| 3401 | Knight Energy Inc | Tulsa, OK 74104 | Oil Operator | Jan 2025 |
| 3402 | Knutson Production Company | Loco, OK 73442-9706 | Oil & Gas Operator | Dec 2024 |
| 3403 | Koby Oil Company LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
| 3404 | Koch Hydrocarbon Company | Wichita, KS 67220-3203 | Oil & Gas Operator | Nov 2014 |
| 3405 | Koch Midstream Services Company | Wichita, KS 67201 | Oil & Gas Operator | Oct 2000 |
| 3406 | Koch Oil Company | | Oil & Gas Operator | May 2017 |
| 3407 | Koda Operating LLC | Tyler, TX 75703-5596 | Oil & Gas Operator | Dec 2024 |
| 3408 | Kodiak Oil & Gas Exploration Inc | Oklahoma City, OK 73134-1046 | Oil & Gas Operator | Dec 2024 |
| 3409 | Kodiak Oil & Gas Inc | Muenster, TX 76252 | Oil & Gas Operator | Mar 2025 |
| 3410 | Koelsch Rex Or Marie | Tulsa, OK 74107-8647 | Oil & Gas Operator | Jul 2024 |
| 3411 | Kolar Petroleum Inc | Oklahoma City, OK 73162-1509 | Oil & Gas Operator | Jun 2007 |
| 3412 | Kolibri Energy Us, Inc. | Thousand Oaks, CA 91320-1272 | Oil & Gas Operator | Dec 2024 |
| 3413 | Kopco, Inc. | Caney, KS 67333 | Oil & Gas Operator | Dec 2024 |
| 3414 | Kornblit, Majir | | Oil Operator | Nov 1998 |
| 3415 | Kouplen Steve | Beggs, OK 74421 | Oil & Gas Operator | Oct 2024 |
| 3416 | KP Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 1997 |
| 3417 | KPL Production Company LLC | Oklahoma City, OK 73112-4709 | Oil & Gas Operator | Feb 2017 |
| 3418 | Kraker Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 1995 |
| 3419 | Krebbs A N & Kay | Pawhuska, OK 74056 | Oil Operator | Dec 2024 |
| 3420 | Krebbs, David B | | Oil & Gas Operator | Dec 2024 |
| 3421 | Krotzer Oil Company | Cleveland, OK 74020 | Oil & Gas Operator | Jan 2025 |
| 3422 | KRS Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Apr 2020 |
| 3423 | Krumme Oil Company LLP | Bristow, OK 74010 | Oil & Gas Operator | Dec 2024 |
| 3424 | Krumme Wesley J | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 1997 |
| 3425 | KSW Operating LLC | Bartlesville, OK 74006 | Oil & Gas Operator | Mar 2015 |
| 3426 | KT Energy Inc | Enid, OK 73702-2365 | Oil & Gas Operator | Dec 2024 |
| 3427 | KT Investments Inc | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2025 |
| 3428 | KTP Energy, Inc. | Denver, CO 80226 | Oil & Gas Operator | Aug 2019 |
| 3429 | Kuran Resources Inc | Wichita Falls, TX 76305-2212 | Oil Operator | Jul 2021 |
| 3430 | KWB Oil Property Management Inc | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2024 |
| 3431 | Ky Oil Co | Palco, KS 67657 | Oil & Gas Operator | Aug 2000 |
| 3432 | Kybenco Disposals LLC | Maysville, OK 73052 | Oil Operator | Sep 2022 |
| 3433 | Kyler Oil Company | Pawhuska, OK 74056-0117 | Oil Operator | Nov 1998 |
| 3434 | L & B Oil Company Inc | Houston, TX 77019-3115 | Oil & Gas Operator | Jan 2025 |
| 3435 | L & F Oil Company | Duncan, OK 73533-3636 | Oil Operator | Jun 2009 |
| 3436 | L & G Petroleum Operating LLC | Havana, KS 67347 | Oil Operator | Nov 2024 |
| 3437 | L & H Energy Inc | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2019 |
| 3438 | L & L Producers | Independnce, KS 67301 | Oil Operator | Dec 2024 |
| 3439 | L & L Smith Energy Corporation | Muskogee, OK 74403-8479 | Oil & Gas Operator | Jan 2023 |
| 3440 | L & M Oil Co. | Yates Center, KS 66783 | Oil & Gas Operator | Dec 1998 |
| 3441 | L & N Exploration Inc | | Oil & Gas Operator | Jul 2013 |
| 3442 | L & R Energy Corporation | Spearman, TX 79081 | Oil & Gas Operator | Nov 2014 |
| 3443 | L & T Disposal LLC | Wilson, OK 73463-6545 | Oil Operator | Mar 2016 |
| 3444 | L And L Production Company | Skellytown, TX 79080 | Oil & Gas Operator | Sep 1996 |
| 3445 | L And R Oil Company | Oakley, KS 67748 | Oil & Gas Operator | Jan 2004 |
| 3446 | L B G Operating Co | Fairfax, OK 74037 | Oil & Gas Operator | Oct 2014 |
| 3447 | L D & Associates | Broken Arrow, OK 74014-1712 | Oil Operator | Feb 2012 |
| 3448 | L E Jones Operating Inc | Duncan, OK 73534 | Oil & Gas Operator | Jan 2025 |
| 3449 | L&L Oil Company LLC | Copan, OK 74022-4608 | Oil Operator | Mar 2014 |
| 3450 | L.L. Oil Company | Freer, TX 78357 | Oil & Gas Operator | Mar 2025 |
| 3451 | Labo Oil Company Inc | Drumright, OK 74030-5619 | Oil & Gas Operator | Dec 2024 |
| 3452 | Lackey Danny | Kiefer, OK 74041-0702 | Oil & Gas Operator | Oct 2022 |
| 3453 | Lackey Raymond R | Lindsay, OK 73052 | Oil & Gas Operator | Jun 2015 |
| 3454 | Lackey Raymond R & Assoc | Sulphur, OK 73086 | Oil & Gas Operator | Jan 2025 |
| 3455 | Lackey WM Oil & Gas Oper Co | Shawnee, OK 74801 | Oil & Gas Operator | Jan 1994 |
| 3456 | Ladd LLC | El Reno, OK 73036 | Oil & Gas Operator | Nov 2018 |
| 3457 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 3458 | Ladder Energy Company | Tulsa, OK 74120-4281 | Oil & Gas Operator | Jan 2018 |
| 3459 | Lagoon Water Logistics LLC | Oklahoma City, OK 73103 | Oil Operator | Jul 2024 |
| 3460 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | Mar 2025 |
| 3461 | Lahoma Production Inc | Jenks, OK 74037 | Oil & Gas Operator | Dec 2024 |
| 3462 | Laird Anita Louise | Asher, OK 74826-3215 | Oil Operator | Jun 2018 |
| 3463 | Laird Bill Oil Company | St Louis, OK 74866 | Oil & Gas Operator | Dec 2024 |
| 3464 | Lake Country Disposal II LLC | Wilson, OK 73463 | Oil Operator | Jan 2025 |
| 3465 | Lake Country Disposal LLC | Ardmore, OK 73401 | Oil Operator | Oct 2024 |
| 3466 | Lake Ronel Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Jul 2017 |
| 3467 | Lakeland Pipeline Inc | Hominy, OK 74035-1006 | Oil & Gas Operator | Jun 2023 |
| 3468 | Lakeshore Operating, LLC | Wichita, KS 67203 | Oil & Gas Operator | Mar 2025 |
| 3469 | Lakewood Disposal LLC | Tulsa, OK 74136-1031 | Oil Operator | Aug 2018 |
| 3470 | Lakewood Energy Solutions LLC | Tulsa, OK 74136 | Oil Operator | Jun 2016 |
| 3471 | Lakewood Oil Company LLC | Mission Hills, KS 66208-2735 | Oil & Gas Operator | May 2013 |
| 3472 | Lakota Oil & Gas | Comanche, OK 73529-9602 | Oil & Gas Operator | May 2014 |
| 3473 | Lam Financial Holdings LTD | Denver, CO 80237 | Oil Operator | Jan 2025 |
| 3474 | Lamamco Drilling Company | Skiatook, OK 74070 | Oil & Gas Operator | Dec 2024 |
| 3475 | Lamb Alan L | Oklahoma City, OK 73120-7824 | Oil & Gas Operator | Feb 2020 |
| 3476 | Lambdin William H | Oklahoma City, OK 73120 | Oil & Gas Operator | Nov 1998 |
| 3477 | Lambert Company LLC | Healdton, OK 73438-0962 | Oil & Gas Operator | Dec 2024 |
| 3478 | Lambert Company The | Healdton, OK 73438-0962 | Oil & Gas Operator | Feb 2023 |
| 3479 | Lambert Oil & Gas LLC | Holdenville, OK 74848-4707 | Oil & Gas Operator | Nov 2024 |
| 3480 | Lamberton Oil Co Inc | Tulsa, OK 74107 | Oil & Gas Operator | May 2013 |
| 3481 | Lamberton W J | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2015 |
| 3482 | Lamima Corporation | Ardmore, OK 73401 | Oil Operator | Nov 1994 |
| 3483 | Laml Compaines LLC | Cleveland, OK 74020 | Oil Operator | Dec 2024 |
| 3484 | Lammerts Robert P | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2002 |
| 3485 | Lance Ruffel Oil & Gas LLC | Oklahoma City, OK 73102-5632 | Oil & Gas Operator | Jan 2025 |
| 3486 | Lancer Energy Corporation | Oklahoma City, OK 73132-5903 | Oil & Gas Operator | May 2015 |
| 3487 | Lancer Petroleum Corporation | Irving, TX 75014 | Oil & Gas Operator | Feb 2014 |
| 3488 | Landers & Musgrove | Okemah, OK 74859 | Oil & Gas Operator | Mar 2015 |
| 3489 | Landers & Musgrove Oil Co. Inc | Okemah, OK 74859-0266 | Oil & Gas Operator | Jan 2018 |
| 3490 | Landers & Waldman Inc | Okemah, OK 74859-0660 | Oil & Gas Operator | May 2013 |
| 3491 | Landers Oil & Gas Inc | Tulsa, OK 74132-2171 | Oil & Gas Operator | Dec 2024 |
| 3492 | Landers Production Company | Granite, OK 73547-0093 | Oil Operator | Apr 2014 |
| 3493 | Landmark Energy LLC | Seminole, OK 74868 | Oil & Gas Operator | Jan 2025 |
| 3494 | Landmark Exploration Co | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2013 |
| 3495 | Landmark Operating Company | Welty, OK 74833-3923 | Oil Operator | Aug 2015 |
| 3496 | Landmark Production Company | MC Gregor, TX 76657 | Oil & Gas Operator | Oct 2010 |
| 3497 | Lanfield Operating LLC | Owasso, OK 74055-7410 | Oil & Gas Operator | Oct 2022 |
| 3498 | Langham Petroleum Expl. Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 2009 |
| 3499 | Langley Harold | Graham, OK 73437 | Oil Operator | Dec 2024 |
| 3500 | Lansden Operating Co LLC | Norman, OK 73070 | Oil & Gas Operator | Dec 1997 |