| 13001 | Hill Gilford | Stroud, OK 74079-9401 | Oil & Gas Operator | May 2013 |
| 13002 | Hill John H | Dallas, TX 75240-7077 | Oil & Gas Operator | Jul 2015 |
| 13003 | Hill Oil And Gas Co., Inc. | Overland Park, KS 66213 | Oil Operator | Mar 2020 |
| 13004 | Hill Oil Company Inc | Shawnee, OK 74804 | Oil & Gas Operator | Apr 2026 |
| 13005 | Hill Operating LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Nov 2023 |
| 13006 | Hill Production | | Oil & Gas Operator | Nov 1981 |
| 13007 | Hill Production Co Inc-Wisconsin | Humble, TX 77347 | Oil & Gas Operator | Jun 1993 |
| 13008 | Hill Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2009 |
| 13009 | Hill Resources Inc | | Oil & Gas Operator | Nov 2022 |
| 13010 | Hill Robert H & Willa F | Morris, OK 74445 | Oil & Gas Operator | Apr 2020 |
| 13011 | Hill William F | Millersburg, OH 44654 | Oil & Gas Operator | Dec 1993 |
| 13012 | Hill William H | Broken Arrow, OK 74012-8952 | Oil & Gas Operator | Apr 2020 |
| 13013 | Hill, A G | Dallas, TX 75201 | Oil & Gas Operator | May 2008 |
| 13014 | Hill, Albert, Trust | Dallas, TX 75201 | Oil & Gas Operator | May 2008 |
| 13015 | Hill, Bill | Kilgore, TX 75663 | Oil Operator | Mar 2014 |
| 13016 | Hill, Charles Drilling, Inc. | Grand Prairie, TX 75052 | Oil & Gas Operator | Aug 2026 |
| 13017 | Hill, Gillman A | Englewood, CO 80112 | Oil & Gas Operator | Jun 1993 |
| 13018 | Hill, Hub, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Jan 1994 |
| 13019 | Hill, R.M. Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2026 |
| 13020 | Hill, T. R. | Graham, TX 76450 | Oil & Gas Operator | Apr 1995 |
| 13021 | Hill-Lake Gas Storage, L.P. | Houston, TX 77057 | Oil & Gas Operator | Aug 2010 |
| 13022 | Hill-Lake Gas Storage, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Aug 2026 |
| 13023 | Hillary Oil Comp | | Oil & Gas Operator | Apr 1991 |
| 13024 | Hillcrest Petroleum, LLC | Midland, TX 79707 | Oil & Gas Operator | Jun 2019 |
| 13025 | Hillenburg Oil C | | Oil Operator | Apr 1994 |
| 13026 | Hillenburg Oil Co., A General Partnership | Broken Arrow, OK 74011 | Oil Operator | Apr 2026 |
| 13027 | Hillenburg Oil Company | Broken Arrow, OK 74011-4021 | Oil Operator | Apr 2011 |
| 13028 | Hilliard Oil | Bronte, TX 76933 | Oil & Gas Operator | Mar 2008 |
| 13029 | Hilliard Oil & Gas, Inc. | New Orleans, LA 70112 | Oil & Gas Operator | May 2001 |
| 13030 | Hilliard Petroleum Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2009 |
| 13031 | Hilliker Oil Com | | Oil Operator | Jul 1984 |
| 13032 | Hilliker Production | Indian Wells, CA 92210 | Oil & Gas Operator | Jul 2007 |
| 13033 | Hillin Prod. Co. | Odessa, TX 79760 | Oil & Gas Operator | Apr 2002 |
| 13034 | Hillin Simon/Prime Expl., L.C. | Midland, TX 79702 | Oil & Gas Operator | Jun 2000 |
| 13035 | Hillin, T. A. | Kerrville, TX 78028 | Oil & Gas Operator | Aug 2020 |
| 13036 | Hillin-Simon Oil Company | Houston, TX 77079 | Oil & Gas Operator | Mar 2013 |
| 13037 | Hills Dozer Service | Stroud, OK 74079 | Oil & Gas Operator | Mar 2022 |
| 13038 | Hillside Oil & Gas, LLC | Midland, TX 79708 | Oil & Gas Operator | Apr 2016 |
| 13039 | Hillside Oil Inc | Aurora, ON L4G | Oil Operator | Dec 2021 |
| 13040 | Hillside Oil Partners | | Oil & Gas Operator | Dec 1999 |
| 13041 | Hillside Resources | Bartlesville, OK 74005 | Oil & Gas Operator | Jan 2007 |
| 13042 | Hilltex Operating Company, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Aug 2026 |
| 13043 | Hilltop Development Corp | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 1984 |
| 13044 | Hilltop Disposal LLC | Elk City, OK 73644-2400 | Oil Operator | Jun 2021 |
| 13045 | Hilltop Exploration, Inc. | Sedan, KS 67361 | Oil Operator | Jan 2000 |
| 13046 | Hilltop Petroleum LLC | Weatherford, TX 76086 | Oil & Gas Operator | Aug 2026 |
| 13047 | Hilltopper Energy, LLC | Hopkinsville, KY 42240 | Oil & Gas Operator | Dec 2023 |
| 13048 | Hillwood O & G Operating Co LP | Fort Worth, TX 76102 | Gas Operator | Aug 2026 |
| 13049 | Hilty Interests, Inc. | Kerrville, TX 78028 | Oil & Gas Operator | Jun 1989 |
| 13050 | Himco Oil & Gas Inc | Enid, OK 73702 | Oil & Gas Operator | Apr 2026 |
| 13051 | Hindman, E. C. Jr. Partnership | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2008 |
| 13052 | Hinds Petroleum, LLC | Houston, TX 77263 | Oil Operator | Aug 2026 |
| 13053 | Hinds Petroleum, LP | Houston, TX 77263 | Oil Operator | Feb 2017 |
| 13054 | Hines, Ralph, Jr. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2002 |
| 13055 | Hinkle Engineering, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2016 |
| 13056 | Hinkle Oil And Gas Inc | Oklahoma City, OK 73112-4275 | Oil & Gas Operator | May 2026 |
| 13057 | Hinkle Oil Compa | | Oil & Gas Operator | Nov 1994 |
| 13058 | Hinkle Oil Company | Wichita, KS 67202 | Oil & Gas Operator | Jan 1999 |
| 13059 | Hinkle, Howard L. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2026 |
| 13060 | Hinks Petroleum Co., Inc. | Wichita, KS 67201 | Oil Operator | May 1999 |
| 13061 | Hinson Bobbie L | Bristow, OK 74010 | Oil & Gas Operator | Feb 2026 |
| 13062 | Hinson Jr Bobbie L | Bristow, OK 74010 | Oil & Gas Operator | Jul 2020 |
| 13063 | Hinto Energy, LLC | Edwards, CO 81632 | Oil Operator | Mar 2017 |
| 13064 | Hinton Production Company | MT Pleasant, TX 75455 | Oil & Gas Operator | Aug 1995 |
| 13065 | Hinton Well Servicing, Inc. | | Oil Operator | Feb 2008 |
| 13066 | Hinton, W. B. | MT Pleasant, TX 75455 | Oil & Gas Operator | Jul 1993 |
| 13067 | Hipp Oil And Gas Inc. | Big Spring, TX 79720 | Oil & Gas Operator | Aug 2026 |
| 13068 | Hirt Farms Incor | | Oil & Gas Operator | Apr 1994 |
| 13069 | His Energy Corporation Inc | Newcastle, OK 73065-1461 | Oil Operator | Feb 2018 |
| 13070 | Hispanic Oil & Gas Energy, LLC | Houston, TX 77056 | Oil Operator | Apr 2026 |
| 13071 | Hitchcock, VIcki L. & Jacob J. | Randolph, NY 14772 | Gas Operator | Dec 2025 |
| 13072 | Hitchita #1 LP | Edmond, OK 73013-6628 | Oil & Gas Operator | Sep 1997 |
| 13073 | Hitex Resources, LP | Houston, TX 77265 | Oil & Gas Operator | Aug 2026 |
| 13074 | Hiwa Petroleum Corp. | | Oil & Gas Operator | Jun 2026 |
| 13075 | Hixon James E | | Oil Operator | Feb 2004 |
| 13076 | Hizey Service & | | Oil Operator | Apr 1994 |
| 13077 | HJ, Inc. | Garden City, KS 67846 | Oil & Gas Operator | Apr 2026 |
| 13078 | HK Eagle LLC | Lakewood, CO 80228 | Oil Operator | Apr 2026 |
| 13079 | HK Energy Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2023 |
| 13080 | HKW Oil Company, Inc. | Bunker Hill, KS 67626 | Oil Operator | Dec 2009 |
| 13081 | HLH Drilling Inc | Andover, OH 44003 | Oil & Gas Operator | Dec 1985 |
| 13082 | HLH Realty Co | Drumright, OK 74030 | Oil & Gas Operator | Mar 2016 |
| 13083 | HMD Oil Co Inc | Ardmore, OK 73401-2542 | Oil & Gas Operator | May 2026 |
| 13084 | HMH Operators, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 13085 | HMN Partnership | Argonia, KS 67004 | Oil Operator | Nov 1993 |
| 13086 | HMT Genesis Petroleum Corp. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 2008 |
| 13087 | HMX Investments, Inc. | Katy, TX 77494 | Oil & Gas Operator | Apr 2026 |
| 13088 | HNG Oil Company | | Oil & Gas Operator | Jun 1987 |
| 13089 | HNG Storage Company | Houston, TX 77042 | Oil & Gas Operator | Mar 2002 |
| 13090 | Hoag Memorial Hospital Presbyterian | | Gas Operator | Jun 2026 |
| 13091 | Hoard John L Family Trust | Ardmore, OK 73402-1706 | Oil & Gas Operator | Jun 2022 |
| 13092 | Hobbs Energy Corporation | San Angelo, TX 76904 | Oil & Gas Operator | Mar 2008 |
| 13093 | Hobbs Oil Co. | | Oil Operator | Dec 1999 |
| 13094 | Hobbs Production LLC | | Oil Operator | Mar 2023 |
| 13095 | Hobbs, Columbus Agent | | Oil & Gas Operator | Dec 2018 |
| 13096 | Hobo Oil & Gas | | Oil & Gas Operator | Aug 2013 |
| 13097 | Hobson Petroleum Corp | | Oil & Gas Operator | Sep 1991 |
| 13098 | Hoc Ca LLC | | Oil & Gas Operator | May 2026 |
| 13099 | Hoc Operating Co., Inc. | Houston, TX 77056 | Oil & Gas Operator | Nov 1999 |
| 13100 | Hochendel Consultants | | Oil & Gas Operator | Jul 1995 |