| 6001 | Kga Oil Company, Inc. | High Island, TX 77623 | Oil & Gas Operator | Aug 2004 |
| 6002 | Kiamichi Oil & Gas | Whitehouse, TX 75791 | Oil Operator | Oct 1997 |
| 6003 | Kiawah Resources, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2017 |
| 6004 | Kibbe, Anna S. | Falfurrias, TX 78355 | Oil & Gas Operator | Sep 1998 |
| 6005 | Kidd Johnson Oil & Gas | San Angelo, TX 76904 | Oil & Gas Operator | Feb 2013 |
| 6006 | Kidd Johnson Oil & Gas, LLC | San Angelo, TX 76904 | Oil & Gas Operator | Dec 2025 |
| 6007 | Kidd Oil & Gas, LC | Dallas, TX 75219 | Oil & Gas Operator | Apr 1999 |
| 6008 | Kidd Production Co. | Luling, TX 78648 | Oil & Gas Operator | Dec 2025 |
| 6009 | Kids Future, L.L.C. | Bivins, TX 75555 | Oil Operator | Dec 2025 |
| 6010 | Kile Production | Cypress, TX 77410 | Oil & Gas Operator | Aug 2014 |
| 6011 | Killam Oil Co., LTD. | Laredo, TX 78042 | Oil & Gas Operator | Dec 2025 |
| 6012 | Killam Oil Company | Laredo, TX 78042 | Oil & Gas Operator | Mar 1994 |
| 6013 | Killer Rabbit Fields LLC | Monahans, TX 79756 | Oil & Gas Operator | Dec 2025 |
| 6014 | Killingsworth Oil Co. | Longview, TX 75606 | Oil & Gas Operator | Dec 2025 |
| 6015 | Killingsworth, Lee Operator | Longview, TX 75601 | Oil & Gas Operator | Jan 1999 |
| 6016 | Killion Well Service Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2014 |
| 6017 | Kilmarnock Oil Company, Inc. | Corsicana, TX 75110 | Oil & Gas Operator | Dec 2025 |
| 6018 | Kilpatrick Production Company | Tye, TX 79563 | Oil & Gas Operator | Dec 2025 |
| 6019 | Kimball Production Co. | Houston, TX 77042 | Oil & Gas Operator | Jul 2002 |
| 6020 | Kimbell Oil Company Of Texas | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2025 |
| 6021 | Kimbell Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2025 |
| 6022 | Kimberlin & Huitt | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 1998 |
| 6023 | Kimberlin & Miller | Dallas, TX 75230 | Oil & Gas Operator | Dec 2025 |
| 6024 | Kimberlin Energy Group | Dallas, TX 75235 | Oil & Gas Operator | Dec 2025 |
| 6025 | Kimble Oil Company, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2006 |
| 6026 | Kimbrel Oil Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Dec 2025 |
| 6027 | Kimbrough Engineering Co, LLC | New Braunfels, TX 78132 | Oil & Gas Operator | Dec 2014 |
| 6028 | Kimbrough Oil Company | Iraan, TX 79744 | Oil Operator | Dec 2025 |
| 6029 | Kimbrough, D. E. | Iraan, TX 79744 | Oil & Gas Operator | Dec 2025 |
| 6030 | Kimlar Oil Company | Kermit, TX 79745 | Oil & Gas Operator | Dec 2025 |
| 6031 | Kimleco Petroleum, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Dec 2025 |
| 6032 | Kimmeridge Texas Gas, LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 6033 | Kimsey, Roy E., Jr. | Midland, TX 79701 | Oil & Gas Operator | May 2018 |
| 6034 | Kincaid Etal, Inc. | Holliday, TX 76366 | Oil Operator | Dec 2025 |
| 6035 | Kincaid, Joey | Holliday, TX 76366 | Oil & Gas Operator | Mar 2005 |
| 6036 | Kincaid/Hadden | Uvalde, TX 78802 | Oil & Gas Operator | Feb 1997 |
| 6037 | Kindee Oil & Gas Texas, LLC | Houston, TX 77084 | Oil & Gas Operator | Apr 2016 |
| 6038 | Kinder & Petty | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 6039 | Kinder Morgan Co2 Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Nov 2025 |
| 6040 | Kinder Morgan Production Co LLC | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 6041 | Kinder Morgan Production Co LP | Midland, TX 79701 | Oil & Gas Operator | Jul 2007 |
| 6042 | Kinder Morgan Sacroc LP | Snyder, TX 79549 | Oil & Gas Operator | Dec 2003 |
| 6043 | Kinder Morgan Tejas Pipeline LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 6044 | Kindred Petroleum Company | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 6045 | King & West | Wichita Falls, TX 76307 | Oil & Gas Operator | May 1994 |
| 6046 | King Energy Resources | Kerrville, TX 78029 | Oil & Gas Operator | Dec 2025 |
| 6047 | King Oil & Gas Co. | Cisco, TX 76437 | Oil & Gas Operator | Dec 2025 |
| 6048 | King Oil & Resources Co | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 6049 | King Operating Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Dec 2025 |
| 6050 | King Ranch Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 1999 |
| 6051 | King Ranch Oil & Gas, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 1997 |
| 6052 | King-Goen Oil, LLC | Abilene, TX 79602 | Oil Operator | Dec 2025 |
| 6053 | Kingdom Resources Corporation | Austin, TX 78701 | Oil & Gas Operator | Sep 1993 |
| 6054 | Kingery Drilling Co., Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Nov 2025 |
| 6055 | Kingery, Johnny | Clyde, TX 79510 | Oil & Gas Operator | Oct 1997 |
| 6056 | Kingfish Gathering LLC | Lago VIsta, TX 78645 | Oil & Gas Operator | Dec 2025 |
| 6057 | Kingman Operating Company, Inc. | Austin, TX 78729 | Oil Operator | Jun 2013 |
| 6058 | Kings CRK Land Oil & Cattle, LLC | Breckenridge, TX 76424 | Oil Operator | Dec 2025 |
| 6059 | Kingwood Exploration LLC | Shreveport, LA 71105 | Oil & Gas Operator | Dec 2025 |
| 6060 | Kingwood Oil Co; Inc | Luling, TX 78648 | Oil & Gas Operator | Nov 2015 |
| 6061 | Kingwood Resources, Inc. | Kingwood, TX 77339 | Oil & Gas Operator | May 2022 |
| 6062 | Kinlaw Oil Corporation | Dallas, TX 75380 | Oil & Gas Operator | Dec 2025 |
| 6063 | Kinney Incorporated | Andrews, TX 79714 | Oil & Gas Operator | Dec 2025 |
| 6064 | Kintex Petroleum Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 6065 | Kirkpatrick Oil & Gas Co. | Pampa, TX 79066 | Oil & Gas Operator | Apr 1996 |
| 6066 | Kirkpatrick Oil & Gas L.L.C. | Midland, TX 79701 | Oil & Gas Operator | Dec 2010 |
| 6067 | Kirkpatrick Oil Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Dec 2025 |
| 6068 | Kirkpatrick, John Oil LLC | Victoria, TX 77905 | Oil & Gas Operator | Dec 2025 |
| 6069 | Kismet Properties, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Dec 2025 |
| 6070 | Kiva Resources Inc. | Houston, TX 77265 | Oil & Gas Operator | Mar 2008 |
| 6071 | KJ Energy, LLC | MT Enterprise, TX 75681 | Oil & Gas Operator | Jul 2024 |
| 6072 | Klabzuba Brothers LLC | Prague, OK 74864-0567 | Oil & Gas Operator | Jul 2007 |
| 6073 | Klabzuba Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2013 |
| 6074 | Klabzuba Royalty Company | Prague, OK 74864-0567 | Oil & Gas Operator | Dec 2019 |
| 6075 | Klaeger Operating Company II,LLC | Marble Falls, TX 78654 | Oil Operator | Dec 2025 |
| 6076 | Klaeger Operating Company, LLC | Marble Falls, TX 78654 | Oil Operator | Dec 2025 |
| 6077 | Klaeger, J. H. | Hondo, TX 78861 | Oil & Gas Operator | Dec 2009 |
| 6078 | Klassen Energy, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Dec 2025 |
| 6079 | Klause & Klaus Oil Co. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2003 |
| 6080 | Klein, J. L. | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2013 |
| 6081 | KLH Oil & Gas, Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Dec 2025 |
| 6082 | Kling, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Dec 2000 |
| 6083 | Klingberg, Roger | Cross Plains, TX 76443 | Oil & Gas Operator | Jan 2017 |
| 6084 | KLM Petroleum Corp. | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 6085 | Klo Oil & Gas, L.L.C. | Tulsa, OK 74120 | Oil & Gas Operator | Jan 2023 |
| 6086 | Klock, Ted | Corsicana, TX 75110 | Oil Operator | Jul 2022 |
| 6087 | Klotzman, M. S. Exploration Co. | Victoria, TX 77903 | Oil & Gas Operator | Dec 2025 |
| 6088 | Klutts, Carlos J. | Austin, TX 78711 | Oil & Gas Operator | Apr 2002 |
| 6089 | KMK Oil & Gas, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Dec 2025 |
| 6090 | KND Oil & Gas, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2023 |
| 6091 | Kneupper Oil, LLC | MC Camey, TX 79752 | Oil & Gas Operator | Dec 2025 |
| 6092 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |
| 6093 | Knickerbocker Land Resources | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2015 |
| 6094 | Knight, Reuben B. | Windthorst, TX 76389 | Oil & Gas Operator | Dec 2025 |
| 6095 | KNK Oil & Gas | Abilene, TX 79602 | Oil & Gas Operator | Dec 1996 |
| 6096 | Knobloch, Albert | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 6097 | Knox Industries, Inc. | Mineral Wells, TX 76068 | Oil & Gas Operator | Dec 2025 |
| 6098 | Knox, D. M., Oil Co. | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2000 |
| 6099 | Knox, H. A. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 6100 | Knox, Jack L. | Coleman, TX 76834 | Oil & Gas Operator | Dec 2025 |