| 15801 | Key, J. J. | Lubbock, TX 79416 | Oil & Gas Operator | Jun 2025 |
| 15802 | Keyrock Energy LLC | Johnson City, TN 37604-5749 | Oil & Gas Operator | Dec 2024 |
| 15803 | Keys Gerald W Oi | | Oil Operator | Mar 1993 |
| 15804 | Keys, Gerald Oil Production & Explor. | Humboldt, KS 66748 | Oil Operator | Mar 1999 |
| 15805 | Keyse, Ralph L. | Lane, KS 66042 | Oil Operator | Jul 2018 |
| 15806 | Keystate Inc | Davidsville, PA 15928-9655 | Gas Operator | Dec 2012 |
| 15807 | Keystone Acquisitions LLC | Anita, PA 15711-9747 | Gas Operator | Dec 2024 |
| 15808 | Keystone Energy LLC | Farmington, NM 87499 | Oil & Gas Operator | May 2025 |
| 15809 | Keystone Energy Oil & Gas Inc | Pittsburgh, PA 15222 | Oil & Gas Operator | Dec 2016 |
| 15810 | Keystone Exploration, Inc | College Sta, TX 77845 | Oil & Gas Operator | Jun 2025 |
| 15811 | Keystone Fuel Oil Co | | Gas Operator | Nov 1997 |
| 15812 | Keystone Oil And Gas Company LLC | Collinsville, OK 74021 | Oil & Gas Operator | Mar 2025 |
| 15813 | Keystone Oil Co. | Eureka, KS 67045 | Oil Operator | May 2000 |
| 15814 | Keystone Operating Co. | Round Rock, TX 78681 | Oil & Gas Operator | Jun 2025 |
| 15815 | Keystone Petroleum GP LLC | Irving, TX 75039 | Oil & Gas Operator | May 2012 |
| 15816 | Keystone Petroleum NM LLC | Irving, TX 75039 | Oil & Gas Operator | Jan 2016 |
| 15817 | Keystone Production Company | Duncan, OK 73533-9117 | Oil & Gas Operator | May 2005 |
| 15818 | Keystone Productions, LLC | | Gas Operator | Dec 2024 |
| 15819 | Keyway Oil & Gas Operating LLC | Kilgore, TX 75663 | Oil Operator | Oct 2020 |
| 15820 | KFG Petroleum Corporation | | Oil & Gas Operator | Apr 2025 |
| 15821 | KFS Investments, L.L.C. | | Oil & Gas Operator | Jul 2009 |
| 15822 | KG Oil Co | | Oil Operator | Jan 2025 |
| 15823 | Kga Oil Company, Inc. | High Island, TX 77623 | Oil & Gas Operator | Aug 2004 |
| 15824 | KGH Operating Company | Billings, MT 59115 | Oil & Gas Operator | Mar 2025 |
| 15825 | Khoil Dakota Operating, LLC | | Oil & Gas Operator | Apr 2025 |
| 15826 | Kiamichi Resources Inc | Oklahoma City, OK 73143 | Oil & Gas Operator | Feb 2016 |
| 15827 | Kiawah Resources, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2017 |
| 15828 | Kibbe, Anna S. | Falfurrias, TX 78355 | Oil & Gas Operator | Sep 1998 |
| 15829 | Kibtec Oil & Gas Inc | Cashion, OK 73016 | Oil & Gas Operator | Aug 2024 |
| 15830 | Kickapoo Oil Co | Baton Rouge, LA 70815 | Gas Operator | Feb 1994 |
| 15831 | Kidd Bill R | Bristow, OK 74010-9721 | Oil Operator | Jan 2013 |
| 15832 | Kidd Charlie Drilling | Utica, OH 43080 | Oil & Gas Operator | Dec 2002 |
| 15833 | Kidd Johnson Oil & Gas | San Angelo, TX 76904 | Oil & Gas Operator | Feb 2013 |
| 15834 | Kidd Johnson Oil & Gas, LLC | San Angelo, TX 76904 | Oil & Gas Operator | Jun 2025 |
| 15835 | Kidd Oil & Gas, LC | Dallas, TX 75219 | Oil & Gas Operator | Apr 1999 |
| 15836 | Kidd Production Co. | Luling, TX 78648 | Oil & Gas Operator | Jun 2025 |
| 15837 | Kidd William E Production | Gambier, OH 43022 | Oil & Gas Operator | Dec 1993 |
| 15838 | Kidder Exploration Inc | Jamestown, NY 14701-5613 | Gas Operator | Dec 1991 |
| 15839 | Kidder, Bruce | Jamestown, NY 14701 | Gas Operator | Dec 2023 |
| 15840 | Kids Future, L.L.C. | Bivins, TX 75555 | Oil Operator | Jun 2025 |
| 15841 | Kiefer Oil And Gas Co Inc | Sapulpa, OK 74066 | Oil & Gas Operator | Apr 2011 |
| 15842 | Kienzle John A | Shawnee, OK 74802-1265 | Oil & Gas Operator | Aug 2013 |
| 15843 | Kiesling Oil Company | Osage, WY 82723 | Oil & Gas Operator | Oct 2007 |
| 15844 | Kiester Operating Company | Oklahoma City, OK 73106 | Oil & Gas Operator | Mar 2025 |
| 15845 | Kilbarger Investments Inc | Logan, OH 43138 | Oil & Gas Operator | Dec 2023 |
| 15846 | Kilby, M. T. | Yates Center, KS 66783 | Oil Operator | Sep 1986 |
| 15847 | Kilco, Inc. | | Gas Operator | Sep 1996 |
| 15848 | Kile Production | Cypress, TX 77410 | Oil & Gas Operator | Aug 2014 |
| 15849 | Killam Oil Co., LTD. | Laredo, TX 78042 | Oil & Gas Operator | Jun 2025 |
| 15850 | Killam Oil Company | Laredo, TX 78042 | Oil & Gas Operator | Mar 1994 |
| 15851 | Killbuck Creek Oil Co LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 15852 | Killbuck Oilfield Service | Killbuck, OH 44637 | Oil & Gas Operator | Dec 2022 |
| 15853 | Killer Rabbit Fields LLC | Monahans, TX 79756 | Oil & Gas Operator | Jun 2025 |
| 15854 | Killian, Jeffrey M | Bowling Green, KY 42101 | Oil & Gas Operator | Dec 2023 |
| 15855 | Killingsworth Oil Co. | Longview, TX 75606 | Oil & Gas Operator | Jun 2025 |
| 15856 | Killingsworth, Lee Operator | Longview, TX 75601 | Oil & Gas Operator | Jan 1999 |
| 15857 | Killion Well Service Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2014 |
| 15858 | Kilmarnock Oil Company, Inc. | Corsicana, TX 75110 | Oil & Gas Operator | Jun 2025 |
| 15859 | Kilpatrick Production Company | Tye, TX 79563 | Oil & Gas Operator | Jun 2025 |
| 15860 | Kilroy Co. Of Texas, Inc. | | Oil & Gas Operator | Jun 1991 |
| 15861 | Kilroy Co.- E.L. Cox | | Oil & Gas Operator | Aug 1990 |
| 15862 | Kim Ray Oil & Gas | Ada, OK 74820 | Oil & Gas Operator | Mar 2025 |
| 15863 | Kimball Production Co. | Houston, TX 77042 | Oil & Gas Operator | Jul 2002 |
| 15864 | Kimbark Oil & Ga | | Oil & Gas Operator | Aug 1992 |
| 15865 | Kimbark Oil & Gas Company | Denver, CO 80203 | Oil & Gas Operator | May 2007 |
| 15866 | Kimbell Oil Company Of Texas | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 15867 | Kimbell Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2025 |
| 15868 | Kimberlin & Huitt | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 1998 |
| 15869 | Kimberlin & Miller | Dallas, TX 75230 | Oil & Gas Operator | Jun 2025 |
| 15870 | Kimberlin Energy Group | Dallas, TX 75235 | Oil & Gas Operator | Jun 2025 |
| 15871 | Kimble Oil Company, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2006 |
| 15872 | Kimbrel Oil Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Jun 2025 |
| 15873 | Kimbrough Engineering Co, LLC | New Braunfels, TX 78132 | Oil & Gas Operator | Dec 2014 |
| 15874 | Kimbrough Oil Company | Iraan, TX 79744 | Oil Operator | Jun 2025 |
| 15875 | Kimbrough, D. E. | Iraan, TX 79744 | Oil & Gas Operator | Jun 2025 |
| 15876 | Kimco Energy Corporation | | Oil & Gas Operator | Apr 1989 |
| 15877 | Kimco Inc. | Spencer, WV 25276-1007 | Oil & Gas Operator | Dec 2021 |
| 15878 | Kimco Oil And Gas | Wewoka, OK 74884-0613 | Oil & Gas Operator | Jul 2016 |
| 15879 | Kime Brothers | Avon, NY 14414 | Gas Operator | Dec 2023 |
| 15880 | Kimlar Oil Company | Kermit, TX 79745 | Oil & Gas Operator | Jun 2025 |
| 15881 | Kimleco Petroleum, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Jun 2025 |
| 15882 | Kimmel Glenn | Shelocta, PA 15774-2233 | Gas Operator | Dec 2024 |
| 15883 | Kimmeridge Texas Gas, LLC | Houston, TX 77024 | Oil & Gas Operator | Jun 2025 |
| 15884 | Kimraco Oil Inc | Pawnee, OK 74058-2869 | Oil & Gas Operator | Apr 2016 |
| 15885 | Kimsey, Roy E., Jr. | Midland, TX 79701 | Oil & Gas Operator | May 2018 |
| 15886 | Kimzey Drilling | | Oil Operator | Nov 2009 |
| 15887 | Kincaid Etal, Inc. | Holliday, TX 76366 | Oil Operator | Jun 2025 |
| 15888 | Kincaid, Joey | Holliday, TX 76366 | Oil & Gas Operator | Mar 2005 |
| 15889 | Kincaid/Hadden | Uvalde, TX 78802 | Oil & Gas Operator | Feb 1997 |
| 15890 | Kindee Oil & Gas Louisiana, LLC | | Oil & Gas Operator | Aug 2012 |
| 15891 | Kindee Oil & Gas Texas, LLC | Houston, TX 77084 | Oil & Gas Operator | Apr 2016 |
| 15892 | Kinder & Petty | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 15893 | Kinder Gas Inc | | Oil Operator | Dec 2011 |
| 15894 | Kinder Morgan Co2 Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 15895 | Kinder Morgan Inc | Lakewood, CO 80228 | Oil & Gas Operator | Dec 2011 |
| 15896 | Kinder Morgan Production Co LLC | Midland, TX 79705 | Oil & Gas Operator | Jun 2025 |
| 15897 | Kinder Morgan Production Co LP | Midland, TX 79701 | Oil & Gas Operator | Jul 2007 |
| 15898 | Kinder Morgan Sacroc LP | Snyder, TX 79549 | Oil & Gas Operator | Dec 2003 |
| 15899 | Kinder Morgan Tejas Pipeline LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2025 |
| 15900 | Kinder Morgan Treating LP | | Oil Operator | Jun 2019 |