| 3201 | Kiester Operating Company | Oklahoma City, OK 73101-0705 | Oil & Gas Operator | Feb 2024 |
| 3202 | Kile Production | Cypress, TX 77410 | Oil & Gas Operator | Aug 2014 |
| 3203 | Kim Ray Oil & Gas | Ada, OK 74821-0474 | Oil & Gas Operator | Dec 2023 |
| 3204 | Kimball Production Co. | Houston, TX 77042 | Oil & Gas Operator | Jul 2002 |
| 3205 | Kimbark Oil & Gas Company | Denver, CO 80203 | Oil & Gas Operator | May 2007 |
| 3206 | Kimco Oil And Gas | Wewoka, OK 74884-0613 | Oil & Gas Operator | Jul 2016 |
| 3207 | Kimraco Oil Inc | Pawnee, OK 74058-2869 | Oil & Gas Operator | Apr 2016 |
| 3208 | King Energy LLC | Oklahoma City, OK 73116-9044 | Oil & Gas Operator | Feb 2024 |
| 3209 | King Jerry L | Wann, OK 74083-9727 | Oil & Gas Operator | Oct 2019 |
| 3210 | King Operating Corporation | Pampa, TX 79066 | Oil & Gas Operator | Apr 2024 |
| 3211 | Kingery Drilling Co., Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2024 |
| 3212 | Kingfisher CSG Pullr & Const Inc | Hennessey, OK 73742-0024 | Oil & Gas Operator | Apr 2014 |
| 3213 | Kingfisher Resources Inc | Clinton, OK 73601-1237 | Oil & Gas Operator | Feb 2024 |
| 3214 | Kingman Petroleum Inc | Dolores, CO 81323-9503 | Oil & Gas Operator | Mar 2023 |
| 3215 | Kiowa Gas Company | Dallas, TX 75206 | Oil & Gas Operator | Dec 2023 |
| 3216 | Kirby Exploration Co | Houston, TX 77251 | Oil & Gas Operator | Jan 2014 |
| 3217 | Kirk Billie E | Morris, OK 74445-0146 | Oil & Gas Operator | Dec 2023 |
| 3218 | Kirk David | Midland, TX 79705-7433 | Oil & Gas Operator | Jan 2024 |
| 3219 | Kirk Tank Trucks Inc | Morris, OK 74445-4832 | Oil & Gas Operator | Dec 2021 |
| 3220 | Kirkpatrick Oil Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Apr 2024 |
| 3221 | Kirkpatrick W E | Ponca City, OK 74604-4146 | Gas Operator | Oct 2001 |
| 3222 | Kirrie Oil Company LLC | Oklahoma City, OK 73113-0125 | Oil & Gas Operator | Nov 2016 |
| 3223 | Kiska Oil Company | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2019 |
| 3224 | KJB Oil Company LLC | Dewey, OK 74029-3053 | Oil Operator | Dec 2023 |
| 3225 | KJR Services LLC | | Oil & Gas Operator | Dec 2023 |
| 3226 | Klabzuba Brothers LLC | Prague, OK 74864-0567 | Oil & Gas Operator | Jul 2007 |
| 3227 | Klabzuba Oil & Gas Inc | Denver, CO 80202 | Oil & Gas Operator | Aug 2012 |
| 3228 | Klabzuba Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2013 |
| 3229 | Klabzuba Royalty Company | Prague, OK 74864-0567 | Oil & Gas Operator | Dec 2019 |
| 3230 | KLBW Partners LLC | Ratliff City, OK 73481-0088 | Oil & Gas Operator | Jan 2024 |
| 3231 | Kleen Oilfield Services Co | Velma, OK 73491-0178 | Oil & Gas Operator | Nov 2023 |
| 3232 | Klinger Energy Inc | Ponca City, OK 74601-7812 | Oil & Gas Operator | Oct 2019 |
| 3233 | Klinger Shirley | Ponca City, OK 74601-7812 | Oil & Gas Operator | Jan 2024 |
| 3234 | KLM Oil & Gas Company | Tonganoxie, KS 66086 | Oil & Gas Operator | Apr 2014 |
| 3235 | Klo LLC | Tulsa, OK 74120-2428 | Oil & Gas Operator | Feb 2024 |
| 3236 | Kloberdanz, Paul E. | Oklahoma City, OK 73157 | Oil & Gas Operator | Aug 2021 |
| 3237 | Klotzman, M. S. Exploration Co. | Victoria, TX 77903 | Oil & Gas Operator | Apr 2024 |
| 3238 | KN Production Co. | Lakewood, CO 80228 | Oil & Gas Operator | Jun 2003 |
| 3239 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |
| 3240 | Knife Oil Company Inc | Cushing, OK 74023-1347 | Oil & Gas Operator | Aug 2000 |
| 3241 | Knight Energy Inc | | Oil Operator | Feb 2024 |
| 3242 | Knutson Production Company | Loco, OK 73442-9706 | Oil & Gas Operator | Feb 2024 |
| 3243 | Koby Oil Company LLC | Oklahoma City, OK 73101-1945 | Oil & Gas Operator | Jan 2024 |
| 3244 | Koch Hydrocarbon Company | Wichita, KS 67220-3203 | Oil & Gas Operator | Nov 2014 |
| 3245 | Koch Midstream Services Company | Wichita, KS 67201 | Oil & Gas Operator | Oct 2000 |
| 3246 | Koch Oil Company | | Oil & Gas Operator | May 2017 |
| 3247 | Koda Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 3248 | Kodiak Oil & Gas Exploration Inc | | Oil & Gas Operator | Jan 2024 |
| 3249 | Kodiak Oil & Gas Inc | Muenster, TX 76252 | Oil & Gas Operator | Apr 2024 |
| 3250 | Koelsch Rex Or Marie | Tulsa, OK 74107-8647 | Oil & Gas Operator | May 2023 |
| 3251 | Kolar Petroleum Inc | Oklahoma City, OK 73162-1509 | Oil & Gas Operator | Jun 2007 |
| 3252 | Kopco, Inc. | Caney, KS 67333 | Oil & Gas Operator | Jan 2024 |
| 3253 | Kornblit, Majir | | Oil Operator | Nov 1998 |
| 3254 | KP Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 1997 |
| 3255 | KPL Production Company LLC | Oklahoma City, OK 73112-4709 | Oil & Gas Operator | Feb 2017 |
| 3256 | Kraker Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 1995 |
| 3257 | Krebbs A N & Kay | Pawhuska, OK 74056 | Oil Operator | Jan 2024 |
| 3258 | Krebbs, David B | | Oil & Gas Operator | Jan 2024 |
| 3259 | Krotzer Oil Company | Cleveland, OK 74020-0383 | Oil & Gas Operator | Feb 2024 |
| 3260 | KRS Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Apr 2020 |
| 3261 | Krumme Oil Company LLP | Bristow, OK 74010-0749 | Oil & Gas Operator | Jan 2024 |
| 3262 | Krumme Wesley J | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 1997 |
| 3263 | KSW Operating LLC | Bartlesville, OK 74006 | Oil & Gas Operator | Mar 2015 |
| 3264 | KT Energy Inc | Enid, OK 73702-2365 | Oil & Gas Operator | Jan 2024 |
| 3265 | KT Investments Inc | Englewood, FL 34223 | Oil & Gas Operator | Feb 2024 |
| 3266 | KTP Energy, Inc. | Denver, CO 80226 | Oil & Gas Operator | Aug 2019 |
| 3267 | Kuran Resources Inc | | Oil Operator | Jul 2021 |
| 3268 | KWB Oil Property Management Inc | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2024 |
| 3269 | Ky Oil Co | Palco, KS 67657 | Oil & Gas Operator | Aug 2000 |
| 3270 | Kybenco Disposals LLC | | Oil Operator | Sep 2022 |
| 3271 | Kyler Oil Company | Pawhuska, OK 74056-0117 | Oil Operator | Nov 1998 |
| 3272 | L & B Oil Company Inc | Houston, TX 77019-3115 | Oil & Gas Operator | Dec 2023 |
| 3273 | L & F Oil Company | Duncan, OK 73533-3636 | Oil Operator | Jun 2009 |
| 3274 | L & G Petroleum Operating, LLC | Havana, KS 67347 | Oil Operator | Dec 2023 |
| 3275 | L & H Energy Inc | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2019 |
| 3276 | L & L Producers | Independence, KS 67301 | Oil Operator | Jan 2024 |
| 3277 | L & L Smith Energy Corporation | | Oil & Gas Operator | Jan 2023 |
| 3278 | L & M Oil Co. | Yates Center, KS 66783 | Oil & Gas Operator | Dec 1998 |
| 3279 | L & N Exploration Inc | | Oil & Gas Operator | Jul 2013 |
| 3280 | L & R Energy Corporation | Spearman, TX 79081 | Oil & Gas Operator | Nov 2014 |
| 3281 | L & T Disposal LLC | Wilson, OK 73463-6545 | Oil Operator | Mar 2016 |
| 3282 | L And L Production Company | Skellytown, TX 79080 | Oil & Gas Operator | Sep 1996 |
| 3283 | L And R Oil Company | Oakley, KS 67748 | Oil & Gas Operator | Jan 2004 |
| 3284 | L B G Operating Co | Fairfax, OK 74037 | Oil & Gas Operator | Oct 2014 |
| 3285 | L D & Associates | Broken Arrow, OK 74014-1712 | Oil Operator | Feb 2012 |
| 3286 | L E Jones Operating Inc | Duncan, OK 73534 | Oil & Gas Operator | Feb 2024 |
| 3287 | L&L Oil Company LLC | Copan, OK 74022-4608 | Oil Operator | Mar 2014 |
| 3288 | L.L. Oil Company | Freer, TX 78357 | Oil & Gas Operator | Apr 2024 |
| 3289 | Labo Oil Company Inc | Drumright, OK 74030-5619 | Oil & Gas Operator | Jan 2024 |
| 3290 | Lackey Danny | Kiefer, OK 74041-0702 | Oil & Gas Operator | Oct 2022 |
| 3291 | Lackey Raymond R | Lindsay, OK 73052 | Oil & Gas Operator | Jun 2015 |
| 3292 | Lackey Raymond R & Assoc | | Oil & Gas Operator | Jan 2024 |
| 3293 | Lackey WM Oil & Gas Oper Co | Shawnee, OK 74801 | Oil & Gas Operator | Jan 1994 |
| 3294 | Ladd LLC | El Reno, OK 73036-0716 | Oil & Gas Operator | Nov 2018 |
| 3295 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 3296 | Ladder Energy Company | Tulsa, OK 74120-4281 | Oil & Gas Operator | Jan 2018 |
| 3297 | Lagoon Water Logistics LLC | | Oil Operator | Feb 2023 |
| 3298 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | Apr 2024 |
| 3299 | Lahoma Production Inc | Jenks, OK 74037-0487 | Oil & Gas Operator | Nov 2023 |
| 3300 | Laird Anita Louise | Asher, OK 74826-3215 | Oil Operator | Jun 2018 |