleson, Jackie A. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2003 |
| 2415 | Burleson, Lewis B. Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2010 |
| 2416 | Burlingame Oil, LLC | Olean, NY 14760 | Oil & Gas Operator | Dec 2024 |
| 2417 | Burlington Oil Company | Ponca City, OK 74602-1304 | Oil & Gas Operator | May 2007 |
| 2418 | Burlington Res O & G Co-McCamey | Midland, TX 79702 | Oil Operator | Mar 2002 |
| 2419 | Burlington Res O & G Co-Midland | Houston, TX 77252 | Oil & Gas Operator | Mar 2020 |
| 2420 | Burlington Res O&G Co-Permian | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 2421 | Burlington Res Offshore Inc | | Oil & Gas Operator | Oct 2002 |
| 2422 | Burlington Res Oil & Gas Co | | Oil & Gas Operator | Dec 2000 |
| 2423 | Burlington Res Oil & Gas LP | | Oil & Gas Operator | Mar 2013 |
| 2424 | Burlington Res.Oil&Gas Co.LP | Midland, TX 79710-1810 | Gas Operator | Dec 2007 |
| 2425 | Burlington Resources O&G | Midland, TX 79710-1810 | Oil & Gas Operator | Mar 1997 |
| 2426 | Burlington Resources Oil & Gas Company L | Gillette, WY 82718 | Oil & Gas Operator | Jan 2022 |
| 2427 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Jul 2025 |
| 2428 | Burlington Resources Oil & Gas LP | | Oil & Gas Operator | Feb 2020 |
| 2429 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 2430 | Burmaster, Gary | Sheridan, NY 14135 | Gas Operator | Dec 2024 |
| 2431 | Burness, William Steele Jr | Glasgow, KY 42142 | Oil Operator | Dec 2022 |
| 2432 | Burnett Corp. | Amarillo, TX 79105 | Oil & Gas Operator | May 1998 |
| 2433 | Burnett Corporat | | Oil & Gas Operator | Oct 1993 |
| 2434 | Burnett Energy Inc. | | Oil & Gas Operator | May 2025 |
| 2435 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 2436 | Burnham & Browning DRLG Co. | | Oil Operator | Oct 1990 |
| 2437 | Burns Eugene | Davis, OK 73030-3112 | Oil Operator | Mar 2006 |
| 2438 | Burns Oil & Gas Expl. | | Oil & Gas Operator | Jan 1985 |
| 2439 | Burns Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2002 |
| 2440 | Burns Operating LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2009 |
| 2441 | Burns Production Corporation | Midland, TX 79701 | Oil & Gas Operator | Jul 2008 |
| 2442 | Burns Willard & Frances | Corning, OH 43730 | Oil & Gas Operator | Dec 2020 |
| 2443 | Burns WM J | | Oil Operator | Jun 1994 |
| 2444 | Burns, Bill C. | Midland, TX 79701 | Oil & Gas Operator | Dec 1997 |
| 2445 | Burns, Gene Oil & Gas | Odessa, TX 79765 | Oil & Gas Operator | Dec 2020 |
| 2446 | Burns, P. C. Oil Producers Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2000 |
| 2447 | Burnsed Oil Co., Inc. | | Oil & Gas Operator | May 2025 |
| 2448 | Burr Oil & Gas | Farmington, NM 87499 | Oil & Gas Operator | Feb 2000 |
| 2449 | Burr Oil & Gas Inc | Farmington, NM 87499 | Oil & Gas Operator | Oct 2019 |
| 2450 | Burrill Oil | | Oil Operator | Aug 1990 |
| 2451 | Burris Energy LLC | Burlington, KS 66839 | Oil & Gas Operator | Sep 2016 |
| 2452 | Burris Ronald/Si | | Oil Operator | Jun 1992 |
| 2453 | Burris, J. R. | Manhattan, KS 66502 | Oil Operator | Dec 2019 |
| 2454 | Burrite Operating, LLC | | Oil Operator | Dec 2024 |
| 2455 | Burro Bluff Corporation | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 2456 | Burrows Alfred | Copan, OK 74022 | Oil & Gas Operator | May 2021 |
| 2457 | Burrows, Dewey | | Oil & Gas Operator | Apr 2025 |
| 2458 | Burskey David M | Carrolltown, PA 15722-0480 | Oil & Gas Operator | Dec 2024 |
| 2459 | Burt Esther M | Sperry, OK 74073 | Oil Operator | Apr 2025 |
| 2460 | Burt James & Charles Maybee | Sperry, OK 74073-8001 | Oil & Gas Operator | Nov 2014 |
| 2461 | Burtco | Lubbock, TX 79407 | Oil & Gas Operator | Jul 2025 |
| 2462 | Burton Oil Produ | | Oil Operator | Jan 1985 |
| 2463 | Burton Oil Properties | Ratliff City, OK 73081 | Oil & Gas Operator | Apr 2025 |
| 2464 | Burton Services, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 2465 | Burton, V.C. Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Sep 2016 |
| 2466 | Burton-Sutton Oil Co., Inc. | | Oil & Gas Operator | Apr 1988 |
| 2467 | Burton/Hawks Inc | Casper, WY 82602 | Oil & Gas Operator | Sep 1993 |
| 2468 | Busey Naman | Elmore City, OK 73433-9583 | Oil & Gas Operator | Mar 2025 |
| 2469 | Bush Operating | Archer City, TX 76351 | Oil & Gas Operator | Jul 2025 |
| 2470 | Bush, Mark A. Oil And Gas Inc. | Houston, TX 77057 | Oil & Gas Operator | Jul 2025 |
| 2471 | Bushwood Leasing, LLC | | Oil Operator | Dec 2024 |
| 2472 | Buss, Timothy A. & Kimberly A. | Westfield, NY 14787 | Gas Operator | Dec 2024 |
| 2473 | Bussey, Joe F. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 2474 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 2475 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 2476 | Busted Knuckle Oil & Gas LLC | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2024 |
| 2477 | Butcher Energy Corp | Newark, OH 43055 | Oil & Gas Operator | Dec 2014 |
| 2478 | Butkin Oil Company | Duncan, OK 73534-2090 | Oil & Gas Operator | Sep 2021 |
| 2479 | Butkin Oil Company LLC | Duncan, OK 73533 | Oil & Gas Operator | Mar 2023 |
| 2480 | Butler & Harbison | Olney, TX 76374 | Oil & Gas Operator | Oct 2005 |
| 2481 | Butler & Haseloff | Vernon, TX 76384 | Oil Operator | Jul 1993 |
| 2482 | Butler B F | Hobart, OK 73651 | Oil Operator | Apr 2014 |
| 2483 | Butler County Flood, Inc | Santa Monica, CA 90409 | Oil Operator | Dec 2015 |
| 2484 | Butler Larry | Bladensburg, OH 43005 | Oil & Gas Operator | Dec 2019 |
| 2485 | Butler Oil Co | Casper, WY 82602 | Oil & Gas Operator | Dec 1996 |
| 2486 | Butler Petroleum Corp | Norman, OK 73069-7111 | Oil & Gas Operator | Dec 1998 |
| 2487 | Butler Petroleum LLC | Van Alstyne, TX 75495 | Oil Operator | May 2020 |
| 2488 | Butler, C. D. | Grandfalls, TX 79742 | Oil & Gas Operator | Dec 2004 |
| 2489 | Butler, Cecil D | | Oil & Gas Operator | Apr 2025 |
| 2490 | Butler, Harold F. | Independence, KS 67301 | Oil Operator | Sep 2002 |
| 2491 | Butler, Kevin O. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 2492 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 2493 | Butte Oil And Gas Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2025 |
| 2494 | Buttes Gas & Oil Co | | Oil & Gas Operator | Dec 2009 |
| 2495 | Buttes Res Co | | Oil Operator | Dec 2023 |
| 2496 | Buttes Resources Company | Houston, TX 77056 | Oil & Gas Operator | May 2007 |
| 2497 | Buttonwood Petro | | Oil & Gas Operator | Aug 1994 |
| 2498 | Buttonwood Petroleum Inc | Tulsa, OK 74136-4234 | Oil & Gas Operator | Jan 2014 |
| 2499 | Buttram Energies Inc | Oklahoma City, OK 73112-7235 | Oil & Gas Operator | Nov 2021 |
| 2500 | Buttram Operating Company LLC | Heath, TX 75032-1931 | Oil & Gas Operator | Apr 2025 |