| 2601 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Sep 2026 |
| 2602 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Jul 2026 |
| 2603 | Berentz Drilling | | Oil Operator | Jul 1995 |
| 2604 | Berentz Drilling Co., Inc. | Wichita, KS 67278 | Oil Operator | May 2026 |
| 2605 | Berexco Inc. | Wichita, KS 67208 | Oil & Gas Operator | Oct 2009 |
| 2606 | Berexco Incorpor | | Oil & Gas Operator | Dec 1996 |
| 2607 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Sep 2026 |
| 2608 | Berg Laney & Brown | Smackover, AR 71762 | Oil & Gas Operator | Jul 1995 |
| 2609 | Berg, Laney & Brown Company | Camden, AR 71701 | Oil Operator | Jan 2025 |
| 2610 | Bergen Floyd | Norman, OK 73072 | Oil & Gas Operator | Mar 2015 |
| 2611 | Berger Oil Company | Edmond, OK 73013-2044 | Oil Operator | Mar 2015 |
| 2612 | Bergman Arthur And VIvian | | Oil & Gas Operator | Dec 2008 |
| 2613 | Bergman Oil Co., L.C. | Wichita, KS 67202 | Oil Operator | Sep 2007 |
| 2614 | Bergman Oil Comp | | Oil Operator | Mar 1995 |
| 2615 | Bergman Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Feb 1994 |
| 2616 | Bergman, Anna F. Trust, A General Partnership | Shawnee, KS 66203 | Oil Operator | Nov 2019 |
| 2617 | Bering Operating Company, Inc. | Tyler, TX 75701 | Oil & Gas Operator | May 2001 |
| 2618 | Berkley Petroleum Inc. | | Oil & Gas Operator | Dec 2007 |
| 2619 | Berkshire Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 2620 | Berkshire Woodlawn Field, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2007 |
| 2621 | Berky Resources | | Oil & Gas Operator | Sep 1994 |
| 2622 | Bernard/Hickox, Inc. | | Oil & Gas Operator | May 1998 |
| 2623 | Berner, Mark A. | Darien Center, NY 14040 | Gas Operator | Dec 2025 |
| 2624 | Berner, William F. | Elma, NY 14059 | Gas Operator | Dec 2025 |
| 2625 | Berresford Enterprises In | Akron, OH 44311 | Oil & Gas Operator | Dec 1994 |
| 2626 | Berry Energy Companies | Abilene, TX 79608 | Oil & Gas Operator | Sep 2026 |
| 2627 | Berry Energy Inc*Walter | | Oil & Gas Operator | Aug 2016 |
| 2628 | Berry Energy, Inc. | Clarksburg, WV 263012252 | Oil & Gas Operator | Dec 2021 |
| 2629 | Berry James E | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1996 |
| 2630 | Berry Oil Comp. | Houston, TX 77002 | Oil & Gas Operator | Jul 2014 |
| 2631 | Berry Oil Company, LLC | Bakersfield, CA 93311 | Oil & Gas Operator | Apr 2019 |
| 2632 | Berry Operating Company | Stillwater, OK 74076-0518 | Oil & Gas Operator | Dec 2016 |
| 2633 | Berry Patterson Enterprises, LLC | Smyer, TX 79367 | Oil Operator | Sep 2026 |
| 2634 | Berry Petroleum Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2014 |
| 2635 | Berry Petroleum Company LLC | Bakersfield, CA 93311 | Oil & Gas Operator | Jul 2026 |
| 2636 | Berry, Gus | Okmulgee, OK 74447 | Oil & Gas Operator | Feb 1996 |
| 2637 | Berry, O. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 2638 | Berry, Richard A | Henderson, KY 42420 | Oil Operator | Dec 2023 |
| 2639 | Berry, Thomas N. & Co. | Stillwater, OK 74076 | Oil & Gas Operator | Feb 2012 |
| 2640 | Bert & Glen Loe | | Oil Operator | Jul 1979 |
| 2641 | Bert Fields, Jr. | | Oil & Gas Operator | Nov 1986 |
| 2642 | Bertram Oil Company, Inc. | Corpus Chrsti, TX 78475 | Oil & Gas Operator | Oct 1995 |
| 2643 | Bertram Paul G Jr | Marietta, OH 45750 | Oil & Gas Operator | Dec 1992 |
| 2644 | Bertram Resources Inc | Lexington, KY 40509 | Oil & Gas Operator | Dec 2024 |
| 2645 | Bertschinger Oil Company | Oklahoma City, OK 73116-6534 | Oil & Gas Operator | Nov 2015 |
| 2646 | Berwell Energy Inc | Columbus, OH 43221 | Oil & Gas Operator | Dec 1987 |
| 2647 | Beryl Oil And Gas, LP | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 2648 | Besco Operating, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2026 |
| 2649 | Best John B | | Oil & Gas Operator | Dec 2018 |
| 2650 | Best Petroleum Explorations,Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2026 |
| 2651 | Bestmark Production Inc | Yukon, OK 73099 | Oil & Gas Operator | Mar 2011 |
| 2652 | Besto Oil & Gas, Inc. | Odessa, TX 79768 | Oil & Gas Operator | Oct 2018 |
| 2653 | Bet-Ro, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Sep 2026 |
| 2654 | Beta Gas & Oil, Inc. | Tulsa, OK 74136 | Oil Operator | Jun 2001 |
| 2655 | Beta Helix Energy LLC | Smithville, WV 26178 | Oil & Gas Operator | Dec 2021 |
| 2656 | Beta Oil Company Inc | Oklahoma City, OK 73157-2958 | Oil & Gas Operator | Nov 2025 |
| 2657 | Beta Oil Corporation | San Antonio, TX 78232 | Oil & Gas Operator | Sep 2026 |
| 2658 | Beta Oil Inc | | Oil Operator | Feb 1986 |
| 2659 | Beta Operating Company, LLC | Houston, TX 77210 | Oil & Gas Operator | Apr 2020 |
| 2660 | Beta Operating, Inc | | Oil & Gas Operator | May 2001 |
| 2661 | Beta-Tex, An Oklahoma Corp. | Oklahoma City, OK 73157 | Oil & Gas Operator | Aug 2024 |
| 2662 | Beth Ann Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Jul 2001 |
| 2663 | Bethany Camp Fellowship Of Independent Baptist | Sinclairville, NY 14782 | Gas Operator | Dec 2025 |
| 2664 | Bethel Oil & Gas Co | Marietta, OH 45750-6710 | Oil & Gas Operator | Dec 2019 |
| 2665 | Bethel Oil And Gas LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2025 |
| 2666 | Bethlan Production Corporation | | Oil & Gas Operator | Dec 1994 |
| 2667 | Betop Inc | Ojai, CA 83203 | Oil & Gas Operator | Dec 1996 |
| 2668 | Bets Oil & Gas | Pawhuska, OK 74056 | Oil & Gas Operator | Nov 2018 |
| 2669 | Betsy Production Company, Inc. | Magnolia, AR 71753 | Oil & Gas Operator | Dec 2025 |
| 2670 | Bettis Boyle & Stovall,Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2022 |
| 2671 | Bettis Brothers Inc | Graham, TX 76046 | Oil & Gas Operator | Dec 1995 |
| 2672 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 2673 | Betty L Wood Dba Able Oil Company | Morris, OK 74445-2303 | Oil & Gas Operator | Jun 2026 |
| 2674 | Betwell Oil & Gas Company | Hialeah, FL 33016 | Oil & Gas Operator | Sep 2026 |
| 2675 | Beucler Brothers Inc | Dellroy, OH 44620 | Oil & Gas Operator | Dec 2020 |
| 2676 | Beusa Energy, Inc. | Spring, TX 77380 | Oil & Gas Operator | Apr 2011 |
| 2677 | Beusa Energy, LLC | | Oil & Gas Operator | Nov 2017 |
| 2678 | Bev Exploration, Inc. | | Oil Operator | Jun 1985 |
| 2679 | Beveled Edge Productions LLC | Norman, OK 73069-4941 | Oil Operator | Dec 2019 |
| 2680 | Beveridge Patricia C | Woodsfield, OH 43793 | Oil & Gas Operator | Dec 2025 |
| 2681 | Beverly Hills Oil Co. | | Oil & Gas Operator | Dec 1979 |
| 2682 | Bevers SWD, Inc. | Lubbock, TX 79453 | Oil & Gas Operator | Sep 2026 |
| 2683 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 2684 | Bex, Inc. | Nashville, TN 37209 | Oil & Gas Operator | Aug 2007 |
| 2685 | Bexco Operating, Inc. | College Sta, TX 77845 | Oil & Gas Operator | Sep 2026 |
| 2686 | Beymer & Beymer | | Gas Operator | Dec 2009 |
| 2687 | Bez Resources LLC | Perry, OK 73077-2204 | Oil & Gas Operator | Mar 2023 |
| 2688 | BF Adventures LLC | Warren, PA 16365-8306 | Oil & Gas Operator | Dec 2025 |
| 2689 | BFD Energy Corporation | Georgetown, TX 78628 | Gas Operator | May 1998 |
| 2690 | BFP Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Sep 2026 |
| 2691 | BFS Petroleum Company | Skiatook, OK 74070-3998 | Oil & Gas Operator | Jan 2004 |
| 2692 | BG Production, LLC | Denver, NC 28037-8088 | Oil & Gas Operator | Dec 2021 |
| 2693 | BG-5, Inc. | Rantoul, KS 66079 | Oil Operator | May 2026 |
| 2694 | Bgi Resources LLC | | Oil & Gas Operator | Jun 2026 |
| 2695 | BGM Production, LLC | Borger, TX 79008 | Oil & Gas Operator | Sep 2026 |
| 2696 | BHB Oil Partners LLC | Powell, WY 82435 | Oil Operator | Oct 2025 |
| 2697 | BHB Oil, Inc | | Oil & Gas Operator | Dec 2024 |
| 2698 | BHB Operating Inc. | Fort Worth, TX 76137 | Oil & Gas Operator | Sep 2026 |
| 2699 | BHP Billiton Pet(Txla Op) Co | Denver, CO 80202 | Oil & Gas Operator | Jul 2019 |
| 2700 | BHP Billiton Petro (KCS Resources), LLC | | Oil & Gas Operator | Jul 2019 |