| 381402 | Nov 21, 1990 | Nov 21, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #287 | 6,299 | 23902635 |
| 381138 | Nov 20, 1990 | Nov 20, 1990 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #36 | 8,300 | 47935125 |
| 379275 | Nov 20, 1990 | Nov 20, 1990 | Mobil Producing TX. & N.M. Inc. | Howard | Roberts, Dora #13 | 3,010 | 22701996 |
| 381215 | Nov 19, 1990 | Nov 19, 1990 | Mobil Producing TX. & N.M. Inc. | Upton | TXL "SS" #1 | 11,000 | 46133093 |
| 381214 | Nov 19, 1990 | Nov 19, 1990 | Mobil Producing TX. & N.M. Inc. | Upton | TXL "SS" #2 | 11,000 | 46133092 |
| 381213 | Nov 19, 1990 | Nov 19, 1990 | Mobil Producing TX. & N.M. Inc. | Upton | Powell, Virgil "B" #6 | 11,000 | 46133091 |
| 381137 | Nov 19, 1990 | Nov 19, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, A. A. #235 | 7,501 | 24930044 |
| 380797 | Nov 19, 1990 | Nov 19, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #477 | 6,441 | 23930542 |
| 379698 | Nov 19, 1990 | Nov 19, 1990 | Mobil Producing TX. & N.M. Inc. | San Patricio | Welder, Minnie S. #55 | 8,998 | 40901687 |
| 379636 | Nov 16, 1990 | Nov 16, 1990 | Mobil Producing TX. & N.M. Inc. | Midland | Parks Field Unit No. 2 #1808 | 11,530 | 32931236 |
| 380861 | Nov 14, 1990 | Nov 14, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, Arthur A. et Al #8 | 8,700 | 24932151 |
| 380861Amendment | Nov 14, 1990 | Nov 14, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, Arthur A. et Al #8 | 8,700 | 24932151 |
| 380861Amendment | Nov 14, 1990 | Nov 14, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, Arthur A. et Al #8 | 8,700 | 24932151 |
| 380758 | Nov 7, 1990 | Nov 7, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #127 | 5,819 | 23902482 |
| 380754 | Nov 7, 1990 | Nov 7, 1990 | Mobil Producing TX. & N.M. Inc. | Harrison | McLofflin Unit #7 | 10,000 | 20331971 |
| 378582 | Nov 7, 1990 | Nov 7, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | Gordin Estate #36 | 8,400 | 23932558 |
| 378582Amendment | Nov 7, 1990 | Nov 7, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | Gordin Estate #36 | 8,400 | 23932558 |
| 380341 | Nov 5, 1990 | Nov 5, 1990 | Mobil Producing TX. & N.M. Inc. | Hockley | Wilson, Maple #108 | 5,100 | 21935692 |
| 380339 | Nov 5, 1990 | Nov 5, 1990 | Mobil Producing TX. & N.M. Inc. | Hockley | Wilson, Maple #109 | 5,100 | 21935693 |
| 380338 | Nov 5, 1990 | Nov 5, 1990 | Mobil Producing TX. & N.M. Inc. | Hockley | Wilson, Maple #107 | 5,100 | 21935691 |
| 380259 | Nov 5, 1990 | Nov 5, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #525 | 9,500 | 23932566 |
| 380538 | Nov 2, 1990 | Nov 2, 1990 | Mobil Producing TX. & N.M. Inc. | San Patricio | Welder, Minnie S. #40 | 7,250 | 40901675 |
| 380510 | Nov 1, 1990 | Nov 1, 1990 | Mobil Producing TX. & N.M. Inc. | Ector | Ratliff, Sallie W. #11 | 11,980 | 13533629 |
| 380136 | Nov 1, 1990 | Nov 1, 1990 | Mobil Producing TX. & N.M. Inc. | Atascosa | Wallace, J. C. #2 | 7,394 | 01302311 |
| 380449 | Oct 31, 1990 | Oct 31, 1990 | Mobil Producing TX. & N.M. Inc. | Ward | Burkholder "a" Unit #1 | 19,020 | 47530320 |
| 380432 | Oct 31, 1990 | Oct 31, 1990 | Mobil Producing TX. & N.M. Inc. | S Padre IS-LB | Texas Gulf No. 68111 #2 | 5,895 | 70030069 |
| 380426 | Oct 31, 1990 | Oct 31, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #407 | 6,244 | 23902754 |
| 379682 | Oct 31, 1990 | Oct 31, 1990 | Mobil Producing TX. & N.M. Inc. | Gaines | Russell (7000 Clearfork) Unit #310 | 8,200 | 16534266 |
| 380390 | Oct 30, 1990 | Oct 30, 1990 | Mobil Producing TX. & N.M. Inc. | Howard | Clay, H. R. Estate -126- #1 | 8,500 | 22734598 |
| 380309 | Oct 30, 1990 | Oct 30, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #114 | 5,816 | 23902469 |
| 380308 | Oct 30, 1990 | Oct 30, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #489 | 6,219 | 23931252 |
| 379937 | Oct 26, 1990 | Oct 26, 1990 | Mobil Producing TX. & N.M. Inc. | Hockley | East Mallet Unit #139 | 5,200 | 21935688 |
| 379936 | Oct 26, 1990 | Oct 26, 1990 | Mobil Producing TX. & N.M. Inc. | Hockley | East Mallet Unit #140 | 5,200 | 21935687 |
| 379935 | Oct 26, 1990 | Oct 26, 1990 | Mobil Producing TX. & N.M. Inc. | Hockley | East Mallet Unit #141 | 5,200 | 21935686 |
| 379934 | Oct 26, 1990 | Oct 26, 1990 | Mobil Producing TX. & N.M. Inc. | Hockley | East Mallet Unit #142 | 5,200 | 21935685 |
| 379855 | Oct 24, 1990 | Oct 24, 1990 | Mobil Producing TX. & N.M. Inc. | McMullen | Kynette, P. #18 | 2,982 | 31102019 |
| 380012 | Oct 23, 1990 | Oct 23, 1990 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Hamman, John "B" #6 | 13,975 | 21531432 |
| 379583 | Oct 23, 1990 | Oct 23, 1990 | Mobil Producing TX. & N.M. Inc. | Nueces | Chapman Ranch "B" #1 | 16,001 | 35506008 |
| 379910 | Oct 22, 1990 | Oct 22, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #523 | 8,555 | 23932368 |
| 379406 | Oct 19, 1990 | Oct 19, 1990 | Mobil Producing TX. & N.M. Inc. | Yoakum | Mahoney, H. O. #77 | 8,500 | 50133620 |
| 379313 | Oct 17, 1990 | Oct 17, 1990 | Mobil Producing TX. & N.M. Inc. | Ector | Ratliff, Sallie W. #9 | 11,980 | 13530193 |
| 379244 | Oct 17, 1990 | Oct 17, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Nona Mills Field Unit #3601 | 8,590 | 19900403 |
| 379244Amendment | Oct 17, 1990 | Oct 17, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Nona Mills Field Unit #3601 | 8,590 | 19900403 |
| 379075 | Oct 15, 1990 | Oct 15, 1990 | Mobil Producing TX. & N.M. Inc. | Brooks | Church of the Brethren Unit #6 | 10,900 | 04730308 |
| 379249 | Oct 11, 1990 | Oct 11, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #361 | 8,250 | 23902708 |
| 379222 | Oct 10, 1990 | Oct 10, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #404 | 6,302 | 23902751 |
| 379221 | Oct 10, 1990 | Oct 10, 1990 | Mobil Producing TX. & N.M. Inc. | Colorado | Tait, R. E., Jr. #1 | 12,000 | 08931809 |
| 378890 | Oct 10, 1990 | Oct 10, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | Traylor, W. L. #5 | 12,000 | 23930566 |
| 378890Amendment | Oct 10, 1990 | Oct 10, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | Traylor, W. L. #5 | 12,000 | 23930566 |
| 378634 | Oct 10, 1990 | Oct 10, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, A.A. #87 | 6,208 | 24902800 |
| 379107 | Oct 5, 1990 | Oct 5, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Blucher, C. F. H. #60 | 10,200 | 24932164 |
| 379107Amendment | Oct 5, 1990 | Oct 5, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Blucher, C. F. H. #60 | 10,200 | 24932164 |
| 378684 | Oct 2, 1990 | Oct 2, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, Arthur A. et Al #7 | 8,962 | 24932149 |
| 378684Amendment | Oct 2, 1990 | Oct 2, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, Arthur A. et Al #7 | 8,962 | 24932149 |
| 378684Amendment | Oct 2, 1990 | Oct 2, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, Arthur A. et Al #7 | 8,962 | 24932149 |
| 378685 | Oct 1, 1990 | Oct 1, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Church of the Brethren Unit #8 | 10,250 | 24932163 |
| 378635 | Sep 28, 1990 | Sep 28, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #509J | 6,360 | 23932134 |
| 378581 | Sep 27, 1990 | Sep 27, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #334 | 6,555 | 23902681 |
| 378560 | Sep 26, 1990 | Sep 26, 1990 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Johnson, F. I. #33F | 8,653 | 21531429 |
| 378221 | Sep 24, 1990 | Sep 24, 1990 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #35 | 9,100 | 47935099 |
| 378221Amendment | Sep 24, 1990 | Sep 24, 1990 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #35 | 9,100 | 47935099 |
| 378221Amendment | Sep 24, 1990 | Sep 24, 1990 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #35 | 8,600 | 47935099 |
| 378220 | Sep 24, 1990 | Sep 24, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #372 | 6,314 | 23902719 |
| 378206 | Sep 24, 1990 | Sep 24, 1990 | Mobil Producing TX. & N.M. Inc. | Cochran | Boyd Mallet Unit #86 | 12,331 | 07932356 |
| 378151 | Sep 19, 1990 | Sep 19, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #424 | 6,192 | 23902771 |
| 378074 | Sep 19, 1990 | Sep 19, 1990 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #34 | 8,600 | 47935093 |
| 377690 | Sep 14, 1990 | Sep 14, 1990 | Mobil Producing TX. & N.M. Inc. | Victoria | Becker, H. H. #1 | 18,500 | 46932783 |
| 376683 | Sep 13, 1990 | Sep 13, 1990 | Mobil Producing TX. & N.M. Inc. | Duval | Duval Ranch Sec. 201 a/C 5 #49 | 7,236 | 13100280 |
| 377802 | Sep 10, 1990 | Sep 10, 1990 | Mobil Producing TX. & N.M. Inc. | Kent | Mobil Fee 328 #1 | 7,500 | 26331410 |
| 377531 | Sep 10, 1990 | Sep 10, 1990 | Mobil Producing TX. & N.M. Inc. | Midland | Pegsus Field Unit #3 #706 | 12,115 | 32900891 |
| 377662 | Sep 7, 1990 | Sep 7, 1990 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Johnson, F. I. #24F | 8,560 | 21531341 |
| 377660 | Sep 7, 1990 | Sep 7, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #449 | 6,350 | 23902795 |
| 377547 | Sep 5, 1990 | Sep 5, 1990 | Mobil Producing TX. & N.M. Inc. | Gaines | Flanagan Estate Deep #2 | 12,500 | 16534202 |
| 377453 | Aug 31, 1990 | Aug 31, 1990 | Mobil Producing TX. & N.M. Inc. | Calhoun | Traylor, Maude B. #5 | 9,992 | 05701393 |
| 377452 | Aug 31, 1990 | Aug 31, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #53 | 7,500 | 23902408 |
| 377450 | Aug 31, 1990 | Aug 31, 1990 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #33 | 9,600 | 47935086 |
| 377450Amendment | Aug 31, 1990 | Aug 31, 1990 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #33 | 9,000 | 47935086 |
| 377449 | Aug 31, 1990 | Aug 31, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | Gordin Estate #30 | 6,650 | 23932248 |
| 377287 | Aug 29, 1990 | Aug 29, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #522 | 8,494 | 23932378 |
| 377131 | Aug 29, 1990 | Aug 29, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Nona Mills Field Unit #2301 | 8,519 | 19900490 |
| 375798 | Aug 29, 1990 | Aug 29, 1990 | Mobil Producing TX. & N.M. Inc. | Crane | Lea, Katie W. a/C 2 #1 | 3,157 | 10303624 |
| 377079 | Aug 28, 1990 | Aug 28, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Nona Mills Field Unit #2302 | 8,515 | 19900491 |
| 377034 | Aug 28, 1990 | Aug 28, 1990 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #32 | 8,350 | 47935081 |
| 377175 | Aug 27, 1990 | Aug 27, 1990 | Mobil Producing TX. & N.M. Inc. | Houston | Sara Ann Cannon Unit #1 | 12,000 | 22530818 |
| 377086 | Aug 24, 1990 | Aug 24, 1990 | Mobil Producing TX. & N.M. Inc. | Nueces | Aransas Prop., Inc. State Unit 1 #1 | 8,262 | 35506263 |
| 376618 | Aug 21, 1990 | Aug 21, 1990 | Mobil Producing TX. & N.M. Inc. | Matagorda | Matl-Trull "H" Sand Unit #2 | 11,973 | 32130178 |
| 375800 | Aug 20, 1990 | Aug 20, 1990 | Mobil Producing TX. & N.M. Inc. | Crane | Sand Hills Judkins Unit #46 | 4,833 | 10330451 |
| 376643 | Aug 16, 1990 | Aug 16, 1990 | Mobil Producing TX. & N.M. Inc. | Montgomery | Lake Creek Unit #42 | 13,000 | 33930715 |
| 376205 | Aug 16, 1990 | Aug 16, 1990 | Mobil Producing TX. & N.M. Inc. | Upton | Pegasus Field Unit #3 #4901 | 12,980 | 46103331 |
| 376625 | Aug 15, 1990 | Aug 15, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #211 | 6,208 | 23902566 |
| 376624 | Aug 15, 1990 | Aug 15, 1990 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #31 | 9,000 | 47935078 |
| 376393 | Aug 14, 1990 | Aug 14, 1990 | Mobil Producing TX. & N.M. Inc. | Duval | Mobil Fee No. 563 #1 | 17,000 | 13137387 |
| 376394 | Aug 13, 1990 | Aug 13, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #439 | 7,800 | 23902785 |
| 376401 | Aug 9, 1990 | Aug 9, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #40 | 5,115 | 23902395 |
| 376400 | Aug 9, 1990 | Aug 9, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #199 | 5,761 | 23902554 |
| 376357 | Aug 9, 1990 | Aug 9, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | Traylor, C. S. #1 | 10,000 | 23930736 |
| 376329 | Aug 9, 1990 | Aug 9, 1990 | Mobil Producing TX. & N.M. Inc. | Yoakum | Keller "C" #2 | 12,100 | 50132313 |
| 376326 | Aug 9, 1990 | Aug 9, 1990 | Mobil Producing TX. & N.M. Inc. | Calhoun | Brooking, M. T. #1 | 12,005 | 05700307 |
| 376361 | Aug 8, 1990 | Aug 8, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #488 | 6,288 | 23931249 |
| 376330 | Aug 8, 1990 | Aug 8, 1990 | Mobil Producing TX. & N.M. Inc. | Kent | Jones, Percy Estate Tr. 6-B #1138 | 6,800 | 26331407 |