| 2601 | Belco Operating Corp. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
| 2602 | Belco Petroleum Corp | Grand Junction, CO | Oil & Gas Operator | Dec 1983 |
| 2603 | Belcor Inc. | Irvine, CA 92714 | Oil & Gas Operator | Nov 2000 |
| 2604 | Belden & Blake | | Oil & Gas Operator | Feb 1988 |
| 2605 | Belden & Blake Corporation | North Canton, OH 44720-0500-0500 | Oil & Gas Operator | Dec 2016 |
| 2606 | Belden And Blake Corp Dba Ward Lake Energy | | Oil & Gas Operator | Jul 2020 |
| 2607 | Belden Brick Co LLC, The | Sugar Creek, OH 44681 | Oil & Gas Operator | Dec 2024 |
| 2608 | Belisarius LTD | Grove, OK 74344-7445 | Gas Operator | Sep 2014 |
| 2609 | Belisle Pete H | Tulsa, OK 74133 | Oil & Gas Operator | Apr 2015 |
| 2610 | Belknap Enterprises | Exchange, WV 26619 | Gas Operator | Dec 2021 |
| 2611 | Bell & Kinley Company | Piedmont, OK 73078 | Oil & Gas Operator | Aug 2017 |
| 2612 | Bell & Kinley Company LLC | Piedmont, OK 73078-8918 | Oil & Gas Operator | Jul 2021 |
| 2613 | Bell And Gault Drilling Inc | | Oil & Gas Operator | Apr 2001 |
| 2614 | Bell Brothers | | Oil Operator | Dec 2024 |
| 2615 | Bell Drilling & Prod Co | Logan, OH 43138-502-502 | Oil & Gas Operator | Dec 1997 |
| 2616 | Bell Energy | Kermit, TX 79745 | Oil & Gas Operator | Apr 2025 |
| 2617 | Bell Jack | Beggs, OK 74421-2107 | Oil & Gas Operator | Apr 2020 |
| 2618 | Bell John E & Sons | Bremen, OH 43107 | Oil & Gas Operator | Dec 1998 |
| 2619 | Bell Oil | Junction City, OH 43748 | Oil & Gas Operator | Dec 2023 |
| 2620 | Bell Oil Company | | Oil & Gas Operator | Oct 1985 |
| 2621 | Bell Resources Inc | Billings, MT 59104 | Oil & Gas Operator | Jun 2016 |
| 2622 | Bell Supply Co | Kilgore, TX 75662 | Oil & Gas Operator | Jan 2013 |
| 2623 | Bell, Cody, Jr. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 2624 | Bell, Johnny Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2025 |
| 2625 | Bell, Kelly Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 1995 |
| 2626 | Bell, O. M. | Merkel, TX 79536 | Oil & Gas Operator | Mar 2008 |
| 2627 | Bell, Robert | Edmonton, KY 42129 | Oil Operator | Dec 2023 |
| 2628 | Bellah & Mathiews | Woodson, TX 76491 | Oil & Gas Operator | Apr 2025 |
| 2629 | Bellah Oil, Inc. | Seymour, TX 76380 | Oil & Gas Operator | Dec 2012 |
| 2630 | Bellaire Oil Company | | Oil & Gas Operator | Dec 2024 |
| 2631 | Bellco Materials Inc | Fayetteville, AR 72703 | Oil Operator | Mar 2015 |
| 2632 | Bellco, LLC | Edmonton, KY 42129 | Oil Operator | Dec 2023 |
| 2633 | Belle Exploration, Inc. | | Oil & Gas Operator | Jun 2021 |
| 2634 | Belle Oil, Inc. | | Oil & Gas Operator | Jan 2025 |
| 2635 | Bellevue Resources Inc | Lakewood, CO 80235 | Oil & Gas Operator | Feb 2009 |
| 2636 | Bellmyer, Fred L | Caney, KS 67333 | Oil Operator | May 1997 |
| 2637 | Bellnorth Petrol | | Oil Operator | Aug 1986 |
| 2638 | Bellomo, David And Leah | Amherst, NY 14228 | Gas Operator | Dec 2023 |
| 2639 | Bellows Operating Co., L. C. | Goliad, TX 77963 | Oil & Gas Operator | Apr 2025 |
| 2640 | Bellows, Dewey Oper. Co., LTD. | Refugio, TX 78377 | Oil & Gas Operator | Jul 2013 |
| 2641 | Bellows, Richard | Three Rivers, TX 78071 | Oil & Gas Operator | Nov 2008 |
| 2642 | Bellwether Exploration Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 2643 | Belmac, Inc. | Dallas, TX 75248 | Oil & Gas Operator | Nov 1998 |
| 2644 | Belmar Oil & Gas, Inc. | Milano, TX 76556 | Oil & Gas Operator | Apr 2025 |
| 2645 | Belnorth Petroleum Corporation | Midland, TX 79701 | Oil & Gas Operator | Feb 1991 |
| 2646 | Below Ground Level LLC | Sand Springs, OK 74063 | Oil & Gas Operator | Apr 2025 |
| 2647 | Belport Oil, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Dec 2024 |
| 2648 | Belridge Energy Resources Inc. | | Oil & Gas Operator | Dec 2024 |
| 2649 | Belter Inc. | Seymour, TX 76380 | Oil Operator | Apr 2025 |
| 2650 | Belvan Corp. | Midland, TX 79701 | Oil & Gas Operator | Jun 1998 |
| 2651 | Belvoir Energy Inc. | Dorset, OH 44032 | Oil & Gas Operator | Dec 2017 |
| 2652 | Bemco, LLC | Medicine Lodge, KS 67104 | Oil Operator | Dec 2024 |
| 2653 | Ben Carroll | | Oil Operator | Dec 1985 |
| 2654 | Benatty Corp., The | Cambridge, OH 43725-1002-1002 | Oil & Gas Operator | Dec 1996 |
| 2655 | Bench Oil | Duncan, OK 73533 | Oil Operator | Apr 2014 |
| 2656 | Benchley Donald C | | Oil Operator | Jul 2012 |
| 2657 | Benchley Donald P And Benchley Jeffrey P | | Oil Operator | Dec 2020 |
| 2658 | Benchmark Crude Inc | Tulsa, OK 74105-5920 | Oil & Gas Operator | Sep 2015 |
| 2659 | Benchmark Energy LLC | Pratt, KS 67124 | Oil & Gas Operator | Sep 2023 |
| 2660 | Benchmark Oil & | | Oil Operator | Dec 1996 |
| 2661 | Benchmark Oil & Gas Co. | Houston, TX 77282 | Oil & Gas Operator | Apr 2025 |
| 2662 | Benchmark Oil & Gas Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2016 |
| 2663 | Benchmark Resources Group LTD | Sapulpa, OK 74066-3238 | Oil & Gas Operator | Dec 2000 |
| 2664 | Benchmark Texas Petroleum, LLC. | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2025 |
| 2665 | Benco Energy Inc | Tionesta, PA 16353-5851 | Oil & Gas Operator | Dec 2002 |
| 2666 | Benco Operating, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 2667 | Bend Petroleum Corp | Muenster, TX 76252 | Oil & Gas Operator | Nov 2023 |
| 2668 | Bender, James J. | | Oil & Gas Operator | Dec 2021 |
| 2669 | Bendorf Services & Supply Co | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2000 |
| 2670 | Bendorf, Otto Trust | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2000 |
| 2671 | Benedum Interests | Pittsburgh, PA 15222-1794 | Gas Operator | Dec 2003 |
| 2672 | Benelli Oil LLC | | Oil Operator | Dec 2023 |
| 2673 | Bengal Oil & Gas, Inc. | | Gas Operator | Mar 2006 |
| 2674 | Bengal Petroleum USA, LLC | Austin, TX 78767 | Oil Operator | Apr 2025 |
| 2675 | Bengalia Land And Cattle Company | Tulsa, OK 74152 | Oil & Gas Operator | Dec 2024 |
| 2676 | Bengston Oil, LLC | Windom, KS 67491 | Oil Operator | Aug 2024 |
| 2677 | Bengtson, Earl L. | Salina, KS 67401 | Oil Operator | Mar 2007 |
| 2678 | Benjamin Smeltzer Company | Newport, OH 45768 | Oil & Gas Operator | Dec 2024 |
| 2679 | Benn Oil & Gas | Perryton, TX 79070 | Oil & Gas Operator | Jun 2005 |
| 2680 | Bennd Oil Company | Adams, TN 37010-8002 | Oil Operator | Jan 2025 |
| 2681 | Bennett & Schult | | Oil Operator | Jul 1995 |
| 2682 | Bennett & Schulte Oil Co., A General Partnership | Russell, KS 67665 | Oil Operator | Dec 2024 |
| 2683 | Bennett Oil | Dale, TX 78616 | Oil & Gas Operator | Sep 2000 |
| 2684 | Bennett Oil Comp | | Oil Operator | Mar 1992 |
| 2685 | Bennett Oil Company, LLC | Russell, KS 67665 | Oil Operator | Dec 2024 |
| 2686 | Bennett Petroleum Corporation | Denver, CO 80203 | Oil Operator | Jun 1985 |
| 2687 | Bennett Petroleum Inc. | | Oil & Gas Operator | Dec 2024 |
| 2688 | Bennett Production Corporation | Bowie, TX 76230 | Oil & Gas Operator | Apr 2024 |
| 2689 | Bennett Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 2690 | Bennett, M. Brad Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2005 |
| 2691 | Bennett, M. Brad LP | Midland, TX 79710 | Oil & Gas Operator | Jan 2006 |
| 2692 | Bennett, M. Troy, Jr. | Freer, TX 78357 | Oil & Gas Operator | Apr 2025 |
| 2693 | Bennett, Mills Estate | Houston, TX 77057 | Oil & Gas Operator | Sep 1995 |
| 2694 | Bennett, Patricia | Dale, TX 78616 | Oil & Gas Operator | Apr 2025 |
| 2695 | Bennett, R. C., Company | Midland, TX 79702 | Oil & Gas Operator | Dec 2019 |
| 2696 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 2697 | Benson Energy LLC | Smethport, PA 16749-5316 | Oil & Gas Operator | Dec 2024 |
| 2698 | Benson Mineral G | | Oil & Gas Operator | Dec 1995 |
| 2699 | Benson Mineral Group Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 2700 | Benson Operating LLC | The Colony, TX 75056-3578 | Oil & Gas Operator | Jan 2025 |