| 1901 | OVERSTREET | Le Flore County, OK | Gas Property | Feb 2016 |
| 1902 | OVERSTREET | Washita County, OK | Oil & Gas Property | Sep 2022 |
| 1903 | OVERSTREET | Cooke County, TX | Oil Property | Oct 2025 |
| 1904 | OVERSTREET | Polk County, TX | Oil & Gas Property | Apr 2025 |
| 1905 | OVERSTREET | Seminole County, OK | Oil & Gas Property | Jun 2025 |
| 1906 | OVERTON | Garfield County, OK | Oil & Gas Property | May 2016 |
| 1907 | OVERTON | Smith County, TX | Oil & Gas Property | Oct 2025 |
| 1908 | OVERTON | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 1909 | OVERTON | Beaver County, OK | Oil & Gas Property | Sep 2025 |
| 1910 | OVERTON | Logan County, OK | Oil & Gas Property | Oct 2025 |
| 1911 | OVERTON | Beaver County, OK | Oil & Gas Property | Oct 2025 |
| 1912 | OVERTON | Christian County, KY | Oil Property | Jul 2022 |
| 1913 | OVERTON | Beaver County, OK | Oil & Gas Property | Oct 2025 |
| 1914 | OVERTON | Dawson County, TX | Oil & Gas Property | Oct 2025 |
| 1915 | OVERTON | Glasscock County, TX | Oil & Gas Property | Oct 2025 |
| 1916 | OVERTON | Beaver County, OK | Oil & Gas Property | Oct 2025 |
| 1917 | OVERTON | Adams County, MS | Oil & Gas Property | Nov 2025 |
| 1918 | OVERTON BEN | Brown County, TX | Oil & Gas Property | Oct 2025 |
| 1919 | OVERTON G | Rusk County, TX | Oil & Gas Property | Sep 2025 |
| 1920 | OVERTON NE (PETTIT -A-) UNIT | Rusk County, TX | Oil & Gas Property | Oct 2025 |
| 1921 | OVIATT | Major County, OK | Oil & Gas Property | Jan 2006 |
| 1922 | OVMLC | Dawson County, TX | Oil & Gas Property | Oct 2025 |
| 1923 | OW PROPER | Elk County, PA | Gas Property | Dec 2024 |
| 1924 | OWAN 14B-22HN | Divide County, ND | Oil & Gas Property | Oct 2025 |
| 1925 | OWAN 23-26H | Williams County, ND | Oil & Gas Property | Oct 2025 |
| 1926 | OWAN 29-32 1-H | Williams County, ND | Oil & Gas Property | Oct 2025 |
| 1927 | OWAN-NEHRING 27-34 1-H | Williams County, ND | Oil & Gas Property | Oct 2025 |
| 1928 | OWASCO UNIT | Kimball County, NE | Oil Property | Dec 2024 |
| 1929 | OWC 0 | Los Angeles County, CA | Oil & Gas Property | Nov 2025 |
| 1930 | OWE 0 | Los Angeles County, CA | Oil & Gas Property | Nov 2025 |
| 1931 | OWEN | Uinta County, WY | Oil & Gas Property | Oct 2025 |
| 1932 | OWEN | San Juan County, NM | Oil & Gas Property | Oct 2025 |
| 1933 | OWEN | Logan County, KS | Oil Property | Jun 2025 |
| 1934 | OWEN | Stafford County, KS | Oil Property | Mar 1992 |
| 1935 | OWEN | Moore County, TX | Oil & Gas Property | Oct 2025 |
| 1936 | OWEN | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 1937 | OWEN | Johnson County, TX | Oil & Gas Property | Oct 2025 |
| 1938 | OWEN | Burleson County, TX | Oil & Gas Property | Oct 2025 |
| 1939 | OWEN | Webb County, TX | Oil & Gas Property | Oct 2025 |
| 1940 | OWEN | Jack County, TX | Oil & Gas Property | Apr 2025 |
| 1941 | OWEN | Ector County, TX | Oil & Gas Property | Oct 2025 |
| 1942 | OWEN | Jack County, TX | Oil & Gas Property | Oct 2025 |
| 1943 | OWEN | Young County, TX | Oil & Gas Property | Oct 2025 |
| 1944 | OWEN | Webb County, TX | Oil & Gas Property | Oct 2025 |
| 1945 | OWEN 1 | Weld County, CO | Oil & Gas Property | Oct 2025 |
| 1946 | OWEN 2 | Dewey County, OK | Oil & Gas Property | Oct 2025 |
| 1947 | OWEN DOWDY | Stevens County, KS | Oil Property | Aug 2017 |
| 1948 | OWEN F | Burleson County, TX | Oil & Gas Property | May 2022 |
| 1949 | OWEN F | Knox County, OH | Oil Property | Dec 2017 |
| 1950 | OWEN GAS UNIT | Kearny County, KS | Gas Property | Jun 2025 |
| 1951 | OWEN GMB | Harrison County, TX | Gas Property | Oct 2025 |
| 1952 | OWEN ILLINOIS | Allen Parish, LA | Oil & Gas Property | Dec 2024 |
| 1953 | OWEN J | Ellis County, TX | Oil & Gas Property | Aug 2025 |
| 1954 | OWEN J.D. GAS UNIT | Bowie County, TX | Oil & Gas Property | Feb 2018 |
| 1955 | OWEN MESA 2 | Eddy County, NM | Oil & Gas Property | Dec 2019 |
| 1956 | OWEN MILLER | Washington County, OH | Gas Property | Dec 1987 |
| 1957 | OWEN RHB 1H | Harrison County, TX | Gas Property | Oct 2025 |
| 1958 | OWEN, RC | Christian County, KY | Oil Property | Nov 2017 |
| 1959 | OWEN-BERRY | Cooke County, TX | Oil Property | Oct 2025 |
| 1960 | OWEN-BRISCOE | Webb County, TX | Oil & Gas Property | Oct 2025 |
| 1961 | OWEN-BRISCOE STATE-WCSL GU B 2H | Webb County, TX | Gas Property | Oct 2025 |
| 1962 | OWEN-CHALK | Howard County, TX | Oil & Gas Property | Oct 2025 |
| 1963 | OWEN-STATE 1 | Webb County, TX | Oil & Gas Property | Oct 2025 |
| 1964 | OWENS | Wise County, TX | Oil & Gas Property | Oct 2025 |
| 1965 | OWENS | Harper County, OK | Oil & Gas Property | Sep 2025 |
| 1966 | OWENS | Jack County, TX | Oil & Gas Property | Sep 2021 |
| 1967 | OWENS | Ellis County, OK | Oil & Gas Property | Oct 2025 |
| 1968 | OWENS | Haskell County, KS | Oil & Gas Property | Jun 2025 |
| 1969 | OWENS | Colorado County, TX | Oil & Gas Property | Oct 2025 |
| 1970 | OWENS | Oklahoma County, OK | Oil & Gas Property | Oct 2025 |
| 1971 | OWENS | Magoffin County, KY | Gas Property | Dec 2023 |
| 1972 | OWENS | Claiborne Parish, LA | Oil & Gas Property | Dec 2024 |
| 1973 | OWENS | Pottawatomie County, OK | Oil Property | Aug 2014 |
| 1974 | OWENS | Seminole County, OK | Oil & Gas Property | Jun 2014 |
| 1975 | OWENS | Cass County, TX | Oil & Gas Property | Oct 2025 |
| 1976 | OWENS | Woodson County, KS | Oil Property | Feb 2000 |
| 1977 | OWENS | Johnson County, TX | Oil & Gas Property | Sep 2025 |
| 1978 | OWENS | Lee County, TX | Oil & Gas Property | Oct 2025 |
| 1979 | OWENS | Creek County, OK | Oil & Gas Property | Aug 2025 |
| 1980 | OWENS | Crockett County, TX | Oil & Gas Property | Oct 2025 |
| 1981 | OWENS | Upton County, TX | Oil & Gas Property | Oct 2025 |
| 1982 | OWENS | Gallia County, OH | Oil & Gas Property | Dec 2023 |
| 1983 | OWENS | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 1984 | OWENS | Panola County, TX | Oil & Gas Property | Sep 2025 |
| 1985 | OWENS | Webb County, TX | Oil & Gas Property | Oct 2025 |
| 1986 | OWENS | Ochiltree County, TX | Oil & Gas Property | Oct 2025 |
| 1987 | OWENS | Upton County, TX | Oil & Gas Property | Oct 2025 |
| 1988 | OWENS | Clinton County, KY | Oil & Gas Property | Sep 2022 |
| 1989 | OWENS | Montgomery County, KS | Gas Property | Nov 2017 |
| 1990 | OWENS | Sumner County, KS | Oil Property | Jun 1990 |
| 1991 | OWENS | Grant County, KS | Gas Property | Jun 2025 |
| 1992 | OWENS | Panola County, TX | Oil & Gas Property | Oct 2025 |
| 1993 | OWENS | Reagan County, TX | Oil & Gas Property | Oct 2025 |
| 1994 | OWENS | Caddo Parish, LA | Oil Property | Dec 2024 |
| 1995 | OWENS | Carter County, OK | Oil & Gas Property | Aug 2025 |
| 1996 | OWENS | Park County, WY | Oil & Gas Property | Oct 2025 |
| 1997 | OWENS | Wilbarger County, TX | Oil & Gas Property | Sep 2025 |
| 1998 | OWENS | Shackelford County, TX | Oil & Gas Property | Sep 2025 |
| 1999 | OWENS | Creek County, OK | Oil Property | Mar 2025 |
| 2000 | OWENS & SNOOT | Crane County, TX | Oil Property | Jan 2020 |