| 2801 | Hillenburg Oil Company | Broken Arrow, OK 74011-4021 | Oil Operator | Apr 2011 |
| 2802 | Hilliard Oil & Gas Inc | New Orleans, LA 70112 | Oil & Gas Operator | May 2001 |
| 2803 | Hilligoss Leonard | | Oil Operator | Aug 2022 |
| 2804 | Hillin-Simon Oil Company | Houston, TX 77079 | Oil & Gas Operator | Mar 2013 |
| 2805 | Hills Dozer Service | Stroud, OK 74079 | Oil & Gas Operator | Mar 2022 |
| 2806 | Hillshafer-Goodway Corp | | Oil & Gas Operator | Jun 1994 |
| 2807 | Hillside Resources | Bartlesville, OK 74005 | Oil & Gas Operator | Jan 2007 |
| 2808 | Hilltop Disposal LLC | Elk City, OK 73644-2400 | Oil Operator | Jun 2021 |
| 2809 | Himco Oil & Gas, Inc. | Enid, OK 73702 | Oil & Gas Operator | Jan 2025 |
| 2810 | Hines Oil & Gas LLC | Elk City, OK 73644-9373 | Gas Operator | Aug 2021 |
| 2811 | Hinkle Engineering, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2016 |
| 2812 | Hinkle Oil And Gas Inc | Oklahoma City, OK 73112-4275 | Oil & Gas Operator | Feb 2025 |
| 2813 | Hinson Bobbie L | Bristow, OK 74010 | Oil & Gas Operator | Nov 2024 |
| 2814 | Hinson Jr Bobbie L | Bristow, OK 74010 | Oil & Gas Operator | Jul 2020 |
| 2815 | His Energy Corporation Inc | Newcastle, OK 73065-1461 | Oil Operator | Feb 2018 |
| 2816 | Hitchita #1 LP | Edmond, OK 73013-6628 | Oil & Gas Operator | Sep 1997 |
| 2817 | Hixon James E | | Oil Operator | Feb 2004 |
| 2818 | HK Energy Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2023 |
| 2819 | HLH Realty Co | Drumright, OK 74030 | Oil & Gas Operator | Mar 2016 |
| 2820 | HMD Oil Co Inc | Ardmore, OK 73401-2542 | Oil & Gas Operator | Feb 2025 |
| 2821 | HMX Investments Inc | Katy, TX 77494 | Oil & Gas Operator | Jan 2025 |
| 2822 | Hoard John L Family Trust | Ardmore, OK 73402-1706 | Oil & Gas Operator | Jun 2022 |
| 2823 | Hobo Oil & Gas | Wynona, OK 74084 | Oil & Gas Operator | Aug 2013 |
| 2824 | Hoco Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 2825 | Hodgden Operating Co., Inc. | Enid, OK 73702 | Oil & Gas Operator | Feb 2025 |
| 2826 | Hodge T F | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2007 |
| 2827 | Hoehn French | Enid, OK 73701-5600 | Oil & Gas Operator | Oct 1996 |
| 2828 | Hoffman Oil & Gas Company | | Oil & Gas Operator | Aug 1997 |
| 2829 | Hog Operating LLC | Dallas, TX 75201 | Oil & Gas Operator | Apr 2025 |
| 2830 | Hogback Exploration Inc | Fort Smith, AR 72916 | Oil & Gas Operator | Feb 2025 |
| 2831 | Hoge Oil & Gas Expl Inc | Edmond, OK 73013-3709 | Oil & Gas Operator | Sep 2023 |
| 2832 | Hoke Jr J T | Edmond, OK 73034 | Oil Operator | Nov 1998 |
| 2833 | Holden Energy Corporation | Ardmore, OK 73401 | Oil & Gas Operator | Mar 2015 |
| 2834 | Holke Dave Consulting Inc | Meridian, ID 83646-4812 | Oil & Gas Operator | Jan 2025 |
| 2835 | Holland Exploration Company | | Oil & Gas Operator | Apr 2007 |
| 2836 | Holliday Exploration Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2005 |
| 2837 | Holloway David A | Okmulgee, OK 74447-9191 | Oil & Gas Operator | Jan 2025 |
| 2838 | Hollrah Exploration Company | Oklahoma City, OK 73142 | Oil & Gas Operator | Feb 2025 |
| 2839 | Holman Joe | Paden, OK 74860 | Gas Operator | May 1995 |
| 2840 | Holman Kendall | Paden, OK 74860-7116 | Oil & Gas Operator | Jan 2025 |
| 2841 | Holman Ray | Okemah, OK 74859-0029 | Gas Operator | May 2024 |
| 2842 | Holman Robert W | Prague, OK 74864-9230 | Oil & Gas Operator | Jan 2019 |
| 2843 | Holmes Mary Ellen | Bristow, OK 74010 | Oil Operator | Mar 2015 |
| 2844 | Holmes Oil Company Inc | Bristow, OK 74010-0985 | Oil Operator | Apr 2015 |
| 2845 | Holt Andrew L "Mickey" | Pawhuska, OK 74056 | Oil & Gas Operator | Aug 2008 |
| 2846 | Holt James | Skiatook, OK 74070-0006 | Oil & Gas Operator | Feb 2020 |
| 2847 | Holt Jean | Claremore, OK 74017-9439 | Oil Operator | Mar 2015 |
| 2848 | Holt Oil & Gas Corp | Dallas, TX 75231 | Oil & Gas Operator | Apr 1995 |
| 2849 | Home Petroleum Corp | Victoria, TX 77902 | Oil & Gas Operator | Apr 2025 |
| 2850 | Home-Stake Royalty Corp., The | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2014 |
| 2851 | Homer Oil Co LLC | Holdenville, OK 74848-3232 | Oil Operator | Dec 2024 |
| 2852 | Hondo Oil & Gas Company | Roswell, NM 88202 | Oil & Gas Operator | Aug 2006 |
| 2853 | Honeymon Drilling Company LTD | Oklahoma City, OK 73147 | Oil & Gas Operator | Feb 1995 |
| 2854 | Hood Oil And Gas LLC | Tulsa, OK 74146-5805 | Oil Operator | Jan 2025 |
| 2855 | Hooker Phil Oil Operator | | Oil Operator | Aug 1996 |
| 2856 | Hooks Dwain | Tatums, OK 73487 | Oil & Gas Operator | Oct 2024 |
| 2857 | Hoover & Wilson Exp & Prod Inc | Fort Smith, AR 72913-5171 | Gas Operator | Jul 2013 |
| 2858 | Hope Oil Inc | Midland, TX 79702 | Oil & Gas Operator | Oct 2021 |
| 2859 | Hoppes Helen E | Depew, OK 74028-3428 | Oil & Gas Operator | Apr 2015 |
| 2860 | Horizon & Barnsdall | Tulsa, OK 74102 | Oil Operator | Feb 2012 |
| 2861 | Horizon Natural Gas Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2024 |
| 2862 | Horizon Natural Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2019 |
| 2863 | Horizon Oil & Gas Co. | Dallas, TX 75221 | Oil & Gas Operator | Jan 2005 |
| 2864 | Horizon Resources Inc | Fort Worth, TX 76101-1978 | Oil & Gas Operator | Jul 2006 |
| 2865 | Horn Eddie L Dba B & E Investments | Bristow, OK 74010 | Oil & Gas Operator | Jan 2025 |
| 2866 | Horn Hank | Pawauska, OK 74056 | Oil Operator | Apr 2009 |
| 2867 | Horn Oil Company | Bristow, OK 74010 | Oil & Gas Operator | Jan 2025 |
| 2868 | Horn R L & Sons Drilling | | Oil Operator | Jun 1997 |
| 2869 | Horseshoe Oil Co | Cromwell, OK 74837 | Oil & Gas Operator | Dec 2021 |
| 2870 | Horton Mary | Ratliff City, OK 73481 | Oil Operator | May 2020 |
| 2871 | Horton Oil Company, Inc. | Independence, KS 67301 | Oil & Gas Operator | Jul 2000 |
| 2872 | Hosco Operating Inc | Seminole, OK 74868-2447 | Oil & Gas Operator | Aug 2017 |
| 2873 | Hotulke Construction LLC | Seminole, OK 74868 | Oil & Gas Operator | Jan 2025 |
| 2874 | Hough Oil And Gas | Hominy, OK 74035 | Oil Operator | Jan 2025 |
| 2875 | Houseco Petroleum Inc | Bristow, OK 74010-0842 | Oil & Gas Operator | Aug 2002 |
| 2876 | Houston Exploration Co, The | Houston, TX 77002 | Oil & Gas Operator | Apr 2017 |
| 2877 | Hovas Enterprises | Perkins, OK 74059 | Oil & Gas Operator | Mar 2014 |
| 2878 | Howard & Taylor | Wynnewood, OK 73098-9234 | Oil & Gas Operator | Jan 2025 |
| 2879 | Howard Energy Co Inc | Traverse City, MI 49684 | Oil & Gas Operator | Jun 2014 |
| 2880 | Howco Oil And Gas | Stroud, OK 74079-9604 | Oil & Gas Operator | Mar 2015 |
| 2881 | Howden Petroleum Corp | Wetumka, OK 74883 | Gas Operator | Nov 1997 |
| 2882 | Howell Bill J | Calvin, OK 74531-0248 | Oil & Gas Operator | Sep 2016 |
| 2883 | Howell C W | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2015 |
| 2884 | Howell Jason | Wynona, OK 74084 | Oil Operator | Jan 2025 |
| 2885 | Howell'S Well Service, Inc. | | Oil & Gas Operator | Jan 2025 |
| 2886 | Hoyt John C | Bartlesville, OK 74005-1316 | Oil Operator | Feb 2000 |
| 2887 | Hoyt Oil & Gas LLC | Cushing, OK 74023-0442 | Oil & Gas Operator | Jan 2025 |
| 2888 | HPC Incorporated | Denver, CO 80202 | Oil & Gas Operator | Nov 1998 |
| 2889 | HRB Operating Company Inc | Bridgeport, TX 76426 | Oil & Gas Operator | Apr 2025 |
| 2890 | HRC Production Co | Houston, TX 77002 | Oil & Gas Operator | Jan 2025 |
| 2891 | HRF Exploration & Production LLC | Gaylord, MI 49734-0160 | Gas Operator | Apr 2025 |
| 2892 | Hsumy Oil & Gas Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2007 |
| 2893 | Hub-Hill Inc | San Antonio, TX 78230 | Oil Operator | Nov 1998 |
| 2894 | Huber Energy Panhandle LP | Houston, TX 77079 | Oil & Gas Operator | Oct 2005 |
| 2895 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Apr 2025 |
| 2896 | Hubler John | Tulsa, OK 74133-2716 | Oil & Gas Operator | Mar 2015 |
| 2897 | Huck Farms LLC | Stratford, OK 74872 | Oil & Gas Operator | Jan 2025 |
| 2898 | Hudgens Lester E | Bartlesville, OK 74006-0215 | Oil Operator | Mar 2015 |
| 2899 | Hudson Energy LLC | Bartlesville, OK 74006 | Oil Operator | Nov 2024 |
| 2900 | Hughes Drilling Co. | Enid, OK 73702 | Oil & Gas Operator | Apr 1998 |