| 19901 | INGRAM TRINITY | Freestone County, TX | Oil & Gas Property | Nov 2025 |
| 19902 | INGRAM/BOWMAN | Dimmit County, TX | Oil & Gas Property | Jan 2023 |
| 19903 | INGRID 1 | Moore County, TX | Gas Property | Jun 2022 |
| 19904 | INLAND | Eastland County, TX | Gas Property | Nov 2025 |
| 19905 | INMAN A | Upshur County, TX | Oil & Gas Property | Nov 2025 |
| 19906 | INMAN UNIT | Karnes County, TX | Oil & Gas Property | Nov 2025 |
| 19907 | INTEGRITY | Martin County, TX | Oil & Gas Property | Dec 2025 |
| 19908 | INTERGALACTIC UNIT | Ward County, TX | Oil & Gas Property | Nov 2025 |
| 19909 | INTERNATIONAL PAPER | Rusk County, TX | Oil & Gas Property | Nov 2025 |
| 19910 | INTERNATIONAL PAPER | Panola County, TX | Oil & Gas Property | Nov 2025 |
| 19911 | INTERNATIONAL PAPER CO | Panola County, TX | Oil & Gas Property | Nov 2025 |
| 19912 | INTERNATIONAL PAPER CO | Panola County, TX | Oil & Gas Property | Oct 2025 |
| 19913 | INTERNATIONAL PAPER CO. GU 4H | Panola County, TX | Oil & Gas Property | Nov 2025 |
| 19914 | INTERNATIONAL UNIT | Howard County, TX | Oil & Gas Property | Nov 2025 |
| 19915 | INTERSTATE | Reeves County, TX | Oil & Gas Property | Aug 2025 |
| 19916 | INTERSTATE | Midland County, TX | Oil & Gas Property | Nov 2025 |
| 19917 | INTIMIDATION 33-63 | Ward County, TX | Oil & Gas Property | Nov 2025 |
| 19918 | INTO THE STORM | Fisher County, TX | Oil & Gas Property | Nov 2025 |
| 19919 | INTREPID 55-12 | Reeves County, TX | Oil & Gas Property | Nov 2025 |
| 19920 | INTREPID STATE UNIT | Reeves County, TX | Oil & Gas Property | Nov 2025 |
| 19921 | INVADER | Andrews County, TX | Oil & Gas Property | Nov 2025 |
| 19922 | INVESTORS ROYALTY | Terry County, TX | Oil & Gas Property | Nov 2025 |
| 19923 | INVICTUS 29-48 | Loving County, TX | Oil & Gas Property | Nov 2025 |
| 19924 | INXS 7 | Wilson County, TX | Oil & Gas Property | Nov 2025 |
| 19925 | IODINE FR 4 | Midland County, TX | Oil & Gas Property | Nov 2025 |
| 19926 | IOMA 30 | Howard County, TX | Oil & Gas Property | Nov 2025 |
| 19927 | IONI CREEK | Palo Pinto County, TX | Oil & Gas Property | Nov 2025 |
| 19928 | IOU RANCH | Stonewall County, TX | Oil Property | Nov 2025 |
| 19929 | IOWA | Pecos County, TX | Oil & Gas Property | Apr 2021 |
| 19930 | IOWA GULCH 9796-F | Ward County, TX | Oil & Gas Property | Nov 2025 |
| 19931 | IOWA REALTY TRUST | Pecos County, TX | Oil & Gas Property | Jul 2024 |
| 19932 | IOWA REALTY TRUST | Pecos County, TX | Oil & Gas Property | Nov 2025 |
| 19933 | IP FARMS ( | Brazoria County, TX | Oil & Gas Property | Jul 2024 |
| 19934 | IPCO-E JOHNSON (AW) | Panola County, TX | Oil & Gas Property | Nov 2025 |
| 19935 | IRA HEARD | Refugio County, TX | Oil & Gas Property | Oct 2025 |
| 19936 | IRA N | Scurry County, TX | Oil & Gas Property | Nov 2025 |
| 19937 | IRA N. W | Scurry County, TX | Oil & Gas Property | Nov 2025 |
| 19938 | IRA(1700 ZONE)UNIT | Scurry County, TX | Oil & Gas Property | Oct 2025 |
| 19939 | IRBY | Grayson County, TX | Oil & Gas Property | Nov 2025 |
| 19940 | IRELAND UNIT | Denton County, TX | Oil & Gas Property | Nov 2025 |
| 19941 | IRENE | Zapata County, TX | Oil & Gas Property | Nov 2025 |
| 19942 | IRENE | Brazos County, TX | Oil & Gas Property | Oct 2025 |
| 19943 | IRENE O UNIT 3-18 | Reeves County, TX | Oil & Gas Property | Nov 2025 |
| 19944 | IRION | Rusk County, TX | Oil & Gas Property | Nov 2025 |
| 19945 | IRISH | Hale County, TX | Oil & Gas Property | Apr 2020 |
| 19946 | IRMA | Moore County, TX | Oil Property | Nov 2025 |
| 19947 | IRMA | Upton County, TX | Oil & Gas Property | Nov 2025 |
| 19948 | IRON BRIDGE TANNEHILL A SAND UNT | Dickens County, TX | Oil & Gas Property | Nov 2025 |
| 19949 | IRON CITY STATE | Reeves County, TX | Oil & Gas Property | Nov 2025 |
| 19950 | IRON DUKE | Madison County, TX | Oil & Gas Property | Nov 2025 |
| 19951 | IRON DUKE (ALLOCATION) | Madison County, TX | Oil & Gas Property | Nov 2025 |
| 19952 | IRON EAGLE DEEP UNIT | Reeves County, TX | Oil & Gas Property | Nov 2025 |
| 19953 | IRON EAGLE UNIT | Reeves County, TX | Oil & Gas Property | Nov 2025 |
| 19954 | IRON HORSE | Throckmorton County, TX | Oil & Gas Property | Nov 2025 |
| 19955 | IRON MIKE | Reeves County, TX | Oil & Gas Property | Oct 2025 |
| 19956 | IRON MOUNTAIN | Polk County, TX | Oil & Gas Property | Nov 2025 |
| 19957 | IRON SNAKE 1912 | Pecos County, TX | Oil & Gas Property | Nov 2025 |
| 19958 | IRONBORN 34-27 | Dawson County, TX | Oil & Gas Property | Nov 2025 |
| 19959 | IRONOSA 1H | San Augustine County, TX | Oil & Gas Property | Nov 2025 |
| 19960 | IRONOSA SU 1H | San Augustine County, TX | Gas Property | Nov 2025 |
| 19961 | IRONS | Montague County, TX | Oil & Gas Property | Oct 2016 |
| 19962 | IRONWOOD | Frio County, TX | Oil & Gas Property | Nov 2025 |
| 19963 | IROQUOIS STATE UNIT | Reeves County, TX | Oil & Gas Property | Nov 2025 |
| 19964 | IRT 53 | Pecos County, TX | Oil Property | Nov 2025 |
| 19965 | IRT 6 | Pecos County, TX | Oil & Gas Property | Jul 2025 |
| 19966 | IRVIN | Jones County, TX | Oil & Gas Property | Nov 2025 |
| 19967 | IRVIN | Hardeman County, TX | Oil & Gas Property | Oct 2025 |
| 19968 | IRVIN | Taylor County, TX | Oil & Gas Property | May 2025 |
| 19969 | IRVIN | La Salle County, TX | Oil & Gas Property | Nov 2025 |
| 19970 | IRVIN "A" | Midland County, TX | Oil & Gas Property | Oct 2025 |
| 19971 | IRVIN F-G ALLOC | La Salle County, TX | Oil & Gas Property | Nov 2025 |
| 19972 | IRVIN F-G-IMN ALLOC | La Salle County, TX | Oil & Gas Property | Nov 2025 |
| 19973 | IRVIN FAMILY | La Salle County, TX | Oil & Gas Property | Nov 2025 |
| 19974 | IRVIN GAS UNIT | Freestone County, TX | Oil & Gas Property | Nov 2025 |
| 19975 | IRVIN H-I ALLOCATION | La Salle County, TX | Oil & Gas Property | Nov 2025 |
| 19976 | IRVIN MINERALS NORTH | La Salle County, TX | Oil & Gas Property | Nov 2025 |
| 19977 | IRVIN MINERALS SOUTH | La Salle County, TX | Oil & Gas Property | Nov 2025 |
| 19978 | IRVIN SISTERS | Ochiltree County, TX | Oil & Gas Property | Nov 2025 |
| 19979 | IRVIN-CONLEY "D" | Hardeman County, TX | Oil & Gas Property | Oct 2025 |
| 19980 | IRVINE | Parker County, TX | Oil & Gas Property | Nov 2025 |
| 19981 | IRVINE CHARLES | Navarro County, TX | Oil & Gas Property | Nov 2025 |
| 19982 | IRVINE UNIT 1H | Nacogdoches County, TX | Gas Property | Nov 2025 |
| 19983 | IRWIN | Medina County, TX | Oil & Gas Property | Nov 2025 |
| 19984 | IRWIN | Throckmorton County, TX | Oil & Gas Property | Nov 2025 |
| 19985 | IRWIN | Nacogdoches County, TX | Oil & Gas Property | Nov 2025 |
| 19986 | IRWIN A 1 | Leon County, TX | Oil & Gas Property | Nov 2025 |
| 19987 | IRWIN BEN | Nacogdoches County, TX | Oil & Gas Property | Nov 2025 |
| 19988 | IRWIN STANLEY | Throckmorton County, TX | Oil & Gas Property | Oct 2025 |
| 19989 | IRWIN, JOHN R | Medina County, TX | Oil & Gas Property | Jun 2013 |
| 19990 | ISAAC | Hardin County, TX | Oil & Gas Property | Nov 2025 |
| 19991 | ISAAC | Nacogdoches County, TX | Oil & Gas Property | Nov 2025 |
| 19992 | ISAACS | Roberts County, TX | Oil & Gas Property | Nov 2025 |
| 19993 | ISAACS | Hemphill County, TX | Oil & Gas Property | Nov 2025 |
| 19994 | ISAACS | Hemphill County, TX | Oil & Gas Property | Nov 2025 |
| 19995 | ISAACS DAVID Q | Hemphill County, TX | Oil & Gas Property | Nov 2025 |
| 19996 | ISAACS JOHN | Hemphill County, TX | Oil & Gas Property | Nov 2025 |
| 19997 | ISAACS-SIMPSON | Hemphill County, TX | Oil & Gas Property | Nov 2025 |
| 19998 | ISAAK | Karnes County, TX | Oil & Gas Property | Nov 2025 |
| 19999 | ISABEL | Ector County, TX | Oil & Gas Property | Nov 2025 |
| 20000 | ISABELLA | Gonzales County, TX | Oil & Gas Property | Apr 2003 |