| 2001 | DEL AMO | Los Angeles County, CA | Oil & Gas Property | Jan 2003 |
| 2002 | DEL BOCA VISTA | Tarrant County, TX | Oil & Gas Property | Mar 2011 |
| 2003 | DEL BOCA VISTA 372 | Yoakum County, TX | Oil & Gas Property | Jan 2024 |
| 2004 | DEL CAMINO 1 | Weld County, CO | Oil & Gas Property | Jul 2019 |
| 2005 | DEL MONTE | Kern County, CA | Oil & Gas Property | Dec 2023 |
| 2006 | DEL RE | Toole County, MT | Gas Property | Jan 2024 |
| 2007 | DEL REAL | Mitchell County, TX | Oil & Gas Property | May 2016 |
| 2008 | DEL REY | Los Angeles County, CA | Oil & Gas Property | Oct 2023 |
| 2009 | DEL REY | Kern County, CA | Oil & Gas Property | Dec 2023 |
| 2010 | DEL REY FEE | Kern County, CA | Oil & Gas Property | Nov 2023 |
| 2011 | DEL REY WEST FEE | Kern County, CA | Oil & Gas Property | Nov 2023 |
| 2012 | DEL SCORCHO | Belmont County, OH | Gas Property | Dec 2023 |
| 2013 | DEL SOL 19 | Martin County, TX | Oil & Gas Property | Jan 2024 |
| 2014 | DEL-AMO | Los Angeles County, CA | Oil & Gas Property | May 1998 |
| 2015 | DELA STATE 58-T2-48 1H | Reeves County, TX | Oil & Gas Property | Jan 2024 |
| 2016 | DELACROIX | Plaquemines Parish, LA | Oil & Gas Property | Jan 2024 |
| 2017 | DELAINE | Okmulgee County, OK | Oil Property | Apr 2018 |
| 2018 | DELAMATER | Burleson County, TX | Oil & Gas Property | Jan 2024 |
| 2019 | DELAMBRE ETA | Pointe Coupee Parish, LA | Oil & Gas Property | Apr 2006 |
| 2020 | DELANA | Canadian County, OK | Oil & Gas Property | Jun 2017 |
| 2021 | DELAND & FERRIS | Yolo County, CA | Gas Property | Jan 2004 |
| 2022 | DELANEY | Lamar County, AL | Gas Property | Feb 2016 |
| 2023 | DELANEY | Miller County, AR | Oil Property | Jul 2006 |
| 2024 | DELANEY | Sabine Parish, LA | Oil Property | Jan 2024 |
| 2025 | DELANEY | Glacier County, MT | Gas Property | Jan 2024 |
| 2026 | DELANEY | Ness County, KS | Oil Property | Dec 2023 |
| 2027 | DELANEY | Sweetwater County, WY | Oil & Gas Property | Feb 2024 |
| 2028 | DELANEY | Ness County, KS | Oil Property | Nov 2023 |
| 2029 | DELANEY | Sweetwater County, WY | Oil & Gas Property | Nov 2009 |
| 2030 | DELANEY | Los Angeles County, CA | Oil Property | Feb 1986 |
| 2031 | DELANEY | Anderson County, TX | Oil & Gas Property | Jan 2024 |
| 2032 | DELANEY | Claiborne Parish, LA | Oil & Gas Property | May 2016 |
| 2033 | DELANEY 11-5 | Campbell County, WY | Gas Property | Jan 2008 |
| 2034 | DELANEY DAV | Cayuga County, NY | Gas Property | Dec 2022 |
| 2035 | DELANEY FEDERAL 21-4 4-9H | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 2036 | DELANEY J 651 | Tioga County, PA | Gas Property | Feb 2024 |
| 2037 | DELANEY RIM | Sweetwater County, WY | Oil & Gas Property | Feb 2024 |
| 2038 | DELANEY-TUNNELL | Santa Barbara County, CA | Oil & Gas Property | May 2018 |
| 2039 | DELANGE | Crane County, TX | Oil & Gas Property | Jan 2024 |
| 2040 | DELANO | Carter County, OK | Oil & Gas Property | Jan 2024 |
| 2041 | DELANO PL | St. Landry Parish, LA | Oil & Gas Property | Dec 2023 |
| 2042 | DELANTY | Kern County, CA | Oil Property | Nov 1990 |
| 2043 | DELAPLAINE WA | Monroe County, OH | Oil & Gas Property | Dec 2022 |
| 2044 | DELAPP | Washington County, OK | Oil & Gas Property | Feb 2020 |
| 2045 | DELAPP | Sheridan County, WY | Gas Property | Aug 2010 |
| 2046 | DELAPP | Sheridan County, WY | Gas Property | May 2012 |
| 2047 | DELAWARE | Nowata County, OK | Oil & Gas Property | Aug 2021 |
| 2048 | DELAWARE 28 | Roger Mills County, OK | Oil & Gas Property | Jan 2024 |
| 2049 | DELAWARE RANCH | Eddy County, NM | Oil & Gas Property | Feb 2024 |
| 2050 | DELAWARE RANCH 12 W1MD FEDERAL COM | Eddy County, NM | Oil & Gas Property | Feb 2024 |
| 2051 | DELAY | Stanton County, KS | Gas Property | Dec 2023 |
| 2052 | DELBERT SEAY | Jefferson County, OK | Oil Property | Feb 2024 |
| 2053 | DELBERT SULLIVA | Woodson County, KS | Oil Property | Mar 2023 |
| 2054 | DELBERT WALT TRUST | Sheridan County, KS | Oil Property | Dec 2023 |
| 2055 | DELEON REINHARD UNIT | Karnes County, TX | Oil & Gas Property | Jan 2024 |
| 2056 | DELEON WIATR | Karnes County, TX | Oil & Gas Property | Jan 2024 |
| 2057 | DELEON, LULA TR | Sebastian County, AR | Gas Property | Jan 2024 |
| 2058 | DELHAGEN | Susquehanna County, PA | Gas Property | Feb 2024 |
| 2059 | DELHI | Eddy County, NM | Oil & Gas Property | Feb 2024 |
| 2060 | DELHI | Franklin Parish, LA | Oil & Gas Property | Jan 2006 |
| 2061 | DELHI B STATE | Eddy County, NM | Oil & Gas Property | Feb 2024 |
| 2062 | DELHI COM | San Juan County, NM | Oil & Gas Property | Feb 2024 |
| 2063 | DELHI FEDERAL | Lea County, NM | Oil & Gas Property | Feb 2024 |
| 2064 | DELHI TAYLOR | San Juan County, NM | Oil & Gas Property | Feb 2024 |
| 2065 | DELHI TURNER | San Juan County, NM | Oil & Gas Property | Feb 2024 |
| 2066 | DELHI-JONES | Schleicher County, TX | Oil & Gas Property | Jan 2024 |
| 2067 | DELIA 5992 14-30 | Burke County, ND | Oil & Gas Property | Feb 2024 |
| 2068 | DELIA USA 14-9TFH | Dunn County, ND | Oil & Gas Property | Feb 2024 |
| 2069 | DELIGHTFUL DASHER 11 | Reeves County, TX | Oil & Gas Property | Dec 2023 |
| 2070 | DELIMA | Bradford County, PA | Gas Property | Feb 2024 |
| 2071 | DELIMONT | Phillips County, KS | Oil Property | Dec 2023 |
| 2072 | DELK | Beaver County, OK | Oil & Gas Property | Dec 2017 |
| 2073 | DELK, RAYMOND | Clinton County, KY | Oil & Gas Property | Dec 2018 |
| 2074 | DELL | Butler County, KS | Oil Property | Dec 2023 |
| 2075 | DELL MAYER | Coal County, OK | Oil & Gas Property | Jan 2024 |
| 2076 | DELLA | Caddo County, OK | Oil & Gas Property | Jan 2024 |
| 2077 | DELLA | Grimes County, TX | Oil & Gas Property | Jan 2024 |
| 2078 | DELLA 29 FEDERAL | Lea County, NM | Oil & Gas Property | Feb 2024 |
| 2079 | DELLA COLVIN | Lincoln Parish, LA | Oil & Gas Property | Nov 2023 |
| 2080 | DELLA GROSS | Russell County, KS | Oil Property | Oct 2023 |
| 2081 | DELLA WILLIAMS | Sabine Parish, LA | Oil Property | Jan 2024 |
| 2082 | DELLANA WARD USA 14-7H | Dunn County, ND | Oil & Gas Property | Feb 2024 |
| 2083 | DELLERE 1-25 | Rawlins County, KS | Oil Property | Dec 2023 |
| 2084 | DELLEY-RUFFINO UNIT | Robertson County, TX | Oil & Gas Property | Jan 2024 |
| 2085 | DELLINGER 1-36 | Seward County, KS | Gas Property | Jun 2000 |
| 2086 | DELLUOMO | Comanche County, OK | Oil Property | Nov 2023 |
| 2087 | DELMAR 24-13-6 | Carroll County, OH | Oil & Gas Property | Dec 2023 |
| 2088 | DELMAR CHRISLER | Ellis County, KS | Oil Property | Dec 1982 |
| 2089 | DELMAR SANOR | Columbiana County, OH | Oil & Gas Property | Dec 2023 |
| 2090 | DELMONT 34-23H | Dunn County, ND | Oil & Gas Property | Feb 2024 |
| 2091 | DELMUL | Ashtabula County, OH | Oil & Gas Property | Dec 1990 |
| 2092 | DELO | San Juan County, NM | Oil & Gas Property | Feb 2024 |
| 2093 | DELOACH | Claiborne Parish, LA | Oil Property | Nov 2023 |
| 2094 | DELOACHE | Hockley County, TX | Oil & Gas Property | Jan 2024 |
| 2095 | DELOE | Clarion County, PA | Gas Property | Dec 2023 |
| 2096 | DELONEY | Nacogdoches County, TX | Oil & Gas Property | Jan 2024 |
| 2097 | DELONEY FAYE BIRDWELL | Nacogdoches County, TX | Oil & Gas Property | Sep 2011 |
| 2098 | DELONG | Irion County, TX | Oil & Gas Property | Jan 2024 |
| 2099 | DELONG | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 2100 | DELONG UNIT | Monroe County, OH | Oil & Gas Property | Dec 2023 |