| 92801 | OIL SECURITIES | Sutter County, CA | Gas Property | Oct 2000 |
| 92802 | OIL SPRINGS | Uintah County, UT | Oil & Gas Property | Jan 2026 |
| 92803 | OILCAN | Bradford County, PA | Gas Property | May 2026 |
| 92804 | OILERS FEDERAL | Eddy County, NM | Oil & Gas Property | Jun 2026 |
| 92805 | OJA 1 | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 92806 | OJAI | Ventura County, CA | Oil & Gas Property | Jun 2026 |
| 92807 | OJAI | Kern County, CA | Oil Property | Mar 2020 |
| 92808 | OJAI | Ventura County, CA | Oil & Gas Property | Jun 2026 |
| 92809 | OJB 15 | Weld County, CO | Oil & Gas Property | May 2026 |
| 92810 | OJO CHISO | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 92811 | OJO ENCINO 21 FEDERAL | McKinley County, NM | Oil Property | Oct 2025 |
| 92812 | OJO H | San Juan County, NM | Gas Property | May 2026 |
| 92813 | OK CORRAL | Tarrant County, TX | Gas Property | May 2026 |
| 92814 | OK LOGGING & TIMBER | Jackson County, WV | Gas Property | Dec 2021 |
| 92815 | OK STATE | Pottawatomie County, OK | Oil Property | Apr 2026 |
| 92816 | OK STATE 18-17-6 | Kingfisher County, OK | Oil & Gas Property | Apr 2026 |
| 92817 | OKAGAWA | Garfield County, CO | Oil & Gas Property | May 2026 |
| 92818 | OKAPI | Brazos County, TX | Oil & Gas Property | May 2026 |
| 92819 | OKAPI STATE UNIT | Reeves County, TX | Oil & Gas Property | May 2026 |
| 92820 | OKARCHE | Pittsburg County, OK | Gas Property | Apr 2026 |
| 92821 | OKARCHE | Canadian County, OK | Oil & Gas Property | Apr 2026 |
| 92822 | OKARCHE | Canadian County, OK | Oil & Gas Property | Apr 2026 |
| 92823 | OKC 1 | Oklahoma County, OK | Oil & Gas Property | Jan 2018 |
| 92824 | OKC 2 | Oklahoma County, OK | Oil & Gas Property | Jan 2018 |
| 92825 | OKC 3 | Oklahoma County, OK | Oil & Gas Property | Mar 2016 |
| 92826 | OKC 4 | Oklahoma County, OK | Oil & Gas Property | Mar 2016 |
| 92827 | OKEEF | Mahoning County, OH | Oil & Gas Property | Dec 2025 |
| 92828 | OKEEFE | Stanton County, KS | Gas Property | Apr 2026 |
| 92829 | OKEEFE | Archer County, TX | Oil & Gas Property | Mar 2020 |
| 92830 | OKEEFE | Caddo Parish, LA | Oil & Gas Property | Dec 2024 |
| 92831 | OKELL | Adams County, MS | Oil & Gas Property | Apr 2026 |
| 92832 | OKELLY | Adams County, MS | Oil Property | Feb 1986 |
| 92833 | OKELLY, OTHELL | Jones County, TX | Oil & Gas Property | May 2026 |
| 92834 | OKESON | Wallace County, KS | Oil & Gas Property | Feb 2026 |
| 92835 | OKFUSKA | Seminole County, OK | Oil Property | Mar 2026 |
| 92836 | OKIE | Major County, OK | Oil & Gas Property | Sep 2023 |
| 92837 | OKIE STATE 33-28-12 1H | Alfalfa County, OK | Oil & Gas Property | Apr 2026 |
| 92838 | OKINAWA 24-11 UNIT | Reeves County, TX | Oil & Gas Property | May 2026 |
| 92839 | OKLAHOMA | Cimarron County, OK | Oil & Gas Property | May 2026 |
| 92840 | OKLAHOMA | Grant County, OK | Oil & Gas Property | May 2026 |
| 92841 | OKLAHOMA | Beaver County, OK | Oil & Gas Property | Aug 2025 |
| 92842 | OKLAHOMA | Major County, OK | Oil & Gas Property | May 2026 |
| 92843 | OKLAHOMA | Texas County, OK | Gas Property | Apr 2026 |
| 92844 | OKLAHOMA 32 FEE | Eddy County, NM | Oil & Gas Property | May 2026 |
| 92845 | OKLAHOMA STATE | Texas County, OK | Oil & Gas Property | Mar 2026 |
| 92846 | OKLAHOMA STATE UNIT J1-34 | Texas County, OK | Oil & Gas Property | Apr 2026 |
| 92847 | OKMULGEE MANNING | Okmulgee County, OK | Oil Property | Jul 2025 |
| 92848 | OKORONKWO | Canadian County, OK | Oil & Gas Property | Apr 2026 |
| 92849 | OKTOBERFEST | San Juan County, NM | Oil & Gas Property | Aug 2025 |
| 92850 | OLA MCCANN | San Patricio County, TX | Oil & Gas Property | May 2026 |
| 92851 | OLAF 42X-11 | Williams County, ND | Oil & Gas Property | May 2026 |
| 92852 | OLAF TUFTE B | Bottineau County, ND | Oil Property | Dec 1997 |
| 92853 | OLAJUWON | Freestone County, TX | Oil & Gas Property | May 2026 |
| 92854 | OLAN | Le Flore County, OK | Gas Property | Apr 2026 |
| 92855 | OLANDER | Rice County, KS | Oil & Gas Property | Apr 2026 |
| 92856 | OLANDER | Weld County, CO | Oil & Gas Property | May 2026 |
| 92857 | OLANDER | Weld County, CO | Oil & Gas Property | May 2018 |
| 92858 | OLANDER CARL | Jones County, TX | Oil & Gas Property | Apr 2026 |
| 92859 | OLAUGHLIN | Hansford County, TX | Oil & Gas Property | May 2026 |
| 92860 | OLAUGHLIN | Palo Pinto County, TX | Oil & Gas Property | May 2026 |
| 92861 | OLAUGHLIN 1 | Kearny County, KS | Gas Property | Apr 2026 |
| 92862 | OLBERDING | Nemaha County, KS | Oil Property | Apr 2026 |
| 92863 | OLCESE | Kern County, CA | Oil & Gas Property | Jun 2026 |
| 92864 | OLCESE ESTATE | Kern County, CA | Oil Property | Jun 2026 |
| 92865 | OLCOTT | Tarrant County, TX | Oil & Gas Property | May 2026 |
| 92866 | OLCOTT D | Ward County, TX | Oil & Gas Property | Dec 2023 |
| 92867 | OLCOTT H. W | Gray County, TX | Gas Property | May 2026 |
| 92868 | OLCOTT NORTH A UNIT | Tarrant County, TX | Oil & Gas Property | Feb 2026 |
| 92869 | OLCZAK | Greene County, PA | Gas Property | May 2026 |
| 92870 | OLD ARCHES 14-35MBH ULW | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 92871 | OLD BEAR USA 11-17H | Mountrail County, ND | Oil & Gas Property | Apr 2026 |
| 92872 | OLD BEAR WOMAN BIA | Blaine County, OK | Oil & Gas Property | Apr 2026 |
| 92873 | OLD BLUE 25 | Upton County, TX | Oil & Gas Property | May 2026 |
| 92874 | OLD BORDER | Toole County, MT | Oil Property | Feb 2026 |
| 92875 | OLD BRASS & NEEDLE | Montague County, TX | Oil & Gas Property | Dec 2021 |
| 92876 | OLD CRAB 1506 | Kingfisher County, OK | Oil & Gas Property | Apr 2026 |
| 92877 | OLD EDDY | Washington County, OH | Oil Property | Dec 2024 |
| 92878 | OLD FAITHFUL | Woods County, OK | Oil & Gas Property | Nov 2015 |
| 92879 | OLD FASHIONED 96-11 | Martin County, TX | Oil & Gas Property | May 2026 |
| 92880 | OLD GLORY 16/28 AP | Ellis County, OK | Oil & Gas Property | Apr 2026 |
| 92881 | OLD GLORY 5-8-10 | Caddo County, OK | Oil & Gas Property | Apr 2026 |
| 92882 | OLD GLORY HOLE | Natrona County, WY | Oil Property | Oct 2018 |
| 92883 | OLD HICKORY | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 92884 | OLD HICKORY STATE | Reeves County, TX | Oil & Gas Property | May 2026 |
| 92885 | OLD HOME MANOR | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 92886 | OLD INDIAN DRAW UNIT | Eddy County, NM | Oil & Gas Property | May 2026 |
| 92887 | OLD IRONSIDE 0405 | Pecos County, TX | Oil & Gas Property | Apr 2026 |
| 92888 | OLD LOCO UNIT | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 92889 | OLD MCDONALD FARM UNIT | Washington County, PA | Gas Property | May 2026 |
| 92890 | OLD MONARCH STATE 12 | Reeves County, TX | Oil & Gas Property | May 2026 |
| 92891 | OLD OAK FARM 6-10-3 | Jefferson County, OH | Gas Property | Mar 2026 |
| 92892 | OLD OCEAN UNIT | Brazoria County, TX | Oil & Gas Property | May 2026 |
| 92893 | OLD OCEAN UNIT | Brazoria County, TX | Oil & Gas Property | Nov 1993 |
| 92894 | OLD PARTNER | Loving County, TX | Oil & Gas Property | May 2026 |
| 92895 | OLD PARTNER 54-1-30 | Loving County, TX | Oil & Gas Property | May 2026 |
| 92896 | OLD RANCH CANYON 7 FEDERAL | Eddy County, NM | Oil & Gas Property | May 2019 |
| 92897 | OLD RANCH KNOLL 8 FEDERAL | Eddy County, NM | Oil & Gas Property | Feb 2015 |
| 92898 | OLD RICKYS RIDGE 31_30-14N-7W | Canadian County, OK | Oil & Gas Property | Apr 2026 |
| 92899 | OLD RIVER RANCH DIM | Dimmit County, TX | Oil & Gas Property | May 2026 |
| 92900 | OLD ROCK COM | Rio Arriba County, NM | Oil & Gas Property | May 2026 |