| 384560 | Feb 13, 1991 | Feb 13, 1991 | Mobil Producing TX. & N.M. Inc. | Cochran | Boyd Mallet Unit #89 | 5,150 | 07932574 |
| 383289 | Feb 13, 1991 | Feb 13, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #119 | 8,600 | 23902474 |
| 383675 | Feb 12, 1991 | Feb 12, 1991 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #39 | 8,750 | 47935153 |
| 383675Amendment | Feb 12, 1991 | Feb 12, 1991 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #39 | 8,750 | 47935153 |
| 384463 | Feb 11, 1991 | Feb 11, 1991 | Mobil Producing TX. & N.M. Inc. | Jim Wells | La Gloria Gas Unit #104 | 7,252 | 24931764 |
| 384308 | Feb 11, 1991 | Feb 11, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #486 | 6,229 | 23931251 |
| 384308Amendment | Feb 11, 1991 | Feb 11, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #486 | 6,229 | 23931251 |
| 384021 | Feb 11, 1991 | Feb 11, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #L 34W | 6,800 | 26331421 |
| 384018 | Feb 11, 1991 | Feb 11, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #E334 | 6,700 | 26331424 |
| 384015 | Feb 11, 1991 | Feb 11, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #G524W | 6,800 | 26331427 |
| 384010 | Feb 11, 1991 | Feb 11, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #H 63AW | 6,700 | 26331418 |
| 384377 | Feb 7, 1991 | Feb 7, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch 'A' #522 | 8,297 | 23932378 |
| 384327 | Feb 6, 1991 | Feb 6, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #488 | 6,321 | 23931249 |
| 384025 | Feb 4, 1991 | Feb 4, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #H 61AW | 6,700 | 26331430 |
| 384024 | Feb 4, 1991 | Feb 4, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #G522 | 6,800 | 26331429 |
| 384020 | Feb 4, 1991 | Feb 4, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #N411W | 6,900 | 26331422 |
| 384017 | Feb 4, 1991 | Feb 4, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #H411 | 6,700 | 26331425 |
| 384017Amendment | Feb 4, 1991 | Feb 4, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #H411 | 6,700 | 26331425 |
| 384016 | Feb 4, 1991 | Feb 4, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #C577 | 6,800 | 26331426 |
| 384014 | Feb 4, 1991 | Feb 4, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #G523 | 6,800 | 26331428 |
| 384143 | Feb 1, 1991 | Feb 1, 1991 | Mobil Producing TX. & N.M. Inc. | Montgomery | Lake Creek Unit #48 | 15,000 | 33930857 |
| 384143Amendment | Feb 1, 1991 | Feb 1, 1991 | Mobil Producing TX. & N.M. Inc. | Montgomery | Lake Creek Unit #48 | 15,000 | 33930857 |
| 384142 | Feb 1, 1991 | Feb 1, 1991 | Mobil Producing TX. & N.M. Inc. | Montgomery | Lake Creek Unit #49 | 15,000 | 33930856 |
| 384141 | Feb 1, 1991 | Feb 1, 1991 | Mobil Producing TX. & N.M. Inc. | Hardin | Nona Mills Field Unit #2001 | 8,516 | 19900508 |
| 384019 | Feb 1, 1991 | Feb 1, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #C354 | 6,700 | 26331423 |
| 384023 | Jan 31, 1991 | Jan 31, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #J 37 | 6,800 | 26331419 |
| 384022 | Jan 31, 1991 | Jan 31, 1991 | Mobil Producing TX. & N.M. Inc. | Kent | Salt Creek Field Unit #J 38 | 6,800 | 26331420 |
| 383965 | Jan 30, 1991 | Jan 30, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #122 | 5,595 | 23902477 |
| 382817 | Jan 30, 1991 | Jan 30, 1991 | Mobil Producing TX. & N.M. Inc. | Crane | Texas University Sec. 1 & 2 #76 | 3,450 | 10334124 |
| 383982 | Jan 29, 1991 | Jan 29, 1991 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Hamman, John "B" #6 | 13,975 | 21531432 |
| 383981 | Jan 29, 1991 | Jan 29, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #32 | 6,610 | 23902387 |
| 383885 | Jan 25, 1991 | Jan 25, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #527 | 5,600 | 23932581 |
| 383884 | Jan 25, 1991 | Jan 25, 1991 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, A. A. #87 | 7,800 | 24902800 |
| 383682 | Jan 23, 1991 | Jan 23, 1991 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Hamman, John "B" #11F | 10,000 | 21531459 |
| 383679 | Jan 21, 1991 | Jan 21, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #492 | 6,221 | 23931255 |
| 383676 | Jan 21, 1991 | Jan 21, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #225 | 6,501 | 23902580 |
| 383514 | Jan 21, 1991 | Jan 21, 1991 | Mobil Producing TX. & N.M. Inc. | Crane | Texas University Sec. 1 & 2 #84W | 3,450 | 10334129 |
| 383565 | Jan 17, 1991 | Jan 17, 1991 | Mobil Producing TX. & N.M. Inc. | Brooks | South la Gloria Gas Unit #10 | 7,250 | 04700053 |
| 383565Amendment | Jan 17, 1991 | Jan 17, 1991 | Mobil Producing TX. & N.M. Inc. | Brooks | South la Gloria Gas Unit #10 | 7,250 | 04700053 |
| 383035 | Jan 16, 1991 | Jan 16, 1991 | Mobil Producing TX. & N.M. Inc. | Willacy | Rectifer #1 | 250 | 48930930 |
| 383337 | Jan 11, 1991 | Jan 11, 1991 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Hamman, John "B" #22 | 11,500 | 21531549 |
| 383337Amendment | Jan 11, 1991 | Jan 11, 1991 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Hamman, John "B" #22 | 11,450 | 21531549 |
| 383273 | Jan 10, 1991 | Jan 10, 1991 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Johnson, F. I. #33F | 8,653 | 21531429 |
| 383273Amendment | Jan 10, 1991 | Jan 10, 1991 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Johnson, F. I. #33F | 8,653 | 21531429 |
| 383259 | Jan 9, 1991 | Jan 9, 1991 | Mobil Producing TX. & N.M. Inc. | Lavaca | Annie Brown et al Gas Unit #1 | 9,100 | 28530096 |
| 383258 | Jan 9, 1991 | Jan 9, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #495 | 6,320 | 23931684 |
| 383257 | Jan 9, 1991 | Jan 9, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #398 | 6,200 | 23902745 |
| 383257Amendment | Jan 9, 1991 | Jan 9, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #398 | 6,200 | 23902745 |
| 381827 | Jan 5, 1991 | Jan 5, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #516 | 7,450 | 23932230 |
| 383009 | Jan 4, 1991 | Jan 4, 1991 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #37 | 8,800 | 47935145 |
| 383009Amendment | Jan 4, 1991 | Jan 4, 1991 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #37 | 8,800 | 47935145 |
| 382816 | Jan 4, 1991 | Jan 4, 1991 | Mobil Producing TX. & N.M. Inc. | Crane | Texas University Sec. 1 & 2 #78 | 3,450 | 10334123 |
| 382814 | Jan 4, 1991 | Jan 4, 1991 | Mobil Producing TX. & N.M. Inc. | Crane | Texas Unversity Sec 1 & 2 #80 | 3,450 | 10334120 |
| 382785 | Jan 4, 1991 | Jan 4, 1991 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #38 | 8,800 | 47935141 |
| 382096 | Jan 4, 1991 | Jan 4, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch State #2 | 8,600 | 23902797 |
| 381961 | Jan 4, 1991 | Jan 4, 1991 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, A. A. #171 | 8,800 | 24902869 |
| 381945 | Jan 4, 1991 | Jan 4, 1991 | Mobil Producing TX. & N.M. Inc. | Andrews | McFarland Queen North Unit #70 | 5,000 | 00336862 |
| 382830 | Jan 3, 1991 | Jan 3, 1991 | Mobil Producing TX. & N.M. Inc. | Crane | Texas Universtiy Sec. 1 & 2 #83W | 3,450 | 10334117 |
| 382818 | Jan 3, 1991 | Jan 3, 1991 | Mobil Producing TX. & N.M. Inc. | Crane | Texas University Sec. 1 & 2 #77 | 3,450 | 10334118 |
| 382815 | Jan 3, 1991 | Jan 3, 1991 | Mobil Producing TX. & N.M. Inc. | Crane | Texas University Sec. 1 & 2 #79 | 3,450 | 10334119 |
| 382813 | Jan 3, 1991 | Jan 3, 1991 | Mobil Producing TX. & N.M. Inc. | Crane | Texas University Sec. 1 & 2 #81 | 3,450 | 10334121 |
| 382812 | Jan 3, 1991 | Jan 3, 1991 | Mobil Producing TX. & N.M. Inc. | Crane | Texas University Sec. 1 & 2 #82W | 3,450 | 10334122 |
| 382722 | Jan 3, 1991 | Jan 3, 1991 | Mobil Producing TX. & N.M. Inc. | Pecos | Athey, Charles B. #3 | 5,460 | 37110678 |
| 381764 | Jan 3, 1991 | Jan 3, 1991 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #503 | 8,250 | 23932014 |
| 381187 | Dec 31, 1990 | Dec 31, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #58 | 7,496 | 23902413 |
| 382878 | Dec 21, 1990 | Dec 21, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D. D. Fee #B800 | 1,175 | 19932600 |
| 382877 | Dec 21, 1990 | Dec 21, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D. D. Fee #B793 | 920 | 19932601 |
| 382876 | Dec 21, 1990 | Dec 21, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D. D. Fee #C802 | 1,120 | 19932602 |
| 382874 | Dec 21, 1990 | Dec 21, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D.D. Fee #C795 | 930 | 19932603 |
| 382873 | Dec 21, 1990 | Dec 21, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D.D. Fee #B799 | 1,050 | 19932604 |
| 382872 | Dec 21, 1990 | Dec 21, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D.D. Fee #C794 | 1,030 | 19932605 |
| 382871 | Dec 21, 1990 | Dec 21, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D.D. Fee #C796 | 1,060 | 19932606 |
| 382869 | Dec 21, 1990 | Dec 21, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D.D. Fee #C801 | 915 | 19932607 |
| 382365 | Dec 20, 1990 | Dec 20, 1990 | Mobil Producing TX. & N.M. Inc. | Andrews | Armstrong, Elizabeth "E" #8 | 9,500 | 00336438 |
| 382154 | Dec 13, 1990 | Dec 13, 1990 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #30 | 9,275 | 47935133 |
| 379069 | Dec 13, 1990 | Dec 13, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Nona Mills Field Unit #2501 | 8,507 | 19900499 |
| 381685 | Dec 12, 1990 | Dec 12, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #526 | 8,400 | 23932574 |
| 381944 | Dec 11, 1990 | Dec 11, 1990 | Mobil Producing TX. & N.M. Inc. | Andrews | McFarland Queen North Unit #71 | 5,000 | 00336861 |
| 381944Amendment | Dec 11, 1990 | Dec 11, 1990 | Mobil Producing TX. & N.M. Inc. | Andrews | McFarland Queen North Unit #71 | 5,000 | 00336861 |
| 382100 | Dec 7, 1990 | Dec 7, 1990 | Mobil Producing TX. & N.M. Inc. | Sherman | Baskin-Jahns Unit #1 A | 4,000 | 42130508 |
| 382098 | Dec 7, 1990 | Dec 7, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Blucher, C.F.H. #42 | 7,445 | 24903856 |
| 381784 | Dec 7, 1990 | Dec 7, 1990 | Mobil Producing TX. & N.M. Inc. | Pecos | State McIntyre Unit #1 | 13,075 | 37105311 |
| 381663 | Dec 7, 1990 | Dec 7, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, A. A. #51 | 8,300 | 24902768 |
| 381943 | Dec 5, 1990 | Dec 5, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Mills, Nona Field Unit #1811 | 8,615 | 19900402 |
| 380959 | Dec 4, 1990 | Dec 4, 1990 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Seeligson, A. A. #248 | 6,670 | 24932113 |
| 381479 | Dec 3, 1990 | Dec 3, 1990 | Mobil Producing TX. & N.M. Inc. | Pecos | Moore, Wayne #21 | 6,500 | 37136289 |
| 381479Amendment | Dec 3, 1990 | Dec 3, 1990 | Mobil Producing TX. & N.M. Inc. | Pecos | Moore, Wayne #21 | 6,500 | 37136289 |
| 381503 | Nov 30, 1990 | Nov 30, 1990 | Mobil Producing TX. & N.M. Inc. | Cochran | Wright Unit #569 | 5,050 | 07932554 |
| 381502 | Nov 30, 1990 | Nov 30, 1990 | Mobil Producing TX. & N.M. Inc. | Cochran | Wright Unit #267 | 5,050 | 07932551 |
| 381501 | Nov 30, 1990 | Nov 30, 1990 | Mobil Producing TX. & N.M. Inc. | Cochran | Wright Unit #268 | 5,050 | 07932552 |
| 381500 | Nov 30, 1990 | Nov 30, 1990 | Mobil Producing TX. & N.M. Inc. | Cochran | Wright Unit #970 | 5,050 | 07932553 |
| 381499 | Nov 30, 1990 | Nov 30, 1990 | Mobil Producing TX. & N.M. Inc. | Cochran | Wright Unit #1071 | 5,050 | 07932550 |
| 381758 | Nov 29, 1990 | Nov 29, 1990 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #48 | 6,580 | 23902403 |
| 381306 | Nov 29, 1990 | Nov 29, 1990 | Mobil Producing TX. & N.M. Inc. | Upton | TXL "V" #2 | 11,000 | 46133094 |
| 381641 | Nov 28, 1990 | Nov 28, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D. D. Fee #C797 | 1,040 | 19932597 |
| 381640 | Nov 28, 1990 | Nov 28, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D. D. Fee #C804 | 1,230 | 19932593 |
| 381639 | Nov 28, 1990 | Nov 28, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D. D. Fee #C805 | 1,345 | 19932594 |
| 381638 | Nov 28, 1990 | Nov 28, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D. D. Fee #C798 | 1,140 | 19932595 |
| 381637 | Nov 28, 1990 | Nov 28, 1990 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D. D. Fee #C803 | 1,120 | 19932596 |
| 381371 | Nov 28, 1990 | Nov 28, 1990 | Mobil Producing TX. & N.M. Inc. | Midland | Preston Spraberry Unit #3410 | 8,530 | 32931638 |