| 2001 | OWL D | Gonzales County, TX | Oil & Gas Property | Mar 2026 |
| 2002 | OWL DRAW | Culberson County, TX | Oil & Gas Property | Mar 2026 |
| 2003 | OWL DRAW 22 27 B2 | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2004 | OWL DRAW 22 W1AP FEDERAL COM | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2005 | OWL DRAW 23 DM FEDERAL COM | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2006 | OWL DRAW 27 22 | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2007 | OWL ROAD | Coal County, OK | Oil & Gas Property | Mar 2026 |
| 2008 | OWLS-SUN DEVILS 3H | Shelby County, TX | Gas Property | Mar 2026 |
| 2009 | OWNBEY | Hutchinson County, TX | Oil & Gas Property | Mar 2026 |
| 2010 | OWNBEY | Ellis County, OK | Oil & Gas Property | Dec 2019 |
| 2011 | OWNBY | Yoakum County, TX | Oil & Gas Property | Jul 1994 |
| 2012 | OWNBY SAN ANDRE | Yoakum County, TX | Oil & Gas Property | Mar 2026 |
| 2013 | OWNBY/CLEARFORK, UPPER/ | Yoakum County, TX | Oil & Gas Property | Mar 2026 |
| 2014 | OWS 0 | Los Angeles County, CA | Oil & Gas Property | Mar 2026 |
| 2015 | OWSLEY | Floyd County, KY | Gas Property | Dec 2024 |
| 2016 | OWW 00 | Los Angeles County, CA | Oil & Gas Property | Mar 2026 |
| 2017 | OXBOW | Washington County, OH | Oil & Gas Property | Dec 2025 |
| 2018 | OXBOW | Campbell County, WY | Gas Property | Nov 2003 |
| 2019 | OXBOW 23 23 W1EH FEDERAL COM | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2020 | OXBOW 23 24 | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2021 | OXBOW 23 24 B2 | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2022 | OXBOW 23 24 W | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2023 | OXBOW 26 25 B2 | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2024 | OXBOW 26 25 W | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2025 | OXBOW CC 17 8 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 2026 | OXER UNIT | Parker County, TX | Oil & Gas Property | Mar 2026 |
| 2027 | OXFORD | Jackson Parish, LA | Oil & Gas Property | Jan 2025 |
| 2028 | OXFORD 1 | Stephens County, OK | Oil Property | Mar 2026 |
| 2029 | OXFORD FARMS | Boulder County, CO | Oil & Gas Property | Mar 2026 |
| 2030 | OXFORD UNIT | Karnes County, TX | Oil & Gas Property | Mar 2026 |
| 2031 | OXFORD WITTE-CREEL MIXON SA | Karnes County, TX | Oil & Gas Property | Mar 2026 |
| 2032 | OXFORD-PEABODY | Coshocton County, OH | Oil & Gas Property | Dec 2025 |
| 2033 | OXFORD-PEABODY 1 | Perry County, OH | Oil & Gas Property | Dec 2022 |
| 2034 | OXFORD-WITTE UNIT | Karnes County, TX | Oil & Gas Property | Mar 2026 |
| 2035 | OXLEY | Major County, OK | Oil & Gas Property | Jul 2025 |
| 2036 | OXLEY | Caddo County, OK | Oil Property | Dec 2025 |
| 2037 | OXLEY ET AL UNIT | Chambers County, TX | Oil & Gas Property | Mar 2026 |
| 2038 | OXNARD | San Juan County, NM | Oil & Gas Property | Mar 2026 |
| 2039 | OXNARD | Weld County, CO | Oil & Gas Property | Apr 2025 |
| 2040 | OXNARD WN FEDERAL | San Juan County, NM | Oil & Gas Property | Mar 2026 |
| 2041 | OXSHEER | Panola County, TX | Oil & Gas Property | Jan 2026 |
| 2042 | OXSHEER-SP-WIENER E (SA) | Panola County, TX | Oil & Gas Property | Jan 2026 |
| 2043 | OXTAIL 54-2-40 | Loving County, TX | Oil & Gas Property | Mar 2026 |
| 2044 | OXY 33 FEDERAL | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2045 | OXY BANANA GIRL | Lea County, NM | Oil & Gas Property | Mar 2024 |
| 2046 | OXY BIG HOSS | Eddy County, NM | Oil & Gas Property | Nov 2022 |
| 2047 | OXY BITS STATE | Eddy County, NM | Oil & Gas Property | Aug 2015 |
| 2048 | OXY BOBCAT FEDERAL | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 2049 | OXY BOERNE FEDERAL | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2050 | OXY BOO | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2051 | OXY BULLDOG STATE | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2052 | OXY CELTIC STATE | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2053 | OXY CHECKER STATE | Eddy County, NM | Oil & Gas Property | Dec 2025 |
| 2054 | OXY CHOPSTICKS | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2055 | OXY FEDERAL | Garfield County, CO | Oil & Gas Property | Mar 2026 |
| 2056 | OXY FEDERAL 7 | Garfield County, CO | Oil & Gas Property | Mar 2026 |
| 2057 | OXY FEDERAL COM | Chaves County, NM | Gas Property | Aug 2018 |
| 2058 | OXY FEE 24 1 | Reeves County, TX | Oil & Gas Property | Jan 2023 |
| 2059 | OXY GRANDSLAM FEDERAL | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2060 | OXY HOPSING FEDERAL | Eddy County, NM | Oil & Gas Property | Oct 2025 |
| 2061 | OXY IJAM STATE | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2062 | OXY LUCKY DOG | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2063 | OXY MISTY FEDERAL | Eddy County, NM | Oil & Gas Property | Dec 2021 |
| 2064 | OXY PARKS | Midland County, TX | Oil & Gas Property | Mar 2026 |
| 2065 | OXY PEARL STATE | Eddy County, NM | Oil & Gas Property | Mar 2023 |
| 2066 | OXY ROSCOE FEDERAL | Eddy County, NM | Oil & Gas Property | Nov 2018 |
| 2067 | OXY SKINNY SALOON | Eddy County, NM | Oil & Gas Property | Jun 2014 |
| 2068 | OXY SPARKPLUG STATE | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 2069 | OXY STATE | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2070 | OXY STL FEDERAL | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2071 | OXY SWEET & SOUR | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2072 | OXY SWINGER | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2073 | OXY THE BUG | Eddy County, NM | Oil & Gas Property | Dec 2025 |
| 2074 | OXY USA INC MV | Garfield County, CO | Oil & Gas Property | Apr 2026 |
| 2075 | OXY VIKING FEDERAL | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2076 | OXY WAKY PACK FEDERAL | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2077 | OXY WALLACE | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2078 | OXY XICA FEDERAL | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 2079 | OXY YATES | Eddy County, NM | Oil & Gas Property | Mar 2024 |
| 2080 | OYER | Stark County, OH | Oil & Gas Property | Dec 2025 |
| 2081 | OYERVIDES UNIT | Wilson County, TX | Oil & Gas Property | Mar 2026 |
| 2082 | OYLER | Canadian County, OK | Oil & Gas Property | Mar 2026 |
| 2083 | OYLER | Seward County, KS | Oil & Gas Property | Apr 2025 |
| 2084 | OYLER | Cimarron County, OK | Gas Property | Mar 2026 |
| 2085 | OYLER FIU 1-30-19XH | Blaine County, OK | Oil & Gas Property | Mar 2026 |
| 2086 | OYLOE 5199 | McKenzie County, ND | Oil & Gas Property | Apr 2026 |
| 2087 | OYLOE STATE | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 2088 | OYSTER | Mahoning County, OH | Oil & Gas Property | Dec 2025 |
| 2089 | OYSTER | Miami County, KS | Oil Property | Dec 2025 |
| 2090 | OYSTER BAYOU FIELD UNIT | Chambers County, TX | Oil & Gas Property | Mar 2026 |
| 2091 | OZARK | Fresno County, CA | Oil & Gas Property | Sep 2025 |
| 2092 | OZARK | Fayette County, TX | Oil & Gas Property | Mar 2026 |
| 2093 | OZARK REAL ESTATE | Johnson County, AR | Gas Property | Jun 2024 |
| 2094 | OZARK REAL ESTATE | Johnson County, AR | Gas Property | Jun 2024 |
| 2095 | OZELL | Beaver County, OK | Oil & Gas Property | Aug 2017 |
| 2096 | OZIER | Dawson County, TX | Oil & Gas Property | Mar 2026 |
| 2097 | OZMAN TRUST | Phillips County, CO | Gas Property | Aug 2023 |
| 2098 | OZOG-THOMPSON 00 | Westmoreland County, PA | Gas Property | Dec 2025 |
| 2099 | OZONA DEVELOPMENT 7 | Crockett County, TX | Oil & Gas Property | Mar 2026 |
| 2100 | OZONA GAS UNIT | Crockett County, TX | Oil & Gas Property | Mar 2026 |