| 66401 | KAMMERDIENER | Armstrong County, PA | Gas Property | Dec 2025 |
| 66402 | KAMMERER | Wilson County, KS | Oil & Gas Property | May 2026 |
| 66403 | KAMMERZELL | Weld County, CO | Oil & Gas Property | Oct 2019 |
| 66404 | KAMMERZELL | Weld County, CO | Oil & Gas Property | May 2026 |
| 66405 | KAMP | Beaver County, OK | Oil & Gas Property | Jun 2026 |
| 66406 | KAMPERMAN | Hughes County, OK | Gas Property | Jul 2026 |
| 66407 | KAMPF | Ashtabula County, OH | Oil & Gas Property | Dec 2019 |
| 66408 | KAMPHAUS | Washita County, OK | Oil & Gas Property | Sep 2012 |
| 66409 | KAN & HOCKING COAL | Kanawha County, WV | Gas Property | Dec 2021 |
| 66410 | KAN GAULEY COAL & COKE | Fayette County, WV | Oil & Gas Property | Dec 2021 |
| 66411 | KAN. & HOCKING CO | Kanawha County, WV | Gas Property | Dec 2021 |
| 66412 | KANADA | Los Angeles County, CA | Oil & Gas Property | Dec 1990 |
| 66413 | KANADY | Butler County, KS | Oil Property | May 2026 |
| 66414 | KANAWHA | Fayette County, WV | Gas Property | Dec 2021 |
| 66415 | KANAWHA BANK | Kanawha County, WV | Gas Property | Dec 2021 |
| 66416 | KANAWHA CITY | Kanawha County, WV | Gas Property | Dec 2021 |
| 66417 | KANAWHA CO | Roane County, WV | Oil & Gas Property | Dec 2021 |
| 66418 | KANAWHA EAGLE COAL | Kanawha County, WV | Oil & Gas Property | Dec 2021 |
| 66419 | KANAWHA GAULEY | Fayette County, WV | Oil & Gas Property | Dec 2021 |
| 66420 | KANAWHA HOCKING | Kanawha County, WV | Oil & Gas Property | Dec 2021 |
| 66421 | KANAWHA SERVICES CORP. PEABODY | Fayette County, WV | Gas Property | Dec 2021 |
| 66422 | KANAWHA UNION BANK | Gilmer County, WV | Oil & Gas Property | Dec 2021 |
| 66423 | KANCEL UNIT | Washington County, PA | Gas Property | Jun 2026 |
| 66424 | KANDI SUE | Noble County, OK | Oil & Gas Property | Oct 2012 |
| 66425 | KANDIYOHI | Burke County, ND | Oil & Gas Property | Jun 2026 |
| 66426 | KANDIYOHI | Burke County, ND | Oil & Gas Property | Jun 2026 |
| 66427 | KANDIYOHI 159-90 | Burke County, ND | Oil & Gas Property | Jun 2026 |
| 66428 | KANE | Seward County, KS | Gas Property | Mar 2026 |
| 66429 | KANE | Blaine County, MT | Gas Property | Jun 2026 |
| 66430 | KANE | Campbell County, WY | Oil Property | Sep 2017 |
| 66431 | KANE | Anderson County, KS | Oil Property | Feb 2017 |
| 66432 | KANE | Chouteau County, MT | Gas Property | Jun 2026 |
| 66433 | KANE | Washington County, OK | Oil Property | Jun 2026 |
| 66434 | KANE | Kiowa County, KS | Oil & Gas Property | May 2026 |
| 66435 | KANE | Le Flore County, OK | Gas Property | Jun 2026 |
| 66436 | KANE | Washington County, OK | Oil Property | Jun 2026 |
| 66437 | KANE | Kiowa County, KS | Oil & Gas Property | Jun 2021 |
| 66438 | KANE | Coal County, OK | Oil & Gas Property | Jun 2026 |
| 66439 | KANE | Moore County, TX | Gas Property | Apr 2026 |
| 66440 | KANE 1 | Blaine County, MT | Gas Property | Jun 2026 |
| 66441 | KANE 13-20 4-3-29-32 | Duchesne County, UT | Oil & Gas Property | Jun 2026 |
| 66442 | KANE ESTATE | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 66443 | KANE OIL | McKean County, PA | Oil Property | Dec 1994 |
| 66444 | KANE SPRINGS | Grand County, UT | Oil & Gas Property | Jun 2026 |
| 66445 | KANE TRUST | Kiowa County, KS | Oil & Gas Property | Jan 2026 |
| 66446 | KANE WILLIAM 11942 | Butler County, PA | Gas Property | Jun 2026 |
| 66447 | KANE, THOMAS | Barbour County, WV | Oil & Gas Property | Dec 2021 |
| 66448 | KANE-BLOEMER | Kern County, CA | Oil & Gas Property | Jul 2012 |
| 66449 | KANEB-UNIVERSITY 5 | Reagan County, TX | Oil & Gas Property | Jun 2026 |
| 66450 | KANGA GAS UNIT 2H | San Augustine County, TX | Gas Property | Jun 2026 |
| 66451 | KANGA STATE D 36 | Weld County, CO | Oil & Gas Property | May 2021 |
| 66452 | KANGAROO | Panola County, TX | Oil & Gas Property | Jun 2026 |
| 66453 | KANGAROO 12 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Jul 2026 |
| 66454 | KANGERGA | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 66455 | KANGERGA | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 66456 | KANGERGA | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 66457 | KANGERGA | Rusk County, TX | Oil & Gas Property | Jul 2011 |
| 66458 | KANGERGA | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 66459 | KANGERGA | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 66460 | KANGERGA | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 66461 | KANGERGA 1-ALFORD RO (AW) 1H | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 66462 | KANGERGA A GAS UNIT 11H | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 66463 | KANGERGA ET AL | Gregg County, TX | Oil & Gas Property | Jun 2026 |
| 66464 | KANGERGA GAS UNIT | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 66465 | KANGERGA MICHAEL | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 66466 | KANKEY | Madison County, TX | Oil & Gas Property | May 2026 |
| 66467 | KANNEGIETER 160-90-17 P-1H | Burke County, ND | Oil & Gas Property | Jun 2026 |
| 66468 | KANNIANEN | Mountrail County, ND | Oil & Gas Property | Jun 2026 |
| 66469 | KANNIANEN FEDERAL 11-4TFHU | Mountrail County, ND | Oil & Gas Property | Jun 2026 |
| 66470 | KANNING | Toole County, MT | Oil & Gas Property | Jun 2026 |
| 66471 | KANO | Creek County, OK | Oil & Gas Property | Apr 2026 |
| 66472 | KANON | Canadian County, OK | Oil & Gas Property | Jun 2026 |
| 66473 | KANSAS | Morton County, KS | Gas Property | Mar 2026 |
| 66474 | KANSAS | Morton County, KS | Gas Property | Mar 2026 |
| 66475 | KANSAS | Finney County, KS | Gas Property | May 2026 |
| 66476 | KANSAS 1178 | Neosho County, KS | Gas Property | May 2026 |
| 66477 | KANSAS 21 28 W | Eddy County, NM | Oil & Gas Property | Jun 2026 |
| 66478 | KANSAS 28 33 W | Eddy County, NM | Oil & Gas Property | Jun 2026 |
| 66479 | KANSAS B | Finney County, KS | Gas Property | May 2026 |
| 66480 | KANSAS CITY L | Seward County, KS | Oil & Gas Property | May 2026 |
| 66481 | KANSAS REGENTS 2-15 | Morton County, KS | Gas Property | Mar 2026 |
| 66482 | KANSAS STATE | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 66483 | KANSAS STATE GAS UNIT | Finney County, KS | Gas Property | May 2026 |
| 66484 | KANSAS UNIVERSITY | Seward County, KS | Gas Property | May 2026 |
| 66485 | KANSAS UNIVERSITY | Morton County, KS | Oil & Gas Property | Mar 2026 |
| 66486 | KANSAS UNIVERSITY | Morton County, KS | Oil & Gas Property | May 2026 |
| 66487 | KANSAS UNIVERSITY | Stevens County, KS | Gas Property | May 2026 |
| 66488 | KANSAS UNIVERSITY 2-32 | Comanche County, KS | Oil & Gas Property | May 2026 |
| 66489 | KANSAS UNIVERSITY GAS UNIT 'B' | Morton County, KS | Gas Property | May 2026 |
| 66490 | KANSAS-SCOTT | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 66491 | KANSU RED | Atascosa County, TX | Oil & Gas Property | Jun 2026 |
| 66492 | KANTOR | Creek County, OK | Oil & Gas Property | Jun 2026 |
| 66493 | KANUCKLE W | Coshocton County, OH | Oil Property | Dec 1996 |
| 66494 | KANYER | Williams County, ND | Oil & Gas Property | Jun 2026 |
| 66495 | KANYER FEDERAL 11X-15 | Williams County, ND | Oil & Gas Property | Jun 2026 |
| 66496 | KANZELMEYER | Phillips County, KS | Oil Property | May 2026 |
| 66497 | KAPAVIK UNIT | Gonzales County, TX | Oil & Gas Property | Jun 2026 |
| 66498 | KAPEG | Kern County, CA | Oil Property | Jul 2026 |
| 66499 | KAPLAN | Canadian County, OK | Oil & Gas Property | Jun 2026 |
| 66500 | KAPLAN | Carroll County, OH | Oil & Gas Property | Dec 2025 |