| 401200 | Aug 19, 1992 | Aug 19, 1992 | Ultramar Oil and Gas Limited | Brazos | Riverside Campus #6H | 10,000 | 04131656 |
| 398742 | Apr 27, 1992 | Apr 27, 1992 | Ultramar Oil and Gas Limited | Fayette | Hoskins, Bobby #1H | 10,000 | 14932619 |
| 398244 | Apr 9, 1992 | Apr 9, 1992 | Ultramar Oil and Gas Limited | Brazos | Luza, Vince et Al #1H | 9,500 | 04131613 |
| 397996 | Apr 3, 1992 | Apr 3, 1992 | Ultramar Oil and Gas Limited | Sterling | Foster "34" #10 | 9,500 | 43132387 |
| 398001 | Apr 2, 1992 | Apr 2, 1992 | Ultramar Oil and Gas Limited | Sterling | Gunter "35" #8 | 9,500 | 43132390 |
| 398000 | Apr 2, 1992 | Apr 2, 1992 | Ultramar Oil and Gas Limited | Sterling | Gunter "35" #7 | 9,500 | 43132389 |
| 397999 | Apr 2, 1992 | Apr 2, 1992 | Ultramar Oil and Gas Limited | Sterling | Gunter "25" #5 | 9,500 | 43132388 |
| 397998 | Apr 2, 1992 | Apr 2, 1992 | Ultramar Oil and Gas Limited | Sterling | Glass "26" #4 | 9,500 | 43132385 |
| 397997 | Apr 2, 1992 | Apr 2, 1992 | Ultramar Oil and Gas Limited | Sterling | Foster "34" #9 | 9,500 | 43132386 |
| 397461 | Mar 12, 1992 | Mar 12, 1992 | Ultramar Oil and Gas Limited | Goliad | Perdido Land & Cattle Co. #1 | 6,000 | 17532647 |
| 396639 | Feb 20, 1992 | Feb 20, 1992 | Ultramar Oil and Gas Limited | Brazos | Kuder, Willie #2H | 10,000 | 04131464 |
| 396487 | Feb 10, 1992 | Feb 10, 1992 | Ultramar Oil and Gas Limited | Brazos | Riverside Campus #5H | 9,500 | 04131584 |
| 395347 | Dec 23, 1991 | Dec 23, 1991 | Ultramar Oil and Gas Limited | Fayette | Keilers Company, Inc. #1H | 10,000 | 14932566 |
| 395347Amendment | Dec 23, 1991 | Dec 23, 1991 | Ultramar Oil and Gas Limited | Fayette | Keilers Company, Inc. #1H | 10,000 | 14932566 |
| 394510 | Nov 27, 1991 | Nov 27, 1991 | Ultramar Oil and Gas Limited | Brazoria | Young, Baldwin Nash #1L | 10,502 | 03930767 |
| 393788 | Nov 8, 1991 | Nov 8, 1991 | Ultramar Oil and Gas Limited | Victoria | Dentler, Mary et Al #2 | 4,500 | 46932741 |
| 393091 | Oct 25, 1991 | Oct 25, 1991 | Ultramar Oil and Gas Limited | Brazos | Riverside Campus #4H | 9,000 | 04131543 |
| 393091Amendment | Oct 25, 1991 | Oct 25, 1991 | Ultramar Oil and Gas Limited | Brazos | Riverside Campus #4H | 9,000 | 04131543 |
| 392505 | Oct 7, 1991 | Oct 7, 1991 | Ultramar Oil and Gas Limited | Victoria | Dentler, Mary et Al #1 | 10,585 | 46932690 |
| 390663 | Aug 7, 1991 | Aug 7, 1991 | Ultramar Oil and Gas Limited | Brazoria | Riverside Campus #3 | 18,500 | 03932442 |
| 390663Amendment | Aug 7, 1991 | Aug 7, 1991 | Ultramar Oil and Gas Limited | Brazoria | Texaco Fee #1 | 18,500 | 03932442 |
| 390663Amendment | Aug 7, 1991 | Aug 7, 1991 | Ultramar Oil and Gas Limited | Brazoria | Texaco Fee #1 | 20,000 | 03932442 |
| 389785 | Jul 31, 1991 | Jul 31, 1991 | Ultramar Oil and Gas Limited | Brazos | Riverside Campus #3H | 8,500 | 04131512 |
| 388210 | May 22, 1991 | May 22, 1991 | Ultramar Oil and Gas Limited | Matagorda | State Tract 172 #1 | 4,700 | 32131656 |
| 388210Amendment | May 22, 1991 | May 22, 1991 | Ultramar Oil and Gas Limited | Matagorda | State Tract 172 #1 | 4,700 | 32131656 |
| 388146 | May 20, 1991 | May 20, 1991 | Ultramar Oil and Gas Limited | Brazos | Riverside Campus #2H | 8,500 | 04131504 |
| 388146Amendment | May 20, 1991 | May 20, 1991 | Ultramar Oil and Gas Limited | Brazos | Riverside Campus #2H | 8,500 | 04131504 |
| 387440 | May 3, 1991 | May 3, 1991 | Ultramar Oil and Gas Limited | Brazos | Riverside Campus #1H | 8,500 | 04131502 |
| 387440Amendment | May 3, 1991 | May 3, 1991 | Ultramar Oil and Gas Limited | Brazos | Riverside Campus #1H | 8,500 | 04131502 |
| 386236 | Apr 2, 1991 | Apr 2, 1991 | Ultramar Oil and Gas Limited | Victoria | Stockbauer, Albert Jr. #1 #1 | 17,500 | 46932845 |
| 385969Amendment | Mar 26, 1991 | Mar 26, 1991 | Ultramar Oil and Gas Limited | Jim Hogg | Alto Pasture #1ST | 10,000 | 24731941 |
| 385166 | Feb 27, 1991 | Feb 27, 1991 | Ultramar Oil and Gas Limited | Brazos | Kuder, Willie #1 | 8,500 | 04130714 |
| 384090 | Jan 31, 1991 | Jan 31, 1991 | Ultramar Oil and Gas Limited | Burleson | Rainbow #1H | 13,200 | 05133193 |
| 381431 | Nov 21, 1990 | Nov 21, 1990 | Ultramar Oil and Gas Limited | Brazoria | McGinnes, R. H. #1 | 16,500 | 03932415 |
| 381431Amendment | Nov 21, 1990 | Nov 21, 1990 | Ultramar Oil and Gas Limited | Brazoria | McGinnes, R. H. #1 | 17,500 | 03932415 |
| 380658 | Nov 6, 1990 | Nov 6, 1990 | Ultramar Oil and Gas Limited | Victoria | Dentler, Mary et Al #1 | 11,600 | 46932690 |
| 380525 | Oct 31, 1990 | Oct 31, 1990 | Ultramar Oil and Gas Limited | Victoria | Dentler, Mary et Al #2 | 4,500 | 46932741 |
| 380525Amendment | Oct 31, 1990 | Oct 31, 1990 | Ultramar Oil and Gas Limited | Victoria | Dentler, Mary et Al #2 | 4,500 | 46932741 |
| 380066Amendment | Oct 26, 1990 | Oct 26, 1990 | Ultramar Oil and Gas Limited | Burleson | Edwards, Lela #1H | 10,000 | 05133136 |
| 380047 | Oct 24, 1990 | Oct 24, 1990 | Ultramar Oil and Gas Limited | Brazoria | Esquivel, P. #1 | 14,000 | 03932412 |
| 379229 | Oct 17, 1990 | Oct 17, 1990 | Ultramar Oil and Gas Limited | Montgomery | Bayer, G. #1 | 10,000 | 33930852 |
| 378833 | Oct 4, 1990 | Oct 4, 1990 | Ultramar Oil and Gas Limited | Brazos | Kuder, Willie #2H | 8,871 | 04131464 |
| 377773 | Sep 17, 1990 | Sep 17, 1990 | Ultramar Oil and Gas Limited | Brazoria | Willy, John #1 | 17,500 | 03932407 |
| 377773Amendment | Sep 17, 1990 | Sep 17, 1990 | Ultramar Oil and Gas Limited | Brazoria | Willy, John #1 | 17,500 | 03932407 |
| 370842 | Mar 30, 1990 | Mar 30, 1990 | Ultramar Oil and Gas Limited | Victoria | Dentler, Mary et Al #2 | 4,500 | 46932741 |
| 371256 | Mar 21, 1990 | Mar 21, 1990 | Ultramar Oil and Gas Limited | Burleson | Marcy #1H | 9,300 | 05130961 |
| 371256Amendment | Mar 21, 1990 | Mar 21, 1990 | Ultramar Oil and Gas Limited | Burleson | Marcy #1H | 9,300 | 05130961 |
| 369234 | Jan 29, 1990 | Jan 29, 1990 | Ultramar Oil and Gas Limited | Grimes | Heath, Ory D. #3 | 9,850 | 18530382 |
| 368057 | Jan 2, 1990 | Jan 2, 1990 | Ultramar Oil and Gas Limited | Anderson | Hurford, Gary T. #1 | 12,500 | 00131957 |
| 366493 | Nov 17, 1989 | Nov 17, 1989 | Ultramar Oil and Gas Limited | Montgomery | Steele, N. Ruth #1 | 12,500 | 33930842 |
| 362670 | Aug 15, 1989 | Aug 15, 1989 | Ultramar Oil and Gas Limited | Victoria | Dentler, Mary et Al #1 | 13,500 | 46932690 |
| 353851Amendment | Feb 8, 1989 | Feb 8, 1989 | Ultramar Oil and Gas Limited | Madison | Triple N Inc. #1 | 9,308 | 31330666 |
| 355013 | Jan 10, 1989 | Jan 10, 1989 | Ultramar Oil and Gas Limited | Montgomery | Michel, et Al #1 | 13,000 | 33930825 |
| 355013Amendment | Jan 10, 1989 | Jan 10, 1989 | Ultramar Oil and Gas Limited | Montgomery | Michel, et Al #1 | 13,000 | 33930825 |
| 346352 | May 9, 1988 | May 9, 1988 | Ultramar Oil and Gas Limited | Victoria | Thompson, Berlin R. #2L | 6,013 | 46932133 |
| 338025 | Oct 28, 1987 | Oct 28, 1987 | Ultramar Oil and Gas Limited | Gaines | Jones Estate #1 | 12,000 | 16533788 |
| 337458 | Oct 19, 1987 | Oct 19, 1987 | Ultramar Oil and Gas Limited | Brazoria | Peterson #1 | 14,200 | 03932236 |
| 335643 | Sep 10, 1987 | Sep 10, 1987 | Ultramar Oil and Gas Limited | Gaines | Strauch, Lucy L. #1 | 13,100 | 16533748 |
| 335643Amendment | Sep 10, 1987 | Sep 10, 1987 | Ultramar Oil and Gas Limited | Gaines | Strauch, Lucy L. #1 | 13,100 | 16533748 |
| 329088 | Apr 22, 1987 | Apr 22, 1987 | Ultramar Oil and Gas Limited | Panola | Sealy, Jim G. #2 | 7,700 | 36531449 |
| 329082 | Apr 22, 1987 | Apr 22, 1987 | Ultramar Oil and Gas Limited | Galveston-LB | State Lease 92343 #1 | 14,500 | 70630205 |
| 329082Amendment | Apr 22, 1987 | Apr 22, 1987 | Ultramar Oil and Gas Limited | Galveston-LB | State Lease 92343 #1 | 14,000 | 70630205 |
| 320791 | Sep 23, 1986 | Sep 23, 1986 | Ultramar Oil and Gas Limited | Galveston | State Tract 176 #1 | 14,500 | 16731119 |
| 299451 | Mar 11, 1986 | Mar 11, 1986 | Ultramar Oil and Gas Limited | Panola | Sealey, Jim G #3 | 6,900 | 36531472 |
| 292616 | Dec 12, 1985 | Dec 12, 1985 | Ultramar Oil and Gas Limited | Duval | Hubbard, William H. #2 | 7,000 | 13136856 |
| 292176 | Nov 27, 1985 | Nov 27, 1985 | Ultramar Oil and Gas Limited | Duval | SW Texas Corp. #1 | 10,500 | 13136851 |
| 290988 | Nov 25, 1985 | Nov 25, 1985 | Ultramar Oil and Gas Limited | Travis | Thrasher, L. D. #1 | 1,500 | 45330331 |
| 288682 | Oct 28, 1985 | Oct 28, 1985 | Ultramar Oil and Gas Limited | Lynn | Wuensche, M. W. #1 | 10,000 | 30530374 |
| 286875 | Oct 9, 1985 | Oct 9, 1985 | Ultramar Oil and Gas Limited | Duval | Hubbard, William H. #1 | 12,000 | 13136806 |
| 282641 | Aug 19, 1985 | Aug 19, 1985 | Ultramar Oil and Gas Limited | Milam | Rodenbeck, Martha #1 | 2,000 | 33132949 |
| 272464 | Apr 16, 1985 | Apr 16, 1985 | Ultramar Oil and Gas Limited | Midland | Oldham, Ida Mae #1 | 12,000 | 32931510 |
| 266744 | Feb 12, 1985 | Feb 12, 1985 | Ultramar Oil and Gas Limited | Victoria | Thompson, B. R. #3 | 3,270 | 46932178 |
| 261287 | Dec 17, 1984 | Dec 17, 1984 | Ultramar Oil and Gas Limited | Victoria | Thompson, Berlin R. #5 | 3,150 | 46932261 |
| 260189 | Dec 6, 1984 | Dec 6, 1984 | Ultramar Oil and Gas Limited | Galveston-LB | State Lease 89563 #1 | 12,500 | 70630199 |
| 256750 | Nov 6, 1984 | Nov 6, 1984 | Ultramar Oil and Gas Limited | San Patricio | Bullard #1 | 8,810 | 40930541 |
| 248480 | Aug 15, 1984 | Aug 15, 1984 | Ultramar Oil and Gas Limited | Victoria | Thompson, Berlin R. et Al #2 | 6,013 | 46932133 |
| 246768 | Jul 23, 1984 | Jul 23, 1984 | Ultramar Oil and Gas Limited | Victoria | Vaughn, Mary Ann #1 | 7,000 | 46932260 |
| 244414 | Jul 9, 1984 | Jul 9, 1984 | Ultramar Oil and Gas Limited | Victoria | Thompson, Berlin R. #6 | 4,000 | 46932264 |
| 243439 | Jun 28, 1984 | Jun 28, 1984 | Ultramar Oil and Gas Limited | Victoria | Thompson, Berlin R. #5 | 4,000 | 46932261 |
| 243179 | Jun 25, 1984 | Jun 25, 1984 | Ultramar Oil and Gas Limited | Harris | Bartle #1 | 7,600 | 20131778 |
| 238461 | May 10, 1984 | May 10, 1984 | Ultramar Oil and Gas Limited | Victoria | Thompson, Berlin R. #4 | 1,800 | 46932233 |
| 237923 | May 7, 1984 | May 7, 1984 | Ultramar Oil and Gas Limited | Shelby | Buckner, Oneta #1 | 10,500 | 41930489 |
| 232294 | Mar 13, 1984 | Mar 13, 1984 | Ultramar Oil and Gas Limited | Atascosa | Eisenhauer, Clifford #2 | 5,900 | 01332612 |
| 230126 | Feb 22, 1984 | Feb 22, 1984 | Ultramar Oil and Gas Limited | Victoria | Thompson, Berlin R. #3 | 6,500 | 46932178 |
| 229396 | Feb 14, 1984 | Feb 14, 1984 | Ultramar Oil and Gas Limited | Atascosa | Eisenhauer, Clifford #1 | 5,600 | 01332559 |
| 229398 | Feb 14, 1984 | Feb 14, 1984 | Ultramar Oil and Gas Limited | Atascosa | Eisenhauer, Bennie E. #1 | 5,600 | 01332560 |
| 224240 | Dec 19, 1983 | Dec 19, 1983 | Ultramar Oil and Gas Limited | Victoria | Johnston, R. H. Jr. #1 | 16,000 | 46932154 |
| 216053 | Sep 8, 1983 | Sep 8, 1983 | Ultramar Petroleum Limited | Atascosa | Eisenhauer, Erhard #1 | 5,350 | 01332102 |