| 465150 | Jul 21, 1997 | Jul 21, 1997 | Exxon Corp. | McGill Bros. #367 | 5,780 | 04701605 |
| 464999 | Jul 16, 1997 | Jul 16, 1997 | Exxon Corp. | McGill Bros. #379 | 4,912 | 04701602 |
| 464999Amendment | Jul 16, 1997 | Jul 16, 1997 | Exxon Corp. | McGill Bros. #379 | 4,912 | 04701602 |
| 464998 | Jul 16, 1997 | Jul 16, 1997 | Exxon Corp. | McGill Bros. #314 | 5,412 | 04701085 |
| 464927 | Jul 15, 1997 | Jul 15, 1997 | Maguire Oil Company | Rupp #5 | 8,463 | 04731510 |
| 464923 | Jul 15, 1997 | Jul 15, 1997 | Exxon Corp. | McGill Bros. #397 | 6,420 | 04701650 |
| 464671 | Jul 8, 1997 | Jul 8, 1997 | OXY USA Inc. | Cage Ranch II #7092 | 9,400 | 04731775 |
| 464671Amendment | Jul 8, 1997 | Jul 8, 1997 | OXY USA Inc. | Cage Ranch II #7092 | 9,400 | 04731775 |
| 464553 | Jul 3, 1997 | Jul 3, 1997 | Maguire Oil Company | Sullivan Deep "B" #1 | 11,000 | 04731774 |
| 464553Amendment | Jul 3, 1997 | Jul 3, 1997 | Maguire Oil Company | Sullivan Deep "B" #1 | 11,000 | 04731774 |
| 464525 | Jul 2, 1997 | Jul 2, 1997 | OXY USA Inc. | Cage Ranch #7073 | 8,000 | 04731723 |
| 464525Amendment | Jul 2, 1997 | Jul 2, 1997 | OXY USA Inc. | Cage Ranch I #7073 | 8,000 | 04731723 |
| 464406 | Jun 30, 1997 | Jun 30, 1997 | Exxon Corp. | Kleberg, R.J. Jr TR Viboras Pas. #128 | 8,910 | 04731456 |
| 464372 | Jun 27, 1997 | Jun 27, 1997 | Exxon Corp. | Kleberg, R.j.jr.tr.zach Past. St #21 | 10,894 | 04731728 |
| 464371 | Jun 27, 1997 | Jun 27, 1997 | Exxon Corp. | Kleberg, R.j.jr.tr.viboras Pas #136 | 7,193 | 04731540 |
| 464021 | Jun 24, 1997 | Jun 24, 1997 | Exxon Corp. | McGill Bros. #414 | 7,720 | 04730001 |
| 463990 | Jun 19, 1997 | Jun 19, 1997 | Exxon Corp. | Kleberg, R.j.jr.tr.viboras Pas #21 | 7,604 | 04701260 |
| 463705 | Jun 12, 1997 | Jun 12, 1997 | OXY USA Inc. | Cage Ranch #6032 | 8,100 | 04731772 |
| 463285 | Jun 4, 1997 | Jun 4, 1997 | Exxon Corp. | McGill Bros. #549 | 10,000 | 04731771 |
| 463285Amendment | Jun 4, 1997 | Jun 4, 1997 | Exxon Corp. | McGill Bros. #549 | 10,000 | 04731771 |
| 463154 | Jun 2, 1997 | Jun 2, 1997 | OXY USA Inc. | Cage Ranch #6031 | 8,100 | 04731770 |
| 462884 | May 30, 1997 | May 30, 1997 | Gaither Petroleum Corporation | Mills Bennett Estate Fee #59 | 5,000 | 04731767 |
| 463022 | May 29, 1997 | May 29, 1997 | Mestena, Inc. | Leoncito #51 | 3,600 | 04701513 |
| 463004 | May 28, 1997 | May 28, 1997 | Maguire Oil Company | Sullivan "V" #1 | 10,000 | 04731768 |
| 462913 | May 27, 1997 | May 27, 1997 | Exxon Corp. | Dawson, James H #1 | 6,892 | 04730228 |
| 462504 | May 19, 1997 | May 19, 1997 | Texaco E & P Inc. | Lopez, G. G. #5 | 10,200 | 04731766 |
| 462205 | May 9, 1997 | May 9, 1997 | Texaco E & P Inc. | Lopez, G. G. #6 | 10,200 | 04731765 |
| 462185 | May 8, 1997 | May 8, 1997 | Gaither Petroleum Corporation | Mills Bennett Estate Fee #60 | 9,000 | 04731764 |
| 461933 | May 5, 1997 | May 5, 1997 | Maguire Oil Company | Perez "A" #1 | 9,500 | 04731763 |
| 461932 | May 5, 1997 | May 5, 1997 | Shell Western E&P Inc. | Lips, Barbara "C" (Ecr) #10 | 10,000 | 04731670 |
| 461932Amendment | May 5, 1997 | May 5, 1997 | Shell Western E&P Inc. | Lips, Barbara "C" (Ecr) #10 | 10,750 | 04731670 |
| 461274 | Apr 25, 1997 | Apr 25, 1997 | Exxon Corp. | Kleberg, RJ Jr.tr. Quiteria Past #71 | 7,095 | 04730140 |
| 461208 | Apr 25, 1997 | Apr 25, 1997 | Manti Operating Company | Scott & Hopper #52 | 9,500 | 04731760 |
| 461208Amendment | Apr 25, 1997 | Apr 25, 1997 | Manti Operating Company | Scott & Hopper #52 | 9,500 | 04731760 |
| 461194 | Apr 23, 1997 | Apr 23, 1997 | Exxon Corp. | Kleberg, R J Jr.tr. Viboras Past #112 | 8,808 | 04731237 |
| 461207 | Apr 22, 1997 | Apr 22, 1997 | Manti Operating Company | Sullivan, D. J. -B- #106 | 5,000 | 04731759 |
| 461307 | Apr 18, 1997 | Apr 18, 1997 | OXY USA Inc. | Cage Ranch 710 #2A | 8,300 | 04731762 |
| 461307Amendment | Apr 18, 1997 | Apr 18, 1997 | OXY USA Inc. | Cage Ranch 710 #2A | 8,300 | 04731762 |
| 461303 | Apr 18, 1997 | Apr 18, 1997 | Texaco E & P Inc. | McGill Bros. NCT-1 #83 | 16,000 | 04731761 |
| 461303Amendment | Apr 18, 1997 | Apr 18, 1997 | Texaco E & P Inc. | McGill Bros. NCT-1 #83 | 16,000 | 04731761 |
| 461303Amendment | Apr 18, 1997 | Apr 18, 1997 | Texaco E & P Inc. | McGill Bros. NCT-1 #83 | 16,000 | 04731761 |
| 460993 | Apr 17, 1997 | Apr 17, 1997 | Manti Operating Company | Sullivan, D.J. -B- #103 | 9,000 | 04731757 |
| 460992 | Apr 17, 1997 | Apr 17, 1997 | Manti Operating Company | Sullivan, D.J. -B- #104 | 9,000 | 04731758 |
| 460992Amendment | Apr 17, 1997 | Apr 17, 1997 | Manti Operating Company | Sullivan, D. J. -B- #104 | 8,190 | 04731758 |
| 460958 | Apr 16, 1997 | Apr 16, 1997 | Exxon Corp. | Viboras Field Gas Unit No. 1 #V142 | 12,500 | 04731756 |
| 460906 | Apr 10, 1997 | Apr 10, 1997 | Texaco E & P Inc. | McGill Bros. NCT-1 #84 | 10,800 | 04731755 |
| 460385 | Apr 3, 1997 | Apr 3, 1997 | Exxon Corp. | Kelsey Unit #M516 | 4,788 | 04731444 |
| 460495 | Apr 2, 1997 | Apr 2, 1997 | Exxon Corp. | Kleberg, R.j.jr.tr.zach Past.st. #19 | 10,040 | 04731754 |
| 460495Amendment | Apr 2, 1997 | Apr 2, 1997 | Exxon Corp. | Kleberg, R.j.jr.tr.zach Past.st. #19 | 10,300 | 04731754 |
| 460495Amendment | Apr 2, 1997 | Apr 2, 1997 | Exxon Corp. | Kleberg, R.j.jr.tr.zach Past.st. #19 | 11,000 | 04731754 |
| 460417 | Mar 27, 1997 | Mar 27, 1997 | Exxon Corp. | Kleberg, R.j.jr.tr. Zach Past.st #22 | 11,000 | 04731753 |
| 460417Amendment | Mar 27, 1997 | Mar 27, 1997 | Exxon Corp. | Kleberg, R.j.jr.tr.zach Past.st. #22 | 11,400 | 04731753 |
| 460417Amendment | Mar 27, 1997 | Mar 27, 1997 | Exxon Corp. | Kleberg, R.j.jr.tr.zach Past.st. #22 | 11,400 | 04731753 |
| 460152 | Mar 20, 1997 | Mar 20, 1997 | Texaco E & P Inc. | Lopez, G.G. #2 | 8,560 | 04701461 |
| 459824 | Mar 14, 1997 | Mar 14, 1997 | Exxon Corp. | McGill Bros. #460 | 6,046 | 04730881 |
| 459772 | Mar 11, 1997 | Mar 11, 1997 | Gaither Petroleum Corporation | Mills Bennett Estate Fee #30 | 5,864 | 04700411 |
| 459761 | Mar 11, 1997 | Mar 11, 1997 | Anderson Oil Corporation | Garza, F. #1 | 7,915 | 04701477 |
| 459352 | Mar 3, 1997 | Mar 3, 1997 | Gaither Petroleum Corporation | Mills Bennett Estate Fee #1 | 8,400 | 04731645 |
| 459352Amendment | Mar 3, 1997 | Mar 3, 1997 | Gaither Petroleum Corporation | Mills Bennett Estate Fee #1NC | 8,400 | 04731645 |
| 458752 | Feb 28, 1997 | Feb 28, 1997 | Manti Operating Company | Sullivan, D.J. -B- #80F | 7,229 | 04731385 |
| 458985 | Feb 24, 1997 | Feb 24, 1997 | Texaco E & P Inc. | McGill Bros. NCT-1 #82 | 10,800 | 04731752 |
| 458757 | Feb 18, 1997 | Feb 18, 1997 | Texaco E & P Inc. | McGill Bros. NCT - 1 #74 | 10,000 | 04731709 |
| 458646 | Feb 14, 1997 | Feb 14, 1997 | Exxon Corp. | Kleberg,r.j.jr.tr.viboras Past #75 | 7,104 | 04730653 |
| 458645 | Feb 14, 1997 | Feb 14, 1997 | Exxon Corp. | McGill Bros. #375 | 4,902 | 04701596 |
| 458644 | Feb 14, 1997 | Feb 14, 1997 | Exxon Corp. | King Ranch Laguna Larga #27 | 8,951 | 04730955 |
| 458087 | Jan 31, 1997 | Jan 31, 1997 | Texaco E & P Inc. | McGill Bros. NCT -1 #35 | 8,760 | 04701458 |
| 457794 | Jan 28, 1997 | Jan 28, 1997 | Cotton, W.L. Gems & Minerals Ltd | Trad/Kalifa #3 | 8,500 | 04731751 |
| 456924 | Jan 15, 1997 | Jan 15, 1997 | Manti Operating Company | Amado Trad Gas Unit #1 #1 | 7,500 | 04731750 |
| 456924Amendment | Jan 15, 1997 | Jan 15, 1997 | Manti Operating Company | Amado Trad Gas Unit #1 #1 | 7,500 | 04731750 |
| 457084 | Jan 7, 1997 | Jan 7, 1997 | Maguire Oil Company | Rupp "B" #1 | 9,050 | 04731718 |
| 456359 | Dec 16, 1996 | Dec 16, 1996 | Exxon Corp. | Kleberg, R.j.jr.tr.quiteria Pas #33 | 6,847 | 04701286 |
| 456207 | Dec 12, 1996 | Dec 12, 1996 | Maguire Oil Company | Sullivan Deep "A" #1 | 15,000 | 04731749 |
| 456121 | Dec 10, 1996 | Dec 10, 1996 | Suemaur Exploration, Inc. | Cage Ranch II #2710 | 8,500 | 04731748 |
| 455928 | Dec 5, 1996 | Dec 5, 1996 | Maguire Oil Company | Rupp High #1 | 8,700 | 04731696 |
| 455928Amendment | Dec 5, 1996 | Dec 5, 1996 | Maguire Oil Company | Rupp High #1 | 8,700 | 04731696 |
| 455838 | Dec 3, 1996 | Dec 3, 1996 | Maguire Oil Company | Rupp #8 | 10,000 | 04731747 |
| 455368 | Dec 2, 1996 | Dec 2, 1996 | Manti Operating Company | Scott & Hopper Gas Unit #1 #3D | 8,949 | 04731421 |
| 455339 | Nov 21, 1996 | Nov 21, 1996 | Texaco E & P Inc. | McGill Bros. NCT-1 #81 | 10,800 | 04731745 |
| 455339Amendment | Nov 21, 1996 | Nov 21, 1996 | Texaco E & P Inc. | McGill Bros. NCT-1 #81 | 10,800 | 04731745 |
| 454063 | Nov 20, 1996 | Nov 20, 1996 | Manti Operating Company | Sullivan, D.J. "B" #85F | 8,595 | 04731414 |
| 455359 | Nov 19, 1996 | Nov 19, 1996 | Exxon Corp. | Kleberg, R.J. Jr. Quiteria Past #131 | 12,100 | 04731746 |
| 455228 | Nov 19, 1996 | Nov 19, 1996 | Texaco E & P Inc. | McGill Bros. NCT-1 #80 | 10,800 | 04731744 |
| 455041 | Nov 15, 1996 | Nov 15, 1996 | Manti Operating Company | Sullivan, D. J. "B" #101F | 8,250 | 04731689 |
| 455113 | Nov 13, 1996 | Nov 13, 1996 | Exxon Corp. | Kleberg,r.j. Jr. Tr. Viboras Pas #99 | 8,791 | 04731058 |
| 455045 | Nov 12, 1996 | Nov 12, 1996 | Carrizo Oil & Gas, Inc. | McGill Bros. NCT-1 #76 | 7,600 | 04731743 |
| 455045Amendment | Nov 12, 1996 | Nov 12, 1996 | Carrizo Oil & Gas, Inc. | McGill Bros. NCT-1 #76 | 7,600 | 04731743 |
| 454669 | Nov 1, 1996 | Nov 1, 1996 | Gaither Petroleum Corporation | Mills Bennett Estate #58 | 8,500 | 04731742 |
| 454499 | Oct 29, 1996 | Oct 29, 1996 | Maguire Oil Company | Sullivan "T" #1 | 9,000 | 04731741 |
| 454498 | Oct 29, 1996 | Oct 29, 1996 | Suemaur Exploration, Inc. | Cage Ranch I #1649 | 10,000 | 04731740 |
| 454498Amendment | Oct 29, 1996 | Oct 29, 1996 | Suemaur Exploration, Inc. | Cage Ranch I #1649 | 10,000 | 04731740 |
| 453975 | Oct 17, 1996 | Oct 17, 1996 | Exxon Corp. | Mariposa Field Gas Unit #S 3 | 9,026 | 04731436 |
| 453866 | Oct 15, 1996 | Oct 15, 1996 | Gaither Petroleum Corporation | Bennett, Mills Estate Fee #54 | 6,024 | 04730981 |
| 452860 | Oct 15, 1996 | Oct 15, 1996 | Aegis Energy, Inc. | Garcia Gas Unit #1 | 9,500 | 04731731 |
| 452860Amendment | Oct 15, 1996 | Oct 15, 1996 | Aegis Energy, Inc. | Garcia Gas Unit #1 | 9,500 | 04731731 |
| 453516 | Oct 9, 1996 | Oct 9, 1996 | Manti Operating Company | Sullivan, D. J. "B" #80F | 8,400 | 04731385 |
| 453361 | Oct 4, 1996 | Oct 4, 1996 | Jamex, Inc. | Chapota #1 | 1,750 | 04731739 |
| 453360 | Oct 4, 1996 | Oct 4, 1996 | Jamex, Inc. | Garcia #1 | 1,750 | 04731738 |
| 453359 | Oct 4, 1996 | Oct 4, 1996 | Jamex, Inc. | Tanque Alegre #1 | 1,750 | 04731737 |
| 453315 | Oct 1, 1996 | Oct 1, 1996 | Maguire Oil Company | Chamberlain High #1 | 9,400 | 04731736 |
| 453315Amendment | Oct 1, 1996 | Oct 1, 1996 | Maguire Oil Company | Chamberlain High #1 | 8,950 | 04731736 |