| 2801 | Hunton Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2026 |
| 2802 | Hurd Oil Company | | Oil & Gas Operator | Jun 2015 |
| 2803 | Hurley Charles B | Santa Ana, CA 92706 | Oil & Gas Operator | Apr 2015 |
| 2804 | Hurricane Energy Corporation | | Oil & Gas Operator | Dec 2000 |
| 2805 | Hurst Oil Investments Inc | Oklahoma City, OK 73172 | Oil & Gas Operator | Feb 2015 |
| 2806 | Husky Petroleum | Seminole, OK 74818-1181 | Oil Operator | Feb 2012 |
| 2807 | Husky Ventures Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2026 |
| 2808 | Hutton Gas Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 2809 | Hux Oil Company LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Apr 2026 |
| 2810 | Hyalite Energy Corporation | Pampa, TX 79066 | Oil & Gas Operator | Apr 2026 |
| 2811 | Hydrocarbon Management, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Dec 1996 |
| 2812 | Hydrocarbon Technology Services | | Oil & Gas Operator | Dec 2000 |
| 2813 | Hyperion Energy LP | Dallas, TX 75206 | Oil & Gas Operator | May 2014 |
| 2814 | Hyperion Oil & Gas LLC | Dallas, TX 75251 | Oil & Gas Operator | Jul 2026 |
| 2815 | I D Oil Company Inc | Sperry, OK 74073-9417 | Oil Operator | Jan 2013 |
| 2816 | I T Enterprises Inc | Tulsa, OK 74170-0775 | Oil & Gas Operator | Mar 2011 |
| 2817 | I-Mac Petroleum Service Inc | Bixby, OK 74008-3778 | Oil & Gas Operator | Apr 2020 |
| 2818 | Icon Energy Company | Oklahoma City, OK 73156-1613 | Oil & Gas Operator | Apr 2026 |
| 2819 | Icor Oil & Gas Of Okla LTD | Claremore, OK 74018-2132 | Oil & Gas Operator | Mar 2015 |
| 2820 | Iep Kansas Gas, LLC | Burlington, CO 80807 | Oil & Gas Operator | May 2026 |
| 2821 | Igleheart Warren | Edmond, OK 73034-8964 | Oil & Gas Operator | Jun 2016 |
| 2822 | Ike Energy LLC | Stillwater, OK 74074-1745 | Oil & Gas Operator | Apr 2026 |
| 2823 | Ikenberry Herman & Ikenberry | | Oil Operator | Jul 1999 |
| 2824 | Illoma Oil Company Inc | Algonquin, IL 60102-1825 | Oil & Gas Operator | Mar 2015 |
| 2825 | Impact Energy Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | May 2026 |
| 2826 | Imperial Petroleum, Inc. | Evansville, IN 47725 | Oil & Gas Operator | Jan 2005 |
| 2827 | Imperium Energy Inc | Atlanta, TX 75551 | Oil & Gas Operator | Apr 2026 |
| 2828 | Inca Oil Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2009 |
| 2829 | Inda Oil Unlimited | Bartlesville, OK 74006 | Oil Operator | Dec 2023 |
| 2830 | Indian Nation Energy Company | Wewoka, OK 74884-3456 | Oil & Gas Operator | Apr 2020 |
| 2831 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Jul 2026 |
| 2832 | Indian Territory Operating LLC | Salado, TX 76571 | Oil & Gas Operator | Jun 2025 |
| 2833 | Indian Wells Oil Co | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2000 |
| 2834 | Indianola Oil Inc | Bartlesville, OK 74005 | Oil & Gas Operator | Aug 2000 |
| 2835 | Indrex Inc | Tulsa, OK 74133 | Oil & Gas Operator | Dec 2000 |
| 2836 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 2837 | Infinity Oil & Gas Inc | Nowata, OK 74048 | Oil Operator | Jun 1993 |
| 2838 | Ingersoll Oil Inc | Hominy, OK 74035 | Oil & Gas Operator | Jun 2000 |
| 2839 | Ingersoll Rosinbaum Oil Inc | | Oil & Gas Operator | Apr 2026 |
| 2840 | Ingram Exploration Inc | Seminole, OK 74868 | Oil & Gas Operator | May 2026 |
| 2841 | Injection Well Service | Lone Grove, OK 73443-0156 | Oil Operator | Apr 2005 |
| 2842 | Inland Oil Corporation | Sapulpa, OK 74067 | Oil & Gas Operator | May 2026 |
| 2843 | Inland Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2026 |
| 2844 | Inman Oil LLC | Ruidoso, NM 88355 | Oil Operator | May 2026 |
| 2845 | Integrated Energy Service Corp | Cleveland, OK 74020 | Oil & Gas Operator | Nov 1998 |
| 2846 | Inter-States Oil & Gas Inc | Edmond, OK 73003-0023 | Oil & Gas Operator | Apr 2020 |
| 2847 | Intergrated Drill & Expl Inc | Tulsa, OK 74136-1071 | Oil & Gas Operator | Sep 1994 |
| 2848 | Intergy Production LLC | Edmond, OK 73083 | Oil & Gas Operator | May 2026 |
| 2849 | International Energy Company LLC | Tulsa, OK 74136-3922 | Oil & Gas Operator | Apr 2026 |
| 2850 | International Energy Corporation | Tulsa, OK 74136-3922 | Oil & Gas Operator | Dec 2018 |
| 2851 | International Ventures Inc | Pogasa Springs, CO 81147 | Oil Operator | Jul 1996 |
| 2852 | Internorth Inc | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2014 |
| 2853 | Interstate Explorations LLC | Houston, TX 77010 | Oil & Gas Operator | Jul 2026 |
| 2854 | Interstate Operating LLC | Tulsa, OK 74101-0535 | Oil & Gas Operator | Aug 2013 |
| 2855 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | May 2026 |
| 2856 | Investment Operating Co | Stillwater, OK 74075-8572 | Oil Operator | Feb 2026 |
| 2857 | Investors Resources Corp | Edmond, OK 73034 | Oil & Gas Operator | May 2026 |
| 2858 | Invoil, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 2026 |
| 2859 | Iochem Corporation | Oklahoma City, OK 73118-7483 | Oil & Gas Operator | May 2026 |
| 2860 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
| 2861 | Irex Corporation | Englewood, CO 80111 | Oil & Gas Operator | May 2000 |
| 2862 | Iron Hawk Energy Group Joint Venture | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2026 |
| 2863 | Iron Post Oil & Gas Co Inc | Bristow, OK 74010-4120 | Oil & Gas Operator | Mar 2026 |
| 2864 | Iron Sights Operating, Inc. | Stillwater, OK 74076 | Oil & Gas Operator | Jul 2022 |
| 2865 | Iron Star Energy LLC | Houston, TX 77037-1142 | Oil & Gas Operator | Apr 2026 |
| 2866 | Ironhead Oil & Gas LLC | Healdton, OK 73438 | Gas Operator | May 2026 |
| 2867 | Isaacs Fairy J | Konawa, OK 74849-0134 | Oil Operator | Sep 2020 |
| 2868 | Itr Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 2869 | J & E Energy Company | Oklahoma City, OK 73120-1108 | Oil & Gas Operator | Mar 2015 |
| 2870 | J & F Oil & Gas Company | Yale, OK 74085-0311 | Oil & Gas Operator | Feb 2004 |
| 2871 | J & F Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Jul 2026 |
| 2872 | J & J Energy Service LLC | Bokoshe, OK 74930 | Gas Operator | Apr 2026 |
| 2873 | J & J Jackson Oil & Gas Inc | Centerview, MO 64019 | Oil Operator | May 2026 |
| 2874 | J & J Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Mar 2015 |
| 2875 | J & J Oil Company LLC | Lubbock, TX 79424 | Oil Operator | Jul 2026 |
| 2876 | J & J Production Company LLC | Okemah, OK 74859 | Oil & Gas Operator | May 2026 |
| 2877 | J & J Tank Truck Services LLC | Peyton, CO 80831 | Oil Operator | Oct 2024 |
| 2878 | J & K Operating Co LLC | Delaware, OK 74027 | Oil & Gas Operator | Mar 2026 |
| 2879 | J & K Production LLC | Konawa, OK 74849 | Oil Operator | May 2026 |
| 2880 | J & L Oil Company | El Dorado, AR 71730 | Oil Operator | Jan 2025 |
| 2881 | J & M Oil Co | Overland PK, KS 66209 | Oil & Gas Operator | Mar 2026 |
| 2882 | J & M Operating Company | Pond Creek, OK 73766 | Oil Operator | Oct 2015 |
| 2883 | J & M Well Service & Trucking Inc | Bristow, OK 74010-2399 | Oil & Gas Operator | Mar 2026 |
| 2884 | J & P Production | Holdenville, OK 74848-9485 | Oil Operator | Mar 2015 |
| 2885 | J & R Enterprises | Wetumka, OK 74883-0068 | Oil & Gas Operator | Sep 2000 |
| 2886 | J & R Transports Inc | Woodward, OK 73802 | Oil & Gas Operator | Dec 2006 |
| 2887 | J & S Gas Company | Ranger, TX 76470 | Oil & Gas Operator | Oct 2003 |
| 2888 | J & S Of Enid Inc | Enid, OK 73701 | Oil & Gas Operator | Jul 2019 |
| 2889 | J & S Oil & Gas Inc | Asher, OK 74826 | Oil & Gas Operator | Apr 2026 |
| 2890 | J & S Oil Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2022 |
| 2891 | J & S Operating | Shiner, TX 77984 | Oil & Gas Operator | Dec 2002 |
| 2892 | J & T Operating Inc | Norman, OK 73070-1736 | Oil & Gas Operator | Feb 2012 |
| 2893 | J & T Resources Inc | Oologah, OK 74053-0249 | Oil Operator | Aug 2013 |
| 2894 | J & Z Investments LLC | Ada, OK 74820-0065 | Oil & Gas Operator | Apr 2026 |
| 2895 | J A Marrs Oil Company Inc | Drumright, OK 74030 | Oil & Gas Operator | Aug 2024 |
| 2896 | J B Drilling Company Inc | Muldrow, OK 74948-6601 | Oil & Gas Operator | Apr 2026 |
| 2897 | J B Energy, Inc. | Denton, TX 76206 | Oil & Gas Operator | Aug 2018 |
| 2898 | J B Hulet | | Oil & Gas Operator | Aug 2013 |
| 2899 | J B Tank Trucks Inc | Blackwell, OK 74631-0464 | Oil Operator | Apr 2014 |
| 2900 | J Black Productions LLC | Seminole, OK 74868 | Oil Operator | Apr 2026 |