| 12901 | Hill Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2009 |
| 12902 | Hill Resources Inc | | Oil & Gas Operator | Nov 2022 |
| 12903 | Hill Robert H & Willa F | Morris, OK 74445 | Oil & Gas Operator | Apr 2020 |
| 12904 | Hill William F | Millersburg, OH 44654 | Oil & Gas Operator | Dec 1993 |
| 12905 | Hill William H | Broken Arrow, OK 74012-8952 | Oil & Gas Operator | Apr 2020 |
| 12906 | Hill, A G | Dallas, TX 75201 | Oil & Gas Operator | May 2008 |
| 12907 | Hill, Albert, Trust | Dallas, TX 75201 | Oil & Gas Operator | May 2008 |
| 12908 | Hill, Bill | Kilgore, TX 75663 | Oil Operator | Mar 2014 |
| 12909 | Hill, Charles Drilling, Inc. | Grand Prairie, TX 75052 | Oil & Gas Operator | May 2024 |
| 12910 | Hill, Gillman A | Englewood, CO 80112 | Oil & Gas Operator | Jun 1993 |
| 12911 | Hill, Hub, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Jan 1994 |
| 12912 | Hill, R.M. Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2024 |
| 12913 | Hill, T. R. | Graham, TX 76450 | Oil & Gas Operator | Apr 1995 |
| 12914 | Hill-Lake Gas Storage, L.P. | Houston, TX 77057 | Oil & Gas Operator | Aug 2010 |
| 12915 | Hill-Lake Gas Storage, LLC | Tulsa, OK 74172 | Oil & Gas Operator | May 2024 |
| 12916 | Hillary Oil Comp | | Oil & Gas Operator | Apr 1991 |
| 12917 | Hillcrest Petroleum, LLC | Midland, TX 79707 | Oil & Gas Operator | Jun 2019 |
| 12918 | Hillenburg Oil C | | Oil Operator | Apr 1994 |
| 12919 | Hillenburg Oil Co., A General Partnership | Broken Arrow, OK 74011 | Oil Operator | Jan 2024 |
| 12920 | Hillenburg Oil Company | Broken Arrow, OK 74011-4021 | Oil Operator | Apr 2011 |
| 12921 | Hilliard Oil | Bronte, TX 76933 | Oil & Gas Operator | Mar 2008 |
| 12922 | Hilliard Oil & Gas Inc | New Orleans, LA 70112 | Oil & Gas Operator | May 2001 |
| 12923 | Hilliard Petroleum Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2009 |
| 12924 | Hilligoss Leonard | | Oil Operator | Aug 2022 |
| 12925 | Hilliker Oil Com | | Oil Operator | Jul 1984 |
| 12926 | Hilliker Production | Indian Wells, CA 92210 | Oil & Gas Operator | Jul 2007 |
| 12927 | Hillin Prod. Co. | Odessa, TX 79760 | Oil & Gas Operator | Apr 2002 |
| 12928 | Hillin Simon/Prime Expl., L.C. | Midland, TX 79702 | Oil & Gas Operator | Jun 2000 |
| 12929 | Hillin, T. A. | Kerrville, TX 78028 | Oil & Gas Operator | Aug 2020 |
| 12930 | Hillin-Simon Oil Company | Houston, TX 77079 | Oil & Gas Operator | Mar 2013 |
| 12931 | Hills Dozer Service | Stroud, OK 74079 | Oil & Gas Operator | Mar 2022 |
| 12932 | Hillside Oil & Gas, Inc. | Midland, TX 79708 | Oil & Gas Operator | Nov 1999 |
| 12933 | Hillside Oil & Gas, LLC | Midland, TX 79708 | Oil & Gas Operator | Apr 2016 |
| 12934 | Hillside Oil Inc | Aurora, ON L4G | Oil Operator | Dec 2021 |
| 12935 | Hillside Oil Partners | | Oil & Gas Operator | Dec 1999 |
| 12936 | Hillside Resources | Bartlesville, OK 74005 | Oil & Gas Operator | Jan 2007 |
| 12937 | Hilltex Operating Company, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2021 |
| 12938 | Hilltop Development Corp | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 1984 |
| 12939 | Hilltop Disposal LLC | Elk City, OK 73644-2400 | Oil Operator | Jun 2021 |
| 12940 | Hilltop Exploration, Inc. | Sedan, KS 67361 | Oil Operator | Jan 2000 |
| 12941 | Hilltop Petroleum LLC | Weatherford, TX 76086 | Oil & Gas Operator | May 2024 |
| 12942 | Hilltopper Energy, LLC | Hopkinsville, KY 42240 | Oil & Gas Operator | Dec 2022 |
| 12943 | Hillwood Energy Texas, L.P. | Fort Worth, TX 76177 | Gas Operator | Jan 2010 |
| 12944 | Hillwood O & G Operating Co LP | Fort Worth, TX 76102 | Gas Operator | May 2024 |
| 12945 | Hilty Interests, Inc. | Kerrville, TX 78028 | Oil & Gas Operator | Jun 1989 |
| 12946 | Himco Oil & Gas, Inc. | Enid, OK 73702 | Oil & Gas Operator | Feb 2024 |
| 12947 | Hindman, E. C. Jr. Partnership | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2008 |
| 12948 | Hinds Petroleum, LLC | Houston, TX 77263 | Oil Operator | May 2024 |
| 12949 | Hinds Petroleum, LP | Houston, TX 77263 | Oil Operator | Feb 2017 |
| 12950 | Hines, Ralph, Jr. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2002 |
| 12951 | Hinkle Engineering, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2016 |
| 12952 | Hinkle Oil And Gas Inc | Oklahoma City, OK 73112-4275 | Oil & Gas Operator | Mar 2024 |
| 12953 | Hinkle Oil Compa | | Oil & Gas Operator | Nov 1994 |
| 12954 | Hinkle Oil Company | Wichita, KS 67202 | Oil & Gas Operator | Jan 1999 |
| 12955 | Hinkle, Howard L. | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2024 |
| 12956 | Hinks Petroleum Co., Inc. | Wichita, KS 67201 | Oil Operator | May 1999 |
| 12957 | Hinson Bobbie L | Bristow, OK 74010-0899 | Oil & Gas Operator | Dec 2023 |
| 12958 | Hinson Jr Bobbie L | Bristow, OK 74010-8420 | Oil & Gas Operator | Jul 2020 |
| 12959 | Hinto Energy, LLC | Edwards, CO 81632 | Oil Operator | Mar 2017 |
| 12960 | Hinton Production Company | MT Pleasant, TX 75455 | Oil & Gas Operator | Aug 1995 |
| 12961 | Hinton Well Servicing, Inc. | | Oil Operator | Feb 2008 |
| 12962 | Hinton, W. B. | MT Pleasant, TX 75455 | Oil & Gas Operator | Jul 1993 |
| 12963 | Hipp Oil And Gas Inc. | Big Spring, TX 79720 | Oil & Gas Operator | May 2024 |
| 12964 | Hirt Farms Incor | | Oil & Gas Operator | Apr 1994 |
| 12965 | His Energy Corporation Inc | Newcastle, OK 73065-1461 | Oil Operator | Feb 2018 |
| 12966 | Hitchcock, VIcki L. & Jacob J. | Randolph, NY 14772 | Gas Operator | Dec 2022 |
| 12967 | Hitchita #1 LP | Edmond, OK 73013-6628 | Oil & Gas Operator | Sep 1997 |
| 12968 | Hiwa Petroleum Corp. | | Oil & Gas Operator | Mar 2024 |
| 12969 | Hixon James E | | Oil Operator | Feb 2004 |
| 12970 | Hizey Service & | | Oil Operator | Apr 1994 |
| 12971 | HJ, Inc. | Garden City, KS 67846 | Oil & Gas Operator | Jan 2024 |
| 12972 | HK Energy Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2023 |
| 12973 | HKW Oil Company, Inc. | Bunker Hill, KS 67626 | Oil Operator | Dec 2009 |
| 12974 | HLH Drilling Inc | Andover, OH 44003-960-960 | Oil & Gas Operator | Dec 1985 |
| 12975 | HLH Realty Inc | Drumright, OK 74030-0232 | Oil & Gas Operator | Mar 2016 |
| 12976 | HMD Oil Co Inc | | Oil & Gas Operator | Feb 2024 |
| 12977 | HMH Operators, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 12978 | HMN Partnership | Argonia, KS 67004 | Oil Operator | Nov 1993 |
| 12979 | HMT Genesis Petroleum Corp. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 2008 |
| 12980 | HMX Investments Inc | Katy, TX 77494 | Oil & Gas Operator | Feb 2024 |
| 12981 | HNG Oil Company | | Oil & Gas Operator | Jun 1987 |
| 12982 | HNG Storage Company | Houston, TX 77042 | Oil & Gas Operator | Mar 2002 |
| 12983 | Hoag Memorial Hospital Presbyterian | | Gas Operator | Mar 2024 |
| 12984 | Hoard John L Family Trust | Ardmore, OK 73402-1706 | Oil & Gas Operator | Jun 2022 |
| 12985 | Hobbs Energy Corporation | San Angelo, TX 76904 | Oil & Gas Operator | Mar 2008 |
| 12986 | Hobbs Oil Co. | | Oil Operator | Dec 1999 |
| 12987 | Hobbs Production LLC | | Oil Operator | Mar 2023 |
| 12988 | Hobbs, Columbus Agent | | Oil & Gas Operator | Dec 2018 |
| 12989 | Hobo Oil & Gas | Wynona, OK 74084 | Oil & Gas Operator | Aug 2013 |
| 12990 | Hobson Petroleum Corp | | Oil & Gas Operator | Sep 1991 |
| 12991 | Hoc Ca LLC | | Oil & Gas Operator | Feb 2024 |
| 12992 | Hoc Operating Co., Inc. | Houston, TX 77056 | Oil & Gas Operator | Nov 1999 |
| 12993 | Hochendel Consultants | | Oil & Gas Operator | Jul 1995 |
| 12994 | Hocking Hills Energy And Well Service LLC | Logan, OH 43138 | Oil & Gas Operator | Dec 2022 |
| 12995 | Hockran, Thomas A. | Bemus Point, NY 14712 | Gas Operator | Dec 2022 |
| 12996 | Hoco Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2024 |
| 12997 | Hodgden Operating Co., Inc. | Enid, OK 73702 | Oil & Gas Operator | Mar 2024 |
| 12998 | Hodgden, Jack D. | Enid, OK 73702 | Oil & Gas Operator | Apr 2000 |
| 12999 | Hodge T F | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2007 |
| 13000 | Hodge, T.F. & Morrow Oil & Gas Co. | | Oil & Gas Operator | Sep 1993 |