| 404504 | Oct 9, 1992 | Oct 9, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #95 | 8,350 | 47935629 |
| 404317 | Oct 5, 1992 | Oct 5, 1992 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Hamman, John B. #24D | 11,700 | 21531675 |
| 404261 | Oct 5, 1992 | Oct 5, 1992 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Hamman, John B #9D | 8,600 | 21531453 |
| 404123 | Oct 1, 1992 | Oct 1, 1992 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Stewart-Jones Unit No. 1 #7 | 7,900 | 24932036 |
| 404103 | Sep 30, 1992 | Sep 30, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #99 | 7,500 | 47935615 |
| 403993 | Sep 25, 1992 | Sep 25, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #98 | 9,300 | 47935610 |
| 403993Amendment | Sep 25, 1992 | Sep 25, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #98 | 9,300 | 47935610 |
| 403842 | Sep 24, 1992 | Sep 24, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #4 | 8,490 | 47931921 |
| 403842Amendment | Sep 24, 1992 | Sep 24, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #4 | 8,490 | 47931921 |
| 403740 | Sep 22, 1992 | Sep 22, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #100 | 9,300 | 47935600 |
| 403740Amendment | Sep 22, 1992 | Sep 22, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #100 | 9,300 | 47935600 |
| 403363 | Sep 17, 1992 | Sep 17, 1992 | Mobil Producing TX. & N.M. Inc. | Upton | Pegasus Ellenburger Unit #1725 | 16,000 | 46133325 |
| 403503 | Sep 15, 1992 | Sep 15, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #90 | 9,260 | 47935594 |
| 403503Amendment | Sep 15, 1992 | Sep 15, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #90 | 9,260 | 47935594 |
| 402259 | Sep 9, 1992 | Sep 9, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #502 | 5,891 | 23932009 |
| 402824 | Sep 2, 1992 | Sep 2, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #91 | 7,550 | 47935577 |
| 402869 | Sep 1, 1992 | Sep 1, 1992 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Johnson, F.I. #12 | 10,500 | 21531216 |
| 402867 | Aug 31, 1992 | Aug 31, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #89 | 9,050 | 47935579 |
| 402867Amendment | Aug 31, 1992 | Aug 31, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #89 | 9,050 | 47935579 |
| 402885 | Aug 28, 1992 | Aug 28, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | Stanford, P.H. #4 | 9,725 | 47934548 |
| 402756 | Aug 28, 1992 | Aug 28, 1992 | Mobil Producing TX. & N.M. Inc. | San Patricio | Welder, Minnie S. #70 | 8,600 | 40932114 |
| 402611 | Aug 24, 1992 | Aug 24, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #88 | 7,500 | 47935566 |
| 402490 | Aug 24, 1992 | Aug 24, 1992 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Blucher, C.F.H. #57 | 7,525 | 24931952 |
| 402489 | Aug 24, 1992 | Aug 24, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #34 | 5,132 | 23902389 |
| 402575 | Aug 21, 1992 | Aug 21, 1992 | Mobil Producing TX. & N.M. Inc. | Duval | D.C.R.C. #1201 | 10,357 | 13137325 |
| 402491 | Aug 19, 1992 | Aug 19, 1992 | Mobil Producing TX. & N.M. Inc. | Duval | D.C.R.C. #1204 | 10,312 | 13137363 |
| 402344 | Aug 14, 1992 | Aug 14, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #44 | 9,450 | 47935207 |
| 402344Amendment | Aug 14, 1992 | Aug 14, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #44 | 9,450 | 47935207 |
| 402178 | Aug 14, 1992 | Aug 14, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #41 | 9,150 | 47935185 |
| 402178Amendment | Aug 14, 1992 | Aug 14, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #41 | 9,150 | 47935185 |
| 402308 | Aug 13, 1992 | Aug 13, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #103 | 6,759 | 23902458 |
| 402083 | Aug 11, 1992 | Aug 11, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | G.B.G.L. & Co. #5 | 8,650 | 47935553 |
| 402083Amendment | Aug 11, 1992 | Aug 11, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | G.B.G.L. & C. Co. #5 | 8,650 | 47935553 |
| 402097 | Aug 6, 1992 | Aug 6, 1992 | Mobil Producing TX. & N.M. Inc. | Gaines | DCB Doss #1 | 5,700 | 16534180 |
| 401735 | Jul 28, 1992 | Jul 28, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #43 | 12,000 | 47935208 |
| 401734 | Jul 28, 1992 | Jul 28, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #19 | 9,220 | 47934717 |
| 401491 | Jul 24, 1992 | Jul 24, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #86 | 7,800 | 47935538 |
| 401491Amendment | Jul 24, 1992 | Jul 24, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callagahan Ranch #86 | 7,800 | 47935538 |
| 401490 | Jul 24, 1992 | Jul 24, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #87 | 9,100 | 47935537 |
| 401490Amendment | Jul 24, 1992 | Jul 24, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #87 | 8,500 | 47935537 |
| 401489 | Jul 24, 1992 | Jul 24, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #84 | 9,300 | 47935536 |
| 401489Amendment | Jul 24, 1992 | Jul 24, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #84 | 9,300 | 47935536 |
| 401549 | Jul 23, 1992 | Jul 23, 1992 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Stewart-Jones Unit No. 2 #5 | 9,000 | 24932026 |
| 401520 | Jul 22, 1992 | Jul 22, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #83 | 6,800 | 47935534 |
| 401520Amendment | Jul 22, 1992 | Jul 22, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #83 | 6,800 | 47935534 |
| 401478 | Jul 22, 1992 | Jul 22, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #10 | 9,000 | 47934214 |
| 401477 | Jul 22, 1992 | Jul 22, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #24 | 8,100 | 47934942 |
| 401455 | Jul 21, 1992 | Jul 21, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | Callaghan Ranch, South #12 | 8,300 | 47934633 |
| 401454 | Jul 21, 1992 | Jul 21, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #26 | 8,000 | 47934976 |
| 401382 | Jul 20, 1992 | Jul 20, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #85 | 9,200 | 47935530 |
| 401235 | Jul 15, 1992 | Jul 15, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #512 | 6,429 | 23932209 |
| 401234 | Jul 15, 1992 | Jul 15, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #341 | 6,324 | 23902688 |
| 401131 | Jul 13, 1992 | Jul 13, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #69 R | 8,075 | 47935521 |
| 401057 | Jul 10, 1992 | Jul 10, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #514 | 6,470 | 23932216 |
| 401056 | Jul 10, 1992 | Jul 10, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #46 | 7,950 | 47935220 |
| 400936 | Jul 7, 1992 | Jul 7, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #82 | 9,400 | 47935511 |
| 400574 | Jul 1, 1992 | Jul 1, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #55 | 5,766 | 23902410 |
| 400573 | Jul 1, 1992 | Jul 1, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #127 | 5,819 | 23902482 |
| 400739 | Jun 30, 1992 | Jun 30, 1992 | Mobil Producing TX. & N.M. Inc. | Andrews | Cowden Estate et Al #11 | 12,410 | 00337052 |
| 398901 | Jun 23, 1992 | Jun 23, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #76 | 9,275 | 47935461 |
| 400413 | Jun 22, 1992 | Jun 22, 1992 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Russell, N. L. #7 | 8,000 | 24932063 |
| 398086 | Jun 22, 1992 | Jun 22, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #286 | 6,190 | 23902634 |
| 400358 | Jun 19, 1992 | Jun 19, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #75 | 5,768 | 23902430 |
| 399965 | Jun 9, 1992 | Jun 9, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #79 | 9,000 | 47935488 |
| 399964 | Jun 9, 1992 | Jun 9, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #80 | 8,500 | 47935490 |
| 399963 | Jun 9, 1992 | Jun 9, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #81 | 9,150 | 47935489 |
| 399893 | Jun 9, 1992 | Jun 9, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #36 | 6,250 | 23902391 |
| 399895 | Jun 8, 1992 | Jun 8, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #288 | 6,488 | 23902636 |
| 399895Amendment | Jun 8, 1992 | Jun 8, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #288 | 6,488 | 23902636 |
| 399894 | Jun 8, 1992 | Jun 8, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #515 | 6,440 | 23932224 |
| 399827 | Jun 4, 1992 | Jun 4, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #73 | 9,075 | 47935487 |
| 399908 | Jun 3, 1992 | Jun 3, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #29 | 6,544 | 23902384 |
| 399907 | Jun 3, 1992 | Jun 3, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #65 | 5,579 | 23902420 |
| 398929 | Jun 2, 1992 | Jun 2, 1992 | Mobil Producing TX. & N.M. Inc. | Andrews | Minton, E. H. a/C 3 #23 | 12,000 | 00336446 |
| 399749 | May 28, 1992 | May 28, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #74 | 9,100 | 47935483 |
| 399588 | May 28, 1992 | May 28, 1992 | Mobil Producing TX. & N.M. Inc. | San Patricio | Welder, Minnie S. #1 | 8,822 | 40901642 |
| 398902 | May 28, 1992 | May 28, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #77 | 8,100 | 47935459 |
| 398902Amendment | May 28, 1992 | May 28, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #77 | 8,100 | 47935459 |
| 398900 | May 28, 1992 | May 28, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #78 | 7,800 | 47935460 |
| 399577 | May 22, 1992 | May 22, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #75 | 8,500 | 47935479 |
| 399577Amendment | May 22, 1992 | May 22, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #75 | 8,500 | 47935479 |
| 399390 | May 20, 1992 | May 20, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #489 | 6,303 | 23931252 |
| 399334 | May 20, 1992 | May 20, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #42 | 5,850 | 23902397 |
| 399333 | May 20, 1992 | May 20, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #398 | 6,200 | 23902745 |
| 399335 | May 19, 1992 | May 19, 1992 | Mobil Producing TX. & N.M. Inc. | San Patricio | Welder, Minnie S. #23 | 9,000 | 40901660 |
| 399416 | May 18, 1992 | May 18, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #31 | 6,305 | 23902386 |
| 399415 | May 18, 1992 | May 18, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #519 | 8,601 | 23932370 |
| 399371 | May 18, 1992 | May 18, 1992 | Mobil Producing TX. & N.M. Inc. | Hardin | Feldman, D. D. Fee #C796 | 1,000 | 19932606 |
| 399370 | May 18, 1992 | May 18, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | West Ranch "A" #202 | 8,250 | 23902557 |
| 399283 | May 15, 1992 | May 15, 1992 | Mobil Producing TX. & N.M. Inc. | Nueces | State Tracts D & E Unit #1 | 13,797 | 35530645 |
| 399226 | May 12, 1992 | May 12, 1992 | Mobil Producing TX. & N.M. Inc. | Lavaca | Dornak, Mike E. #1 | 9,500 | 28531973 |
| 399226Amendment | May 12, 1992 | May 12, 1992 | Mobil Producing TX. & N.M. Inc. | Lavaca | Dornak, Mike E. #1 | 9,500 | 28531973 |
| 399056 | May 7, 1992 | May 7, 1992 | Mobil Producing TX. & N.M. Inc. | Jackson | Gordin Estate #32 | 7,500 | 23932285 |
| 398910 | May 1, 1992 | May 1, 1992 | Mobil Producing TX. & N.M. Inc. | Jim Wells | Blucher, C. F. H #56 | 7,500 | 24931951 |
| 398869 | Apr 30, 1992 | Apr 30, 1992 | Mobil Producing TX. & N.M. Inc. | Hidalgo | Johnson, F. I. #46 D | 8,500 | 21531460 |
| 398786 | Apr 29, 1992 | Apr 29, 1992 | Mobil Producing TX. & N.M. Inc. | Pecos | Schlosser, Fred Estate B #13 | 6,000 | 37136357 |
| 398785 | Apr 29, 1992 | Apr 29, 1992 | Mobil Producing TX. & N.M. Inc. | Pecos | Schlosser, Fred Estate B #11 | 6,000 | 37136356 |
| 398784 | Apr 29, 1992 | Apr 29, 1992 | Mobil Producing TX. & N.M. Inc. | Pecos | Schlosser, Fred Estate B #9 | 6,000 | 37136358 |
| 398701 | Apr 29, 1992 | Apr 29, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #70 | 9,300 | 47935455 |
| 398700 | Apr 29, 1992 | Apr 29, 1992 | Mobil Producing TX. & N.M. Inc. | Webb | South Callaghan Ranch #71 | 8,350 | 47935453 |