| 375254 | Jul 6, 1990 | Jul 6, 1990 | Exxon Corp. | Howard | Guitar, Earl B. "B" #122734577 | 11,000 |
| 375157 | Jul 5, 1990 | Jul 5, 1990 | Exxon Corp. | Brooks | Kleberg,rj Jr.tr.zach Past.state #804730830 | 9,700 |
| 375157Amendment | Jul 5, 1990 | Jul 5, 1990 | Exxon Corp. | Brooks | Kleberg,rj Jr.tr.zach Past.state #804730830 | 9,700 |
| 375156 | Jul 5, 1990 | Jul 5, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #6027300646 | 8,050 |
| 374674 | Jul 4, 1990 | Jul 4, 1990 | Exxon Corp. | Nueces | Flour Bluff Old Unit II #135532111 | 8,930 |
| 375041 | Jul 2, 1990 | Jul 2, 1990 | Exxon Corp. | Midland | Hutt, Donald L. Fee #5132932257 | 9,400 |
| 375040 | Jul 2, 1990 | Jul 2, 1990 | Exxon Corp. | Midland | Hutt, Donald L. Fee #5032932256 | 9,400 |
| 374921 | Jun 29, 1990 | Jun 29, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #44327301871 | 5,550 |
| 374920 | Jun 29, 1990 | Jun 29, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #7727300686 | 8,050 |
| 374919 | Jun 29, 1990 | Jun 29, 1990 | Exxon Corp. | Brooks | McGill Bros. #20304701002 | 6,400 |
| 372736 | Jun 29, 1990 | Jun 29, 1990 | Exxon Corp. | Fort Bend | J.H.P. Davis #5515730382 | 5,200 |
| 374923 | Jun 28, 1990 | Jun 28, 1990 | Exxon Corp. | Duval | Kohler, V. "A" #13013134741 | 6,000 |
| 374837 | Jun 28, 1990 | Jun 28, 1990 | Exxon Corp. | Brooks | Kleberg,r.j.jr.tr.quiteria Past #3304701286 | 10,004 |
| 374837Amendment | Jun 28, 1990 | Jun 28, 1990 | Exxon Corp. | Brooks | Kleberg,r.j.jr.tr.quiteria Past #3304701286 | 10,004 |
| 374835 | Jun 27, 1990 | Jun 27, 1990 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #4926100040 | 6,800 |
| 374839 | Jun 26, 1990 | Jun 26, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #31427331279 | 8,900 |
| 374838 | Jun 26, 1990 | Jun 26, 1990 | Exxon Corp. | Kleberg | King Ranch Stratton #P27427331949 | 7,280 |
| 374836 | Jun 26, 1990 | Jun 26, 1990 | Exxon Corp. | Kleberg | King Ranch West Borregos #M113C27331991 | 7,550 |
| 374836Amendment | Jun 26, 1990 | Jun 26, 1990 | Exxon Corp. | Kleberg | King Ranch West Borregos #M113C27331991 | 7,550 |
| 374802 | Jun 25, 1990 | Jun 25, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #62300336774 | 7,500 |
| 374801 | Jun 25, 1990 | Jun 25, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #142300336776 | 7,500 |
| 374800 | Jun 25, 1990 | Jun 25, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #562100336775 | 7,500 |
| 374799 | Jun 25, 1990 | Jun 25, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #311700336773 | 7,500 |
| 374758 | Jun 25, 1990 | Jun 25, 1990 | Exxon Corp. | Loving | Johnson, W.D. Jr. "E" #230130631 | 6,197 |
| 374594 | Jun 25, 1990 | Jun 25, 1990 | Exxon Corp. | Nueces | Flour Bluff Oil Unit II #235532254 | 8,630 |
| 374496 | Jun 25, 1990 | Jun 25, 1990 | Exxon Corp. | Andrews | Means/San Andres/Unit #787000336770 | 4,900 |
| 374164 | Jun 25, 1990 | Jun 25, 1990 | Exxon Corp. | Reagan | Sherrod Unit #50138334015 | 8,300 |
| 374771 | Jun 22, 1990 | Jun 22, 1990 | Exxon Corp. | Montgomery | Conroe Field Unit #352933930456 | 5,272 |
| 374620 | Jun 20, 1990 | Jun 20, 1990 | Exxon Corp. | Andrews | Parker, J. E. #11500336771 | 8,800 |
| 374560 | Jun 19, 1990 | Jun 19, 1990 | Exxon Corp. | Upton | Sherrod Unit #100346133040 | 8,300 |
| 374558 | Jun 19, 1990 | Jun 19, 1990 | Exxon Corp. | Reagan | Sherrod Unit #350138334021 | 8,300 |
| 374557 | Jun 19, 1990 | Jun 19, 1990 | Exxon Corp. | Upton | Sherrod Unit #20446133039 | 8,300 |
| 374461 | Jun 15, 1990 | Jun 15, 1990 | Exxon Corp. | Kleberg | King Ranch Canelo #2227301831 | 7,409 |
| 374460 | Jun 15, 1990 | Jun 15, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #9527300470 | 7,500 |
| 374459 | Jun 15, 1990 | Jun 15, 1990 | Exxon Corp. | Starr | Montalvo, N. R. & E. A. #2742731340 | 5,740 |
| 374458 | Jun 14, 1990 | Jun 14, 1990 | Exxon Corp. | Kleberg | King Ranch Tijerina #A 627301595 | 7,400 |
| 374356 | Jun 13, 1990 | Jun 13, 1990 | Exxon Corp. | Andrews | Means/San Andres/Unit #117600336769 | 4,900 |
| 374355 | Jun 13, 1990 | Jun 13, 1990 | Exxon Corp. | Andrews | Means/San Andres/Unit #97400336768 | 4,900 |
| 374354 | Jun 13, 1990 | Jun 13, 1990 | Exxon Corp. | Andrews | Means/San Andres/Unit #127600336767 | 4,900 |
| 374165 | Jun 8, 1990 | Jun 8, 1990 | Exxon Corp. | Reagan | Sherrod Unit #120238334016 | 8,300 |
| 374121 | Jun 8, 1990 | Jun 8, 1990 | Exxon Corp. | Calhoun | Welder, P. H. "A" #2205700113 | 5,454 |
| 374119 | Jun 8, 1990 | Jun 8, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #49227330176 | 6,965 |
| 374118 | Jun 8, 1990 | Jun 8, 1990 | Exxon Corp. | Brooks | Kleberg,r.j.jr.tr. Viboras Past #8904730833 | 8,330 |
| 374117 | Jun 8, 1990 | Jun 8, 1990 | Exxon Corp. | Brooks | Kelsey Unit #M37504701596 | 6,380 |
| 374116 | Jun 8, 1990 | Jun 8, 1990 | Exxon Corp. | Kleberg | King Ranch Morgan #P 1527331587 | 7,000 |
| 374115 | Jun 8, 1990 | Jun 8, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #41727331999 | 11,100 |
| 374120 | Jun 7, 1990 | Jun 7, 1990 | Exxon Corp. | Jim Wells | King Ranch Stratton #A 5424930108 | 7,125 |
| 374049 | Jun 7, 1990 | Jun 7, 1990 | Exxon Corp. | Andrews | Parker, J.E. #1300302991 | 8,975 |
| 371509 | Jun 4, 1990 | Jun 4, 1990 | Exxon Corp. | Fort Bend | Brazos Farms #2115702928 | 3,793 |
| 373603 | May 31, 1990 | May 31, 1990 | Exxon Corp. | Chambers | Broussard-Hebert A/C-1 #4307131532 | 7,170 |
| 373138 | May 31, 1990 | May 31, 1990 | Exxon Corp. | Fort Bend | Lockwood & Sharp -B- #6215730901 | 3,800 |
| 373904 | May 30, 1990 | May 30, 1990 | Exxon Corp. | Martin | Jones, Grace #131733716 | 11,900 |
| 373867 | May 30, 1990 | May 30, 1990 | Exxon Corp. | Andrews | Parker, J.E. #11600336552 | 7,250 |
| 370714 | May 30, 1990 | May 30, 1990 | Exxon Corp. | Winkler | Haley Unit #50249531164 | 18,330 |
| 373866 | May 29, 1990 | May 29, 1990 | Exxon Corp. | Fort Bend | Lockwood, H. P. #3815730407 | 5,996 |
| 373804 | May 29, 1990 | May 29, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #48027330074 | 6,995 |
| 373758 | May 25, 1990 | May 25, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #29727300056 | 6,325 |
| 373737 | May 25, 1990 | May 25, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #60627331860 | 7,270 |
| 373341 | May 22, 1990 | May 22, 1990 | Exxon Corp. | Chambers | TB State Unit NO 1 #106D07103487 | 8,450 |
| 373425 | May 18, 1990 | May 18, 1990 | Exxon Corp. | Kenedy | Kleberg,r.j.jr.tr. Patricio Past #3026131112 | 10,250 |
| 373355 | May 18, 1990 | May 18, 1990 | Exxon Corp. | Refugio | O'Brien, J.M. "B" #21339131848 | 5,355 |
| 373354 | May 18, 1990 | May 18, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #35427300122 | 5,825 |
| 373284 | May 17, 1990 | May 17, 1990 | Exxon Corp. | Duval | South Lundell Gas Unit 1 #213135141 | 2,480 |
| 373332 | May 16, 1990 | May 16, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #54300336751 | 7,400 |
| 373331 | May 16, 1990 | May 16, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #234700336753 | 7,400 |
| 373330 | May 16, 1990 | May 16, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #662100336752 | 7,400 |
| 373329 | May 16, 1990 | May 16, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #642100336750 | 7,400 |
| 373328 | May 16, 1990 | May 16, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #44100336749 | 7,400 |
| 373283 | May 16, 1990 | May 16, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #60927331896 | 7,070 |
| 373091 | May 16, 1990 | May 16, 1990 | Exxon Corp. | Chambers | Trinity Bay St UT 1 #7407102584 | 8,600 |
| 373213 | May 15, 1990 | May 15, 1990 | Exxon Corp. | Brooks | Kelsey Unit #M38304701625 | 6,400 |
| 373212 | May 15, 1990 | May 15, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #60027331840 | 7,000 |
| 373211 | May 15, 1990 | May 15, 1990 | Exxon Corp. | Kenedy | East, S. K. Mrs. #14426130754 | 9,870 |
| 373210 | May 15, 1990 | May 15, 1990 | Exxon Corp. | Brooks | McGill Bros. #16504701123 | 6,450 |
| 373202 | May 15, 1990 | May 15, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #32727301292 | 7,169 |
| 373197 | May 14, 1990 | May 14, 1990 | Exxon Corp. | Brooks | McGill Bros. #19104701103 | 6,399 |
| 373191 | May 14, 1990 | May 14, 1990 | Exxon Corp. | Kleberg | King Ranch Visnaga #2727331843 | 8,926 |
| 372926 | May 11, 1990 | May 11, 1990 | Exxon Corp. | Chambers | FR Tract 1-4B #7007102712 | 8,380 |
| 372943 | May 9, 1990 | May 9, 1990 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #17726130725 | 7,750 |
| 372631 | May 4, 1990 | May 4, 1990 | Exxon Corp. | Nueces | Pita Island Field Gas Unit #1 #235530208 | 10,100 |
| 372753 | May 3, 1990 | May 3, 1990 | Exxon Corp. | Kenedy | East, S. K. Mrs. #9026130392 | 8,970 |
| 372752 | May 3, 1990 | May 3, 1990 | Exxon Corp. | Kenedy | East, S. K. Mrs. #13526130711 | 10,050 |
| 372682 | May 3, 1990 | May 3, 1990 | Exxon Corp. | Duval | Duval County Ranch Co. "K" #1413110969 | 5,612 |
| 372802 | May 2, 1990 | May 2, 1990 | Exxon Corp. | Upton | Pembrook Unit #90146133025 | 8,500 |
| 372751 | May 2, 1990 | May 2, 1990 | Exxon Corp. | Brooks | McGill Bros. #46504730922 | 8,000 |
| 372734 | May 2, 1990 | May 2, 1990 | Exxon Corp. | Chambers | Trinity Bay State Unit 1 #3807101183 | 7,700 |
| 372733 | May 2, 1990 | May 2, 1990 | Exxon Corp. | Chambers | Trinity Bay State Unit No. 1 #109F07130006 | 8,450 |
| 372684 | May 2, 1990 | May 2, 1990 | Exxon Corp. | Brooks | Kleberg,r.j. Jr.tr. Viboras Past #11004731225 | 8,980 |
| 372683 | May 2, 1990 | May 2, 1990 | Exxon Corp. | Brooks | McGill Bros. #39104701621 | 6,400 |
| 372681 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Kenedy | East, S. K. Mrs. #13826130729 | 6,002 |
| 372672 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Brooks | Mariposa Field Gas Unit #F 2404731396 | 9,400 |
| 372636 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Starr | Montalvo, N. R. #4242705019 | 5,200 |
| 372635 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Brooks | Amado Trad "B" #504731331 | 7,720 |
| 372634 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Atascosa | Sandeen, John #601333186 | 7,925 |
| 372633 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Brooks | McGill Bros. #35904701564 | 6,420 |
| 372632 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Hidalgo | Santa FE Ranch "B" #9821531544 | 9,400 |
| 372588 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Kleberg | King Ranch Chiltipin #8327331441 | 11,500 |
| 372586 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #23927330072 | 7,330 |
| 372585 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Brooks | Mariposa Field Gas Unit #F 1804731206 | 9,425 |
| 372583 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #7326100305 | 8,275 |