| 1601 | OSCAR EARL HOUSER | Armstrong County, PA | Gas Property | Dec 2025 |
| 1602 | OSCAR FLICK 1-26H | Roger Mills County, OK | Oil & Gas Property | May 2026 |
| 1603 | OSCAR FOSSUM | Bottineau County, ND | Oil & Gas Property | May 2026 |
| 1604 | OSCAR J DRESSLER | Clearfield County, PA | Gas Property | Dec 2025 |
| 1605 | OSCAR KROENKE | Crawford County, KS | Oil Property | Dec 2018 |
| 1606 | OSCAR LU | McIntosh County, OK | Oil & Gas Property | Apr 2026 |
| 1607 | OSCAR MILLER | Stafford County, KS | Oil Property | Oct 2005 |
| 1608 | OSCAR STOHLER 41-4H | Dunn County, ND | Oil & Gas Property | May 2026 |
| 1609 | OSCAR THORSON USA 41-8TFH-2B | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1610 | OSCAR Y1 | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 1611 | OSCEOLA MCELROY HEIRS (AW) | Harrison County, TX | Oil & Gas Property | May 2026 |
| 1612 | OSCEOLA-ELDRIDGE BIVINS (AW) 1H | Harrison County, TX | Oil & Gas Property | May 2026 |
| 1613 | OSCU II 1 | Uintah County, UT | Oil & Gas Property | Apr 2026 |
| 1614 | OSD 0 | Los Angeles County, CA | Oil & Gas Property | Jun 2026 |
| 1615 | OSF 0 | Los Angeles County, CA | Oil & Gas Property | Jun 2026 |
| 1616 | OSG 0 | Los Angeles County, CA | Oil & Gas Property | Jun 2026 |
| 1617 | OSH D 2 | Weld County, CO | Oil & Gas Property | Jun 2018 |
| 1618 | OSHEA | San Juan County, NM | Oil & Gas Property | May 2020 |
| 1619 | OSIE | Pittsburg County, OK | Gas Property | Sep 2022 |
| 1620 | OSIKA | Jack County, TX | Oil & Gas Property | Jun 2013 |
| 1621 | OSINA | Fayette County, TX | Oil & Gas Property | May 2026 |
| 1622 | OSIRIS 7-1-62 | Mitchell County, TX | Oil & Gas Property | May 2026 |
| 1623 | OSJ 00 | Los Angeles County, CA | Oil & Gas Property | Jun 2026 |
| 1624 | OSKARSON | Weld County, CO | Oil & Gas Property | Jun 2024 |
| 1625 | OSKING USA 14-12H | Dunn County, ND | Oil & Gas Property | May 2026 |
| 1626 | OSLER | Tarrant County, TX | Gas Property | May 2026 |
| 1627 | OSLER (1 | Liberty County, MT | Gas Property | May 2026 |
| 1628 | OSLEY | Fayette County, PA | Gas Property | Dec 2025 |
| 1629 | OSM 0 | Los Angeles County, CA | Oil & Gas Property | Jun 2026 |
| 1630 | OSMAN | Stevens County, KS | Gas Property | Mar 2026 |
| 1631 | OSMENT | Tuscaloosa County, AL | Gas Property | May 2026 |
| 1632 | OSMIUM 147-93-17B-20H | Dunn County, ND | Oil & Gas Property | May 2026 |
| 1633 | OSMOND | Kiowa County, OK | Gas Property | Mar 2008 |
| 1634 | OSMOND 1-3H | Williams County, ND | Oil & Gas Property | May 2026 |
| 1635 | OSMOND-M | Uintah County, UT | Oil & Gas Property | May 2026 |
| 1636 | OSMUS | Blaine County, OK | Oil & Gas Property | Apr 2026 |
| 1637 | OSMUS | Yuma County, CO | Gas Property | May 2026 |
| 1638 | OSMUS 22&15-20-10 | Major County, OK | Oil & Gas Property | Apr 2026 |
| 1639 | OSO CANYON | Rio Arriba County, NM | Oil & Gas Property | Oct 2000 |
| 1640 | OSPREY | Jim Hogg County, TX | Oil & Gas Property | Nov 2023 |
| 1641 | OSPREY | Tarrant County, TX | Gas Property | May 2026 |
| 1642 | OSPREY 1-10-15XH | Custer County, OK | Oil & Gas Property | May 2026 |
| 1643 | OSPREY 10 | Lea County, NM | Oil & Gas Property | May 2026 |
| 1644 | OSPREY 20 STATE COM | Lea County, NM | Oil & Gas Property | May 2026 |
| 1645 | OSPREY 5401 | Williams County, ND | Oil & Gas Property | May 2026 |
| 1646 | OSPREY FEDERAL | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1647 | OSPREY STATE UNIT | Loving County, TX | Oil & Gas Property | May 2026 |
| 1648 | OSPREY STATE WEST UNIT | Pecos County, TX | Oil & Gas Property | May 2026 |
| 1649 | OSPREY UNIT | Atascosa County, TX | Oil & Gas Property | May 2026 |
| 1650 | OSR-HALLIDAY | Madison County, TX | Oil & Gas Property | Apr 2026 |
| 1651 | OSR/KIRBY | Reagan County, TX | Oil & Gas Property | Aug 2025 |
| 1652 | OSSESIA | Clarion County, PA | Gas Property | Dec 2025 |
| 1653 | OSSESSIA | Clarion County, PA | Gas Property | Dec 2025 |
| 1654 | OSSMAN | Chautauqua County, NY | Gas Property | Dec 2025 |
| 1655 | OST 0 | Los Angeles County, CA | Oil & Gas Property | Jun 2026 |
| 1656 | OST ESTATE | Weston County, WY | Oil Property | Jun 1995 |
| 1657 | OSTBY | Sheridan County, MT | Oil & Gas Property | May 2026 |
| 1658 | OSTEEN W. N | Caldwell County, TX | Oil & Gas Property | Dec 2025 |
| 1659 | OSTER | Weld County, CO | Oil & Gas Property | Sep 2022 |
| 1660 | OSTER | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 1661 | OSTER | Weld County, CO | Oil & Gas Property | Feb 2016 |
| 1662 | OSTER SAND & GRAVEL | Stark County, OH | Oil & Gas Property | Dec 2025 |
| 1663 | OSTERBERG | Renville County, ND | Oil Property | Dec 2012 |
| 1664 | OSTGREN | Kimball County, NE | Oil Property | Dec 2025 |
| 1665 | OSTLAND | Park County, WY | Oil & Gas Property | May 2026 |
| 1666 | OSTLER 7-20C4 | Duchesne County, UT | Oil & Gas Property | May 2026 |
| 1667 | OSTLUND | McPherson County, KS | Oil Property | Feb 2026 |
| 1668 | OSTLUND | Campbell County, WY | Oil & Gas Property | Aug 2011 |
| 1669 | OSTLUND 11-14 | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1670 | OSTLUND-PATENTED | Campbell County, WY | Oil & Gas Property | Sep 1992 |
| 1671 | OSTMEYER | Thomas County, KS | Oil Property | Mar 2026 |
| 1672 | OSTRANDER | Irion County, TX | Oil & Gas Property | May 2026 |
| 1673 | OSTRANDER | Cumberland County, KY | Oil Property | Dec 2011 |
| 1674 | OSTRANDER | Tioga County, PA | Gas Property | May 2026 |
| 1675 | OSTRICH | Greene County, PA | Gas Property | May 2026 |
| 1676 | OSTRICH UNIT | Atascosa County, TX | Oil & Gas Property | May 2026 |
| 1677 | OSUDO 9 STATE | Lea County, NM | Oil & Gas Property | May 2026 |
| 1678 | OSUDO STATE COM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 1679 | OSULLIVAN | Stafford County, KS | Oil & Gas Property | Mar 2026 |
| 1680 | OSW 0 | Los Angeles County, CA | Oil & Gas Property | Jun 2026 |
| 1681 | OSWALD | Texas County, OK | Oil & Gas Property | Oct 2016 |
| 1682 | OSWALD | McDowell County, WV | Gas Property | Dec 2021 |
| 1683 | OSWALD | Ellis County, KS | Oil Property | Mar 2026 |
| 1684 | OSWALD | Rooks County, KS | Oil Property | Mar 2026 |
| 1685 | OSWALD | Conway County, AR | Gas Property | Jul 2024 |
| 1686 | OSWALD | Kingfisher County, OK | Oil & Gas Property | Apr 2026 |
| 1687 | OSWALD 1-12 | Caddo County, OK | Oil & Gas Property | Apr 2026 |
| 1688 | OSWALD, ED | Russell County, KS | Oil Property | Mar 2026 |
| 1689 | OSWALD-WILCOX | Russell County, KS | Oil Property | Mar 2026 |
| 1690 | OSWALT | Payne County, OK | Oil & Gas Property | May 2026 |
| 1691 | OSWAYO CHEMICAL | Potter County, PA | Gas Property | Dec 2025 |
| 1692 | OSWELL FEDERAL | San Juan County, NM | Oil & Gas Property | May 2026 |
| 1693 | OSWOOD | Liberty County, MT | Gas Property | May 2026 |
| 1694 | OSWOOD | Liberty County, MT | Gas Property | May 2026 |
| 1695 | OTAY | Stephens County, OK | Oil & Gas Property | May 2026 |
| 1696 | OTB BLAGRAVE 1 | Martin County, TX | Oil & Gas Property | May 2026 |
| 1697 | OTB JOHNSON F | Martin County, TX | Oil & Gas Property | May 2026 |
| 1698 | OTB OBRIEN 43 | Martin County, TX | Oil & Gas Property | May 2026 |
| 1699 | OTE CREEK UNIT | Sublette County, WY | Oil & Gas Property | Feb 1992 |
| 1700 | OTEN WILL | Rusk County, TX | Oil & Gas Property | May 2026 |