| 2601 | Henson Terry Dba Daycon Exploration | Tulsa, OK 74133 | Oil & Gas Operator | Dec 2025 |
| 2602 | Hep Oil Company, LTD. | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2012 |
| 2603 | Hep Oil GP, LLC | Gainesville, TX 76241 | Oil & Gas Operator | Mar 2015 |
| 2604 | Heritage Exploration LLC | Oklahoma City, OK 73120-5622 | Oil & Gas Operator | Jan 2020 |
| 2605 | Heritage Oil Company Inc | Norman, OK 73070 | Oil & Gas Operator | Jul 2008 |
| 2606 | Heritage Petroleum, Inc. | Stillwater, OK 74076 | Oil & Gas Operator | May 2026 |
| 2607 | Herrman & Ikenberry | Cushing, OK 74023-0247 | Oil & Gas Operator | Dec 2003 |
| 2608 | Herrmann Arnold | Chandler, OK 74834 | Oil & Gas Operator | Sep 2024 |
| 2609 | Herrmann J B Oil And Gas | Amarillo, TX 79159-0670 | Oil & Gas Operator | Feb 2015 |
| 2610 | Herv Oil, LLC | Oklahoma City, OK 73116 | Oil Operator | Feb 2026 |
| 2611 | Herzfeld Fabricators Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2017 |
| 2612 | Hess Corporation | Houston, TX 77010 | Oil & Gas Operator | Aug 2017 |
| 2613 | Hester Jr J C | Lawton, OK 73502-1887 | Oil & Gas Operator | Oct 1997 |
| 2614 | Heuston Oil LLC | Bartlesville, OK 74006 | Oil & Gas Operator | Apr 2020 |
| 2615 | Hewitt Energy Group Inc | Salt Lake City, UT 84111 | Oil & Gas Operator | Apr 2015 |
| 2616 | Hewitt, Douglas R | | Oil Operator | Nov 2025 |
| 2617 | Hexagon Oil And Gas Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | May 2026 |
| 2618 | HGN Operating Company, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jul 2014 |
| 2619 | HHH & G Oil Co | Owasso, OK 74055 | Oil Operator | Jun 2020 |
| 2620 | HHL Development Inc | Garber, OK 73738 | Oil & Gas Operator | Feb 2026 |
| 2621 | Hi-Kat Petroleum Company | Liberal, KS 67905-1261 | Oil & Gas Operator | May 2014 |
| 2622 | Hiawatha Exploration Company | Oklahoma City, OK 73116-7326 | Oil & Gas Operator | Mar 2009 |
| 2623 | Hibbert R E Estate Of | Houston, TX 77002-3211 | Oil & Gas Operator | Apr 2015 |
| 2624 | High Energy | Cushing, OK 74023 | Oil & Gas Operator | Jan 2026 |
| 2625 | High McDonald Operating Co | Norman, OK 73072-7607 | Oil Operator | Jan 2026 |
| 2626 | High Sierra Water Services Mid Continent LLC | Denver, CO 80209 | Oil Operator | Feb 2010 |
| 2627 | Highfill Bob W | Claremore, OK 74018-2595 | Oil Operator | Jun 2005 |
| 2628 | Highland Minerals Inc | Tulsa, OK 74145-7627 | Oil & Gas Operator | Apr 2015 |
| 2629 | Highland Oil & Gas LLC | Houston, TX 77079-7220 | Oil & Gas Operator | Feb 2015 |
| 2630 | Highline Operating, LLC | Oklahoma City, OK 73159 | Gas Operator | Jan 2026 |
| 2631 | Highmark Energy Operating, LLC | Dallas, TX 75222 | Oil & Gas Operator | May 2026 |
| 2632 | Highmount Operating LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2014 |
| 2633 | Hightower Energy LLC | Cushing, OK 74023-6370 | Oil & Gas Operator | Feb 2026 |
| 2634 | Hightower Oil & Gas | Cairo, IL 62914-0401 | Oil Operator | Nov 2014 |
| 2635 | Highway 15 SWD LLC | Shattuck, OK 73858 | Oil Operator | Oct 2021 |
| 2636 | Highway 60 SWD LLC | Shattuck, OK 73858-0848 | Oil Operator | Jul 2019 |
| 2637 | Hikcott Oil | Wilson, OK 73463-6537 | Oil Operator | Jan 2014 |
| 2638 | Hill Gilford | Stroud, OK 74079-9401 | Oil & Gas Operator | May 2013 |
| 2639 | Hill John H | Dallas, TX 75240-7077 | Oil & Gas Operator | Jul 2015 |
| 2640 | Hill Oil Company Inc | Shawnee, OK 74804 | Oil & Gas Operator | Jan 2026 |
| 2641 | Hill Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2009 |
| 2642 | Hill Resources Inc | | Oil & Gas Operator | Nov 2022 |
| 2643 | Hill Robert H & Willa F | Morris, OK 74445 | Oil & Gas Operator | Apr 2020 |
| 2644 | Hill William H | Broken Arrow, OK 74012-8952 | Oil & Gas Operator | Apr 2020 |
| 2645 | Hillenburg Oil Company | Broken Arrow, OK 74011-4021 | Oil Operator | Apr 2011 |
| 2646 | Hilliard Oil & Gas, Inc. | New Orleans, LA 70112 | Oil & Gas Operator | May 2001 |
| 2647 | Hillin-Simon Oil Company | Houston, TX 77079 | Oil & Gas Operator | Mar 2013 |
| 2648 | Hills Dozer Service | Stroud, OK 74079 | Oil & Gas Operator | Mar 2022 |
| 2649 | Hillside Resources | Bartlesville, OK 74005 | Oil & Gas Operator | Jan 2007 |
| 2650 | Hilltop Disposal LLC | Elk City, OK 73644-2400 | Oil Operator | Jun 2021 |
| 2651 | Himco Oil & Gas Inc | Enid, OK 73702 | Oil & Gas Operator | Jan 2026 |
| 2652 | Hinkle Engineering, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2016 |
| 2653 | Hinkle Oil And Gas Inc | Oklahoma City, OK 73112-4275 | Oil & Gas Operator | Feb 2026 |
| 2654 | Hinson Bobbie L | Bristow, OK 74010 | Oil & Gas Operator | Feb 2026 |
| 2655 | Hinson Jr Bobbie L | Bristow, OK 74010 | Oil & Gas Operator | Jul 2020 |
| 2656 | His Energy Corporation Inc | Newcastle, OK 73065-1461 | Oil Operator | Feb 2018 |
| 2657 | Hispanic Oil & Gas Energy, LLC | Houston, TX 77056 | Oil Operator | Jan 2026 |
| 2658 | Hitchita #1 LP | Edmond, OK 73013-6628 | Oil & Gas Operator | Sep 1997 |
| 2659 | Hixon James E | | Oil Operator | Feb 2004 |
| 2660 | HK Energy Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2023 |
| 2661 | HLH Realty Co | Drumright, OK 74030 | Oil & Gas Operator | Mar 2016 |
| 2662 | HMD Oil Co Inc | Ardmore, OK 73401-2542 | Oil & Gas Operator | Feb 2026 |
| 2663 | HMX Investments, Inc. | Katy, TX 77494 | Oil & Gas Operator | Jan 2026 |
| 2664 | Hoard John L Family Trust | Ardmore, OK 73402-1706 | Oil & Gas Operator | Jun 2022 |
| 2665 | Hobo Oil & Gas | | Oil & Gas Operator | Aug 2013 |
| 2666 | Hoco Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2026 |
| 2667 | Hodgden Operating Co., Inc. | Enid, OK 73702 | Oil & Gas Operator | Feb 2026 |
| 2668 | Hodge T F | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2007 |
| 2669 | Hoehn French | Enid, OK 73701-5600 | Oil & Gas Operator | Oct 1996 |
| 2670 | Hoffman Oil & Gas Company | | Oil & Gas Operator | Aug 1997 |
| 2671 | Hog Operating LLC | Dallas, TX 75201 | Oil & Gas Operator | May 2026 |
| 2672 | Hogback Exploration Inc | Fort Smith, AR 72916 | Oil & Gas Operator | Jan 2026 |
| 2673 | Hoge Oil & Gas Expl Inc | Edmond, OK 73013-3709 | Oil & Gas Operator | Jan 2026 |
| 2674 | Hoke Jr J T | Edmond, OK 73034 | Oil Operator | Nov 1998 |
| 2675 | Holden Energy Corporation | Ardmore, OK 73401 | Oil & Gas Operator | Mar 2015 |
| 2676 | Holke Dave Consulting Inc | Meridian, ID 83646-4812 | Oil & Gas Operator | Jan 2026 |
| 2677 | Holliday Exploration Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2005 |
| 2678 | Holloway David A | Okmulgee, OK 74447-9191 | Oil & Gas Operator | Jan 2026 |
| 2679 | Hollrah Exploration Company | Edmond, OK 73012 | Oil & Gas Operator | Feb 2026 |
| 2680 | Holman Kendall | Paden, OK 74860-7116 | Oil & Gas Operator | Jan 2026 |
| 2681 | Holman Ray | Okemah, OK 74859-0029 | Gas Operator | May 2024 |
| 2682 | Holman Robert W | Prague, OK 74864-9230 | Oil & Gas Operator | Jan 2019 |
| 2683 | Holmes Mary Ellen | Bristow, OK 74010 | Oil Operator | Mar 2015 |
| 2684 | Holt Andrew L "Mickey" | Pawhuska, OK 74056 | Oil & Gas Operator | Aug 2008 |
| 2685 | Holt James | Skiatook, OK 74070-0006 | Oil & Gas Operator | Feb 2020 |
| 2686 | Holt Jean | Claremore, OK 74017-9439 | Oil Operator | Mar 2015 |
| 2687 | Holt Oil & Gas Corp | Dallas, TX 75231 | Oil & Gas Operator | Apr 1995 |
| 2688 | Home Petroleum Corp | Victoria, TX 77902 | Oil & Gas Operator | May 2026 |
| 2689 | Home-Stake Royalty Corp., The | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2014 |
| 2690 | Homer Oil Co LLC | Holdenville, OK 74848-3232 | Oil Operator | Sep 2025 |
| 2691 | Hondo Oil & Gas Company | Roswell, NM 88202 | Oil & Gas Operator | Aug 2006 |
| 2692 | Honeymon Drilling Company LTD | Oklahoma City, OK 73147 | Oil & Gas Operator | Feb 1995 |
| 2693 | Hooker Phil Oil Operator | | Oil Operator | Aug 1996 |
| 2694 | Hooks Dwain | Tatums, OK 73487 | Oil & Gas Operator | Nov 2025 |
| 2695 | Hoover & Wilson Exp & Prod Inc | Fort Smith, AR 72913-5171 | Gas Operator | Jul 2013 |
| 2696 | Hope Oil Inc | Midland, TX 79702 | Oil & Gas Operator | Oct 2021 |
| 2697 | Hoppes Helen E | Depew, OK 74028-3428 | Oil & Gas Operator | Apr 2015 |
| 2698 | Horizon Barnsdall Energy Part LTD I Osage Only | | Oil Operator | Feb 2012 |
| 2699 | Horizon Natural Gas Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2024 |
| 2700 | Horizon Natural Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2019 |