| 379825 | Oct 23, 1990 | Oct 23, 1990 | Exxon Corp. | Upton | Pembrook Unit #124146133076 | 8,500 |
| 379649 | Oct 23, 1990 | Oct 23, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #41827331998 | 10,400 |
| 379428 | Oct 23, 1990 | Oct 23, 1990 | Exxon Corp. | Waller | Kgfcu #120747330069 | 11,200 |
| 379829 | Oct 22, 1990 | Oct 22, 1990 | Exxon Corp. | Upton | Pembrook Unit #830546133074 | 8,500 |
| 379648 | Oct 22, 1990 | Oct 22, 1990 | Exxon Corp. | Brooks | Sullivan, D. J. "B" #5104730905 | 8,250 |
| 379647 | Oct 22, 1990 | Oct 22, 1990 | Exxon Corp. | Kenedy | East, S. K. Mrs. #3326100462 | 9,650 |
| 379430 | Oct 22, 1990 | Oct 22, 1990 | Exxon Corp. | Titus | Riddle, E. L. #1244930512 | 4,400 |
| 379403 | Oct 22, 1990 | Oct 22, 1990 | Exxon Corp. | Cochran | West Levelland Unit #35407932529 | 5,200 |
| 378135 | Oct 17, 1990 | Oct 17, 1990 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #19026131106 | 6,600 |
| 377692 | Oct 15, 1990 | Oct 15, 1990 | Exxon Corp. | Duval | Duval County Ranch Co. "K" #6013137397 | 4,550 |
| 377691 | Oct 15, 1990 | Oct 15, 1990 | Exxon Corp. | Duval | Duval County Ranch Co. "K" #5913137398 | 4,550 |
| 379105 | Oct 12, 1990 | Oct 12, 1990 | Exxon Corp. | Reagan | Hughes, Zulette #938332914 | 10,647 |
| 379104 | Oct 12, 1990 | Oct 12, 1990 | Exxon Corp. | Reagan | Hughes, Zulette #1238333040 | 10,706 |
| 379045 | Oct 12, 1990 | Oct 12, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #56727331615 | 8,250 |
| 379044 | Oct 12, 1990 | Oct 12, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #1927300650 | 8,960 |
| 378870 | Oct 12, 1990 | Oct 12, 1990 | Exxon Corp. | Brooks | Kleberg, R.J. Jr.tr.zach Past St #504730788 | 9,650 |
| 379200 | Oct 11, 1990 | Oct 11, 1990 | Exxon Corp. | Andrews | Texaco Logsdon #100336819 | 12,000 |
| 379036 | Oct 11, 1990 | Oct 11, 1990 | Exxon Corp. | Upton | Pembrook Unit #550146133070 | 8,500 |
| 378956 | Oct 11, 1990 | Oct 11, 1990 | Exxon Corp. | Upton | Pembrook Unit #250246133068 | 8,500 |
| 378955 | Oct 11, 1990 | Oct 11, 1990 | Exxon Corp. | Upton | Pembrook Unit #740246133067 | 8,500 |
| 378855 | Oct 11, 1990 | Oct 11, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #11327300651 | 8,900 |
| 378900 | Oct 4, 1990 | Oct 4, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #52027330411 | 8,270 |
| 378899 | Oct 4, 1990 | Oct 4, 1990 | Exxon Corp. | Duval | Roos, H. #1513137406 | 17,600 |
| 378898 | Oct 4, 1990 | Oct 4, 1990 | Exxon Corp. | Brooks | Mariposa Field Gas Unit #C 1904731543 | 9,400 |
| 378681 | Oct 4, 1990 | Oct 4, 1990 | Exxon Corp. | Live Oak | Davidson, Mary "A" #429730756 | 5,950 |
| 378679 | Oct 4, 1990 | Oct 4, 1990 | Exxon Corp. | Kleberg | King Ranch Morgan #M 2627330232 | 6,050 |
| 378678 | Oct 4, 1990 | Oct 4, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #42327332030 | 10,400 |
| 378278 | Oct 2, 1990 | Oct 2, 1990 | Exxon Corp. | Crane | Cordona Lake Unit #11510334106 | 6,200 |
| 377923 | Oct 2, 1990 | Oct 2, 1990 | Exxon Corp. | Andrews | Parker, J. E. a/C 3A #11800336810 | 9,200 |
| 378512 | Sep 27, 1990 | Sep 27, 1990 | Exxon Corp. | Andrews | State University Hutex Cons #2600334571 | 12,637 |
| 378511 | Sep 27, 1990 | Sep 27, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #472600304552 | 7,500 |
| 378232 | Sep 27, 1990 | Sep 27, 1990 | Exxon Corp. | Brooks | Mariposa Field Gas Unit #C 1404731423 | 9,380 |
| 378275 | Sep 25, 1990 | Sep 25, 1990 | Exxon Corp. | Crane | Cordona Lake Unit #11310334105 | 6,200 |
| 378315 | Sep 21, 1990 | Sep 21, 1990 | Exxon Corp. | Austin | Raccoon Bend Oil Unit No. 28 #101530619 | 4,350 |
| 378128 | Sep 21, 1990 | Sep 21, 1990 | Exxon Corp. | Upton | Barnett, Rosa H. "D" #346104062 | 11,875 |
| 378134 | Sep 19, 1990 | Sep 19, 1990 | Exxon Corp. | Kenedy | Kenedy, John G. Jr. "E" #226100130 | 10,480 |
| 378133 | Sep 19, 1990 | Sep 19, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #7327300666 | 8,043 |
| 378071 | Sep 19, 1990 | Sep 19, 1990 | Exxon Corp. | Andrews | Means/San Andres/Unit #82200333381 | 4,700 |
| 378070 | Sep 19, 1990 | Sep 19, 1990 | Exxon Corp. | Andrews | Means/San Andres/Unit #618A00333350 | 4,700 |
| 377973 | Sep 19, 1990 | Sep 19, 1990 | Exxon Corp. | Willacy | Kleberg, R. J. Jr. Tr. Stillman #8548930928 | 15,500 |
| 377993 | Sep 18, 1990 | Sep 18, 1990 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #21526131115 | 7,400 |
| 377990 | Sep 18, 1990 | Sep 18, 1990 | Exxon Corp. | Kenedy | Kenedy, John G. Jr. "E" #5226131114 | 10,400 |
| 377987 | Sep 18, 1990 | Sep 18, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #22727330055 | 7,950 |
| 377885 | Sep 14, 1990 | Sep 14, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #40927331886 | 7,000 |
| 377884 | Sep 14, 1990 | Sep 14, 1990 | Exxon Corp. | McMullen | Lewis, Eva Coe #331132234 | 6,255 |
| 377884Amendment | Sep 14, 1990 | Sep 14, 1990 | Exxon Corp. | McMullen | Lewis, Eva Coe #331132234 | 6,255 |
| 377883 | Sep 14, 1990 | Sep 14, 1990 | Exxon Corp. | Brooks | Kleberg,r.j.jr.tr.viboras Past. #8504730769 | 8,700 |
| 377787 | Sep 14, 1990 | Sep 14, 1990 | Exxon Corp. | Midland | Hutt, Donald L. Fee #4832932273 | 9,400 |
| 377617 | Sep 14, 1990 | Sep 14, 1990 | Exxon Corp. | Matagorda | Bouldin Taylor Oil Unit I #132130149 | 11,810 |
| 377796 | Sep 12, 1990 | Sep 12, 1990 | Exxon Corp. | Austin | Sherrod, Luther R. #1301500346 | 4,100 |
| 377618 | Sep 11, 1990 | Sep 11, 1990 | Exxon Corp. | Titus | Galt, Myra #1744930511 | 4,400 |
| 377563 | Sep 10, 1990 | Sep 10, 1990 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #17426130686 | 7,300 |
| 377563Amendment | Sep 10, 1990 | Sep 10, 1990 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #17426130686 | 7,300 |
| 377586 | Sep 7, 1990 | Sep 7, 1990 | Exxon Corp. | Hockley | West Levelland Unit #172A21935631 | 5,200 |
| 377585 | Sep 7, 1990 | Sep 7, 1990 | Exxon Corp. | Hockley | West Levelland Unit #36921935630 | 5,200 |
| 377584 | Sep 7, 1990 | Sep 7, 1990 | Exxon Corp. | Cochran | West Levelland Unit #37107932525 | 5,200 |
| 377583 | Sep 7, 1990 | Sep 7, 1990 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #292300336807 | 7,500 |
| 377565 | Sep 7, 1990 | Sep 7, 1990 | Exxon Corp. | Brooks | McGill Bros. #51004731363 | 7,900 |
| 377564 | Sep 7, 1990 | Sep 7, 1990 | Exxon Corp. | Brooks | Kleberg, R.j.jr.tr.quiteria Past #7604730577 | 8,700 |
| 377632 | Sep 6, 1990 | Sep 6, 1990 | Exxon Corp. | Chambers | Rearwin, L. W. #607131614 | 9,030 |
| 377566 | Sep 6, 1990 | Sep 6, 1990 | Exxon Corp. | Frio | Hildebrand, Ira P. #2H16332830 | 8,520 |
| 377562 | Sep 6, 1990 | Sep 6, 1990 | Exxon Corp. | Kenedy | East, S. K. Mrs. #14226130756 | 10,250 |
| 377559 | Sep 5, 1990 | Sep 5, 1990 | Exxon Corp. | Austin | Brown, Minnie #601530618 | 4,600 |
| 377322 | Sep 4, 1990 | Sep 4, 1990 | Exxon Corp. | Crockett | Henderson Trust "D" #210535864 | 9,500 |
| 377321 | Sep 4, 1990 | Sep 4, 1990 | Exxon Corp. | Crockett | Henderson Trust #210535863 | 9,500 |
| 377033 | Sep 4, 1990 | Sep 4, 1990 | Exxon Corp. | Gaines | Robertson Clearfork Unit #20316534200 | 7,200 |
| 377323 | Aug 31, 1990 | Aug 31, 1990 | Exxon Corp. | Midland | Hutt, Donald L. Fee #4932932266 | 9,400 |
| 377110 | Aug 29, 1990 | Aug 29, 1990 | Exxon Corp. | Upshur | Gladewater GU 1 #245930680 | 11,900 |
| 377110Amendment | Aug 29, 1990 | Aug 29, 1990 | Exxon Corp. | Upshur | Gladewater GU 1 #245930680 | 11,900 |
| 377110Amendment | Aug 29, 1990 | Aug 29, 1990 | Exxon Corp. | Upshur | Gladewater GU 1 #245930680 | 12,453 |
| 377160 | Aug 28, 1990 | Aug 28, 1990 | Exxon Corp. | Andrews | Parker, J. E. #12300336803 | 9,200 |
| 377160Amendment | Aug 28, 1990 | Aug 28, 1990 | Exxon Corp. | Andrews | Parker, J. E. #12300336803 | 9,200 |
| 377103 | Aug 28, 1990 | Aug 28, 1990 | Exxon Corp. | Duval | White, P. E. "B" #14013136911 | 3,500 |
| 377102 | Aug 28, 1990 | Aug 28, 1990 | Exxon Corp. | Kenedy | Kenedy, John G. Jr. "C" #226100178 | 11,549 |
| 377101 | Aug 28, 1990 | Aug 28, 1990 | Exxon Corp. | Kenedy | East, S. K. Mrs. #14326130752 | 8,800 |
| 377100 | Aug 28, 1990 | Aug 28, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #1827300696 | 8,977 |
| 376797 | Aug 23, 1990 | Aug 23, 1990 | Exxon Corp. | Gaines | Robertson Clearfork Unit #790116534197 | 7,200 |
| 376795 | Aug 23, 1990 | Aug 23, 1990 | Exxon Corp. | Gaines | Robertson Clearfork Unit #90116534198 | 7,200 |
| 376575 | Aug 14, 1990 | Aug 14, 1990 | Exxon Corp. | Andrews | Parker, J.E. #12100336800 | 9,200 |
| 375631 | Aug 14, 1990 | Aug 14, 1990 | Exxon Corp. | Fort Bend | Davis, J.H.P. #5715730898 | 5,300 |
| 376344 | Aug 10, 1990 | Aug 10, 1990 | Exxon Corp. | Chambers | Trinity Bay State Unit I #6807102642 | 8,450 |
| 376208 | Aug 10, 1990 | Aug 10, 1990 | Exxon Corp. | Willacy | Thomas, M. G. et Al #348930927 | 14,700 |
| 376343 | Aug 9, 1990 | Aug 9, 1990 | Exxon Corp. | Chambers | Trinity Bay State Unit 1 #5307102631 | 8,600 |
| 376342 | Aug 9, 1990 | Aug 9, 1990 | Exxon Corp. | Chambers | Trinity Bay State Unit I #3707103202 | 8,600 |
| 376191 | Aug 2, 1990 | Aug 2, 1990 | Exxon Corp. | Cherokee | South Reklaw Gas Unit No. 2-B #207330781 | 14,300 |
| 376012 | Jul 30, 1990 | Jul 30, 1990 | Exxon Corp. | Kenedy | East, S. K. "B" Mrs. #4526131113 | 8,900 |
| 375866 | Jul 26, 1990 | Jul 26, 1990 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #3726100126 | 7,600 |
| 375865 | Jul 26, 1990 | Jul 26, 1990 | Exxon Corp. | Live Oak | Reynolds, Mary A. #2129702359 | 6,000 |
| 375864 | Jul 26, 1990 | Jul 26, 1990 | Exxon Corp. | Kenedy | East, S. K. Mrs. #10726130678 | 10,400 |
| 375863 | Jul 26, 1990 | Jul 26, 1990 | Exxon Corp. | Kleberg | King Ranch Borregos #16727301155 | 6,490 |
| 375862 | Jul 26, 1990 | Jul 26, 1990 | Exxon Corp. | Kleberg | King Ranch Alazan #30227330541 | 9,500 |
| 375767 | Jul 24, 1990 | Jul 24, 1990 | Exxon Corp. | Live Oak | Reynolds, Mary A. #3829733299 | 6,220 |
| 375770 | Jul 23, 1990 | Jul 23, 1990 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #9726100365 | 8,600 |
| 375765 | Jul 23, 1990 | Jul 23, 1990 | Exxon Corp. | Kenedy | East, S. K. Mrs. #19226131049 | 7,200 |
| 375769 | Jul 20, 1990 | Jul 20, 1990 | Exxon Corp. | Kenedy | Armstrong, Charles M. (Area Z) #5126130489 | 11,000 |
| 375479 | Jul 18, 1990 | Jul 18, 1990 | Exxon Corp. | Gaines | Jenkins, Sam C. #1316534183 | 7,500 |
| 375478 | Jul 17, 1990 | Jul 17, 1990 | Exxon Corp. | Gaines | Jenkins, Sam C. #1216534182 | 7,500 |
| 375478Amendment | Jul 17, 1990 | Jul 17, 1990 | Exxon Corp. | Gaines | Jenkins, Sam C. #1216534182 | 7,500 |
| 375477 | Jul 17, 1990 | Jul 17, 1990 | Exxon Corp. | Gaines | Jenkins, Sam C. #1416534181 | 7,500 |
| 374457 | Jul 11, 1990 | Jul 11, 1990 | Exxon Corp. | Fort Bend | Lockwood & Sharp -B- #4615730183 | 5,450 |