| 16201 | Kukui Operating Company | Ignacio, CO 81137 | Oil & Gas Operator | May 2013 |
| 16202 | Kulka And Schmidt Inc | | Oil & Gas Operator | Dec 1992 |
| 16203 | Kundtz Properties Inc | Orange VIllage, OH 44122 | Gas Operator | Dec 2024 |
| 16204 | Kunkel, Richard A. DDS & Susan K. | Little Valley, NY 14755 | Gas Operator | Dec 2024 |
| 16205 | Kunu Energy LLC | Wichita Falls, TX 76310 | Oil Operator | Sep 2025 |
| 16206 | Kuran Resources | Wichita Falls, TX 76308 | Oil Operator | Sep 2025 |
| 16207 | Kuran Resources Inc | Wichita Falls, TX 76305-2212 | Oil Operator | Jul 2021 |
| 16208 | Kutter Oil Co. | Eureka, KS 67045 | Oil Operator | May 2002 |
| 16209 | Kutter Oil, Inc. | Eureka, KS 67045 | Oil Operator | Mar 2022 |
| 16210 | Kuykendall, IValene Estate | Electra, TX 76360 | Oil & Gas Operator | Dec 1998 |
| 16211 | Kuykendall, M. C. | Electra, TX 76360 | Oil & Gas Operator | Apr 1995 |
| 16212 | Kuykendall, M.C., Estate | Electra, TX 76360 | Oil & Gas Operator | Aug 2003 |
| 16213 | KV Oil & Gas, Inc. | | Oil & Gas Operator | Dec 2006 |
| 16214 | KVL Operating, LLC | Midland, TX 79708 | Oil & Gas Operator | Sep 2025 |
| 16215 | KWB Oil Property | | Oil Operator | Oct 1992 |
| 16216 | KWB Oil Property Management Inc | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2025 |
| 16217 | Kwilos, Stanley | Angola, NY 14006 | Gas Operator | Dec 2024 |
| 16218 | KWR Ventures LLC | Harrisburg, IL 62946 | Oil Operator | Dec 2023 |
| 16219 | KWS Oil & Gas, LLC | El Campo, TX 77437 | Oil & Gas Operator | Sep 2025 |
| 16220 | Ky Crude LLC | Bowling Green, KY 42103 | Oil Operator | Dec 2021 |
| 16221 | Ky Energy Group, LLC | | Oil & Gas Operator | Dec 2015 |
| 16222 | Ky Ohio Gas Co | | Oil Operator | Dec 2021 |
| 16223 | Ky Oil Co | Palco, KS 67657 | Oil & Gas Operator | Aug 2000 |
| 16224 | Ky-Tenn Expl Co, Inc | New Concord, OH 43762 | Oil & Gas Operator | Dec 2023 |
| 16225 | Kybenco Disposals LLC | Maysville, OK 73052 | Oil Operator | Sep 2022 |
| 16226 | Kykon Oil & Gas, Inc. | Billings, MT 59103 | Oil & Gas Operator | Feb 2009 |
| 16227 | Kykuit Resources, LLC | Winifred, MT 59489 | Gas Operator | Mar 2021 |
| 16228 | Kyl-Kat Petroleum | | Oil & Gas Operator | Oct 1996 |
| 16229 | Kylander Oil Inc | Warren, PA 16365-4366 | Oil & Gas Operator | Dec 2024 |
| 16230 | Kyle Energy Inc NV | Apollo, PA 15613-0249 | Gas Operator | Dec 1996 |
| 16231 | Kyler Oil Company | Pawhuska, OK 74056-0117 | Oil Operator | Nov 1998 |
| 16232 | Kynge Energy Investments LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2025 |
| 16233 | Kynosa Inc. | Levelland, TX 79336 | Oil & Gas Operator | Jun 1998 |
| 16234 | Kytex, Inc. | Wichita, KS 67230 | Oil Operator | Dec 2019 |
| 16235 | Kytx Energy Inc | Mason, OH 45040 | Oil & Gas Operator | Dec 2024 |
| 16236 | Kytx Oil & Gas, LLC | Gray, KY 40734 | Oil & Gas Operator | Dec 2021 |
| 16237 | KZ Global Energy, LLC | Houston, TX 77042 | Oil & Gas Operator | Sep 2025 |
| 16238 | L & A Energy LP | | Oil Operator | May 2025 |
| 16239 | L & A Oil Compan | | Oil Operator | Sep 1991 |
| 16240 | L & B Crude, Inc. | Yates Center, KS 66783 | Oil Operator | Nov 2019 |
| 16241 | L & B Energy LLP | Kingsville, OH 44048 | Oil & Gas Operator | Dec 2023 |
| 16242 | L & B Enterprise | | Gas Operator | Jul 1990 |
| 16243 | L & B Oil | Longton, KS 67352 | Oil Operator | Dec 2019 |
| 16244 | L & B Oil & Gas, Inc | Harold, KY 41635 | Oil & Gas Operator | Dec 2023 |
| 16245 | L & B Oil And Gas Equipment, LLC | Palmhurst, TX 78573 | Oil & Gas Operator | Sep 2025 |
| 16246 | L & B Oil Company Inc | Houston, TX 77019-3115 | Oil & Gas Operator | Mar 2025 |
| 16247 | L & B Production | Big Lake, TX 76932 | Oil & Gas Operator | Sep 2025 |
| 16248 | L & D Operation | Victoria, KS 67671 | Oil Operator | Jun 1988 |
| 16249 | L & D, Inc. | San Angelo, TX 76906 | Oil & Gas Operator | May 2019 |
| 16250 | L & F Drilling Co., Inc. (1) | Corpus Chrsti, TX 78479 | Oil & Gas Operator | Sep 2025 |
| 16251 | L & F Oil Company | Duncan, OK 73533-3636 | Oil Operator | Jun 2009 |
| 16252 | L & F Oil Operat | | Oil Operator | Sep 1987 |
| 16253 | L & G Energy | | Oil & Gas Operator | Mar 1994 |
| 16254 | L & G Oil Company | Longview, TX 75606 | Oil & Gas Operator | Aug 2000 |
| 16255 | L & G Operating, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2021 |
| 16256 | L & G Petroleum Operating, LLC | Havana, KS 67347 | Oil Operator | May 2025 |
| 16257 | L & H Energy Co Inc | Knox, PA 16232-4874 | Oil & Gas Operator | Dec 2020 |
| 16258 | L & H Energy Inc | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2019 |
| 16259 | L & H Oil Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 1999 |
| 16260 | L & J Exploration, LLC | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Sep 2025 |
| 16261 | L & J Oil | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2000 |
| 16262 | L & J Oil Co. | Borger, TX 79007 | Oil & Gas Operator | Apr 1999 |
| 16263 | L & J Oil Proper | | Oil Operator | Dec 1996 |
| 16264 | L & J Operating Inc | Gillette, WY 82718 | Oil & Gas Operator | Aug 2016 |
| 16265 | L & K Oil | | Oil Operator | Oct 1997 |
| 16266 | L & L Energy Company | Huntington, AR 72940 | Oil & Gas Operator | Jan 2025 |
| 16267 | L & L Oil Compan | | Oil Operator | Oct 1984 |
| 16268 | L & L Producers | Independnce, KS 67301 | Oil Operator | Jun 2025 |
| 16269 | L & L Resources, Inc. | Hays, KS 67601 | Oil Operator | Mar 1986 |
| 16270 | L & L Smith Energy Corporation | Muskogee, OK 74403-8479 | Oil & Gas Operator | Jan 2023 |
| 16271 | L & L Supply | | Oil Operator | Dec 1994 |
| 16272 | L & M Oil Co. | Yates Center, KS 66783 | Oil & Gas Operator | Dec 1998 |
| 16273 | L & M Oil Compan | | Oil & Gas Operator | Dec 1986 |
| 16274 | L & M Operating, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Sep 2025 |
| 16275 | L & M Petroleum Co | Reno, OH 45773 | Oil & Gas Operator | Dec 1987 |
| 16276 | L & N Co. | | Oil Operator | Jul 1991 |
| 16277 | L & N Exploration Inc | | Oil & Gas Operator | Jul 2013 |
| 16278 | L & P Enterprises, LLC | Paola, KS 66071 | Oil Operator | May 2025 |
| 16279 | L & R Drilling Company | Belle Fourche, SD 57717 | Oil & Gas Operator | Dec 1999 |
| 16280 | L & R Energy Corporation | Spearman, TX 79081 | Oil & Gas Operator | Nov 2014 |
| 16281 | L & R Oil, Inc. | Great Bend, KS 67530 | Oil Operator | May 2025 |
| 16282 | L & R Petroleum | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2025 |
| 16283 | L & S Drilling, Inc. | Kamay, TX 76369 | Oil & Gas Operator | Mar 2016 |
| 16284 | L & S Oil And Gas | Newark, OH 43055-8732 | Oil & Gas Operator | Dec 2014 |
| 16285 | L & S Service Corp. | | Oil Operator | Jul 1989 |
| 16286 | L & T Disposal LLC | Wilson, OK 73463-6545 | Oil Operator | Mar 2016 |
| 16287 | L & T Exploration | | Oil & Gas Operator | Dec 1987 |
| 16288 | L & W Oil & Gas, Inc. | | Oil & Gas Operator | May 1994 |
| 16289 | L & W Operators | Pampa, TX 79066 | Oil & Gas Operator | Jan 2018 |
| 16290 | L A Productions | Sunset, TX 76270 | Oil & Gas Operator | Sep 2025 |
| 16291 | L And C Leasing, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2019 |
| 16292 | L And C Oil Company | | Oil Operator | Aug 1996 |
| 16293 | L And G Drilling | | Oil Operator | Jun 1987 |
| 16294 | L And J Oil Comp | | Oil Operator | Dec 1996 |
| 16295 | L And L Production Company | Skellytown, TX 79080 | Oil & Gas Operator | Sep 1996 |
| 16296 | L And R Oil Company | Oakley, KS 67748 | Oil & Gas Operator | Jan 2004 |
| 16297 | L B Exploration Inc | Wichita, KS 67205 | Oil & Gas Operator | Jul 2025 |
| 16298 | L B G Operating Co | Fairfax, OK 74037 | Oil & Gas Operator | Oct 2014 |
| 16299 | L B Industries Inc | Englewood, CO 80112 | Oil & Gas Operator | Jun 2003 |
| 16300 | L B Petroleum In | | Oil Operator | Nov 1995 |