| 16001 | KMD Operating Company LLC | | Oil & Gas Operator | Dec 2015 |
| 16002 | Kmfad Oil And Gas LLC | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2023 |
| 16003 | Kmi Continental Off. Prod. Co. | | Oil & Gas Operator | Jan 1988 |
| 16004 | KMK Oil & Gas, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Sep 2025 |
| 16005 | KMP Operating Inc. | | Oil Operator | Jul 2025 |
| 16006 | KMV Consulting Inc | Winston Salem, NC 27101-2561 | Gas Operator | Dec 2012 |
| 16007 | KN Production Co. | Lakewood, CO 80228 | Oil & Gas Operator | Jun 2003 |
| 16008 | Knaup, Harry J. & Lucille | Shelby, MT 59474 | Oil Operator | Oct 2023 |
| 16009 | KND Oil & Gas, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2023 |
| 16010 | Kneer, Donna | Portland, NY 14769 | Gas Operator | Dec 2024 |
| 16011 | Kneupper Oil, LLC | MC Camey, TX 79752 | Oil & Gas Operator | Sep 2025 |
| 16012 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |
| 16013 | Knickerbocker Land Resources | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2015 |
| 16014 | Knife Oil Company Inc | Cushing, OK 74023-1347 | Oil & Gas Operator | Aug 2000 |
| 16015 | Knife River Oil, LLC | Bull Shoals, AR 72619 | Oil Operator | Feb 2017 |
| 16016 | Knight Casing Pulling Company | | Oil Operator | Jun 1989 |
| 16017 | Knight Energy Inc | Tulsa, OK 74104 | Oil Operator | Jun 2025 |
| 16018 | Knight Exploration, Inc. | | Oil & Gas Operator | Sep 1989 |
| 16019 | Knight Oil Company | Victoria, KS 67671 | Gas Operator | Apr 2025 |
| 16020 | Knight Resources LLC | | Oil & Gas Operator | Dec 2013 |
| 16021 | Knight Resources, Inc. | | Oil & Gas Operator | Dec 2011 |
| 16022 | Knight, Joeann | Kilgore, TX 75662 | Oil Operator | Sep 1989 |
| 16023 | Knight, Michael L. | Ripley, NY 14775 | Gas Operator | Dec 2024 |
| 16024 | Knight, Reuben B. | Windthorst, TX 76389 | Oil & Gas Operator | Sep 2025 |
| 16025 | Knight, Wilbur H. Et Al | | Oil & Gas Operator | Jul 1991 |
| 16026 | Knighton Oil Com | | Oil & Gas Operator | Nov 1996 |
| 16027 | Knighton Oil Company, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Apr 2025 |
| 16028 | Knightsbridge Petroleum Corp. | | Oil Operator | Jul 1991 |
| 16029 | KNK Oil & Gas | Abilene, TX 79602 | Oil & Gas Operator | Dec 1996 |
| 16030 | Knobler, Alfred E | | Oil & Gas Operator | Dec 2003 |
| 16031 | Knobloch, Albert | Graham, TX 76450 | Oil & Gas Operator | Sep 2025 |
| 16032 | Knotts Brothers | Orma, WV 25268-0000 | Oil & Gas Operator | Dec 2021 |
| 16033 | Knox Energy Inc | New Albany, OH 43054 | Oil & Gas Operator | Dec 2024 |
| 16034 | Knox Industries, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Sep 2025 |
| 16035 | Knox, D. M., Oil Co. | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2000 |
| 16036 | Knox, H. A. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 16037 | Knox, Jack L. | Coleman, TX 76834 | Oil & Gas Operator | Sep 2025 |
| 16038 | Knutson Production Company | Loco, OK 73442-9706 | Oil & Gas Operator | May 2025 |
| 16039 | Ko Operating | Merkel, TX 79536 | Oil & Gas Operator | Sep 2025 |
| 16040 | Ko Operating LLC | Austin, TX 78746 | Oil Operator | Sep 2025 |
| 16041 | Kobar Corporation | Riverton, WY 82501 | Gas Operator | Dec 1996 |
| 16042 | Koby Oil Company LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2025 |
| 16043 | Kocana Resources | Ranchos Taos, NM 87557 | Oil & Gas Operator | Jul 1999 |
| 16044 | Koch Exploration | | Oil & Gas Operator | Oct 1988 |
| 16045 | Koch Exploration Company | Houston, TX 77046 | Oil & Gas Operator | Apr 2025 |
| 16046 | Koch Exploration Company, LLC | Denver, CO 80202 | Oil & Gas Operator | Jun 2019 |
| 16047 | Koch Gateway Pipeline Company | | Oil & Gas Operator | Feb 2001 |
| 16048 | Koch Hydrocarbon Company | Wichita, KS 67220-3203 | Oil & Gas Operator | Nov 2014 |
| 16049 | Koch Midstream Services Company | Wichita, KS 67201 | Oil & Gas Operator | Oct 2000 |
| 16050 | Koch Oil Company | | Oil & Gas Operator | May 2017 |
| 16051 | Koch Production Company | Worland, WY 82401 | Oil & Gas Operator | Dec 2002 |
| 16052 | Koch, P. S. | Seguin, TX 78155 | Oil & Gas Operator | May 2018 |
| 16053 | Kocher And Westfall | Middlebourne, WV 26149 | Oil Operator | Dec 2021 |
| 16054 | Koda Operating LLC | Tyler, TX 75703-5596 | Oil & Gas Operator | May 2025 |
| 16055 | Koda Resources Operating, LLC | | Oil & Gas Operator | Jul 2025 |
| 16056 | Kodiak Drilling, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2003 |
| 16057 | Kodiak Energy LLC | Pineville, MO 64856 | Oil Operator | Dec 2019 |
| 16058 | Kodiak Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Sep 2020 |
| 16059 | Kodiak Oil & Gas Exploration Inc | Oklahoma City, OK 73134-1046 | Oil & Gas Operator | May 2025 |
| 16060 | Kodiak Oil & Gas Inc | Muenster, TX 76252 | Oil & Gas Operator | Sep 2025 |
| 16061 | Kodiak Oil Co. | Stockton, MO 65785 | Oil Operator | May 1996 |
| 16062 | Kodiak Operating, L.L.C. | Olney, TX 76374 | Oil & Gas Operator | Sep 2025 |
| 16063 | Kodiak Petroleum Corp. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 1996 |
| 16064 | Kodiak Petroleum, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Apr 2025 |
| 16065 | Kodiak Productions LTD | Big Lake, TX 76932 | Oil & Gas Operator | Mar 2014 |
| 16066 | Kody Petroleum Co., Inc. | Daisetta, TX 77533 | Oil & Gas Operator | Sep 2025 |
| 16067 | Koebley Timothy W | Warren, PA 16365-2102 | Oil & Gas Operator | Dec 2024 |
| 16068 | Koehler Rose Dba R & H Production | Cement, OK 73017 | Oil & Gas Operator | Oct 2021 |
| 16069 | Koehn Alfred D | | Oil & Gas Operator | Sep 1994 |
| 16070 | Koehn Eldon R | | Oil Operator | Dec 2009 |
| 16071 | Koehn Radell W | | Oil Operator | Dec 2009 |
| 16072 | Koehn, Alfred D.(Deceased) | Galva, KS 67443 | Oil Operator | Mar 1998 |
| 16073 | Koehn, Carolyn | Galva, KS 67443 | Oil Operator | Apr 2025 |
| 16074 | Koehn, John W. | Sublette, KS 67877 | Gas Operator | May 2018 |
| 16075 | Koehn, Max R. | Copeland, KS 67837 | Oil & Gas Operator | Oct 2019 |
| 16076 | Koehn, Radell W. And Austin Koehn & Morgan Koehn | Galva, KS 67443 | Oil Operator | Apr 2025 |
| 16077 | Koehn, Roger D. | Galva, KS 67443 | Oil Operator | Apr 1998 |
| 16078 | Koelsch Rex Or Marie | Tulsa, OK 74107-8647 | Oil & Gas Operator | Jul 2024 |
| 16079 | Kohler Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 1994 |
| 16080 | Kohler Industrial Nat. Gas, Inc. | Kohler, WI 53044 | Gas Operator | Dec 2000 |
| 16081 | Kojo Energy, Inc. | Odessa, TX 79760 | Oil & Gas Operator | Sep 2025 |
| 16082 | Koko Skadi, LLC | Austin, TX 78731 | Oil & Gas Operator | Sep 2025 |
| 16083 | Kokomo Energy, Inc. | Gorman, TX 76454 | Oil & Gas Operator | Sep 2025 |
| 16084 | Kokomo Oil Company | Houston, TX 77227 | Oil & Gas Operator | Apr 1998 |
| 16085 | Kolar Petroleum Inc | Oklahoma City, OK 73162-1509 | Oil & Gas Operator | Jun 2007 |
| 16086 | Kolb, James | Aspermont, TX 79502 | Oil & Gas Operator | Jul 2003 |
| 16087 | Kolibri Energy Us, Inc. | Thousand Oaks, CA 91320-1272 | Oil & Gas Operator | May 2025 |
| 16088 | Kollao Properties LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2025 |
| 16089 | Kolodczak, Debra | North Collins, NY 14111 | Gas Operator | Dec 2024 |
| 16090 | Konantz, Inc. | | Oil & Gas Operator | Jan 1995 |
| 16091 | Konantz, Ronald J. Inc. | Houma, LA 70360 | Oil & Gas Operator | Sep 2025 |
| 16092 | Koonce Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Oct 1993 |
| 16093 | Koontz Oil Company | Nocona, TX 76255 | Oil Operator | Aug 2022 |
| 16094 | Kop-Mor Producti | | Oil Operator | Sep 1992 |
| 16095 | Kopco, Inc. | Caney, KS 67333 | Oil & Gas Operator | Jun 2025 |
| 16096 | Koram Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2006 |
| 16097 | Kore Energy LLC | | Oil & Gas Operator | Jun 2025 |
| 16098 | Korman Exploration, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2001 |
| 16099 | Kornblit, Majir | | Oil Operator | Nov 1998 |
| 16100 | Kornye-Tillman Company | Cleburne, TX 76031 | Oil & Gas Operator | Sep 2025 |