| 399164 | May 18, 1992 | May 18, 1992 | MW Petroleum Corporation | Gas Unit a / Zone 3 #4 | 9,917 | 48920019 |
| 399317 | May 14, 1992 | May 14, 1992 | MW Petroleum Corporation | Gas Unit a Zone 8 #5 | 10,500 | 48930939 |
| 399317Amendment | May 14, 1992 | May 14, 1992 | MW Petroleum Corporation | Gas Unit a Zone 4 #4 | 9,380 | 48930939 |
| 397761 | Apr 14, 1992 | Apr 14, 1992 | Exxon Corp. | Bell, S. H. 'B' #4 | 9,000 | 48930597 |
| 397761Amendment | Apr 14, 1992 | Apr 14, 1992 | Exxon Corp. | Bell, S. H. 'B' #4 | 9,000 | 48930597 |
| 397551 | Mar 16, 1992 | Mar 16, 1992 | Hanson Minerals Co. | Mackey #1 | 15,000 | 48930938 |
| 397551Amendment | Mar 16, 1992 | Mar 16, 1992 | Hanson Minerals Co. | Mackey #1 | 16,000 | 48930938 |
| 396385 | Mar 13, 1992 | Mar 13, 1992 | Bettis, Boyle & Stovall | Todd #1 | 4,780 | 48930616 |
| 397040 | Mar 5, 1992 | Mar 5, 1992 | Citation Oil & Gas Corp. | Willamar West Unit #64A | 8,200 | 48930936 |
| 397038 | Mar 5, 1992 | Mar 5, 1992 | Citation Oil & Gas Corp. | Willamar East Unit #27 | 8,000 | 48930937 |
| 396672 | Feb 20, 1992 | Feb 20, 1992 | Exxon Corp. | Bell, S.H. 'B' #6 | 6,250 | 48930625 |
| 396672Amendment | Feb 20, 1992 | Feb 20, 1992 | Exxon Corp. | Bell, S.H. 'B' #6 | 6,250 | 48930625 |
| 396566 | Feb 14, 1992 | Feb 14, 1992 | Exxon Corp. | Bell, S.H. 'B' #5 | 7,906 | 48930604 |
| 395836 | Jan 28, 1992 | Jan 28, 1992 | Milo Petroleum Company | Pollock Gas Unit #1 | 11,600 | 48930707 |
| 395099 | Dec 19, 1991 | Dec 19, 1991 | Citation Oil & Gas Corp. | Willamar West Unit #70 | 7,984 | 48980122 |
| 395097 | Dec 19, 1991 | Dec 19, 1991 | Citation Oil & Gas Corp. | Willamar West Unit #126 | 7,959 | 48930027 |
| 394530 | Dec 2, 1991 | Dec 2, 1991 | Reef Exploration, Inc. (A-1) | Richmond, Angelene #1 | 7,400 | 48930935 |
| 392924 | Nov 18, 1991 | Nov 18, 1991 | Maynard Oil Co. | Yturria Cattle Company #24 | 3,480 | 48930677 |
| 392967 | Oct 16, 1991 | Oct 16, 1991 | Exxon Corp. | Kleberg, R. J. Jr. Tr. Stillman #85 | 14,250 | 48930928 |
| 392346 | Sep 30, 1991 | Sep 30, 1991 | Lone Star Exploration, Inc | Cavazos, R. #3 | 5,800 | 48930934 |
| 392346Amendment | Sep 30, 1991 | Sep 30, 1991 | API Operating Co. | Cavazos, Rogerio #3 | 5,448 | 48930934 |
| 392255 | Sep 26, 1991 | Sep 26, 1991 | Exxon Corp. | Sauz Ranch Mulatos Pasture #162 | 8,400 | 48930629 |
| 390507 | Aug 6, 1991 | Aug 6, 1991 | Hanson Minerals Co. | Yturria #1A | 14,000 | 48930933 |
| 389335 | Jun 26, 1991 | Jun 26, 1991 | Exxon Corp. | Kleberg, R.J., Stillman Jr.tr. #76 | 15,400 | 48930932 |
| 389335Amendment | Jun 26, 1991 | Jun 26, 1991 | Exxon Corp. | Kleberg, R.J., Stillman Jr.tr. #76 | 15,400 | 48930932 |
| 388645 | Jun 10, 1991 | Jun 10, 1991 | Citation Oil & Gas Corp. | Willamar West Unit #171 | 7,858 | 48930756 |
| 388644 | Jun 10, 1991 | Jun 10, 1991 | Citation Oil & Gas Corp. | Willamar West Miocene Unit "M" #23 | 7,970 | 48900230 |
| 388231 | May 28, 1991 | May 28, 1991 | Texaco E & P Inc. | Yturria L & L Co. -a- NCT-1 #25F | 7,615 | 48900628 |
| 388093 | May 20, 1991 | May 20, 1991 | Fossil Exploration, Inc. | R. Cavazos et al Unit #2 | 5,800 | 48930931 |
| 387496 | May 6, 1991 | May 6, 1991 | Franklin, J.W. Oil Operator | Yturria Cattle Co #1 | 5,620 | 48930687 |
| 387239 | Apr 29, 1991 | Apr 29, 1991 | Franklin, J.W. Oil Operator | Yturria Cattle Co. #5 | 5,610 | 48930693 |
| 384696 | Feb 15, 1991 | Feb 15, 1991 | Citation Oil & Gas Corp. | Willamar Community "E" #7 | 6,735 | 48930853 |
| 383035 | Jan 16, 1991 | Jan 16, 1991 | Mobil Producing TX. & N.M. Inc. | Rectifer #1 | 250 | 48930930 |
| 383122 | Jan 15, 1991 | Jan 15, 1991 | Texaco Inc. | Yturria L & C Co. NCT-2 #45 | 6,560 | 48930059 |
| 377973 | Sep 19, 1990 | Sep 19, 1990 | Exxon Corp. | Kleberg, R. J. Jr. Tr. Stillman #85 | 15,500 | 48930928 |
| 378143 | Sep 18, 1990 | Sep 18, 1990 | Hanson Minerals Co. | Yturria #1 | 13,500 | 48930929 |
| 376208 | Aug 10, 1990 | Aug 10, 1990 | Exxon Corp. | Thomas, M. G. et Al #3 | 14,700 | 48930927 |
| 374475 | Jun 25, 1990 | Jun 25, 1990 | Citation Oil & Gas Corp. | Willamar West Unit #148 | 8,150 | 48930722 |
| 374476 | Jun 18, 1990 | Jun 18, 1990 | Citation Oil & Gas Corp. | Willamar West Unit #9 | 8,051 | 48900260 |
| 372098 | Jun 4, 1990 | Jun 4, 1990 | Maynard Oil Co. | Yturria Cattle Company #23 | 6,210 | 48930675 |
| 372098Amendment | Jun 4, 1990 | Jun 4, 1990 | Maynard Oil Co. | Yturria Cattle Company #23 | 6,210 | 48930675 |
| 372099 | Apr 20, 1990 | Apr 20, 1990 | Maynard Oil Co. | Yturria Cattle Company #24 | 6,200 | 48930677 |
| 372082 | Apr 11, 1990 | Apr 11, 1990 | Citation Oil & Gas Corp. | Willamar West Unit #14 | 8,034 | 48900296 |
| 372081 | Apr 11, 1990 | Apr 11, 1990 | Citation Oil & Gas Corp. | Willamar West Unit #7 | 8,010 | 48900257 |
| 370408 | Mar 5, 1990 | Mar 5, 1990 | Texaco Inc. | Yturria L&L Co. -a- NCT-1 #25F | 7,615 | 48900628 |
| 370400 | Feb 28, 1990 | Feb 28, 1990 | Citation Oil & Gas Corp. | Willamar West Unit #67A | 8,200 | 48930926 |
| 370327 | Feb 28, 1990 | Feb 28, 1990 | Exxon Corp. | Sauz Ranch Mulatos Pasture #172 | 6,400 | 48930665 |
| 368207 | Jan 4, 1990 | Jan 4, 1990 | Exxon Corp. | Thomas, M. G. et Al #2 | 15,300 | 48930925 |
| 366669 | Nov 27, 1989 | Nov 27, 1989 | Maynard Oil Co. | Yturria Cattle Company #3 | 6,815 | 48900012 |
| 366212 | Nov 14, 1989 | Nov 14, 1989 | Exxon Corp. | Sauz Ranch Mulatos Pasture #185 | 9,100 | 48930846 |
| 362402 | Aug 14, 1989 | Aug 14, 1989 | Maynard Oil Co. | Yturria Cattle Company #24 | 6,200 | 48930677 |
| 362213 | Aug 7, 1989 | Aug 7, 1989 | Exxon Corp. | Sauz Ranch Mulatos Pasture #185 | 9,100 | 48930846 |
| 362218 | Aug 3, 1989 | Aug 3, 1989 | Exxon Corp. | Kleberg, R. J. Jr. Tr. Stillman #84 | 18,500 | 48930917 |
| 361958 | Jul 27, 1989 | Jul 27, 1989 | Whittington Operating Company | Parham, Ellie #1A | 6,200 | 48930924 |
| 360628 | Jun 29, 1989 | Jun 29, 1989 | Exxon Corp. | Thomas, M. G. et Al #1 | 15,300 | 48930923 |
| 357333 | Apr 12, 1989 | Apr 12, 1989 | Amoco Production Company | Hodge, Estella #7 | 8,500 | 48900563 |
| 357333Amendment | Apr 12, 1989 | Apr 12, 1989 | Amoco Production Company | Hodge, Estella #7 | 9,200 | 48900563 |
| 357376 | Mar 27, 1989 | Mar 27, 1989 | Maynard Oil Co. | Yturria Cattle Co. "C" #1 | 7,620 | 48900637 |
| 356968 | Mar 22, 1989 | Mar 22, 1989 | Maynard Oil Co. | Yturria Cattle Company #22 | 6,210 | 48930671 |
| 356230 | Feb 22, 1989 | Feb 22, 1989 | Maynard Oil Co. | Yturria Cattle Company #3 | 6,815 | 48900012 |
| 355322 | Jan 23, 1989 | Jan 23, 1989 | Corpus Christi Oil & Gas Co. | Yturria Land & Cattle #1 | 11,500 | 48930921 |
| 355387 | Jan 20, 1989 | Jan 20, 1989 | Exxon Corp. | Frank D. Yturria Tr. et at U. 1 #1 | 15,000 | 48930922 |
| 354285 | Dec 14, 1988 | Dec 14, 1988 | Neuhaus, V. F. Properties | Fox, Gorman et Al #1 | 7,887 | 48900381 |
| 354016 | Dec 8, 1988 | Dec 8, 1988 | Amoco Production Company | Willamar West Miocene Unit #11 | 8,056 | 48900258 |
| 352604 | Nov 28, 1988 | Nov 28, 1988 | Mabee Petroleum Corp. | Yturria Cattle Co. #24 | 6,200 | 48930677 |
| 353093 | Nov 8, 1988 | Nov 8, 1988 | Amoco Production Company | La Sal Vieja Gas Unit #2 | 11,500 | 48930584 |
| 352826 | Nov 2, 1988 | Nov 2, 1988 | Amoco Production Company | Gas Unit "a" Zone 4 #3 | 9,917 | 48920019 |
| 352735 | Oct 31, 1988 | Oct 31, 1988 | Amoco Production Company | Clarence Oberg Gas Unit #1 | 14,348 | 48900521 |
| 351625 | Oct 21, 1988 | Oct 21, 1988 | Amoco Production Company | Willimar West Micoene 6400 Unit #24 | 8,100 | 48930727 |
| 352370 | Oct 18, 1988 | Oct 18, 1988 | Clay Energy | Jaehne, Laverne H. #1 | 10,300 | 48930683 |
| 351901 | Oct 4, 1988 | Oct 4, 1988 | Exxon Corp. | Sauz Ranch Mulatos Pasture #183 | 9,100 | 48930845 |
| 351626 | Sep 27, 1988 | Sep 27, 1988 | Amoco Production Company | Willamar West/Miocene Unit #23 | 7,970 | 48900230 |
| 350661 | Sep 2, 1988 | Sep 2, 1988 | Exxon Corp. | Sauz Ranch Mulatos Pasture #45 | 7,981 | 48900151 |
| 350641 | Aug 30, 1988 | Aug 30, 1988 | Speyrer Oil & Gas, Inc. | Fox, Gorman et Al #1 | 8,500 | 48930920 |
| 350156 | Aug 16, 1988 | Aug 16, 1988 | Texaco Inc. | Yturria L & L Co. -A-NCT-1 #25F | 7,615 | 48900628 |
| 349489 | Aug 9, 1988 | Aug 9, 1988 | Tasca Exploration Company | Cavazos Etal Unit #1 | 8,000 | 48930916 |
| 348532 | Jul 7, 1988 | Jul 7, 1988 | Hughes, Dan A. Company | Hawk Island Gas Unit #1 | 11,000 | 48930919 |
| 348548 | Jul 6, 1988 | Jul 6, 1988 | Exxon Corp. | Kleberg, R. J. Jr. Tr. Stillman #8 | 10,650 | 48900552 |
| 347753 | Jun 15, 1988 | Jun 15, 1988 | Exxon Corp. | Sauz Ranch Mulatos Pasture #122 | 8,000 | 48900128 |
| 347618 | Jun 13, 1988 | Jun 13, 1988 | Exxon Corp. | Sauz Ranch Mulatos Pasture #51 | 7,953 | 48900142 |
| 347307 | Jun 7, 1988 | Jun 7, 1988 | Exxon Corp. | Sauz Ranch Mulatos Pasture #205 | 8,100 | 48930874 |
| 345549 | Apr 25, 1988 | Apr 25, 1988 | Texaco Inc. | Yturria L & L Co. -a- NCT-1 #25F | 7,615 | 48900628 |
| 345206 | Apr 19, 1988 | Apr 19, 1988 | Exxon Corp. | Kleberg, R.j.jr.tr.stillman Past #70 | 9,950 | 48930741 |
| 343958 | Mar 17, 1988 | Mar 17, 1988 | Exxon Corp. | Sauz Ranch Mulatos Pasture #170 | 6,800 | 48930652 |
| 343927 | Mar 17, 1988 | Mar 17, 1988 | Exxon Corp. | Sauz Ranch Mulatos Pasture #26 | 7,950 | 48900192 |
| 342878 | Feb 22, 1988 | Feb 22, 1988 | Exxon Corp. | Sauz Ranch Mulatos Pasture #172 | 6,400 | 48930665 |
| 342788 | Feb 18, 1988 | Feb 18, 1988 | Exxon Corp. | Sauz Ranch Mulatos Pasture #165 | 8,100 | 48930635 |
| 342755 | Feb 18, 1988 | Feb 18, 1988 | Hada, J. L., Jr. | Yturria Cattle Co. #2 | 7,000 | 48930910 |
| 342368 | Feb 9, 1988 | Feb 9, 1988 | Exxon Corp. | Kleberg, R. J. Jr. Tr. Stillman #77 | 11,250 | 48930831 |
| 340364 | Dec 18, 1987 | Dec 18, 1987 | Texaco Inc. | Yturria L & C Co. NCT-2 #54 | 9,500 | 48930918 |
| 340300 | Dec 18, 1987 | Dec 18, 1987 | Fargo Trading Co., Inc. | Yturria Cattle Co. #5 | 5,610 | 48930693 |
| 339064 | Nov 23, 1987 | Nov 23, 1987 | Exxon Corp. | Bell, S. H. "B" #4 | 9,000 | 48930597 |
| 338957 | Nov 19, 1987 | Nov 19, 1987 | Amoco Production Company | Willamar West Miocene Unit #M 11 | 8,056 | 48900258 |
| 338684 | Nov 12, 1987 | Nov 12, 1987 | Amoco Production Company | Willamar West Miocene Unit #M 18 | 6,500 | 48930829 |
| 338244 | Nov 5, 1987 | Nov 5, 1987 | Fargo Trading Co., Inc. | Yturria Cattle Co. #4B | 3,400 | 48900011 |
| 335518 | Oct 5, 1987 | Oct 5, 1987 | Mitchell Energy Corporation | Baughman, M. A. #1 | 11,500 | 48930116 |
| 335416 | Sep 3, 1987 | Sep 3, 1987 | Texaco Inc. | Yturria L & C Co. NCT-2 #27 | 7,650 | 48900621 |
| 333416 | Jul 28, 1987 | Jul 28, 1987 | Mabee Petroleum Corp. | Yturria Cattle Company #3 | 6,815 | 48900012 |
| 333357 | Jul 28, 1987 | Jul 28, 1987 | Milo Petroleum Company | Pollock, J. B. #1 | 11,600 | 48930707 |
| 332727 | Jul 13, 1987 | Jul 13, 1987 | Tasca Exploration Company | R. Cavazos et al Unit #1 | 8,000 | 48930916 |