| King Ranch Alazan #44142-273-32127 | Exxon Corp. | Kleberg, TXHinojosa (I-96 Lower) | PluggedGas | 13,000 | Oct 5, 1988 | — | — |
| Tomball GU 2 #1442-201-00133 | Exxon Corp. | Harris, TXTomball (Miocene 9) | PluggedGas | 6,700 | Oct 4, 1988 | — | — |
| Obrien J. M. -D- #40142-391-01028 | Exxon Corp. | Refugio, TXGreta (C-5) | PluggedGas | 4,405 | Oct 4, 1988 | — | — |
| Sauz Ranch Mulatos Pasture #18342-489-30845 | Exxon Corp. | Willacy, TXWillamar West (Miocene 6350) | PluggedOil | 9,100 | Oct 4, 1988 | — | — |
| Exxon - Yates Ranch D #542-131-37151 | Exxon Corp. | Duval, TXSquire (Pettus D) | PluggedGas | 4,970 | Sep 14, 1988 | — | — |
| Pritchett P. H. Estate #442-239-01288 | Exxon Corp. | Jackson, TXMaurbro (Pritchett) | PluggedGas | 4,593 | Sep 14, 1988 | — | — |
| King Ranch Visnaga #1742-273-31369 | Exxon Corp. | Kleberg, TXYeary (I-51) | PluggedGas | 11,000 | Sep 14, 1988 | — | — |
| McGill Bros. #53142-427-32204 | Exxon Corp. | Starr, TXKelsey SE. (26-L) | PluggedGas | 11,100 | Aug 30, 1988 | — | — |
| Brunson Glen S. -C- #142-301-30434 | Exxon Corp. | Loving, TXDimmitt (Cherry Canyon) | PluggedOil | 11,000 | Aug 12, 1988 | — | — |
| Sanford Allen Jr. Gas Unit #242-245-03231 | Exxon Corp. | Jefferson, TXHilderbrandt Bayou (Hackberry) | PluggedGas | 10,234 | Aug 10, 1988 | — | — |
| State University -FC- #142-371-34344 | Exxon Corp. | Pecos, TXCunningham Ranch (Leonard) | PluggedOil | 8,900 | Aug 9, 1988 | — | — |
| Kleberg R.j.jr.tr.quiteria Past. #2542-047-01284 | Exxon Corp. | Brooks, TXViboras (I-99) | PluggedGas | 10,493 | Aug 5, 1988 | — | — |
| King Ranch Visnaga #2942-273-31848 | Exxon Corp. | Kleberg, TXEl Infernillo (H-45) | PluggedGas | 8,480 | Aug 5, 1988 | — | — |
| FR Tract 1-4A #1742-071-02722 | Exxon Corp. | Chambers, TXFishers Reef (Frio 17) | PluggedGas | 9,200 | Aug 3, 1988 | — | — |
| Sarita Field Oil & Gas Unit #123 F42-261-30020 | Exxon Corp. | Kenedy, TXSarita (15-M) | PluggedOil | 8,115 | Aug 2, 1988 | — | — |
| Sanger Bros. Inv. Co. #242-467-00586 | Exxon Corp. | Van Zandt, TXVan | PluggedOil | 2,700 | Aug 1, 1988 | — | — |
| King Georgia B. -B- #942-003-31719 | Exxon Corp. | Andrews, TXDeep Rock (Glorieta 5950) | PluggedOil | 6,300 | Jul 27, 1988 | — | — |
| White Paul E. B #1942-131-05961 | Exxon Corp. | Duval, TXLundell (Cole) | PluggedGas | 2,558 | Jul 25, 1988 | — | — |
| Flour Bluff Gas Unit 6 #142-355-03103 | Exxon Corp. | Nueces, TXFlour Bluff (1135) | PluggedGas | 6,700 | Jul 22, 1988 | — | — |
| Holderrieth Christine B #242-201-08036 | Exxon Corp. | Harris, TXTomball (Miocene 1650) | PluggedGas | 5,562 | Jul 20, 1988 | — | — |
| Oconnor Thomas -C- #442-391-30393 | Exxon Corp. | Refugio, TXGreta (L-12) | PluggedGas | 4,450 | Jul 15, 1988 | — | — |
| Sarita Field Oil & Gas Unit #34 J42-261-00124 | Exxon Corp. | Kenedy, TXSarita (15-M) | PluggedOil | 7,702 | Jul 14, 1988 | — | — |
| Kenedy John G. H #542-261-31088 | Exxon Corp. | Kenedy, TXSanta Rosa (J-99) | PluggedGas | 11,200 | Jul 12, 1988 | — | — |
| Sullivan D. J. B #7442-047-31354 | Exxon Corp. | Brooks, TXPita East (D-5 B C) | PluggedGas | 8,850 | Jul 6, 1988 | — | — |
| Kleberg R.J. Jr TR Stillman #842-489-00552 | Exxon Corp. | Willacy, TXTordilla (I-47 S) | PluggedGas | 10,650 | Jul 6, 1988 | — | — |
| King Ranch Badeno #1242-261-30764 | Exxon Corp. | Kenedy, TXSan Jose South (H-30) | PluggedGas | 10,400 | Jun 29, 1988 | — | — |
| Carroll E. E. #242-467-00375 | Exxon Corp. | Van Zandt, TXVan (Austin Chalk) | PluggedOil | 2,650 | Jun 29, 1988 | — | — |
| Viboras Field Gas Unit No. 1 #V10242-047-31199 | Exxon Corp. | Brooks, TXViboras ( Massive First) | PluggedGas | 9,150 | Jun 28, 1988 | — | — |
| Greene Hazel #142-003-02677 | Exxon Corp. | Andrews, TXFuhrman-Mascho (Grbg-San Andres) | PluggedGas | 4,463 | Jun 23, 1988 | — | — |
| King Ranch Borregos #255 D42-273-00478 | Exxon Corp. | Kleberg, TXWildcat | PluggedGas | 8,500 | Jun 22, 1988 | — | — |
| Sullivan D. J. -B- #26 D42-047-00298 | Exxon Corp. | Brooks, TXPita (E-7-W) | PluggedGas | 8,250 | Jun 21, 1988 | — | — |
| Diemer Mrs. Alberta #1342-015-00441 | Exxon Corp. | Austin, TXRaccoon Bend (Cockfield 4000) | PluggedOil | 5,805 | Jun 15, 1988 | — | — |
| King Ranch Borregos #322 D42-273-00046 | Exxon Corp. | Kleberg, TXZone 21-B Trend | PluggedGas | 6,977 | Jun 15, 1988 | — | — |
| King Ranch Alazan #52 D42-273-00641 | Exxon Corp. | Kleberg, TXAlazan North (H-21) | PluggedGas | 7,352 | Jun 10, 1988 | — | — |
| King Ranch Alazan #33642-273-31366 | Exxon Corp. | Kleberg, TXAlazan (I-83) | PluggedGas | 9,650 | Jun 3, 1988 | — | — |
| King Ranch Alazan #346 D42-273-31434 | Exxon Corp. | Kleberg, TXWildcat | PluggedGas | 9,400 | Jun 3, 1988 | — | — |
| Duval County Ranch Co. K #2842-131-11011 | Exxon Corp. | Duval, TXCharamousca W. (Wilcox 1 C) | PluggedGas | 5,525 | May 31, 1988 | — | — |
| Sanger Bros. Inv. Co. #442-467-00588 | Exxon Corp. | Van Zandt, TXVan | PluggedOil | 2,700 | May 27, 1988 | — | — |
| York C.L. a/C 1 #1842-467-30694 | Exxon Corp. | Van Zandt, TXVan | PluggedOil | 3,050 | May 19, 1988 | — | — |
| Hardy, Rufus "B" #2342-473-30447 | Exxon Corp. | Waller, TX | Drilled | 4,500 | May 17, 1988 | — | — |
| King Ranch Borregos #58842-273-31722 | Exxon Corp. | Kleberg, TXBorregos (Zone N-21) | PluggedGas | 8,900 | May 13, 1988 | — | — |
| King Ranch Borregos #40942-273-00065 | Exxon Corp. | Kleberg, TXBorregos (Zone J-17) | PluggedGas | 5,840 | May 11, 1988 | — | — |
| McGill Bros. #384 F42-047-01627 | Exxon Corp. | Brooks, TXKelsey ( M-1-M) | PluggedGas | 6,400 | May 4, 1988 | — | — |
| McGill Bros #53542-427-32264 | Exxon Corp. | Starr, TXKelsey Deep (Zone 19-K Lower) | PluggedOil | 7,225 | May 4, 1988 | — | — |
| Santa FE Ranch #57 D42-047-30785 | Exxon Corp. | Brooks, TXSanta FE (E-03 S) | PluggedGas | 9,500 | May 2, 1988 | — | — |
| Santa FE Ranch #7142-047-30954 | Exxon Corp. | Brooks, TXWildcat | PluggedGas | 9,900 | May 2, 1988 | — | — |
| Kleberg R.J. Jr TR Zacah State #7 D42-047-30809 | Exxon Corp. | Brooks, TXViboras (G-56 Viii N) | PluggedGas | 10,050 | Apr 27, 1988 | — | — |
| Kleberg R.J. Jr.tr. Quiteria Pas #12042-047-31415 | Exxon Corp. | Brooks, TXQuiteria (Zone 6) | PluggedGas | 11,000 | Apr 27, 1988 | — | — |
| Heard Fannie V.W. #442-391-00791 | Exxon Corp. | Refugio, TXGreta (O-4) | PluggedGas | 5,944 | Apr 22, 1988 | — | — |
| Kleberg R.J. Jr TR Los Muer. PA #4042-047-31320 | Exxon Corp. | Brooks, TXViboras West (H-92) | PluggedGas | 9,050 | Apr 21, 1988 | — | — |