| 91801 | O. V. RAY | Haskell County, KS | Gas Property | Dec 2024 |
| 91802 | O.A. LAMPLEY G | Lavaca County, TX | Oil & Gas Property | Jan 2025 |
| 91803 | O.B. BESS | Grimes County, TX | Oil & Gas Property | Sep 2001 |
| 91804 | O.B. RANCH | Wharton County, TX | Oil & Gas Property | Sep 2017 |
| 91805 | O.B.T.C | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 91806 | O.F.BARNES U | Grant County, KS | Gas Property | Dec 2024 |
| 91807 | O.G. ROGERS ESTATE | Anderson County, TX | Oil & Gas Property | Jan 2025 |
| 91808 | O.H.SHOWS | Jones County, MS | Oil Property | Jan 2025 |
| 91809 | O.L.WILSON | Adams County, MS | Oil & Gas Property | Jan 2025 |
| 91810 | O.P. RATLIFF | Vinton County, OH | Oil & Gas Property | Dec 2023 |
| 91811 | O.S. PIPER 62 | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 91812 | O.T. (ALLOCATION) | Brazos County, TX | Oil & Gas Property | Dec 2024 |
| 91813 | O.W. ALEXANDER | Panola County, TX | Oil & Gas Property | Jan 2025 |
| 91814 | OA AO285 | Terrebonne Parish, LA | Oil & Gas Property | Feb 2019 |
| 91815 | OAK 1 | Kingman County, KS | Gas Property | Jun 2024 |
| 91816 | OAK 148-94 12C-01-1H | Dunn County, ND | Oil & Gas Property | Feb 2025 |
| 91817 | OAK 15 | Glasscock County, TX | Oil & Gas Property | Jan 2025 |
| 91818 | OAK 1819 | Campbell County, WY | Oil & Gas Property | Feb 2025 |
| 91819 | OAK 55-1-30 UNIT 1H | Loving County, TX | Oil & Gas Property | Jan 2025 |
| 91820 | OAK 55-1-31-30 | Loving County, TX | Oil & Gas Property | Feb 2025 |
| 91821 | OAK C | Kingman County, KS | Gas Property | Dec 2024 |
| 91822 | OAK FLAT | Ventura County, CA | Oil & Gas Property | Dec 2024 |
| 91823 | OAK FLAT | Fresno County, CA | Oil Property | Jan 1997 |
| 91824 | OAK GROVE | Jefferson County, AL | Gas Property | Jan 2004 |
| 91825 | OAK GROVE | Ventura County, CA | Oil & Gas Property | Dec 2024 |
| 91826 | OAK GROVE UNIT | Tarrant County, TX | Gas Property | Jan 2025 |
| 91827 | OAK HILL | Cattaraugus County, NY | Oil & Gas Property | Dec 2023 |
| 91828 | OAK HILL GAS UNIT | Rusk County, TX | Oil & Gas Property | Jan 2025 |
| 91829 | OAK ISLAND A | Bexar County, TX | Oil & Gas Property | Jan 2025 |
| 91830 | OAK PARK | Ventura County, CA | Oil & Gas Property | Dec 2024 |
| 91831 | OAK RIDGE N | Susquehanna County, PA | Gas Property | Feb 2025 |
| 91832 | OAK STATE UNIT | Reeves County, TX | Gas Property | Jan 2025 |
| 91833 | OAK TREE | Kingfisher County, OK | Oil & Gas Property | Jan 2025 |
| 91834 | OAK TREE FAIRWAY UNIT | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 91835 | OAK VALLEY | Johnson County, TX | Gas Property | Jan 2025 |
| 91836 | OAK VALLEY 2 | Dawson County, TX | Oil & Gas Property | Jan 2025 |
| 91837 | OAKASON NV FEDERAL | Eddy County, NM | Oil & Gas Property | Jun 2022 |
| 91838 | OAKDALE | Dunn County, ND | Oil & Gas Property | Feb 2025 |
| 91839 | OAKDALE 11-12H | Dunn County, ND | Oil & Gas Property | Feb 2025 |
| 91840 | OAKES | Dewey County, OK | Oil & Gas Property | Feb 2025 |
| 91841 | OAKES | Dewey County, OK | Oil & Gas Property | Jan 2025 |
| 91842 | OAKES | Woodson County, KS | Oil Property | May 2012 |
| 91843 | OAKES | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 91844 | OAKES | McKean County, PA | Oil Property | Dec 2007 |
| 91845 | OAKES | Barber County, KS | Oil & Gas Property | Dec 2024 |
| 91846 | OAKES | Woodson County, KS | Oil Property | Dec 2024 |
| 91847 | OAKES | Love County, OK | Oil & Gas Property | Jan 2025 |
| 91848 | OAKES 1 | Caddo County, OK | Oil & Gas Property | Jan 2025 |
| 91849 | OAKES 25 | Texas County, OK | Oil & Gas Property | Jan 2025 |
| 91850 | OAKES C.W. ESTATE | Limestone County, TX | Oil & Gas Property | Jan 2025 |
| 91851 | OAKES G B | Chautauqua County, KS | Oil Property | Nov 2024 |
| 91852 | OAKES PAT GAS UNIT | Limestone County, TX | Oil & Gas Property | Jan 2025 |
| 91853 | OAKES T.C. ESTATE GAS UNIT | Freestone County, TX | Oil & Gas Property | Jan 2025 |
| 91854 | OAKES, OLLIE | Metcalfe County, KY | Oil Property | Nov 2004 |
| 91855 | OAKES-TURNER GAS UNIT NO. 1 | Freestone County, TX | Oil & Gas Property | Jan 2025 |
| 91856 | OAKHURST F | Montgomery County, KS | Gas Property | Oct 2024 |
| 91857 | OAKLAND | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 91858 | OAKLAND | Mountrail County, ND | Oil & Gas Property | Feb 2025 |
| 91859 | OAKLAND | Adams County, MS | Oil Property | Jan 1997 |
| 91860 | OAKLAND | Kern County, CA | Oil & Gas Property | Dec 2024 |
| 91861 | OAKLAND 151-103-29B-32-1H | McKenzie County, ND | Oil & Gas Property | Feb 2025 |
| 91862 | OAKLAND CEMET | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 91863 | OAKLAND CORP | Cass County, TX | Oil & Gas Property | Nov 2022 |
| 91864 | OAKLAND CORP WATERFLOOD UNIT | Cass County, TX | Oil & Gas Property | Oct 2024 |
| 91865 | OAKLAND FEDERAL 1 | McKenzie County, ND | Oil & Gas Property | Feb 2025 |
| 91866 | OAKLEAF, LINN | Labette County, KS | Gas Property | Dec 2024 |
| 91867 | OAKLEY | Hopkins County, KY | Oil Property | Feb 2022 |
| 91868 | OAKLEY | Dewey County, OK | Oil & Gas Property | Jan 2025 |
| 91869 | OAKLEY FED | Converse County, WY | Oil & Gas Property | Feb 2025 |
| 91870 | OAKLIEF-SHARROCK | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 91871 | OAKMAN | Love County, OK | Oil & Gas Property | Nov 2016 |
| 91872 | OAKMONT | Dawson County, TX | Oil & Gas Property | Jan 2025 |
| 91873 | OAKMONT 11 10 STATE COM | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 91874 | OAKMONT 1505 | Kingfisher County, OK | Oil & Gas Property | Jan 2025 |
| 91875 | OAKMONT 1H | Tarrant County, TX | Gas Property | Jan 2025 |
| 91876 | OAKMONT COUNT | Allegheny County, PA | Gas Property | Dec 2024 |
| 91877 | OAKMONT EAST | Allegheny County, PA | Gas Property | Dec 2024 |
| 91878 | OAKRIDGE | Ventura County, CA | Oil & Gas Property | Dec 2024 |
| 91879 | OAKRIDGE | Chautauqua County, KS | Oil & Gas Property | Jun 2015 |
| 91880 | OAKS | Custer County, OK | Oil & Gas Property | Jan 2025 |
| 91881 | OAKS | Johnson County, TX | Oil & Gas Property | Jan 2025 |
| 91882 | OAKS | Martin County, TX | Oil & Gas Property | Jan 2025 |
| 91883 | OAKS 1-4H | Grady County, OK | Oil & Gas Property | Jan 2025 |
| 91884 | OAKS STATE | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 91885 | OAKSON A FEDERAL | Chaves County, NM | Oil Property | Oct 2001 |
| 91886 | OAKSON B FEDERAL | Chaves County, NM | Oil & Gas Property | Nov 2009 |
| 91887 | OAKWOOD | Los Angeles County, CA | Oil & Gas Property | Mar 2001 |
| 91888 | OAKWOOD | Tarrant County, TX | Gas Property | Jan 2025 |
| 91889 | OAKWOOD CLUB | Cuyahoga County, OH | Oil & Gas Property | Dec 2015 |
| 91890 | OAKWOOD REALTY | Jefferson County, TX | Oil & Gas Property | Oct 2024 |
| 91891 | OARD | Kay County, OK | Oil & Gas Property | Jan 2021 |
| 91892 | OARE A | Alfalfa County, OK | Oil & Gas Property | Feb 2014 |
| 91893 | OASIS | Comanche County, KS | Oil & Gas Property | Dec 2024 |
| 91894 | OASIS 9-16-33-40 | Mitchell County, TX | Oil & Gas Property | Jan 2025 |
| 91895 | OASIS MEIERS 5692 | Mountrail County, ND | Oil & Gas Property | Feb 2025 |
| 91896 | OASIS UNIT | Karnes County, TX | Oil & Gas Property | Jan 2025 |
| 91897 | OAT MOUNTAIN | Los Angeles County, CA | Oil & Gas Property | Dec 2024 |
| 91898 | OATES | Limestone County, TX | Oil & Gas Property | Jan 2025 |
| 91899 | OATES | Hutchinson County, TX | Oil & Gas Property | Jun 2022 |
| 91900 | OATES | Wise County, TX | Oil & Gas Property | Jan 2025 |