| Montalvo N.R. #42 D42-427-05019 | Exxon Corp. | Starr, TXSun (F-1-M 4950) | PluggedGas | 5,200 | Apr 30, 1990 | — | — |
| Mally F. W. #242-167-01596 | Exxon Corp. | Galveston, TXGillock | PluggedGas | 8,825 | Apr 17, 1990 | — | — |
| King Ranch Borregos #55842-273-31497 | Exxon Corp. | Kleberg, TXBorregos (Zone N-11 N) | PluggedGas | 7,880 | Apr 17, 1990 | — | — |
| King Ranch Borregos #345 F42-273-00471 | Exxon Corp. | Kleberg, TXWildcat | PluggedGas | 7,849 | Apr 4, 1990 | — | — |
| Flour Bluff Oil Unit IV #142-355-32303 | Exxon Corp. | Nueces, TXFlour Bluff (I-32) | PluggedOil | 8,820 | Mar 20, 1990 | — | — |
| Tomball GU 2 #142-201-00051 | Exxon Corp. | Harris, TXTomball (Miocene 1650) | PluggedGas | 5,597 | Mar 16, 1990 | — | — |
| Santa FE Ranch #42 F42-047-30712 | Exxon Corp. | Brooks, TXSanta FE (C-72) | PluggedGas | 5,000 | Mar 12, 1990 | — | — |
| Santa FE Ranch #35 F42-047-30585 | Exxon Corp. | Brooks, TXSanta FE (C-47) | PluggedGas | 8,300 | Mar 8, 1990 | — | — |
| Santa FE Ranch #38 D42-047-30614 | Exxon Corp. | Brooks, TXSanta FE (C-47) | PluggedGas | 5,500 | Mar 7, 1990 | — | — |
| King Ranch Seeligson #C196 F42-273-31306 | Exxon Corp. | Kleberg, TXSeeligson (Zone 20-I-1) | PluggedGas | 7,200 | Feb 20, 1990 | — | — |
| King Ranch San Jose de la Parra #242-261-00287 | Exxon Corp. | Kenedy, TXCalandria (4850) | PluggedGas | 12,005 | Feb 14, 1990 | — | — |
| Kleberg R.J. Jr TR Viboras Past #13742-047-31548 | Exxon Corp. | Brooks, TXViboras ( F-47) | PluggedGas | 8,950 | Feb 9, 1990 | — | — |
| King Ranch Borregos #539 D42-273-31165 | Exxon Corp. | Kleberg, TXBorregos (Zone F-3) | PluggedGas | 8,500 | Feb 9, 1990 | — | — |
| McGill Bros. #52742-427-32080 | Exxon Corp. | Starr, TXKelsey South (Zone 22-F) | PluggedOil | 8,850 | Feb 7, 1990 | — | — |
| Kenedy John G. -E- #36 F42-261-30574 | Exxon Corp. | Kenedy, TXSarita (5-E SW) | PluggedOil | 9,650 | Jan 22, 1990 | — | — |
| Rearwin Leila W. #242-071-02622 | Exxon Corp. | Chambers, TXDouble Bayou E. (Rearwin Lo.) | PluggedOil | 9,090 | Jan 19, 1990 | — | — |
| San Jacinto Unit No. 1 #142-201-32171 | Exxon Corp. | Harris, TXCanadian Hunter | PluggedGas | 13,000 | Jan 18, 1990 | — | — |
| Pirkle L. H. #542-365-32269 | Exxon Corp. | Panola, TXCarthage (Cotton Valley) | PluggedGas | 9,400 | Jan 18, 1990 | — | — |
| Lockwood & Sharp -B- #542-157-02473 | Exxon Corp. | Fort Bend, TXWildcat | PluggedGas | 3,852 | Jan 8, 1990 | — | — |
| Lockwood-Sharp -B- #6442-157-31055 | Exxon Corp. | Fort Bend, TXThompson (3600 Sand) | PluggedOil | 5,950 | Jan 8, 1990 | — | — |
| Olcott GU 1 #342-201-05904 | Exxon Corp. | Harris, TXOlcott (Miocene 4250) | PluggedGas | 6,048 | Dec 28, 1989 | — | — |
| Olcott G U 1 #442-201-05906 | Exxon Corp. | Harris, TXOlcott (Miocene 4800) | PluggedGas | 6,044 | Dec 28, 1989 | — | — |
| Davidson Mary #842-297-02403 | Exxon Corp. | Live Oak, TXWildcat | PluggedGas | 4,710 | Dec 28, 1989 | — | — |
| Exxon-Dowdy Fee #3442-131-31641 | Exxon Corp. | Duval, TXWildcat | PluggedGas | 7,250 | Dec 27, 1989 | — | — |
| Bass A.M.K. Mrs. B #1442-247-30405 | Exxon Corp. | Jim Hogg, TXKelsey Deep (8150) | PluggedGas | 8,650 | Nov 29, 1989 | — | — |
| King Ranch Morgan #m 5542-273-30515 | Exxon Corp. | Kleberg, TXWildcat | PluggedGas | 6,150 | Nov 28, 1989 | — | — |
| Cockburn Oil Corp. #2 F42-481-02563 | Exxon Corp. | Wharton, TXMagnet Withers (Heterostegina) | PluggedGas | 6,270 | Nov 24, 1989 | — | — |
| King Ranch Borregos #465 D42-273-30029 | Exxon Corp. | Kleberg, TXBorregos (Zone N- 8 SW.) | PluggedGas | 7,070 | Nov 13, 1989 | — | — |
| Fort Chadbourne Odom Lime Unit #230142-399-31550 | Exxon Corp. | Runnels, TXFort Chadbourne | PluggedGas | 5,450 | Nov 9, 1989 | — | — |
| Schorsch Henry #442-013-02979 | Exxon Corp. | Atascosa, TXJourdanton (Buda) | PluggedOil | 7,367 | Nov 6, 1989 | — | — |
| Santa FE Ranch B #91 D42-215-31464 | Exxon Corp. | Hidalgo, TXSanta FE (G-45 S) | PluggedGas | 8,800 | Nov 3, 1989 | — | — |
| Armstrong Charles M. y #33 D42-261-30128 | Exxon Corp. | Kenedy, TXWildcat | PluggedGas | 9,950 | Oct 31, 1989 | — | — |
| Viboras Field Gas Unit No. 1 #v 5942-047-30199 | Exxon Corp. | Brooks, TXViboras ( G-34) | PluggedGas | 7,700 | Oct 30, 1989 | — | — |
| Scott & Hopper #3342-047-30870 | Exxon Corp. | Brooks, TXScott & Hopper (6500) | PluggedGas | 7,700 | Oct 26, 1989 | — | — |
| Kleberg R. J. Tr. Quiteria Past #12942-047-31519 | Exxon Corp. | Brooks, TXViboras ( F-52) | PluggedGas | 8,950 | Oct 25, 1989 | — | — |
| King Ranch Seeligson #C15242-273-01553 | Exxon Corp. | Kleberg, TXSeeligson (Zone 21-G-07) | PluggedGas | 7,500 | Oct 17, 1989 | — | — |
| Granbury C. B. #1842-373-00270 | Exxon Corp. | Polk, TXLivingston (McElroy -a- North) | PluggedOil | 4,235 | Oct 16, 1989 | — | — |
| King Ranch Borregos #158 D42-273-01322 | Exxon Corp. | Kleberg, TXBorregos (Zone J- 3) | PluggedGas | 7,048 | Oct 6, 1989 | — | — |
| Hutcheson J. C. #h 10DF42-201-06033 | Exxon Corp. | Harris, TXClear Lake (Miocene 6) | PluggedGas | 6,037 | Oct 5, 1989 | — | — |
| King Ranch East Laureles #b 19 D42-273-31820 | Exxon Corp. | Kleberg, TXBina (B-1) | PluggedGas | 8,425 | Oct 3, 1989 | — | — |
| Davis J. H. P. #2042-157-02317 | Exxon Corp. | Fort Bend, TXThompson South | PluggedGas | 5,410 | Sep 25, 1989 | — | — |
| Sherrod Luther R. #3142-015-30454 | Exxon Corp. | Austin, TXRaccoon Bend (McElroy) | PluggedOil | 4,700 | Sep 21, 1989 | — | — |
| Flossie Glenn OU #142-257-00341 | Exxon Corp. | Kaufman, TXWildcat | PluggedOil | 3,320 | Sep 21, 1989 | — | — |
| Mg.beach-Kellers Bay Melb.gas UT #k 2042-057-30111 | Exxon Corp. | Calhoun, TXMag. Beach-Kellers Bay (Foester) | PluggedGas | 8,753 | Sep 19, 1989 | — | — |
| Lockwood H. P. #26 D42-157-02413 | Exxon Corp. | Fort Bend, TXThompson (Miocene 12-B Seg 4) | PluggedOil | 3,906 | Sep 14, 1989 | — | — |
| Kleberg RJ Jr TR Vigoras Past #142-047-01282 | Exxon Corp. | Brooks, TXViboras (K-27) | PluggedGas | 10,385 | Sep 8, 1989 | — | — |
| Kellers Bay State Gas Unit #17 F42-057-00353 | Exxon Corp. | Calhoun, TXMag. Beach-Kellers Bay (Foester) | PluggedGas | 8,850 | Sep 5, 1989 | — | — |
| King Ranch Big Caesar #4742-273-32151 | Exxon Corp. | Kleberg, TXBig Caesar (L-4) | PluggedGas | 8,500 | Aug 29, 1989 | — | — |
| King Ranch Stratton #P26842-273-31899 | Exxon Corp. | Kleberg, TXStratton (Consolidated) | PluggedGas | 7,700 | Aug 22, 1989 | — | — |
| Kleberg R. J. Jr. Tr. Stillman #5242-261-30608 | Exxon Corp. | Kenedy, TXTordilla (H-70) | PluggedGas | 10,900 | Aug 18, 1989 | — | — |