| 3401 | Production Drilling, Inc. | Hays, KS 67601 | Oil Operator | Feb 2026 |
| 3402 | Production Maintenance Service | | Oil & Gas Operator | Jun 2020 |
| 3403 | Production Manag | | Oil Operator | Dec 1986 |
| 3404 | Production Team | | Oil & Gas Operator | Sep 1991 |
| 3405 | Prolific Resources LLC | Wichita, KS 67208 | Oil & Gas Operator | Feb 2026 |
| 3406 | Prospect Oil & G | | Oil Operator | Feb 1996 |
| 3407 | Prospect Oil & Gas Corp | Russell, KS 67665 | Oil Operator | Feb 2026 |
| 3408 | Prospective Inv. & Trading Co., LTD., The | Tulsa, OK 74170 | Oil Operator | Dec 2019 |
| 3409 | Prospective Invs | | Oil & Gas Operator | Jun 1994 |
| 3410 | Protege Energy LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jan 2018 |
| 3411 | Provecho Partners | Hays, KS 67601 | Oil Operator | Apr 2005 |
| 3412 | Providence Energ | | Oil & Gas Operator | Jul 1988 |
| 3413 | Provine, B.R. | Wichita, KS 67226 | Oil Operator | Apr 2010 |
| 3414 | Pryor Oil Compan | | Oil & Gas Operator | Nov 1994 |
| 3415 | Pryor VIctor W Jr | Holdenville, OK 74848 | Oil & Gas Operator | Apr 2017 |
| 3416 | PT Oil LLC | Osage City, KS 66523 | Oil & Gas Operator | Feb 2026 |
| 3417 | Ptarmigan Inc | Leavenworth, KS 66048 | Oil Operator | Nov 2009 |
| 3418 | Pup Oil Company | | Oil Operator | Dec 1996 |
| 3419 | Pure Energy Prod | | Oil Operator | Sep 1992 |
| 3420 | Purkeypile, Doyle | Eureka, KS 67045 | Oil Operator | Oct 1995 |
| 3421 | Pyle Petroleum, Inc. | Tyler, TX 75703 | Oil & Gas Operator | Apr 2025 |
| 3422 | Pyramid Corporat | | Oil & Gas Operator | Aug 1995 |
| 3423 | Pyramid Oil & Ga | | Oil & Gas Operator | Sep 1987 |
| 3424 | Pyro Energy Corp | Kingwood, TX 77339-2102 | Oil & Gas Operator | Mar 1998 |
| 3425 | Pywell Venture A | | Oil Operator | Apr 1988 |
| 3426 | Quad Operating, LLC | Garnett, KS 66032 | Oil Operator | Dec 2019 |
| 3427 | Quadel Energy Co | | Oil & Gas Operator | Feb 1994 |
| 3428 | Quail Oil & Gas LC | Garden City, KS 67846 | Oil & Gas Operator | Feb 2026 |
| 3429 | Quality Well Service, Inc. | Pratt, KS 67124 | Oil Operator | Feb 2006 |
| 3430 | Quantum Operating Company | Denver, CO 80201 | Oil & Gas Operator | Dec 2012 |
| 3431 | Quantum Resources Management LLC | Houston, TX 77010 | Oil & Gas Operator | Feb 2026 |
| 3432 | Quest Cherokee LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2026 |
| 3433 | Quest Development Co. | | Oil Operator | Feb 2026 |
| 3434 | Quest Energy LLC | Salina, KS 67401 | Oil Operator | Feb 2026 |
| 3435 | Quest Energy Service Inc. | Chanute, KS 66720 | Oil & Gas Operator | Jan 2009 |
| 3436 | Questa Energy Corporation | Amarillo, TX 79159 | Oil & Gas Operator | Jun 2026 |
| 3437 | Questar Exploration And Production Company Division Of Questar Urc Company | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2026 |
| 3438 | Quinn Oil Produc | | Oil Operator | Dec 1987 |
| 3439 | Quinque Operatin | | Oil & Gas Operator | Jul 1994 |
| 3440 | Quinque Operating Company | Liberal, KS 67905 | Oil & Gas Operator | Feb 2026 |
| 3441 | Quintana Minerals Corporation | Houston, TX 77002 | Oil & Gas Operator | Jan 2003 |
| 3442 | Quintana Petrole | | Oil & Gas Operator | Dec 1995 |
| 3443 | Quintana Petroleum Corporation | Denver, CO 80265 | Oil & Gas Operator | Mar 1998 |
| 3444 | Quito, Inc. | Bartlesville, OK 74003 | Oil & Gas Operator | Oct 2023 |
| 3445 | Quivira Gas Comp | | Gas Operator | Mar 1990 |
| 3446 | Quivira Oil & Ex | | Oil Operator | Sep 1985 |
| 3447 | R & B Oil & Gas | | Oil & Gas Operator | Jul 1995 |
| 3448 | R & B Oil & Gas Inc | Attica, KS 67009 | Oil & Gas Operator | Feb 2026 |
| 3449 | R & D Call | Cedar Vale, KS 67024 | Oil Operator | Oct 2010 |
| 3450 | R & D Oil & Gas | Exeter, CA 93221-9697 | Oil & Gas Operator | Aug 2019 |
| 3451 | R & D Oil LLC | Oklahoma City, OK 73154 | Oil Operator | Dec 2005 |
| 3452 | R & E Oil Co., Inc. | Augusta, KS 67010 | Oil Operator | Dec 2009 |
| 3453 | R & M Oil Co. | Fredonia, KS 66736 | Oil & Gas Operator | Aug 2002 |
| 3454 | R & R Partners | | Oil Operator | Oct 2009 |
| 3455 | R & W Energies - | | Oil Operator | Sep 1995 |
| 3456 | R & W Energies LLC | Eureka, KS 67045 | Oil Operator | Feb 2026 |
| 3457 | R & W Energies-Agency Account | | Oil Operator | Jan 1996 |
| 3458 | R - J Enterprises | Farmington, NM 874990051 | Oil Operator | Mar 2021 |
| 3459 | R C Taylor Operating Company LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Mar 2026 |
| 3460 | R F Oil | | Oil & Gas Operator | Oct 1992 |
| 3461 | R J Operating Company | Albany, TX 76430 | Oil & Gas Operator | Feb 2026 |
| 3462 | R&D Enterprises- | | Oil Operator | Dec 1988 |
| 3463 | R-Jann-N Oil | | Oil Operator | Dec 1999 |
| 3464 | R. B. Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Nov 1996 |
| 3465 | R. D. Energy, Inc. | Sedan, KS 67361 | Oil Operator | Feb 2026 |
| 3466 | R. D. Finnesy Oil | | Oil Operator | Nov 2019 |
| 3467 | R. J. Oil Co. | Olney, TX 76374 | Oil & Gas Operator | May 2025 |
| 3468 | R. P. Nixon Operations, Inc | Hays, KS 67601 | Oil Operator | Feb 2026 |
| 3469 | R.C.Taylor Companies, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2019 |
| 3470 | R.E.French Oil Company, L.L.C. | Gridley, KS 66852 | Oil Operator | Nov 1999 |
| 3471 | R.H.S. Oil Company | | Oil Operator | Nov 2009 |
| 3472 | R.J. Patrick Operating Co. | | Oil & Gas Operator | Jun 2006 |
| 3473 | R.S. Glaze Drilling | | Oil Operator | Jan 1998 |
| 3474 | R.T. Enterprises Of Kansas, Inc. | Louisburg, KS 66053 | Oil Operator | Feb 2026 |
| 3475 | Rader Oil Compan | | Oil Operator | May 1987 |
| 3476 | Rader Oil Company | | Oil Operator | Feb 2026 |
| 3477 | Raelee Oil LLC | Plainville, KS 67663 | Oil Operator | Jul 2021 |
| 3478 | Raida, Junior V. | Neodesha, KS 66757 | Oil Operator | Jul 2013 |
| 3479 | Rains & Williams | | Oil & Gas Operator | Nov 1995 |
| 3480 | Rains & Williamson Oil Co Inc | Wichita, KS 67277 | Oil & Gas Operator | Feb 2026 |
| 3481 | Raker Resources LLC | Houston, TX 77042 | Oil & Gas Operator | Jun 2026 |
| 3482 | Rakestraw Bros., L.L.C | El Dorado, KS 67042 | Oil & Gas Operator | Dec 2019 |
| 3483 | Ram Oil & Gas | Blackwell, OK 74631 | Oil & Gas Operator | May 2013 |
| 3484 | Ram Petroleum Co | | Oil & Gas Operator | Sep 1983 |
| 3485 | Ram Petroleum Corporation | Wichita, KS 67202 | Gas Operator | Feb 2026 |
| 3486 | Ram Service - Mi | | Oil Operator | Sep 1994 |
| 3487 | Rama Operating C | | Oil & Gas Operator | Dec 1996 |
| 3488 | Rama Operating Company Inc | Stafford, KS 67578 | Oil & Gas Operator | Mar 2026 |
| 3489 | Ramco Drilling S | | Oil & Gas Operator | Dec 1992 |
| 3490 | Ramco Energy Corporation | FT. Lauderdale, FL 33312 | Oil & Gas Operator | Dec 2008 |
| 3491 | Ramoil Company | Winfield, KS 67156 | Oil & Gas Operator | May 1987 |
| 3492 | Rampike Resources, LTD | Denver, CO 80202 | Oil Operator | Feb 2026 |
| 3493 | Ramrod Oil Co., A General Partnership | Iola, KS 66749 | Oil Operator | Nov 2001 |
| 3494 | Ramshorn Resources, LLC | Wichita, KS 67202 | Oil & Gas Operator | Feb 2026 |
| 3495 | Randon Production Co. | Marion, KS 66861 | Oil & Gas Operator | Jul 2025 |
| 3496 | Randy J Walker Oil Company | | Oil Operator | Sep 2025 |
| 3497 | Raney Oil Company | Lawrence, KS 66047 | Oil & Gas Operator | May 1999 |
| 3498 | Raney Oil Company, LLC | Lawrence, KS 66049 | Oil & Gas Operator | Feb 2026 |
| 3499 | Range Oil Co., Inc. | Wichita, KS 67278 | Oil & Gas Operator | Jan 2020 |
| 3500 | Range Oil Compan | | Oil & Gas Operator | Nov 1995 |