| 3301 | Kellogg Oil Company | Henryetta, OK 74437 | Oil & Gas Operator | Oct 2024 |
| 3302 | Kelloil Inc | Fort Worth, TX 76116-5600 | Oil & Gas Operator | Mar 2015 |
| 3303 | Kelly Cook Oil LLC | Shawnee, OK 74804-3148 | Oil & Gas Operator | Jan 2025 |
| 3304 | Kelly Jr Walter A Opr Co | Stillwater, OK 74076 | Oil & Gas Operator | Apr 2014 |
| 3305 | Kelly Oil | Tulsa, OK 74105 | Oil Operator | Dec 2000 |
| 3306 | Kelmac Production Company | Braman, OK 74632-0132 | Oil Operator | Apr 2003 |
| 3307 | Kelmar Oil Company | Chickasha, OK 73018 | Oil & Gas Operator | Jan 2025 |
| 3308 | Kelt Oil & Gas | Houston, TX 77060 | Oil & Gas Operator | Dec 1998 |
| 3309 | Kelton Oil & Gas Co | Wheeler, TX 79096 | Oil Operator | Jun 1991 |
| 3310 | Kemmerer Company Inc | Tulsa, OK 74136-7027 | Oil & Gas Operator | Jan 2025 |
| 3311 | Kemp Roy L | | Oil Operator | Jan 2011 |
| 3312 | Ken Snyder Inc | Newalla, OK 74857-7107 | Oil & Gas Operator | Jan 2025 |
| 3313 | Kendol Exploration Inc | Oklahoma City, OK 73105-2513 | Oil & Gas Operator | Jan 2025 |
| 3314 | Kennedy & Mitchell, Inc. | Houston, TX 77084 | Oil & Gas Operator | Aug 2013 |
| 3315 | Kennedy Tracy | Wynona, OK 74084 | Oil Operator | Jan 2025 |
| 3316 | Kennedy, Howard E | | Oil & Gas Operator | May 1997 |
| 3317 | Kenneth W. Cory, LTD. | Bellaire, TX 77401 | Oil & Gas Operator | Jan 2025 |
| 3318 | Keno Oil & Gas Inc | Hennessey, OK 73742 | Oil & Gas Operator | Jan 1995 |
| 3319 | Kent Oil Corporation | Blanchard, OK 73010-3619 | Oil & Gas Operator | Feb 2012 |
| 3320 | Kentry Oil Company | Kingston, OK 73439 | Oil Operator | Aug 2002 |
| 3321 | Kenworthy Operating Company | Tulsa, OK 74132 | Oil & Gas Operator | May 2009 |
| 3322 | Kepasa Corp | Oklahoma City, OK 73106 | Oil & Gas Operator | Jan 2025 |
| 3323 | Kepco Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |
| 3324 | Kepco. Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 3325 | Kerbs Daris | Bartlesville, OK 74003 | Oil Operator | Jul 2018 |
| 3326 | Kerns Larry Dba Kerns Oil | Dewey, OK 74029-2457 | Oil Operator | Nov 2017 |
| 3327 | Kerr McGee Rocky MTN Corp | Denver, CO 80202-5736 | Oil & Gas Operator | Mar 2015 |
| 3328 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Jan 2025 |
| 3329 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 3330 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Apr 2025 |
| 3331 | Kerr-McGee Refining Corp | Oklahoma City, OK 73125 | Oil & Gas Operator | Jun 2007 |
| 3332 | Ketal Oil Producing Company | Fort Worth, TX 76102 | Gas Operator | Sep 1995 |
| 3333 | Key Energy Corporation | Enid, OK 73702-5349 | Oil & Gas Operator | Oct 2017 |
| 3334 | Key Energy Services Inc | Midland, TX 79705-5540 | Oil Operator | Jan 2008 |
| 3335 | Key Oil Company | Duncan, OK 73533 | Oil & Gas Operator | Dec 2021 |
| 3336 | Key Operating Co., Inc. | Duncan, OK 73534-1284 | Oil & Gas Operator | Jan 2025 |
| 3337 | Key Production Company, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2025 |
| 3338 | Keystone Gas Corporation | Drumright, OK 7403O | Oil & Gas Operator | Apr 2015 |
| 3339 | Keystone Oil And Gas Company LLC | Collinsville, OK 74021 | Oil & Gas Operator | Dec 2024 |
| 3340 | Keystone Production Company | Duncan, OK 73533-9117 | Oil & Gas Operator | May 2005 |
| 3341 | Kiamichi Resources Inc | Oklahoma City, OK 73143 | Oil & Gas Operator | Feb 2016 |
| 3342 | Kibtec Oil & Gas Inc | Cashion, OK 73016 | Oil & Gas Operator | Aug 2024 |
| 3343 | Kickapoo Oil Co | Baton Rouge, LA 70815 | Gas Operator | Feb 1994 |
| 3344 | Kidd Bill R | Bristow, OK 74010-9721 | Oil Operator | Jan 2013 |
| 3345 | Kidd Oil & Gas, LC | Dallas, TX 75219 | Oil & Gas Operator | Apr 1999 |
| 3346 | Kiefer Oil And Gas Co Inc | Sapulpa, OK 74066 | Oil & Gas Operator | Apr 2011 |
| 3347 | Kienzle John A | Shawnee, OK 74802-1265 | Oil & Gas Operator | Aug 2013 |
| 3348 | Kiester Operating Company | Oklahoma City, OK 73106 | Oil & Gas Operator | Jan 2025 |
| 3349 | Kile Production | Cypress, TX 77410 | Oil & Gas Operator | Aug 2014 |
| 3350 | Kim Ray Oil & Gas | Ada, OK 74820 | Oil & Gas Operator | Jan 2025 |
| 3351 | Kimball Production Co. | Houston, TX 77042 | Oil & Gas Operator | Jul 2002 |
| 3352 | Kimbark Oil & Gas Company | Denver, CO 80203 | Oil & Gas Operator | May 2007 |
| 3353 | Kimco Oil And Gas | Wewoka, OK 74884-0613 | Oil & Gas Operator | Jul 2016 |
| 3354 | Kimraco Oil Inc | Pawnee, OK 74058-2869 | Oil & Gas Operator | Apr 2016 |
| 3355 | Kinder Oil Properties | Carney, OK 74832-9711 | Gas Operator | Nov 1999 |
| 3356 | King Energy LLC | Oklahoma City, OK 73116-9044 | Oil & Gas Operator | Feb 2025 |
| 3357 | King Jerry L | Wann, OK 74083-9727 | Oil & Gas Operator | Oct 2019 |
| 3358 | King Operating Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Apr 2025 |
| 3359 | Kingdom Resources Inc | Frisco, TX 75033-3673 | Oil & Gas Operator | Jun 2023 |
| 3360 | Kingery Drilling Co., Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Jan 2025 |
| 3361 | Kingfisher CSG Pullr & Const Inc | Hennessey, OK 73742-0024 | Oil & Gas Operator | Apr 2014 |
| 3362 | Kingfisher Resources Inc | Clinton, OK 73601 | Oil & Gas Operator | Feb 2025 |
| 3363 | Kingman Petroleum Inc | Dolores, CO 81323-9503 | Oil & Gas Operator | Dec 2024 |
| 3364 | Kinta Public Works | Kinta, OK 74552 | Oil & Gas Operator | Mar 2011 |
| 3365 | Kiowa Gas Company | Dallas, TX 75206 | Oil & Gas Operator | Dec 2024 |
| 3366 | Kirby Exploration Co | Houston, TX 77251 | Oil & Gas Operator | Jan 2014 |
| 3367 | Kirk Billie E | Morris, OK 74445 | Oil & Gas Operator | Jan 2025 |
| 3368 | Kirk David | Midland, TX 79705 | Oil & Gas Operator | Jan 2025 |
| 3369 | Kirk Tank Trucks Inc | Morris, OK 74445 | Oil & Gas Operator | Dec 2021 |
| 3370 | Kirkpatrick Oil Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Apr 2025 |
| 3371 | Kirkpatrick Ronald B | | Oil & Gas Operator | Jul 2013 |
| 3372 | Kirkpatrick W E | Ponca City, OK 74604-4146 | Gas Operator | Oct 2001 |
| 3373 | Kirrie Oil Company LLC | Oklahoma City, OK 73113-0125 | Oil & Gas Operator | Jan 2025 |
| 3374 | Kiska Oil Company | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2019 |
| 3375 | Kivett Kenneth W | Blackwell, OK 74631-0134 | Oil & Gas Operator | Jun 2001 |
| 3376 | KJB Oil Company LLC | Dewey, OK 74029-3053 | Oil Operator | Nov 2024 |
| 3377 | KJR Services LLC | Edmond, OK 73083 | Oil & Gas Operator | Sep 2024 |
| 3378 | Klabzuba Brothers LLC | Prague, OK 74864-0567 | Oil & Gas Operator | Jul 2007 |
| 3379 | Klabzuba Oil & Gas Inc | Denver, CO 80202 | Oil & Gas Operator | Aug 2012 |
| 3380 | Klabzuba Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2013 |
| 3381 | Klabzuba Royalty Company | Prague, OK 74864-0567 | Oil & Gas Operator | Dec 2019 |
| 3382 | KLBW Partners LLC | Ratliff City, OK 73481 | Oil & Gas Operator | Feb 2025 |
| 3383 | Kleen Oilfield Services Co | Velma, OK 73491-0178 | Oil & Gas Operator | Feb 2025 |
| 3384 | Klingensmith Fred T Etal | Sapulpa, OK 74066 | Oil & Gas Operator | Nov 2007 |
| 3385 | Klinger Energy Inc | Ponca City, OK 74601-7812 | Oil & Gas Operator | Oct 2019 |
| 3386 | Klinger Shirley | Ponca City, OK 74601-7812 | Oil & Gas Operator | Jan 2025 |
| 3387 | KLM Oil & Gas Company | Tonganoxie, KS 66086 | Oil & Gas Operator | Apr 2014 |
| 3388 | Klo LLC | Tulsa, OK 74120-2428 | Oil & Gas Operator | Feb 2025 |
| 3389 | Kloberdanz, Paul E. | Oklahoma City, OK 73157 | Oil & Gas Operator | Aug 2021 |
| 3390 | Klotzman, M. S. Exploration Co. | Victoria, TX 77903 | Oil & Gas Operator | Apr 2025 |
| 3391 | KMV Consulting Inc | Winston Salem, NC 27101-2561 | Gas Operator | Dec 2012 |
| 3392 | KN Production Co. | Lakewood, CO 80228 | Oil & Gas Operator | Jun 2003 |
| 3393 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |
| 3394 | Knife Oil Company Inc | Cushing, OK 74023-1347 | Oil & Gas Operator | Aug 2000 |
| 3395 | Knight Energy Inc | Tulsa, OK 74104 | Oil Operator | Jan 2025 |
| 3396 | Knutson Production Company | Loco, OK 73442-9706 | Oil & Gas Operator | Feb 2025 |
| 3397 | Koby Oil Company LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2025 |
| 3398 | Koch Hydrocarbon Company | Wichita, KS 67220-3203 | Oil & Gas Operator | Nov 2014 |
| 3399 | Koch Midstream Services Company | Wichita, KS 67201 | Oil & Gas Operator | Oct 2000 |
| 3400 | Koch Oil Company | | Oil & Gas Operator | May 2017 |