| 5901 | Killion Well Service Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2014 |
| 5902 | Kilmarnock Oil Company, Inc. | Corsicana, TX 75110 | Oil & Gas Operator | Apr 2026 |
| 5903 | Kilpatrick Production Company | Tye, TX 79563 | Oil & Gas Operator | Apr 2026 |
| 5904 | Kimball Production Co. | Houston, TX 77042 | Oil & Gas Operator | Jul 2002 |
| 5905 | Kimbell Oil Company Of Texas | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2026 |
| 5906 | Kimbell Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2026 |
| 5907 | Kimberlin & Huitt | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 1998 |
| 5908 | Kimberlin & Miller | Dallas, TX 75230 | Oil & Gas Operator | Apr 2026 |
| 5909 | Kimberlin Energy Group | Dallas, TX 75235 | Oil & Gas Operator | Apr 2026 |
| 5910 | Kimble Oil Company, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2006 |
| 5911 | Kimbrel Oil Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Apr 2026 |
| 5912 | Kimbrough Engineering Co, LLC | New Braunfels, TX 78132 | Oil & Gas Operator | Dec 2014 |
| 5913 | Kimbrough Oil Company | Iraan, TX 79744 | Oil Operator | Apr 2026 |
| 5914 | Kimbrough, D. E. | Iraan, TX 79744 | Oil & Gas Operator | Apr 2026 |
| 5915 | Kimlar Oil Company | Kermit, TX 79745 | Oil & Gas Operator | Apr 2026 |
| 5916 | Kimleco Petroleum, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2026 |
| 5917 | Kimmeridge Texas Gas, LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 5918 | Kimsey, Roy E., Jr. | Midland, TX 79701 | Oil & Gas Operator | May 2018 |
| 5919 | Kincaid Etal, Inc. | Holliday, TX 76366 | Oil Operator | Apr 2026 |
| 5920 | Kincaid, Joey | Holliday, TX 76366 | Oil & Gas Operator | Mar 2005 |
| 5921 | Kindee Oil & Gas Texas, LLC | Houston, TX 77084 | Oil & Gas Operator | Apr 2016 |
| 5922 | Kinder & Petty | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 5923 | Kinder Morgan Co2 Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Jan 2026 |
| 5924 | Kinder Morgan Production Co LLC | Midland, TX 79705 | Oil & Gas Operator | Apr 2026 |
| 5925 | Kinder Morgan Production Co LP | Midland, TX 79701 | Oil & Gas Operator | Jul 2007 |
| 5926 | Kinder Morgan Sacroc LP | Snyder, TX 79549 | Oil & Gas Operator | Dec 2003 |
| 5927 | Kinder Morgan Tejas Pipeline LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2026 |
| 5928 | Kindred Petroleum Company | Midland, TX 79702 | Oil & Gas Operator | Apr 2026 |
| 5929 | King & West | Wichita Falls, TX 76307 | Oil & Gas Operator | May 1994 |
| 5930 | King Energy Resources | Kerrville, TX 78029 | Oil & Gas Operator | Apr 2026 |
| 5931 | King Oil & Gas Co. | Cisco, TX 76437 | Oil & Gas Operator | Apr 2026 |
| 5932 | King Oil & Resources Co | Midland, TX 79705 | Oil & Gas Operator | Apr 2026 |
| 5933 | King Operating Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Apr 2026 |
| 5934 | King Ranch Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 1999 |
| 5935 | King Ranch Oil & Gas, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 1997 |
| 5936 | King-Goen Oil, LLC | Abilene, TX 79602 | Oil Operator | Apr 2026 |
| 5937 | Kingdom Resources Corporation | Austin, TX 78701 | Oil & Gas Operator | Sep 1993 |
| 5938 | Kingery Drilling Co., Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2026 |
| 5939 | Kingery, Johnny | Clyde, TX 79510 | Oil & Gas Operator | Oct 1997 |
| 5940 | Kingfish Gathering LLC | Lago VIsta, TX 78645 | Oil & Gas Operator | Apr 2026 |
| 5941 | Kingman Operating Company, Inc. | Austin, TX 78729 | Oil Operator | Jun 2013 |
| 5942 | Kings CRK Land Oil & Cattle, LLC | Breckenridge, TX 76424 | Oil Operator | Apr 2026 |
| 5943 | Kingwood Exploration LLC | Shreveport, LA 71105 | Oil & Gas Operator | Apr 2026 |
| 5944 | Kingwood Oil Co; Inc | Luling, TX 78648 | Oil & Gas Operator | Nov 2015 |
| 5945 | Kingwood Resources | Luling, TX 78648 | Oil & Gas Operator | Feb 2002 |
| 5946 | Kingwood Resources, Inc. | Kingwood, TX 77339 | Oil & Gas Operator | May 2022 |
| 5947 | Kinlaw Oil Corporation | Dallas, TX 75380 | Oil & Gas Operator | Apr 2026 |
| 5948 | Kinney Incorporated | Andrews, TX 79714 | Oil & Gas Operator | Apr 2026 |
| 5949 | Kintex Petroleum Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2026 |
| 5950 | Kirkpatrick Oil & Gas Co. | Pampa, TX 79066 | Oil & Gas Operator | Apr 1996 |
| 5951 | Kirkpatrick Oil & Gas L.L.C. | Midland, TX 79701 | Oil & Gas Operator | Dec 2010 |
| 5952 | Kirkpatrick Oil Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Apr 2026 |
| 5953 | Kirkpatrick, John Oil LLC | Victoria, TX 77905 | Oil & Gas Operator | Apr 2026 |
| 5954 | Kismet Properties, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Apr 2026 |
| 5955 | Kiva Resources Inc. | Houston, TX 77265 | Oil & Gas Operator | Mar 2008 |
| 5956 | KJ Energy, LLC | MT Enterprise, TX 75681 | Oil & Gas Operator | Jul 2024 |
| 5957 | Klabzuba Brothers LLC | Prague, OK 74864-0567 | Oil & Gas Operator | Jul 2007 |
| 5958 | Klabzuba Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2013 |
| 5959 | Klabzuba Royalty Company | Prague, OK 74864-0567 | Oil & Gas Operator | Dec 2019 |
| 5960 | Klaeger Operating Company II,LLC | Marble Falls, TX 78654 | Oil Operator | Apr 2026 |
| 5961 | Klaeger Operating Company, LLC | Marble Falls, TX 78654 | Oil Operator | Apr 2026 |
| 5962 | Klaeger, J. H. | Hondo, TX 78861 | Oil & Gas Operator | Dec 2009 |
| 5963 | Klassen Energy, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Apr 2026 |
| 5964 | Klause & Klaus Oil Co. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2003 |
| 5965 | Klein, J. L. | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2013 |
| 5966 | KLH Oil & Gas, Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Apr 2026 |
| 5967 | Kling, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Dec 2000 |
| 5968 | Klingberg, Roger | Cross Plains, TX 76443 | Oil & Gas Operator | Jan 2017 |
| 5969 | KLM Petroleum Corp. | Midland, TX 79705 | Oil & Gas Operator | Apr 2026 |
| 5970 | Klo Oil & Gas, L.L.C. | Tulsa, OK 74120 | Oil & Gas Operator | Jan 2023 |
| 5971 | Klock, Ted | Corsicana, TX 75110 | Oil Operator | Jul 2022 |
| 5972 | Klotzman, M. S. Exploration Co. | Victoria, TX 77903 | Oil & Gas Operator | Apr 2026 |
| 5973 | Klutts, Carlos J. | Austin, TX 78711 | Oil & Gas Operator | Apr 2002 |
| 5974 | KMK Oil & Gas, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Apr 2026 |
| 5975 | KND Oil & Gas, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2023 |
| 5976 | Kneupper Oil, LLC | MC Camey, TX 79752 | Oil & Gas Operator | Apr 2026 |
| 5977 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |
| 5978 | Knickerbocker Land Resources | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2015 |
| 5979 | Knight, Reuben B. | Windthorst, TX 76389 | Oil & Gas Operator | Apr 2026 |
| 5980 | KNK Oil & Gas | Abilene, TX 79602 | Oil & Gas Operator | Dec 1996 |
| 5981 | Knobloch, Albert | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 5982 | Knox Industries, Inc. | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2026 |
| 5983 | Knox, D. M., Oil Co. | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2000 |
| 5984 | Knox, H. A. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 5985 | Knox, Jack L. | Coleman, TX 76834 | Oil & Gas Operator | Apr 2026 |
| 5986 | Ko Operating | Merkel, TX 79536 | Oil & Gas Operator | Apr 2026 |
| 5987 | Ko Operating LLC | Austin, TX 78746 | Oil Operator | Apr 2026 |
| 5988 | Kocana Resources | Ranchos Taos, NM 87557 | Oil & Gas Operator | Jul 1999 |
| 5989 | Koch Exploration Company | Houston, TX 77046 | Oil & Gas Operator | Apr 2003 |
| 5990 | Koch Exploration Company, LLC | Denver, CO 80202 | Oil & Gas Operator | Jun 2019 |
| 5991 | Koch Midstream Services Company | Wichita, KS 67201 | Oil & Gas Operator | Oct 2000 |
| 5992 | Koch, P. S. | Seguin, TX 78155 | Oil & Gas Operator | May 2018 |
| 5993 | Kodiak Drilling, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2003 |
| 5994 | Kodiak Oil & Gas Inc | Muenster, TX 76252 | Oil & Gas Operator | Apr 2026 |
| 5995 | Kodiak Operating, L.L.C. | Olney, TX 76374 | Oil & Gas Operator | Apr 2026 |
| 5996 | Kodiak Petroleum Corp. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 1996 |
| 5997 | Kodiak Petroleum Inc | Englewood, CO 80155 | Oil & Gas Operator | Dec 2025 |
| 5998 | Kodiak Productions LTD | Big Lake, TX 76932 | Oil & Gas Operator | Mar 2014 |
| 5999 | Kody Petroleum Co., Inc. | Daisetta, TX 77533 | Oil & Gas Operator | Apr 2026 |
| 6000 | Kohler Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 1994 |