| 16001 | Kerns Larry Dba Kerns Oil | Dewey, OK 74029-2457 | Oil Operator | Nov 2017 |
| 16002 | Kerns O & G, Inc. | San Antonio, TX 78232 | Oil & Gas Operator | Dec 2004 |
| 16003 | Kerns Petroleum, Inc. | San Antonio, TX 78257 | Oil & Gas Operator | Sep 2013 |
| 16004 | Kernview Oil Co. | | Oil & Gas Operator | Dec 2003 |
| 16005 | Kerogen Resources | Gratiot, OH 43740 | Oil & Gas Operator | Dec 2004 |
| 16006 | Kerogen Texas Energy Op LLC | Houston, TX 77060 | Oil & Gas Operator | Feb 2018 |
| 16007 | Kerpoe Stanley J | Tonawanda, NY 14150-8114 | Oil & Gas Operator | Dec 1989 |
| 16008 | Kerr McGee Chem Corp | Oklahoma City, OK 73125-0861 | Gas Operator | Dec 1989 |
| 16009 | Kerr McGee Rocky MTN Corp | Denver, CO 80202-5736 | Oil & Gas Operator | Mar 2015 |
| 16010 | Kerr Oil, LLC | Iola, KS 66749 | Oil Operator | Dec 2009 |
| 16011 | Kerr, Allan A. And Shirley A. | Gowanda, NY 14070 | Gas Operator | Dec 2023 |
| 16012 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Jan 2025 |
| 16013 | Kerr-McGee Oil & Gas Corp. | Houston, TX 77251 | Oil & Gas Operator | Sep 2006 |
| 16014 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 16015 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Apr 2025 |
| 16016 | Kerr-McGee Oil & Gas Onshr LLC | | Oil & Gas Operator | Dec 2005 |
| 16017 | Kerr-McGee Refining Corp | Oklahoma City, OK 73125 | Oil & Gas Operator | Jun 2007 |
| 16018 | Kerr-McGee Rocky Mountain Corp | Denver, CO 80202 | Oil & Gas Operator | Jan 2007 |
| 16019 | Kerrdog Resources, LLC | San Angelo, TX 76904 | Oil & Gas Operator | May 2024 |
| 16020 | Kerry Oil & Gas, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jan 2004 |
| 16021 | Kerry Petroleum Co Inc | Midland, TX 79708 | Oil & Gas Operator | Jun 2010 |
| 16022 | Kersey & Company | Ellijay, GA 30540 | Oil & Gas Operator | Jan 2023 |
| 16023 | Kestrel Energy Inc | Lakewood, CO 80401 | Oil & Gas Operator | Jan 2008 |
| 16024 | Kestrel Resources, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Jan 2017 |
| 16025 | Ketal Oil Producing Company | Fort Worth, TX 76102 | Gas Operator | Sep 1995 |
| 16026 | Ketcham VIctor A | Columbus, OH 43214 | Oil Operator | Dec 2021 |
| 16027 | Kettlebrook Energy, Inc. | Westfield, NY 14787 | Gas Operator | Dec 2023 |
| 16028 | Kevin O Butler & Assoc Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2024 |
| 16029 | Kewanee Oil Comp | | Oil & Gas Operator | Nov 1996 |
| 16030 | Kewanee Oil Company | Houston, TX 77001 | Oil & Gas Operator | Aug 1978 |
| 16031 | Key Energy Corporation | Enid, OK 73702-5349 | Oil & Gas Operator | Oct 2017 |
| 16032 | Key Energy Of Colorado, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2016 |
| 16033 | Key Energy Services Inc | Midland, TX 79705-5540 | Oil Operator | Jan 2008 |
| 16034 | Key Energy Services, Inc.Altd | | Oil Operator | Dec 2006 |
| 16035 | Key Energy Services, LLC | Houston, TX 77042 | Oil Operator | Jan 2025 |
| 16036 | Key Gas Corp. | Wichita, KS 67202 | Oil & Gas Operator | Nov 2018 |
| 16037 | Key Oil Company | Duncan, OK 73533 | Oil & Gas Operator | Dec 2021 |
| 16038 | Key Operating & Equipment, Inc. | Midlothian, TX 76065 | Oil & Gas Operator | Nov 2024 |
| 16039 | Key Operating Co., Inc. | Duncan, OK 73534-1284 | Oil & Gas Operator | Jan 2025 |
| 16040 | Key Petroleum Inc. | Houston, TX 77056 | Oil & Gas Operator | Aug 2003 |
| 16041 | Key Production Company, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2025 |
| 16042 | Key, J. J. | Lubbock, TX 79416 | Oil & Gas Operator | Apr 2025 |
| 16043 | Keyrock Energy LLC | Johnson City, TN 37604-5749 | Oil & Gas Operator | Dec 2024 |
| 16044 | Keys Gerald W Oi | | Oil Operator | Mar 1993 |
| 16045 | Keys, Gerald Oil Production & Explor. | Humboldt, KS 66748 | Oil Operator | Mar 1999 |
| 16046 | Keyse, Ralph L. | Lane, KS 66042 | Oil Operator | Jul 2018 |
| 16047 | Keystate Inc | Davidsville, PA 15928-9655 | Gas Operator | Dec 2012 |
| 16048 | Keystone Acquisitions LLC | Anita, PA 15711-9747 | Gas Operator | Dec 2024 |
| 16049 | Keystone Energy LLC | Farmington, NM 87499 | Oil & Gas Operator | Feb 2025 |
| 16050 | Keystone Energy Oil & Gas, Inc. | Pittsburgh, PA 15222 | Oil & Gas Operator | Dec 2016 |
| 16051 | Keystone Exploration, Inc | College Sta, TX 77845 | Oil & Gas Operator | Apr 2025 |
| 16052 | Keystone Fuel Oil Co | | Gas Operator | Nov 1997 |
| 16053 | Keystone Gas Corporation | Drumright, OK 7403O | Oil & Gas Operator | Apr 2015 |
| 16054 | Keystone Oil And Gas Company LLC | Collinsville, OK 74021 | Oil & Gas Operator | Dec 2024 |
| 16055 | Keystone Oil Co. | Eureka, KS 67045 | Oil Operator | May 2000 |
| 16056 | Keystone Operating Co. | Round Rock, TX 78681 | Oil & Gas Operator | Apr 2025 |
| 16057 | Keystone Petroleum GP LLC | Irving, TX 75039 | Oil & Gas Operator | May 2012 |
| 16058 | Keystone Petroleum NM LLC | Irving, TX 75039 | Oil & Gas Operator | Jan 2016 |
| 16059 | Keystone Production Company | Duncan, OK 73533-9117 | Oil & Gas Operator | May 2005 |
| 16060 | Keystone Productions, LLC | | Gas Operator | Dec 2024 |
| 16061 | Keyway Oil & Gas Operating LLC | Kilgore, TX 75663 | Oil Operator | Oct 2020 |
| 16062 | KFG Petroleum Corporation | | Oil & Gas Operator | Jan 2025 |
| 16063 | KFS Investments, L.L.C. | | Oil & Gas Operator | Jul 2009 |
| 16064 | KG Oil Co | | Oil Operator | Dec 2024 |
| 16065 | Kga Oil Company, Inc. | High Island, TX 77623 | Oil & Gas Operator | Aug 2004 |
| 16066 | KGH Operating Company | Billings, MT 59115 | Oil & Gas Operator | Jan 2025 |
| 16067 | Khoil Dakota Operating, LLC | | Oil & Gas Operator | Feb 2025 |
| 16068 | Kiamichi Resources Inc | Oklahoma City, OK 73143 | Oil & Gas Operator | Feb 2016 |
| 16069 | Kiawah Resources, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2017 |
| 16070 | Kibbe, Anna S. | Falfurrias, TX 78355 | Oil & Gas Operator | Sep 1998 |
| 16071 | Kibtec Oil & Gas Inc | Cashion, OK 73016 | Oil & Gas Operator | Aug 2024 |
| 16072 | Kickapoo Oil Co | Baton Rouge, LA 70815 | Gas Operator | Feb 1994 |
| 16073 | Kidd Bill R | Bristow, OK 74010-9721 | Oil Operator | Jan 2013 |
| 16074 | Kidd Charlie Drilling | Utica, OH 43080 | Oil & Gas Operator | Dec 2002 |
| 16075 | Kidd Johnson Oil & Gas | San Angelo, TX 76904 | Oil & Gas Operator | Feb 2013 |
| 16076 | Kidd Johnson Oil & Gas, LLC | San Angelo, TX 76904 | Oil & Gas Operator | Apr 2025 |
| 16077 | Kidd Oil & Gas, LC | Dallas, TX 75219 | Oil & Gas Operator | Apr 1999 |
| 16078 | Kidd Production Co. | Luling, TX 78648 | Oil & Gas Operator | Apr 2025 |
| 16079 | Kidd William E Production | Gambier, OH 43022 | Oil & Gas Operator | Dec 1993 |
| 16080 | Kidder Exploration Inc | Jamestown, NY 14701-5613 | Gas Operator | Dec 1991 |
| 16081 | Kidder, Bruce | Jamestown, NY 14701 | Gas Operator | Dec 2023 |
| 16082 | Kids Future, L.L.C. | Bivins, TX 75555 | Oil Operator | Apr 2025 |
| 16083 | Kiefer Oil And Gas Co Inc | Sapulpa, OK 74066 | Oil & Gas Operator | Apr 2011 |
| 16084 | Kienzle John A | Shawnee, OK 74802-1265 | Oil & Gas Operator | Aug 2013 |
| 16085 | Kiesling Oil Company | Osage, WY 82723 | Oil & Gas Operator | Oct 2007 |
| 16086 | Kiester Operating Company | Oklahoma City, OK 73106 | Oil & Gas Operator | Jan 2025 |
| 16087 | Kilbarger Investments Inc | Logan, OH 43138 | Oil & Gas Operator | Dec 2022 |
| 16088 | Kilby, M. T. | Yates Center, KS 66783 | Oil Operator | Sep 1986 |
| 16089 | Kilco, Inc. | | Gas Operator | Sep 1996 |
| 16090 | Kile Production | Cypress, TX 77410 | Oil & Gas Operator | Aug 2014 |
| 16091 | Killam Oil Co., LTD. | Laredo, TX 78042 | Oil & Gas Operator | Apr 2025 |
| 16092 | Killam Oil Company | Laredo, TX 78042 | Oil & Gas Operator | Mar 1994 |
| 16093 | Killbuck Creek Oil Co LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2012 |
| 16094 | Killbuck Oilfield Service | Killbuck, OH 44637 | Oil & Gas Operator | Dec 2022 |
| 16095 | Killer Rabbit Fields LLC | Monahans, TX 79756 | Oil & Gas Operator | Apr 2025 |
| 16096 | Killian, Jeffrey M | Bowling Green, KY 42101 | Oil & Gas Operator | Dec 2023 |
| 16097 | Killingsworth Oil Co. | Longview, TX 75606 | Oil & Gas Operator | Apr 2025 |
| 16098 | Killingsworth, Lee Operator | Longview, TX 75601 | Oil & Gas Operator | Jan 1999 |
| 16099 | Killion Well Service Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2014 |
| 16100 | Kilmarnock Oil Company, Inc. | Corsicana, TX 75110 | Oil & Gas Operator | Apr 2025 |