| 1 | H & H Operating | Olney, TX 76374 | Oil & Gas Operator | Dec 2024 |
| 2 | H & H Production | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2015 |
| 3 | H & S Production, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Mar 2004 |
| 4 | H&P Operating | Megargel, TX 76370 | Oil & Gas Operator | Jan 2015 |
| 5 | H-Two-O Investments | Iowa Park, TX 76367 | Oil Operator | Sep 2019 |
| 6 | H. I. M. Producers | Graham, TX 76450 | Oil & Gas Operator | May 1999 |
| 7 | Haggard, E. A. | Graham, TX 76450 | Oil & Gas Operator | Apr 2001 |
| 8 | Haigood & Campbell | Archer City, TX 76351 | Oil & Gas Operator | Dec 2024 |
| 9 | Hale Oil & Gas Properties | Graham, TX 76450 | Oil & Gas Operator | Jul 1997 |
| 10 | Hammon Properties | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 1996 |
| 11 | Hanaco, LLC | Holliday, TX 76366 | Oil Operator | Dec 2017 |
| 12 | Hannis Operating, LLC | Olney, TX 76374 | Oil & Gas Operator | Dec 2024 |
| 13 | Hardrock Operating Company, Inc. | Fort Worth, TX 76161 | Oil & Gas Operator | Dec 2024 |
| 14 | Harmel And Shawver Oil LLC | Wichita Falls, TX 76310 | Oil Operator | Dec 2024 |
| 15 | Harvey, James W. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2008 |
| 16 | Hastings, J. W. Oil Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2010 |
| 17 | Hat Oil & Gas, Inc. | Slaton, TX 79364 | Oil & Gas Operator | Feb 2002 |
| 18 | Hatcher, Ray | Burkburnett, TX 76354 | Oil & Gas Operator | Jun 2002 |
| 19 | Hawkins, G. A. | Graham, TX 76450 | Oil & Gas Operator | Dec 2013 |
| 20 | Haynes & Shirley Production Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Dec 2024 |
| 21 | Hays & Boydston | Graham, TX 76450 | Oil & Gas Operator | Mar 1994 |
| 22 | Hays & Croker Partnership | Olney, TX 76374 | Oil & Gas Operator | Dec 2024 |
| 23 | Hays Partnership | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 24 | Hays, David H. | Olney, TX 76374 | Oil & Gas Operator | Dec 1995 |
| 25 | Hays, John H. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 26 | Helmcamp, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2002 |
| 27 | Henderson, Sam W. | Iowa Park, TX 76367 | Oil & Gas Operator | Jun 2019 |
| 28 | Herencia Operating LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Dec 2024 |
| 29 | Herring, Ray | Graham, TX 76450 | Oil & Gas Operator | Jul 2014 |
| 30 | Hexagon Oil And Gas Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Dec 2024 |
| 31 | Heydrick Petroleum Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2024 |
| 32 | Hickman & Ickert | Olney, TX 76374 | Oil & Gas Operator | Feb 2002 |
| 33 | Hilbers Oil & Gas | Archer City, TX 76351 | Oil & Gas Operator | Oct 2002 |
| 34 | Hill, Hub, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Jan 1994 |
| 35 | Hill, R.M. Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 36 | Hoco Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2024 |
| 37 | Hodgden Operating Co., Inc. | Enid, OK 73702 | Oil & Gas Operator | Oct 2024 |
| 38 | Hoggard, Kenneth | Loving, TX 76460 | Oil & Gas Operator | Dec 2024 |
| 39 | Holcomb Company, The | Freer, TX 78357 | Oil & Gas Operator | Aug 1996 |
| 40 | Holli-Tex Supply Co. | Holliday, TX 76366 | Oil & Gas Operator | May 2018 |
| 41 | Holliday CSG Corp. | Holliday, TX 76366 | Oil & Gas Operator | Dec 2024 |
| 42 | Hood, J. F. | Holliday, TX 76366 | Oil & Gas Operator | Apr 2010 |
| 43 | Hood, J. Frank, Jr. | Arlington, TX 76006 | Oil & Gas Operator | Dec 2024 |
| 44 | Hood, Joe B. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2008 |
| 45 | Horany, Ray & Ernest | Olney, TX 76374 | Oil & Gas Operator | May 2002 |
| 46 | Horn, W. J. | Graham, TX 76450 | Oil & Gas Operator | Oct 2004 |
| 47 | HRH Energy Group Incorporated | Carrollton, TX 75006 | Oil & Gas Operator | Nov 2009 |
| 48 | Hughes & Shawver | Olney, TX 76374 | Oil & Gas Operator | Aug 1996 |
| 49 | Hughes Oil Company Inc | Odessa, TX 79765 | Oil & Gas Operator | Feb 2004 |
| 50 | Hughes, Bill Drilling, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 51 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
| 52 | Hull Oil Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2021 |
| 53 | Hulse, J. T. | Archer City, TX 76351 | Oil & Gas Operator | Dec 2024 |
| 54 | Hulse, Tommy P. | Archer City, TX 76351 | Oil & Gas Operator | Feb 2009 |
| 55 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
| 56 | Hunt, Hassie Exploration Company | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 57 | Hunter Brothers | Wichita Falls, TX 76302 | Oil & Gas Operator | Jul 2007 |
| 58 | Hurricane Creek Gas Venture, L.L.C. | Catoosa, OK 74015 | Oil Operator | Dec 2024 |
| 59 | Huskins, Kenny | Iowa Park, TX 76367 | Oil Operator | Dec 2024 |
| 60 | Huston Minerals LP | Albany, TX 76430 | Oil & Gas Operator | Dec 2024 |
| 61 | Huston Oil | Woodson, TX 76491 | Oil & Gas Operator | Oct 2010 |
| 62 | HW Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2024 |