| 2801 | BF Adventures LLC | Warren, PA 16365-8306 | Oil & Gas Operator | Dec 2024 |
| 2802 | BFD Energy Corporation | Georgetown, TX 78628 | Gas Operator | May 1998 |
| 2803 | BFP Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Dec 2025 |
| 2804 | BFS Petroleum Company | Skiatook, OK 74070-3998 | Oil & Gas Operator | Jan 2004 |
| 2805 | BG Production, LLC | Denver, NC 28037-8088 | Oil & Gas Operator | Dec 2021 |
| 2806 | BG-5, Inc. | Rantoul, KS 66079 | Oil Operator | Jun 2025 |
| 2807 | Bgi Resources LLC | | Oil & Gas Operator | Aug 2025 |
| 2808 | BGM Production, LLC | Borger, TX 79008 | Oil & Gas Operator | Dec 2025 |
| 2809 | BHB Oil Partners LLC | Powell, WY 82435 | Oil Operator | Oct 2025 |
| 2810 | BHB Oil, Inc | | Oil & Gas Operator | Dec 2024 |
| 2811 | BHB Operating Inc. | Fort Worth, TX 76137 | Oil & Gas Operator | Dec 2025 |
| 2812 | BHP Billiton Pet(Txla Op) Co | Denver, CO 80202 | Oil & Gas Operator | Jul 2019 |
| 2813 | BHP Billiton Petro (KCS Resources), LLC | | Oil & Gas Operator | Jul 2019 |
| 2814 | BHP Billiton Petro (Txla Operating) Co. | | Gas Operator | Jul 2019 |
| 2815 | BHP Billiton Petro (WSF Operating), Inc. | | Oil & Gas Operator | Jul 2019 |
| 2816 | BHP Petroleum (Americas) | Houston, TX 77056-3020 | Oil & Gas Operator | Mar 1993 |
| 2817 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 2818 | BHP Petroleum (USA) Inc | | Oil & Gas Operator | Mar 1993 |
| 2819 | BHP Petroleum Company Inc | Houston, TX 77057 | Oil & Gas Operator | Jun 2016 |
| 2820 | BHP Petroleum, Inc. | | Oil & Gas Operator | Aug 1985 |
| 2821 | Bi Joe Development Inc | Columbus, OH 43220 | Oil & Gas Operator | Dec 2024 |
| 2822 | Bialek Oil And Gas Corporation | Harrisville, WV 26362 | Oil & Gas Operator | Dec 2021 |
| 2823 | Biblical Life Inst | Freeport, PA 16229 | Gas Operator | Dec 2024 |
| 2824 | Bibs Oil Corpora | | Oil & Gas Operator | Apr 1987 |
| 2825 | Bickham G C Inc | Ada, OK 74820-8304 | Oil Operator | Jun 2017 |
| 2826 | Bickle Energies LLC | Hays, KS 67601 | Oil Operator | Dec 2019 |
| 2827 | Biddy Audrian Q | Okemah, OK 74859 | Oil & Gas Operator | Aug 2013 |
| 2828 | Bieberle Oil & Gas Inc. | Medicine Lodge, KS 67104 | Oil & Gas Operator | Jun 2025 |
| 2829 | Biedenharn Et Al | | Gas Operator | Nov 1996 |
| 2830 | Biehl Oil Service'S LLC | Bellevue, TX 76228 | Oil & Gas Operator | Nov 2017 |
| 2831 | Biffle SR Bob | Duncan, OK 73533 | Oil & Gas Operator | Nov 1998 |
| 2832 | Biffle, Jimmy Jack | Muenster, TX 76252 | Oil & Gas Operator | Feb 2017 |
| 2833 | Big "6" Drilling Company | Houston, TX 77063 | Oil & Gas Operator | Mar 2019 |
| 2834 | Big 'J' Prod Com | | Oil & Gas Operator | Aug 1992 |
| 2835 | Big 'O' | | Oil Operator | Jun 2025 |
| 2836 | Big Al Oil And Gas | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 2837 | Big Basin Petroleum LLC | Gillette, WY 82717 | Oil & Gas Operator | Oct 2008 |
| 2838 | Big Bear Resourc | | Oil Operator | Jan 1989 |
| 2839 | Big Bend Oil Co | Hominy, OK 74035 | Oil & Gas Operator | Jul 2025 |
| 2840 | Big C Production & Processing, Inc. | Crown City, OH 45623 | Oil & Gas Operator | Dec 2021 |
| 2841 | Big Chief Exploration | Palisades, CO 81526 | Oil & Gas Operator | Oct 1993 |
| 2842 | Big Country Pipe & Supply, Inc. | Saint Jo, TX 76265 | Oil Operator | May 2023 |
| 2843 | Big Creek Energy LLC | Kingfisher, OK 73750-3102 | Oil & Gas Operator | Sep 2025 |
| 2844 | Big Creek Operating Company LLC | Houston, TX 77065 | Oil & Gas Operator | Dec 2025 |
| 2845 | Big Creek Operating, Inc. | | Oil & Gas Operator | Jan 1991 |
| 2846 | Big D Energy Company | New Braunfels, TX 78132 | Oil & Gas Operator | Dec 2025 |
| 2847 | Big Dog Energy LLC | Sewickley, PA 15143-8782 | Gas Operator | Sep 2025 |
| 2848 | Big Easy Operating Company | Houston, TX 77056 | Oil & Gas Operator | Aug 2003 |
| 2849 | Big Eight DRLG Co | | Oil Operator | Dec 2023 |
| 2850 | Big Eight Energy | El Dorado, KS 67042 | Oil Operator | Apr 2001 |
| 2851 | Big Eight Energy, L.L.C. | Wichita, KS 67275 | Oil Operator | Dec 2009 |
| 2852 | Big Four Leasing & Operating Inc | Cushing, OK 74023 | Oil & Gas Operator | Aug 2025 |
| 2853 | Big Four Petroleum Company | Cushing, OK 74023 | Oil & Gas Operator | Nov 2004 |
| 2854 | Big G Exploration, Inc. | | Oil Operator | Mar 1988 |
| 2855 | Big Heart Oil Company, LLC | Smackover, AR 71762 | Oil Operator | Jan 2025 |
| 2856 | Big Horn Oil And Gas Inc. | | Gas Operator | Sep 2025 |
| 2857 | Big Horn Oil Co Inc | Great Bend, KS 67530 | Oil & Gas Operator | May 2013 |
| 2858 | Big Iron Excavation, L.L.C. | Blanket, TX 76432 | Oil Operator | Jan 2022 |
| 2859 | Big Island Operating Corp. | | Oil & Gas Operator | Aug 1988 |
| 2860 | Big J Tank Truck Service Inc | Perry, OK 73077-1238 | Oil Operator | Apr 2014 |
| 2861 | Big Jack Oil & G | | Oil Operator | Sep 1986 |
| 2862 | Big Lake Corporation | Dallas, TX 75222 | Oil & Gas Operator | Dec 2025 |
| 2863 | Big Lake J J Oil & Gas, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Dec 2025 |
| 2864 | Big Lime Energy LTD | Medford, OK 73759-0009 | Oil & Gas Operator | Mar 2015 |
| 2865 | Big M Oil Company | | Oil & Gas Operator | Jan 2025 |
| 2866 | Big Man Oil Co, Inc | Owensboro, KY 42302 | Oil & Gas Operator | Dec 2023 |
| 2867 | Big Mountain Operating LLC | Decatur, TX 76234 | Oil & Gas Operator | Dec 2025 |
| 2868 | Big Muddy Operating LLC | Casper, WY 82602 | Oil Operator | Sep 2025 |
| 2869 | Big Pine Petroleum Inc. | | Oil & Gas Operator | Dec 2024 |
| 2870 | Big Piney Oil & Gas Company | Dallas, TX 75206 | Oil & Gas Operator | Sep 1992 |
| 2871 | Big River Oil Field Services, LLC | | Oil Operator | Mar 2017 |
| 2872 | Big Rock Oil LLC | Frisco, TX 75034 | Oil Operator | Dec 2025 |
| 2873 | Big Run Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2025 |
| 2874 | Big Sand Drilling Company | Buckhannon, WV 26201-0000 | Oil & Gas Operator | Dec 2021 |
| 2875 | Big Shell Oil & Gas, Inc. | Taft, TX 78390 | Oil & Gas Operator | Dec 2025 |
| 2876 | Big Sky Energy Inc | New Concord, OH 43762 | Oil & Gas Operator | Dec 2024 |
| 2877 | Big Sky Energy, LLC | Cody, WY 82414 | Oil & Gas Operator | May 2024 |
| 2878 | Big Sky Exploration LLC | Dana Point, CA 92629-2889 | Oil Operator | Apr 2020 |
| 2879 | Big Sky Gas Co. | Tribune, KS 67879 | Gas Operator | Dec 2001 |
| 2880 | Big Sky Oil Company | Nowata, OK 74048-0187 | Oil & Gas Operator | Mar 2015 |
| 2881 | Big Sky Production Co Inc | Perry, OK 73077 | Oil & Gas Operator | May 2006 |
| 2882 | Big Sky Well Service, Inc. | | Oil & Gas Operator | Aug 2018 |
| 2883 | Big Snowy Resources LP | Billings, MT 59105 | Oil Operator | Sep 2025 |
| 2884 | Big Star Exploration | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 2025 |
| 2885 | Big Star Investments, LLC | Fort Worth, TX 76121 | Oil & Gas Operator | Sep 2025 |
| 2886 | Big Star Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | Sep 2017 |
| 2887 | Big State Industries, Inc. | Houston, TX 77010 | Oil & Gas Operator | Apr 2024 |
| 2888 | Big Three Oil Company | Windthorst, TX 76389 | Oil & Gas Operator | Jul 2006 |
| 2889 | Big Ticket, LLC | Lawrence, KS 66047 | Oil Operator | Mar 2025 |
| 2890 | Big Tio, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Dec 2025 |
| 2891 | Big Top Oil & Gas LLC | Lambertville, MI 48144 | Oil Operator | Dec 2023 |
| 2892 | Big Valley Resources | | Oil Operator | Dec 2008 |
| 2893 | Big W Oil Company | Graham, TX 76450 | Oil & Gas Operator | May 2017 |
| 2894 | Big Wells Energy Corp | Katy, TX 77494 | Oil & Gas Operator | Sep 2019 |
| 2895 | Big West Of California LLC | | Oil & Gas Operator | Dec 2018 |
| 2896 | Big-Joe Operating, Co. | | Oil & Gas Operator | May 2017 |
| 2897 | Bigfoot Energy Services LLC | Carthage, TX 75633 | Oil & Gas Operator | Aug 2024 |
| 2898 | Bigfoot Oil LLC | Denver, CO 80206 | Oil Operator | Dec 2025 |
| 2899 | Biggs Jerrold L | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 2900 | Biggs Resources, Inc. | | Oil Operator | Apr 1984 |