| 4901 | Hermes, A. J. | Lindsay, TX 76250 | Oil & Gas Operator | Mar 2018 |
| 4902 | Herms, Walter | Luling, TX 78648 | Oil & Gas Operator | Sep 2002 |
| 4903 | Herod, Bill | Ranger, TX 76470 | Oil & Gas Operator | Apr 2022 |
| 4904 | Herricks Oil Co. | San Angelo, TX 76906 | Oil & Gas Operator | Jan 2010 |
| 4905 | Herring, Casey Oil Co. | Santa Anna, TX 76878 | Oil & Gas Operator | Nov 2008 |
| 4906 | Herring, D Oil & Gas Co. | Santa Anna, TX 76878 | Oil & Gas Operator | Nov 2024 |
| 4907 | Herring, Ray | Graham, TX 76450 | Oil & Gas Operator | Jul 2014 |
| 4908 | Herrmann Energy | Amarillo, TX 79159 | Oil & Gas Operator | May 2015 |
| 4909 | Herrmann, J.B. | Amarillo, TX 79159 | Oil & Gas Operator | Aug 2019 |
| 4910 | Herrmann, S. W. Oil & Gas | Amarillo, TX 79159 | Oil & Gas Operator | Nov 2024 |
| 4911 | Herschap Bros. | Bruni, TX 78344 | Oil & Gas Operator | Nov 2024 |
| 4912 | Hershey Oil Corporation | Seminole, TX 79360 | Oil & Gas Operator | Jul 1992 |
| 4913 | Herv Oil, LLC | Oklahoma City, OK 73116 | Oil Operator | Aug 2024 |
| 4914 | Herzfeld Fabricators Inc | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2017 |
| 4915 | Hess Bros. DRLG. Co. | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2008 |
| 4916 | Hess Corporation | Houston, TX 77010 | Oil & Gas Operator | Aug 2017 |
| 4917 | Hess Production | Quitaque, TX 79255 | Oil & Gas Operator | Nov 2024 |
| 4918 | Hess Seminole Assets LLC | Seminole, TX 79360 | Oil & Gas Operator | Aug 2017 |
| 4919 | Hess, Jerry Operating Co. | Muenster, TX 76252 | Oil & Gas Operator | Nov 2024 |
| 4920 | Hewitt, Alan P. | Midland, TX 79702 | Oil & Gas Operator | Aug 1997 |
| 4921 | Hewitt, Robert J. | Victoria, TX 77901 | Oil & Gas Operator | Jun 2004 |
| 4922 | Hexagon Oil And Gas Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Nov 2024 |
| 4923 | Hexp Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Nov 2024 |
| 4924 | Heydrick Petroleum Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2024 |
| 4925 | Hez Petroleum Company | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 4926 | HG Operating LLC | Plano, TX 75026 | Oil & Gas Operator | Nov 2024 |
| 4927 | HGB Oil Company | Denver, CO 80224 | Oil Operator | Mar 2006 |
| 4928 | Hgi Corporation | Nada, TX 77460 | Oil & Gas Operator | Apr 2016 |
| 4929 | HGN Operating Co Inc | Abilene, TX 79604 | Oil & Gas Operator | Jul 2014 |
| 4930 | HGN Operating I, LLC | Abilene, TX 79604 | Oil & Gas Operator | Nov 2024 |
| 4931 | Hi - Mountain Energy Corporation | Odessa, TX 79762 | Oil & Gas Operator | Nov 2024 |
| 4932 | Hi Plains Hydrocarbons, Inc. | Sunray, TX 79086 | Oil & Gas Operator | Oct 2002 |
| 4933 | Hibbard Energy, LP | Whitehouse, TX 75791 | Oil & Gas Operator | Nov 2024 |
| 4934 | Hibernia Resources III, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2023 |
| 4935 | Hibernia Resources IV, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2024 |
| 4936 | Hibernia Resources, LLC | Houston, TX 77027 | Oil & Gas Operator | Jun 2014 |
| 4937 | Hickman & Ickert | Olney, TX 76374 | Oil & Gas Operator | Feb 2002 |
| 4938 | Hickman-Jordan-Halligan Ranches | Blackwell, TX 79506 | Oil & Gas Operator | Feb 1998 |
| 4939 | Hickory Petroleum Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jun 2013 |
| 4940 | Hickox Oil Texas Company, Inc. | Mobile, AL 36689 | Oil & Gas Operator | Feb 1996 |
| 4941 | Hicks Exploration, LLC | Dover, OK 73734 | Oil & Gas Operator | Nov 2024 |
| 4942 | Hicon Gas Producers, Inc. | New York, NY 10110 | Oil & Gas Operator | Oct 1999 |
| 4943 | Hidalgo Oil & Exploration Corp. | New Braunfels, TX 78131 | Oil & Gas Operator | Nov 2024 |
| 4944 | Higginbotham, O. V. | Cedar Park, TX 78613 | Oil & Gas Operator | Jul 1996 |
| 4945 | High Bluff Operating, LLC | Littleton, CO 80161 | Oil & Gas Operator | May 2018 |
| 4946 | High Chapparal Oil Company | Plntersville, TX 77363 | Oil & Gas Operator | Aug 2003 |
| 4947 | High Desert Resources, L.L.C. | Midland, TX 79704 | Oil Operator | Nov 2024 |
| 4948 | High Island Gas LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 4949 | High Island Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2017 |
| 4950 | High Mountain Oil & Gas | Hobbs, NM 88240 | Oil & Gas Operator | Jan 2019 |
| 4951 | High Mountain Oil & Gas, LLC | Hobbs, NM 88240 | Oil & Gas Operator | Nov 2024 |
| 4952 | High Noon Resources, LLC | Allen, TX 75013 | Oil & Gas Operator | Nov 2024 |
| 4953 | High Plains Gas Systems, Inc. | Houston, TX 77019 | Oil & Gas Operator | Nov 2024 |
| 4954 | High Plains Petroleum LLC | Bentonville, AR 72712 | Gas Operator | Jun 2024 |
| 4955 | High River Res Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Nov 2024 |
| 4956 | High Sierra Operating, LTD. | Canyon Lake, TX 78133 | Oil & Gas Operator | Mar 2008 |
| 4957 | High Sky Oil & Gas | Midland, TX 79705 | Oil & Gas Operator | Jun 2008 |
| 4958 | High Sky Partners LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2015 |
| 4959 | Higher Standard Oil Company,Inc. | Frisco, TX 75034 | Oil Operator | Nov 2024 |
| 4960 | Highground, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Nov 2024 |
| 4961 | Highland Production Company | Midland, TX 79701 | Oil & Gas Operator | Mar 1996 |
| 4962 | Highmark Energy Operating, LLC | Poynor, TX 75782 | Oil & Gas Operator | Nov 2024 |
| 4963 | Highmount Expl & Prod Texas LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2014 |
| 4964 | Highmount Operating LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2014 |
| 4965 | Highpeak Energy Holdings, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2024 |
| 4966 | Hightower Exploration | Kilgore, TX 75662 | Oil & Gas Operator | Nov 2024 |
| 4967 | Hilbers Oil & Gas | Archer City, TX 76351 | Oil & Gas Operator | Oct 2002 |
| 4968 | Hilcorp Energy Company | Houston, TX 77208 | Oil & Gas Operator | Nov 2024 |
| 4969 | Hill Operating LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Nov 2023 |
| 4970 | Hill Production Co Inc-Wisconsin | Humble, TX 77347 | Oil & Gas Operator | Jun 1993 |
| 4971 | Hill Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2009 |
| 4972 | Hill, A G | Dallas, TX 75201 | Oil & Gas Operator | May 2008 |
| 4973 | Hill, Albert, Trust | Dallas, TX 75201 | Oil & Gas Operator | May 2008 |
| 4974 | Hill, Bill | Kilgore, TX 75663 | Oil Operator | Mar 2014 |
| 4975 | Hill, Charles Drilling, Inc. | Grand Prairie, TX 75052 | Oil & Gas Operator | Nov 2024 |
| 4976 | Hill, Hub, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Jan 1994 |
| 4977 | Hill, R.M. Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 4978 | Hill, T. R. | Graham, TX 76450 | Oil & Gas Operator | Apr 1995 |
| 4979 | Hill-Lake Gas Storage, L.P. | Houston, TX 77057 | Oil & Gas Operator | Aug 2010 |
| 4980 | Hill-Lake Gas Storage, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Nov 2024 |
| 4981 | Hillcrest Petroleum, LLC | Midland, TX 79707 | Oil & Gas Operator | Jun 2019 |
| 4982 | Hilliard Oil | Bronte, TX 76933 | Oil & Gas Operator | Mar 2008 |
| 4983 | Hilliard Oil & Gas Inc | New Orleans, LA 70112 | Oil & Gas Operator | May 2001 |
| 4984 | Hilliard Petroleum Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2009 |
| 4985 | Hillin Prod. Co. | Odessa, TX 79760 | Oil & Gas Operator | Apr 2002 |
| 4986 | Hillin Simon/Prime Expl., L.C. | Midland, TX 79702 | Oil & Gas Operator | Jun 2000 |
| 4987 | Hillin, T. A. | Kerrville, TX 78028 | Oil & Gas Operator | Aug 2020 |
| 4988 | Hillin-Simon Oil Company | Houston, TX 77079 | Oil & Gas Operator | Mar 2013 |
| 4989 | Hillside Oil & Gas, LLC | Midland, TX 79708 | Oil & Gas Operator | Apr 2016 |
| 4990 | Hilltex Operating Company, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Jul 2021 |
| 4991 | Hilltop Petroleum LLC | Weatherford, TX 76086 | Oil & Gas Operator | Nov 2024 |
| 4992 | Hillwood Energy Texas, L.P. | Fort Worth, TX 76177 | Gas Operator | Jan 2010 |
| 4993 | Hillwood O & G Operating Co LP | Fort Worth, TX 76102 | Gas Operator | Nov 2024 |
| 4994 | Hilty Interests, Inc. | Kerrville, TX 78028 | Oil & Gas Operator | Jun 1989 |
| 4995 | Hindman, E. C. Jr. Partnership | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2008 |
| 4996 | Hinds Petroleum, LLC | Houston, TX 77263 | Oil Operator | Nov 2024 |
| 4997 | Hinds Petroleum, LP | Houston, TX 77263 | Oil Operator | Feb 2017 |
| 4998 | Hines, Ralph, Jr. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2002 |
| 4999 | Hinkle Engineering, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2016 |
| 5000 | Hinkle, Howard L. | Wichita Falls, TX 76301 | Oil & Gas Operator | Nov 2024 |