| 6101 | Kilmarnock Oil Company, Inc. | Corsicana, TX 75110 | Oil & Gas Operator | Feb 2026 |
| 6102 | Kilpatrick Production Company | Tye, TX 79563 | Oil & Gas Operator | Feb 2026 |
| 6103 | Kimball Production Co. | Houston, TX 77042 | Oil & Gas Operator | Jul 2002 |
| 6104 | Kimbell Oil Company Of Texas | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2025 |
| 6105 | Kimbell Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2026 |
| 6106 | Kimberlin & Huitt | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 1998 |
| 6107 | Kimberlin & Miller | Dallas, TX 75230 | Oil & Gas Operator | Feb 2026 |
| 6108 | Kimberlin Energy Group | Dallas, TX 75235 | Oil & Gas Operator | Feb 2026 |
| 6109 | Kimble Oil Company, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2006 |
| 6110 | Kimbrel Oil Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Feb 2026 |
| 6111 | Kimbrough Engineering Co, LLC | New Braunfels, TX 78132 | Oil & Gas Operator | Dec 2014 |
| 6112 | Kimbrough Oil Company | Iraan, TX 79744 | Oil Operator | Feb 2026 |
| 6113 | Kimbrough, D. E. | Iraan, TX 79744 | Oil & Gas Operator | Feb 2026 |
| 6114 | Kimlar Oil Company | Kermit, TX 79745 | Oil & Gas Operator | Feb 2026 |
| 6115 | Kimleco Petroleum, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 6116 | Kimmeridge Texas Gas, LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 6117 | Kimsey, Roy E., Jr. | Midland, TX 79701 | Oil & Gas Operator | May 2018 |
| 6118 | Kincaid Etal, Inc. | Holliday, TX 76366 | Oil Operator | Feb 2026 |
| 6119 | Kincaid, Joey | Holliday, TX 76366 | Oil & Gas Operator | Mar 2005 |
| 6120 | Kincaid/Hadden | Uvalde, TX 78802 | Oil & Gas Operator | Feb 1997 |
| 6121 | Kindee Oil & Gas Texas, LLC | Houston, TX 77084 | Oil & Gas Operator | Apr 2016 |
| 6122 | Kinder & Petty | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 6123 | Kinder Morgan Co2 Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 6124 | Kinder Morgan Production Co LLC | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 6125 | Kinder Morgan Production Co LP | Midland, TX 79701 | Oil & Gas Operator | Jul 2007 |
| 6126 | Kinder Morgan Sacroc LP | Snyder, TX 79549 | Oil & Gas Operator | Dec 2003 |
| 6127 | Kinder Morgan Tejas Pipeline LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 6128 | Kindred Petroleum Company | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 6129 | King & West | Wichita Falls, TX 76307 | Oil & Gas Operator | May 1994 |
| 6130 | King Energy Resources | Kerrville, TX 78029 | Oil & Gas Operator | Feb 2026 |
| 6131 | King Oil & Gas Co. | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 6132 | King Oil & Resources Co | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 6133 | King Operating Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Feb 2026 |
| 6134 | King Ranch Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 1999 |
| 6135 | King Ranch Oil & Gas, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 1997 |
| 6136 | King-Goen Oil, LLC | Abilene, TX 79602 | Oil Operator | Feb 2026 |
| 6137 | Kingdom Resources Corporation | Austin, TX 78701 | Oil & Gas Operator | Sep 1993 |
| 6138 | Kingery Drilling Co., Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Dec 2025 |
| 6139 | Kingery, Johnny | Clyde, TX 79510 | Oil & Gas Operator | Oct 1997 |
| 6140 | Kingfish Gathering LLC | Lago VIsta, TX 78645 | Oil & Gas Operator | Feb 2026 |
| 6141 | Kingman Operating Company, Inc. | Austin, TX 78729 | Oil Operator | Jun 2013 |
| 6142 | Kings CRK Land Oil & Cattle, LLC | Breckenridge, TX 76424 | Oil Operator | Feb 2026 |
| 6143 | Kingwood Exploration LLC | Shreveport, LA 71105 | Oil & Gas Operator | Feb 2026 |
| 6144 | Kingwood Oil Co; Inc | Luling, TX 78648 | Oil & Gas Operator | Nov 2015 |
| 6145 | Kingwood Resources | Luling, TX 78648 | Oil & Gas Operator | Feb 2002 |
| 6146 | Kingwood Resources, Inc. | Kingwood, TX 77339 | Oil & Gas Operator | May 2022 |
| 6147 | Kinlaw Oil Corporation | Dallas, TX 75380 | Oil & Gas Operator | Feb 2026 |
| 6148 | Kinney Incorporated | Andrews, TX 79714 | Oil & Gas Operator | Feb 2026 |
| 6149 | Kintex Petroleum Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 6150 | Kirkpatrick Oil & Gas Co. | Pampa, TX 79066 | Oil & Gas Operator | Apr 1996 |
| 6151 | Kirkpatrick Oil & Gas L.L.C. | Midland, TX 79701 | Oil & Gas Operator | Dec 2010 |
| 6152 | Kirkpatrick Oil Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Feb 2026 |
| 6153 | Kirkpatrick, John Oil LLC | Victoria, TX 77905 | Oil & Gas Operator | Feb 2026 |
| 6154 | Kirkwood & Company | San Antonio, TX 78280 | Oil & Gas Operator | Apr 1995 |
| 6155 | Kismet Properties, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Feb 2026 |
| 6156 | Kiva Resources Inc. | Houston, TX 77265 | Oil & Gas Operator | Mar 2008 |
| 6157 | KJ Energy, LLC | MT Enterprise, TX 75681 | Oil & Gas Operator | Jul 2024 |
| 6158 | Klabzuba Brothers LLC | Prague, OK 74864-0567 | Oil & Gas Operator | Jul 2007 |
| 6159 | Klabzuba Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2013 |
| 6160 | Klabzuba Royalty Company | Prague, OK 74864-0567 | Oil & Gas Operator | Dec 2019 |
| 6161 | Klaeger Operating Company II,LLC | Marble Falls, TX 78654 | Oil Operator | Feb 2026 |
| 6162 | Klaeger Operating Company, LLC | Marble Falls, TX 78654 | Oil Operator | Feb 2026 |
| 6163 | Klaeger, J. H. | Hondo, TX 78861 | Oil & Gas Operator | Dec 2009 |
| 6164 | Klassen Energy, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 6165 | Klause & Klaus Oil Co. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2003 |
| 6166 | Klein, J. L. | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2013 |
| 6167 | KLH Oil & Gas, Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Feb 2026 |
| 6168 | Kling, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Dec 2000 |
| 6169 | Klingberg, Roger | Cross Plains, TX 76443 | Oil & Gas Operator | Jan 2017 |
| 6170 | KLM Petroleum Corp. | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 6171 | Klo Oil & Gas, L.L.C. | Tulsa, OK 74120 | Oil & Gas Operator | Jan 2023 |
| 6172 | Klock, Ted | Corsicana, TX 75110 | Oil Operator | Jul 2022 |
| 6173 | Klotzman, M. S. Exploration Co. | Victoria, TX 77903 | Oil & Gas Operator | Feb 2026 |
| 6174 | Klutts, Carlos J. | Austin, TX 78711 | Oil & Gas Operator | Apr 2002 |
| 6175 | KMK Oil & Gas, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Feb 2026 |
| 6176 | KND Oil & Gas, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2023 |
| 6177 | Kneupper Oil, LLC | MC Camey, TX 79752 | Oil & Gas Operator | Feb 2026 |
| 6178 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |
| 6179 | Knickerbocker Land Resources | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2015 |
| 6180 | Knight, Reuben B. | Windthorst, TX 76389 | Oil & Gas Operator | Feb 2026 |
| 6181 | KNK Oil & Gas | Abilene, TX 79602 | Oil & Gas Operator | Dec 1996 |
| 6182 | Knobloch, Albert | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 6183 | Knox Industries, Inc. | Mineral Wells, TX 76068 | Oil & Gas Operator | Feb 2026 |
| 6184 | Knox, D. M., Oil Co. | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2000 |
| 6185 | Knox, H. A. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 6186 | Knox, Jack L. | Coleman, TX 76834 | Oil & Gas Operator | Feb 2026 |
| 6187 | Ko Operating | Merkel, TX 79536 | Oil & Gas Operator | Feb 2026 |
| 6188 | Ko Operating LLC | Austin, TX 78746 | Oil Operator | Feb 2026 |
| 6189 | Kocana Resources | Ranchos Taos, NM 87557 | Oil & Gas Operator | Jul 1999 |
| 6190 | Koch Exploration Company | Houston, TX 77046 | Oil & Gas Operator | Apr 2003 |
| 6191 | Koch Exploration Company, LLC | Denver, CO 80202 | Oil & Gas Operator | Jun 2019 |
| 6192 | Koch Midstream Services Company | Wichita, KS 67201 | Oil & Gas Operator | Oct 2000 |
| 6193 | Koch, P. S. | Seguin, TX 78155 | Oil & Gas Operator | May 2018 |
| 6194 | Kodiak Drilling, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2003 |
| 6195 | Kodiak Oil & Gas Inc | Muenster, TX 76252 | Oil & Gas Operator | Feb 2026 |
| 6196 | Kodiak Operating, L.L.C. | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 6197 | Kodiak Petroleum Corp. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 1996 |
| 6198 | Kodiak Petroleum Inc | Englewood, CO 80155 | Oil & Gas Operator | Sep 2025 |
| 6199 | Kodiak Productions LTD | Big Lake, TX 76932 | Oil & Gas Operator | Mar 2014 |
| 6200 | Kody Petroleum Co., Inc. | Daisetta, TX 77533 | Oil & Gas Operator | Feb 2026 |