| 91901 | O. M. AKERS UNIT | Kearny County, KS | Gas Property | Dec 2024 |
| 91902 | O. O. FULLER | Ellsworth County, KS | Oil Property | Dec 2024 |
| 91903 | O. P. DAVIS B | Colusa County, CA | Gas Property | Dec 2024 |
| 91904 | O. P. WILLIAMS | Grant County, KS | Gas Property | Dec 2024 |
| 91905 | O. R. WITHAM | Chautauqua County, KS | Oil Property | Nov 2024 |
| 91906 | O. S. RANCH A | Garza County, TX | Oil & Gas Property | Jan 2025 |
| 91907 | O. T. GILBERT | Stevens County, KS | Gas Property | Dec 2024 |
| 91908 | O. T. LONG | Noble County, OK | Oil & Gas Property | Jan 2025 |
| 91909 | O. V. RAY | Haskell County, KS | Gas Property | Dec 2024 |
| 91910 | O.A. LAMPLEY G | Lavaca County, TX | Oil & Gas Property | Jan 2025 |
| 91911 | O.B. BESS | Grimes County, TX | Oil & Gas Property | Sep 2001 |
| 91912 | O.B. RANCH | Wharton County, TX | Oil & Gas Property | Sep 2017 |
| 91913 | O.B.T.C | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 91914 | O.F.BARNES U | Grant County, KS | Gas Property | Dec 2024 |
| 91915 | O.G. ROGERS ESTATE | Anderson County, TX | Oil & Gas Property | Jan 2025 |
| 91916 | O.H.SHOWS | Jones County, MS | Oil Property | Jan 2025 |
| 91917 | O.L.WILSON | Adams County, MS | Oil & Gas Property | Jan 2025 |
| 91918 | O.P. RATLIFF | Vinton County, OH | Oil & Gas Property | Dec 2023 |
| 91919 | O.S. PIPER 62 | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 91920 | O.T. (ALLOCATION) | Brazos County, TX | Oil & Gas Property | Dec 2024 |
| 91921 | O.W. ALEXANDER | Panola County, TX | Oil & Gas Property | Jan 2025 |
| 91922 | OA AO285 | Terrebonne Parish, LA | Oil & Gas Property | Feb 2019 |
| 91923 | OAK 1 | Kingman County, KS | Gas Property | Jun 2024 |
| 91924 | OAK 148-94 12C-01-1H | Dunn County, ND | Oil & Gas Property | Feb 2025 |
| 91925 | OAK 15 | Glasscock County, TX | Oil & Gas Property | Jan 2025 |
| 91926 | OAK 1819 | Campbell County, WY | Oil & Gas Property | Feb 2025 |
| 91927 | OAK 55-1-30 UNIT 1H | Loving County, TX | Oil & Gas Property | Jan 2025 |
| 91928 | OAK 55-1-31-30 | Loving County, TX | Oil & Gas Property | Feb 2025 |
| 91929 | OAK C | Kingman County, KS | Gas Property | Dec 2024 |
| 91930 | OAK FLAT | Ventura County, CA | Oil & Gas Property | Dec 2024 |
| 91931 | OAK FLAT | Fresno County, CA | Oil Property | Jan 1997 |
| 91932 | OAK GROVE | Jefferson County, AL | Gas Property | Jan 2004 |
| 91933 | OAK GROVE | Ventura County, CA | Oil & Gas Property | Dec 2024 |
| 91934 | OAK GROVE UNIT | Tarrant County, TX | Gas Property | Jan 2025 |
| 91935 | OAK HILL | Cattaraugus County, NY | Oil & Gas Property | Dec 2023 |
| 91936 | OAK HILL GAS UNIT | Rusk County, TX | Oil & Gas Property | Jan 2025 |
| 91937 | OAK ISLAND A | Bexar County, TX | Oil & Gas Property | Jan 2025 |
| 91938 | OAK PARK | Ventura County, CA | Oil & Gas Property | Dec 2024 |
| 91939 | OAK RIDGE N | Susquehanna County, PA | Gas Property | Feb 2025 |
| 91940 | OAK STATE UNIT | Reeves County, TX | Gas Property | Jan 2025 |
| 91941 | OAK TREE | Kingfisher County, OK | Oil & Gas Property | Jan 2025 |
| 91942 | OAK TREE FAIRWAY UNIT | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 91943 | OAK VALLEY | Johnson County, TX | Gas Property | Jan 2025 |
| 91944 | OAK VALLEY 2 | Dawson County, TX | Oil & Gas Property | Jan 2025 |
| 91945 | OAKASON NV FEDERAL | Eddy County, NM | Oil & Gas Property | Jun 2022 |
| 91946 | OAKDALE | Dunn County, ND | Oil & Gas Property | Feb 2025 |
| 91947 | OAKDALE 11-12H | Dunn County, ND | Oil & Gas Property | Feb 2025 |
| 91948 | OAKES | Dewey County, OK | Oil & Gas Property | Feb 2025 |
| 91949 | OAKES | Dewey County, OK | Oil & Gas Property | Jan 2025 |
| 91950 | OAKES | Woodson County, KS | Oil Property | May 2012 |
| 91951 | OAKES | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 91952 | OAKES | McKean County, PA | Oil Property | Dec 2007 |
| 91953 | OAKES | Barber County, KS | Oil & Gas Property | Dec 2024 |
| 91954 | OAKES | Woodson County, KS | Oil Property | Dec 2024 |
| 91955 | OAKES | Love County, OK | Oil & Gas Property | Jan 2025 |
| 91956 | OAKES 1 | Caddo County, OK | Oil & Gas Property | Jan 2025 |
| 91957 | OAKES 25 | Texas County, OK | Oil & Gas Property | Jan 2025 |
| 91958 | OAKES C.W. ESTATE | Limestone County, TX | Oil & Gas Property | Jan 2025 |
| 91959 | OAKES G B | Chautauqua County, KS | Oil Property | Nov 2024 |
| 91960 | OAKES PAT GAS UNIT | Limestone County, TX | Oil & Gas Property | Jan 2025 |
| 91961 | OAKES T.C. ESTATE GAS UNIT | Freestone County, TX | Oil & Gas Property | Jan 2025 |
| 91962 | OAKES, OLLIE | Metcalfe County, KY | Oil Property | Nov 2004 |
| 91963 | OAKES-TURNER GAS UNIT NO. 1 | Freestone County, TX | Oil & Gas Property | Jan 2025 |
| 91964 | OAKHURST F | Montgomery County, KS | Gas Property | Oct 2024 |
| 91965 | OAKLAND | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 91966 | OAKLAND | Mountrail County, ND | Oil & Gas Property | Feb 2025 |
| 91967 | OAKLAND | Adams County, MS | Oil Property | Jan 1997 |
| 91968 | OAKLAND | Kern County, CA | Oil & Gas Property | Dec 2024 |
| 91969 | OAKLAND 151-103-29B-32-1H | McKenzie County, ND | Oil & Gas Property | Feb 2025 |
| 91970 | OAKLAND CEMET | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 91971 | OAKLAND CORP | Cass County, TX | Oil & Gas Property | Nov 2022 |
| 91972 | OAKLAND CORP WATERFLOOD UNIT | Cass County, TX | Oil & Gas Property | Oct 2024 |
| 91973 | OAKLAND FEDERAL 1 | McKenzie County, ND | Oil & Gas Property | Feb 2025 |
| 91974 | OAKLEAF, LINN | Labette County, KS | Gas Property | Dec 2024 |
| 91975 | OAKLEY | Hopkins County, KY | Oil Property | Feb 2022 |
| 91976 | OAKLEY | Dewey County, OK | Oil & Gas Property | Jan 2025 |
| 91977 | OAKLEY FED | Converse County, WY | Oil & Gas Property | Feb 2025 |
| 91978 | OAKLIEF-SHARROCK | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 91979 | OAKMAN | Love County, OK | Oil & Gas Property | Nov 2016 |
| 91980 | OAKMONT | Dawson County, TX | Oil & Gas Property | Jan 2025 |
| 91981 | OAKMONT 11 10 STATE COM | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 91982 | OAKMONT 1505 | Kingfisher County, OK | Oil & Gas Property | Jan 2025 |
| 91983 | OAKMONT 1H | Tarrant County, TX | Gas Property | Jan 2025 |
| 91984 | OAKMONT COUNT | Allegheny County, PA | Gas Property | Dec 2024 |
| 91985 | OAKMONT EAST | Allegheny County, PA | Gas Property | Dec 2024 |
| 91986 | OAKRIDGE | Ventura County, CA | Oil & Gas Property | Dec 2024 |
| 91987 | OAKRIDGE | Chautauqua County, KS | Oil & Gas Property | Jun 2015 |
| 91988 | OAKS | Custer County, OK | Oil & Gas Property | Jan 2025 |
| 91989 | OAKS | Johnson County, TX | Oil & Gas Property | Jan 2025 |
| 91990 | OAKS | Martin County, TX | Oil & Gas Property | Jan 2025 |
| 91991 | OAKS 1-4H | Grady County, OK | Oil & Gas Property | Jan 2025 |
| 91992 | OAKS STATE | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 91993 | OAKSON A FEDERAL | Chaves County, NM | Oil Property | Oct 2001 |
| 91994 | OAKSON B FEDERAL | Chaves County, NM | Oil & Gas Property | Nov 2009 |
| 91995 | OAKWOOD | Los Angeles County, CA | Oil & Gas Property | Mar 2001 |
| 91996 | OAKWOOD | Tarrant County, TX | Gas Property | Jan 2025 |
| 91997 | OAKWOOD CLUB | Cuyahoga County, OH | Oil & Gas Property | Dec 2015 |
| 91998 | OAKWOOD REALTY | Jefferson County, TX | Oil & Gas Property | Oct 2024 |
| 91999 | OARD | Kay County, OK | Oil & Gas Property | Jan 2021 |
| 92000 | OARE A | Alfalfa County, OK | Oil & Gas Property | Feb 2014 |