| 3301 | Klinger Energy Inc | Ponca City, OK 74601-7812 | Oil & Gas Operator | Oct 2019 |
| 3302 | Klinger Shirley | Ponca City, OK 74601-7812 | Oil & Gas Operator | Nov 2025 |
| 3303 | KLM Oil & Gas Company | Tonganoxie, KS 66086 | Oil & Gas Operator | Apr 2014 |
| 3304 | Klo LLC | Tulsa, OK 74120-2428 | Oil & Gas Operator | Nov 2025 |
| 3305 | Kloberdanz Paul E | Oklahoma City, OK 73157 | Oil & Gas Operator | Aug 2021 |
| 3306 | Klotzman, M. S. Exploration Co. | Victoria, TX 77903 | Oil & Gas Operator | Dec 2025 |
| 3307 | KMV Consulting Inc | Winston Salem, NC 27101-2561 | Gas Operator | Dec 2012 |
| 3308 | KN Production Company | Lakewood, CO 80228 | Oil & Gas Operator | Jun 2003 |
| 3309 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |
| 3310 | Knife Oil Company Inc | Cushing, OK 74023-1347 | Oil & Gas Operator | Aug 2000 |
| 3311 | Knight Energy Inc | Tulsa, OK 74104 | Oil Operator | Oct 2025 |
| 3312 | Knutson Production Company | Loco, OK 73442-9706 | Oil & Gas Operator | Nov 2025 |
| 3313 | Koby Oil Company LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2025 |
| 3314 | Koch Hydrocarbon Company | Wichita, KS 67220-3203 | Oil & Gas Operator | Nov 2014 |
| 3315 | Koch Oil Company | | Oil & Gas Operator | May 2017 |
| 3316 | Koda Operating LLC | Tyler, TX 75703-5596 | Oil & Gas Operator | Oct 2025 |
| 3317 | Kodiak Oil & Gas Exploration Inc | Oklahoma City, OK 73134-1046 | Oil & Gas Operator | Nov 2025 |
| 3318 | Kodiak Oil & Gas Inc | Muenster, TX 76252 | Oil & Gas Operator | Dec 2025 |
| 3319 | Koehler Rose Dba R & H Production | Cement, OK 73017 | Oil & Gas Operator | Oct 2021 |
| 3320 | Koelsch Rex Or Marie | Tulsa, OK 74107-8647 | Oil & Gas Operator | Jul 2024 |
| 3321 | Kolar Petroleum Inc | Oklahoma City, OK 73162-1509 | Oil & Gas Operator | Jun 2007 |
| 3322 | Kolibri Energy Us, Inc. | Thousand Oaks, CA 91320-1272 | Oil & Gas Operator | Nov 2025 |
| 3323 | Kopco Inc | Caney, KS 67333 | Oil & Gas Operator | Oct 2025 |
| 3324 | Kornblit, Majir | | Oil Operator | Nov 1998 |
| 3325 | Kouplen Steve | Beggs, OK 74421 | Oil & Gas Operator | Oct 2024 |
| 3326 | KP Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 1997 |
| 3327 | KPL Production Company LLC | Oklahoma City, OK 73112-4709 | Oil & Gas Operator | Feb 2017 |
| 3328 | Kraker Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 1995 |
| 3329 | Krebbs, David B | | Oil & Gas Operator | Oct 2025 |
| 3330 | Krotzer Oil Company | Cleveland, OK 74020 | Oil & Gas Operator | Oct 2025 |
| 3331 | KRS Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Apr 2020 |
| 3332 | Krumme Oil Company LLP | Bristow, OK 74010 | Oil & Gas Operator | Nov 2025 |
| 3333 | Krumme Wesley J | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 1997 |
| 3334 | KSW Operating,LLC | | Oil & Gas Operator | Mar 2015 |
| 3335 | KT Energy Inc | Enid, OK 73702-2365 | Oil & Gas Operator | Oct 2025 |
| 3336 | KT Investments Inc | Hennessey, OK 73742 | Oil & Gas Operator | Nov 2025 |
| 3337 | KTP Energy, Inc. | Denver, CO 80226 | Oil & Gas Operator | Aug 2019 |
| 3338 | Kuran Resources Inc | Wichita Falls, TX 76305 | Oil Operator | Jul 2021 |
| 3339 | KWB Oil Property Management Inc | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2025 |
| 3340 | Ky Oil Co | Palco, KS 67657 | Oil & Gas Operator | Aug 2000 |
| 3341 | Kybenco Disposals LLC | Maysville, OK 73052 | Oil Operator | Sep 2022 |
| 3342 | Kyler Oil Company | Pawhuska, OK 74056-0117 | Oil Operator | Nov 1998 |
| 3343 | L & B Oil Company Inc | Houston, TX 77019 | Oil & Gas Operator | Mar 2025 |
| 3344 | L & F Oil Company | Duncan, OK 73533-3636 | Oil Operator | Jun 2009 |
| 3345 | L & G Petroleum Operating, LLC | Havana, KS 67347 | Oil Operator | Sep 2025 |
| 3346 | L & H Energy Inc | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2019 |
| 3347 | L & L Producers | Independence, KS 67301 | Oil Operator | Oct 2025 |
| 3348 | L & L Smith Energy Corporation | Muskogee, OK 74403-8479 | Oil & Gas Operator | Jan 2023 |
| 3349 | L & M Oil Co. | Yates Center, KS 66783 | Oil & Gas Operator | Dec 1998 |
| 3350 | L & N Exploration Inc | | Oil & Gas Operator | Jul 2013 |
| 3351 | L & R Energy Corporation | Spearman, TX 79081 | Oil & Gas Operator | Nov 2014 |
| 3352 | L & R Oil Company | Oakley, KS 67748 | Oil & Gas Operator | Jan 2004 |
| 3353 | L & T Disposal LLC | Wilson, OK 73463-6545 | Oil Operator | Mar 2016 |
| 3354 | L And L Production Company | Skellytown, TX 79080 | Oil & Gas Operator | Sep 1996 |
| 3355 | L B G Operating Co | Fairfax, OK 74037 | Oil & Gas Operator | Oct 2014 |
| 3356 | L D & Associates | Broken Arrow, OK 74014-1712 | Oil Operator | Feb 2012 |
| 3357 | L&L Oil Company LLC | Copan, OK 74022-4608 | Oil Operator | Mar 2014 |
| 3358 | L.E. Jones Operating, Inc. | Duncan, OK 73534 | Oil & Gas Operator | Nov 2025 |
| 3359 | L.L. Oil Company | Freer, TX 78357 | Oil & Gas Operator | Dec 2025 |
| 3360 | Labo Oil Company Inc | Drumright, OK 74030-5619 | Oil & Gas Operator | Jul 2025 |
| 3361 | Lackey Danny | Kiefer, OK 74041-0702 | Oil & Gas Operator | Oct 2022 |
| 3362 | Lackey Raymond R | Lindsay, OK 73052 | Oil & Gas Operator | Jun 2015 |
| 3363 | Lackey Raymond R & Assoc | Sulphur, OK 73086 | Oil & Gas Operator | Oct 2025 |
| 3364 | Lackey WM Oil & Gas Oper Co | Shawnee, OK 74801 | Oil & Gas Operator | Jan 1994 |
| 3365 | Ladd LLC | El Reno, OK 73036 | Oil & Gas Operator | Nov 2018 |
| 3366 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 3367 | Ladder Energy Company | Tulsa, OK 74120-4281 | Oil & Gas Operator | Jan 2018 |
| 3368 | Lagoon Water Logistics LLC | Oklahoma City, OK 73103 | Oil Operator | Jul 2024 |
| 3369 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | Dec 2025 |
| 3370 | Lahoma Production Inc | Jenks, OK 74037 | Oil & Gas Operator | Oct 2025 |
| 3371 | Laird Anita Louise | Asher, OK 74826-3215 | Oil Operator | Jun 2018 |
| 3372 | Laird Bill Oil Company | St Louis, OK 74866 | Oil & Gas Operator | Oct 2025 |
| 3373 | Lake Country Disposal II LLC | Wilson, OK 73463 | Oil Operator | Nov 2025 |
| 3374 | Lake Country Disposal LLC | Ardmore, OK 73401 | Oil Operator | Oct 2024 |
| 3375 | Lake Ronel Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Jul 2017 |
| 3376 | Lakeland Pipeline Inc | Hominy, OK 74035-1006 | Oil & Gas Operator | Jun 2023 |
| 3377 | Lakeshore Operating, LLC | Wichita, KS 67203 | Oil & Gas Operator | Dec 2025 |
| 3378 | Lakewood Disposal LLC | Tulsa, OK 74136-1031 | Oil Operator | Aug 2018 |
| 3379 | Lakewood Energy Solutions LLC | | Oil Operator | Jun 2016 |
| 3380 | Lakewood Oil Company LLC | Mission Hills, KS 66208-2735 | Oil & Gas Operator | May 2013 |
| 3381 | Lakota Oil & Gas | Comanche, OK 73529-9602 | Oil & Gas Operator | May 2014 |
| 3382 | Lam Financial Holdings LTD | Greenwood VIllage, CO 80111 | Oil Operator | Nov 2025 |
| 3383 | Lamamco Drilling Company | Skiatook, OK 74070 | Oil & Gas Operator | Oct 2025 |
| 3384 | Lamb Alan L | Oklahoma City, OK 73120-7824 | Oil & Gas Operator | Feb 2020 |
| 3385 | Lambdin William H | Oklahoma City, OK 73120 | Oil & Gas Operator | Nov 1998 |
| 3386 | Lambert Company LLC | Ardmore, OK 73401 | Oil & Gas Operator | Oct 2025 |
| 3387 | Lambert Company The | Healdton, OK 73438-0962 | Oil & Gas Operator | Feb 2023 |
| 3388 | Lambert Oil & Gas LLC | Holdenville, OK 74848 | Oil & Gas Operator | Sep 2025 |
| 3389 | Lamberton Oil Co Inc | Tulsa, OK 74107 | Oil & Gas Operator | May 2013 |
| 3390 | Lamberton W J | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2015 |
| 3391 | Lamima Corporation | Ardmore, OK 73401 | Oil Operator | Nov 1994 |
| 3392 | Laml Compaines LLC | Cleveland, OK 74020 | Oil Operator | Oct 2025 |
| 3393 | Lammerts Robert P | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2002 |
| 3394 | Lance Ruffel Oil & Gas LLC | Oklahoma City, OK 73102-5632 | Oil & Gas Operator | Nov 2025 |
| 3395 | Lancer Energy Corporation | Oklahoma City, OK 73132-5903 | Oil & Gas Operator | May 2015 |
| 3396 | Lancer Petroleum Corporation | Irving, TX 75014 | Oil & Gas Operator | Feb 2014 |
| 3397 | Landers & Musgrove | Okemah, OK 74859 | Oil & Gas Operator | Mar 2015 |
| 3398 | Landers & Musgrove Oil Co. Inc | Okemah, OK 74859-0266 | Oil & Gas Operator | Jan 2018 |
| 3399 | Landers & Waldman Inc | Okemah, OK 74859-0660 | Oil & Gas Operator | May 2013 |
| 3400 | Landers Oil & Gas Inc | Tulsa, OK 74132-2171 | Oil & Gas Operator | Oct 2025 |