| 15101 | Kabco-Pennington | | Oil & Gas Operator | Oct 1996 |
| 15102 | Kachina Exploration Inc | Cheyenne, WY 82003 | Oil & Gas Operator | Jul 2000 |
| 15103 | Kachina Oil & Gas Inc. | Austin, TX 78766 | Oil & Gas Operator | Jul 2002 |
| 15104 | Kachina Oil Comp | | Oil & Gas Operator | Jan 1988 |
| 15105 | Kadane & Sons | | Oil & Gas Operator | May 1978 |
| 15106 | Kadane Corporation | Dallas, TX 75205 | Oil & Gas Operator | Aug 2026 |
| 15107 | Kadane Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 1998 |
| 15108 | Kahan & Assoc In | | Oil Operator | Dec 1996 |
| 15109 | Kahan & Associates Inc | Tulsa, OK 74170 | Oil & Gas Operator | May 2026 |
| 15110 | Kahan Louis | Tulsa, OK 74101 | Oil & Gas Operator | May 1994 |
| 15111 | Kahlenberg Oil And Gas LLC | Conroe, TX 77304 | Oil Operator | Aug 2026 |
| 15112 | Kahn George Operating Co | Seminole, OK 74818 | Oil & Gas Operator | Nov 2000 |
| 15113 | Kain Petroleum Company | Pearsall, TX 78061 | Gas Operator | May 2011 |
| 15114 | Kain Petroleum, LLC | Pearsall, TX 78061 | Oil & Gas Operator | Aug 2026 |
| 15115 | Kainz, David R. | Ottawa, KS 66067 | Oil Operator | Aug 2009 |
| 15116 | Kaiser Aluminum Exploration Co | | Oil & Gas Operator | Dec 1986 |
| 15117 | Kaiser Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 1990 |
| 15118 | Kaiser Farms | Edmond, OK 73025-9489 | Oil & Gas Operator | Apr 2026 |
| 15119 | Kaiser Investments | Sand Springs, OK 74063 | Oil & Gas Operator | Sep 2003 |
| 15120 | Kaiser Oil (U.S.) LTD. | | Oil & Gas Operator | Apr 1983 |
| 15121 | Kaiser Operating, LLC | | Oil & Gas Operator | May 2026 |
| 15122 | Kaiser-Francis O | | Oil & Gas Operator | Oct 1995 |
| 15123 | Kaiser-Francis Oil | | Oil Operator | Nov 1995 |
| 15124 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Aug 2026 |
| 15125 | Kal Energy Inc | Oklahoma City, OK 73116-3606 | Oil Operator | Nov 2014 |
| 15126 | Kal Oil Operations | | Oil Operator | Apr 2026 |
| 15127 | Kala Oil Company | Sundown, TX 79372 | Oil & Gas Operator | Aug 2026 |
| 15128 | Kalda Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 1994 |
| 15129 | Kaler Energy Corp. | Boerne, TX 78006 | Oil & Gas Operator | Aug 2026 |
| 15130 | Kaler Oil Company | Gainesville, TX 76240 | Oil & Gas Operator | Dec 2024 |
| 15131 | Kalkaska Oilfield Services Inc | | Oil Operator | Aug 2006 |
| 15132 | Kalkman Oil Corporation | Duncan, OK 73533 | Oil & Gas Operator | Apr 2026 |
| 15133 | Kalos Corporation | Tyler, TX 75701 | Oil & Gas Operator | Aug 2026 |
| 15134 | Kamc Oil & Gas LLC | Queen Creek, AZ 85142 | Oil Operator | Jan 2011 |
| 15135 | Kamco Hot Oil Service Inc | Cement, OK 73017 | Oil & Gas Operator | May 2026 |
| 15136 | Kamco Limited | Salt Lake City, UT 84105 | Oil Operator | Sep 2016 |
| 15137 | Kamlok Oil & Gas, Inc. | Houston, TX 77240 | Oil & Gas Operator | Jun 1996 |
| 15138 | Kamlok, Inc. | | Oil Operator | Nov 1991 |
| 15139 | Kammer, Walter A. | Holland, NY 14080 | Gas Operator | Dec 2025 |
| 15140 | Kampresco Energy, LLC | Graham, TX 76450 | Oil & Gas Operator | Aug 2026 |
| 15141 | Kan-Cal Enterpri | | Oil Operator | Dec 1988 |
| 15142 | Kan-Tex Drilling Corp. | | Oil Operator | Dec 1981 |
| 15143 | Kan-Texco Incorp | | Oil & Gas Operator | Dec 1994 |
| 15144 | Kana Resources, Inc. | Dallas, TX 75243 | Oil & Gas Operator | Aug 2003 |
| 15145 | Kanaco Oil Company | | Oil Operator | Apr 2025 |
| 15146 | Kanalta Resources, LTD. | Yates Center, KS 66783 | Oil Operator | Jan 1998 |
| 15147 | Kanan Oil & Gas, Inc. | | Oil & Gas Operator | Oct 1987 |
| 15148 | Kandletop Operating, LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Apr 2026 |
| 15149 | Kaneb Energy Company | | Oil & Gas Operator | Jan 1986 |
| 15150 | Kaneb Oil & Gas | | Oil & Gas Operator | Oct 1987 |
| 15151 | Kaneb Oil & Gas Company | | Oil & Gas Operator | Nov 1985 |
| 15152 | Kaneb Operating Company | Dallas, TX 75265-0283 | Oil & Gas Operator | Dec 1995 |
| 15153 | Kaneb Operg Co. LTD. PTN. | | Oil & Gas Operator | Aug 1988 |
| 15154 | Kanmap Incorpora | | Oil & Gas Operator | Dec 1995 |
| 15155 | Kano Partners | | Oil Operator | Sep 1989 |
| 15156 | Kanokla Oil & Gas Corporation | Wellington, KS 67152-0444 | Oil & Gas Operator | Apr 2026 |
| 15157 | Kanpetro, Inc. | | Oil Operator | May 1991 |
| 15158 | Kansas Bourse In | | Oil & Gas Operator | Apr 1985 |
| 15159 | Kansas City Oil, LLC | Parkville, MO 64152 | Oil Operator | Nov 2025 |
| 15160 | Kansas Crude Investments LLC | Hays, KS 67601 | Oil Operator | Apr 2026 |
| 15161 | Kansas Crude Oil | | Oil Operator | Dec 1987 |
| 15162 | Kansas Crude Resources, LLC | | Oil Operator | Apr 2026 |
| 15163 | Kansas Crude, Inc. | Hutchinson, KS 67501 | Oil & Gas Operator | Apr 2003 |
| 15164 | Kansas Energy Company, L.L.C. | Sedan, KS 67361 | Oil & Gas Operator | Apr 2026 |
| 15165 | Kansas Gas Co., Inc. | Wichita Falls, TX 76310 | Gas Operator | Apr 2026 |
| 15166 | Kansas Gas Purchasing | Salina, KS 67401 | Oil & Gas Operator | May 1995 |
| 15167 | Kansas Gas Service | | Oil Operator | Nov 1996 |
| 15168 | Kansas Gas Suppl | | Gas Operator | Sep 1984 |
| 15169 | Kansas Horizon O | | Oil & Gas Operator | Jun 1994 |
| 15170 | Kansas Horizon Oil, Inc. | Windom, KS 67491 | Oil Operator | May 2017 |
| 15171 | Kansas Ka-Tex Joint Venture, A General Partnership | San Antonio, TX 78216 | Gas Operator | Aug 2011 |
| 15172 | Kansas MB Project, LLC | Skiatook, OK 74070 | Oil & Gas Operator | Apr 2026 |
| 15173 | Kansas Natural G | | Oil & Gas Operator | Dec 1996 |
| 15174 | Kansas Natural Gas Operating, LC | Hays, KS 67601 | Gas Operator | Apr 2026 |
| 15175 | Kansas Natural Gas, Inc. | Hays, KS 67601 | Gas Operator | Apr 2026 |
| 15176 | Kansas Oil & Gas Corporation | Woodland HLS, CA 91367 | Oil & Gas Operator | Feb 2001 |
| 15177 | Kansas Oil Company | Kansas City, KS 66117 | Oil Operator | May 1997 |
| 15178 | Kansas Oil Prope | | Oil & Gas Operator | Sep 1991 |
| 15179 | Kansas Oil, Inc. | Chanute, KS 66720 | Oil Operator | Dec 2009 |
| 15180 | Kansas Oil, LLC | | Oil Operator | Apr 2026 |
| 15181 | Kansas Petroleum | | Oil & Gas Operator | Dec 1993 |
| 15182 | Kansas Petroleum, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Jul 2007 |
| 15183 | Kansas Power & L | | Oil Operator | Mar 1982 |
| 15184 | Kansas Renewable Resources, LLC | Great Bend, KS 67530 | Oil Operator | Apr 2026 |
| 15185 | Kansas Resource Exploration & Development, LLC | Overland Park, KS 66202 | Oil Operator | Apr 2026 |
| 15186 | Kansas Resource Exploration And Development | | Oil Operator | Apr 2022 |
| 15187 | Kansons Oil Co. | | Oil Operator | Jan 2014 |
| 15188 | Kant Walter F | Lance Creek, WY 82222 | Oil & Gas Operator | Dec 2002 |
| 15189 | Kantek Tank Service, LLC | | Oil Operator | Apr 2026 |
| 15190 | Kantor Oil Compa | | Oil Operator | Aug 1994 |
| 15191 | Kantor Oil Company LLC | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2026 |
| 15192 | Kar Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Aug 2026 |
| 15193 | Kara Enterprises Inc | Upton, WY 82730 | Oil Operator | Jul 2013 |
| 15194 | Karbank, Barney | Kansas City, MO 64199 | Oil Operator | Sep 2001 |
| 15195 | Karbuhn Oil Company | Tomball, TX 77375 | Oil & Gas Operator | Aug 2026 |
| 15196 | Kardaleff Steven T | Lawton, OK 73507-8471 | Oil Operator | Mar 2015 |
| 15197 | Karen D. Mott & Mark D. Covert | Bolivar, NY 14715 | Oil & Gas Operator | Dec 2025 |
| 15198 | Karenco Energy, Incorporated | Seguin, TX 78155 | Oil & Gas Operator | Oct 1997 |
| 15199 | Karico GP, LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2026 |
| 15200 | Karis Resources, LLC | Tyler, TX 75707 | Oil & Gas Operator | Feb 2019 |