| Kleberg R.j.tr. Patricio Pasture #2542-261-30832 | Exxon Corp. | Kenedy, TXPita S. (I-48) | PluggedGas | 10,900 | Apr 21, 1988 | — | — |
| King Ranch Morgan #M10642-273-31988 | Exxon Corp. | Kleberg, TXMagnolia City (Garcia Sand) | PluggedOil | 7,320 | Apr 21, 1988 | — | — |
| Tomball GU 2 #2442-201-30398 | Exxon Corp. | Harris, TXTomball (Miocene 2700) | PluggedGas | 5,665 | Apr 18, 1988 | — | — |
| King Ranch Alazan #20 F42-273-00679 | Exxon Corp. | Kleberg, TXAlazan North (H-41 SD) | PluggedGas | 8,980 | Apr 13, 1988 | — | — |
| Hutt Donald L. Fee #3342-329-31998 | Exxon Corp. | Midland, TXSpraberry(trend Area Dean-Wlfcp) | PluggedOil | 9,600 | Apr 13, 1988 | — | — |
| Hutt Donald L. Fee #3642-329-32001 | Exxon Corp. | Midland, TXSpraberry(trend Area Dean-Wlfcp) | PluggedOil | 9,600 | Apr 13, 1988 | — | — |
| Welder E. H. Mrs. #29 D42-057-01374 | Exxon Corp. | Calhoun, TXHeyser (F-44) | PluggedOil | 5,600 | Apr 8, 1988 | — | — |
| King Ranch Alazan #328 F42-273-31353 | Exxon Corp. | Kleberg, TXHinojosa (F-20) | PluggedGas | 6,600 | Apr 8, 1988 | — | — |
| McGill Bros. #48142-047-31060 | Exxon Corp. | Brooks, TXKelsey S.E. (29-D N) | PluggedGas | 10,200 | Mar 30, 1988 | — | — |
| McGill Bros. #18742-427-00216 | Exxon Corp. | Starr, TXWildcat | PluggedGas | 7,500 | Mar 30, 1988 | — | — |
| McGill Bros. #495 D42-427-31758 | Exxon Corp. | Starr, TXWildcat | PluggedGas | 6,800 | Mar 30, 1988 | — | — |
| Paine Robert G. #2042-015-00366 | Exxon Corp. | Austin, TXRaccoon Bend (Jackson) | PluggedGas | 4,120 | Mar 21, 1988 | — | — |
| Sarita Field Oil & Gas Unit #46 D42-261-00134 | Exxon Corp. | Kenedy, TXSarita (19-F) | PluggedGas | 10,000 | Mar 21, 1988 | — | — |
| Viboras Field Gas Unit #1 #v 1142-047-01253 | Exxon Corp. | Brooks, TXViboras ( 04) | PluggedGas | 9,000 | Mar 17, 1988 | — | — |
| Kleberg R.J. Jr.tr. Zach.past.st #1242-047-30968 | Exxon Corp. | Brooks, TXViboras (K-50 W) | PluggedGas | 12,200 | Mar 17, 1988 | — | — |
| Santa FE Ranch #7042-215-31108 | Exxon Corp. | Hidalgo, TXSanta FE South (E-40) | PluggedGas | 8,450 | Mar 17, 1988 | — | — |
| Sauz Ranch Mulatos Pasture #2642-489-00192 | Exxon Corp. | Willacy, TXWillamar (Graben a-1 Sd. N.) | PluggedGas | 7,950 | Mar 17, 1988 | — | — |
| Bouldin Florence V. #142-321-00682 | Exxon Corp. | Matagorda, TXSugar Valley (Truitt) | PluggedGas | 10,200 | Mar 15, 1988 | — | — |
| Viboras Field Gas Unit NO.1 #V12542-047-31448 | Exxon Corp. | Brooks, TXViboras ( 04) | PluggedGas | 9,300 | Mar 14, 1988 | — | — |
| Kleberg R.J. Jr TR Zach Past St #1442-047-31066 | Exxon Corp. | Brooks, TXViboras (G-51 Viii NW) | PluggedGas | 8,700 | Mar 1, 1988 | — | — |
| Mays S. G.U. 11 #142-071-31621 | Exxon Corp. | Chambers, TXMayes South (Frio 17 11900) | PluggedGas | 12,875 | Feb 24, 1988 | — | — |
| Heard Fannie V.W. #2842-391-31634 | Exxon Corp. | Refugio, TXGreta Deep (5360) | PluggedOil | 7,630 | Feb 19, 1988 | — | — |
| Sauz Ranch Mulatos Pasture #16542-489-30635 | Exxon Corp. | Willacy, TXWillamar West (Miocene 5850) | PluggedOil | 8,500 | Feb 18, 1988 | — | — |
| King Ranch Morgan #m 542-273-00007 | Exxon Corp. | Kleberg, TXMagnolia City (Garcia Sand) | PluggedOil | 6,500 | Feb 16, 1988 | — | — |
| FR Tract 1-4B #78 H42-071-03187 | Exxon Corp. | Chambers, TXFishers Reef (Frio 6) | PluggedGas | 9,250 | Feb 12, 1988 | — | — |
| George A. P. a #1842-157-30024 | Exxon Corp. | Fort Bend, TXThompson (Miocene 12-a Seg 2) | PluggedOil | 4,750 | Feb 10, 1988 | — | — |
| King Ranch Borregos #454DF42-273-02058 | Exxon Corp. | Kleberg, TXBorregos (Consolidated Gas) | PluggedGas | 7,035 | Feb 10, 1988 | — | — |
| Viboras Field Gas Unit #1 #v 642-047-01268 | Exxon Corp. | Brooks, TXViboras ( Massive First) | PluggedGas | 8,863 | Feb 9, 1988 | — | — |
| Viboras Field Gas Unit 1 #v 65 F42-047-30314 | Exxon Corp. | Brooks, TXViboras ( 03-C Viii) | PluggedGas | 9,700 | Feb 9, 1988 | — | — |
| Kleberg R.J. Jr. Patricio Past #1842-261-30516 | Exxon Corp. | Kenedy, TXEl Patron (I-03) | PluggedGas | 10,300 | Feb 1, 1988 | — | — |
| Heard F.V.W. #8 D42-391-00794 | Exxon Corp. | Refugio, TXGreta (F-2-A) | PluggedOil | 7,975 | Jan 21, 1988 | — | — |
| Trinity Bay State Unit 1 #72 D42-071-02638 | Exxon Corp. | Chambers, TXTrinity Bay (Frio 12) | PluggedGas | 8,604 | Jan 13, 1988 | — | — |
| Sarita Field Oil & Gas Unit #13442-261-30094 | Exxon Corp. | Kenedy, TXSarita (9-B W) | PluggedOil | 6,900 | Jan 8, 1988 | — | — |
| Kuehn M. J. #642-201-00687 | Exxon Corp. | Harris, TXTomball (Cockfield UP 1-5300 SE) | PluggedGas | 5,560 | Jan 6, 1988 | — | — |
| Hoffman C. F. #242-201-81430 | Exxon Corp. | Harris, TXTomball | PluggedOil | 5,541 | Dec 14, 1987 | — | — |
| King Ranch Borregos #m 50E42-273-32100 | Exxon Corp. | Kleberg, TXEscondido Creek (20-I-3 Upper) | PluggedOil | 8,575 | Dec 14, 1987 | — | — |
| Kohler V. a #11642-131-31198 | Exxon Corp. | Duval, TXViggo (Yegua 24-B) | PluggedOil | 5,502 | Dec 11, 1987 | — | — |
| King Ranch East Laureles #b 18 F42-273-31753 | Exxon Corp. | Kleberg, TXBina N.E. (H-50) | PluggedGas | 8,420 | Dec 4, 1987 | — | — |
| King Ranch San Jose de la Parra #5342-261-30815 | Exxon Corp. | Kenedy, TXCalandria (D-75) | PluggedGas | 4,550 | Dec 1, 1987 | — | — |
| Tomball Oil Unit 1 #142-201-31340 | Exxon Corp. | Harris, TXTomball (Martens NW.) | PluggedOil | 6,200 | Nov 25, 1987 | — | — |
| Katy GF Cons. U #560142-201-04242 | Exxon Corp. | Harris, TXWildcat | PluggedGas | 7,336 | Nov 19, 1987 | — | — |
| Tomball GU 14 #1442-201-80246 | Exxon Corp. | Harris, TXTomball | PluggedGas | 5,584 | Nov 18, 1987 | — | — |
| Lockwood & Sharp -B- #44 D42-157-02511 | Exxon Corp. | Fort Bend, TXThompson (Miocene 11 Seg 4) | PluggedOil | 7,153 | Nov 10, 1987 | — | — |
| Viboras Field Gas Unit No. 1 #z 2SF42-047-01573 | Exxon Corp. | Brooks, TXViboras ( Massive First East) | PluggedGas | 10,100 | Nov 5, 1987 | — | — |
| King Ranch Colorado State #3342-247-31801 | Exxon Corp. | Jim Hogg, TXAlma South (Queen City B) | PluggedGas | 10,500 | Nov 5, 1987 | — | — |
| King Ranch Borregos #48942-273-30142 | Exxon Corp. | Kleberg, TXBorregos (Zone N-17) | PluggedGas | 6,975 | Nov 5, 1987 | — | — |
| McGill Bros. #49442-047-31243 | Exxon Corp. | Brooks, TXKelsey Deep (Frio 7250) | PluggedGas | 10,300 | Nov 4, 1987 | — | — |
| King Ranch Borregos #257 J42-273-00475 | Exxon Corp. | Kleberg, TXBorregos (Zone R-13) | PluggedGas | 7,296 | Nov 2, 1987 | — | — |
| Katy GF Cons. U #520542-473-00189 | Exxon Corp. | Waller, TXKaty (3600) | PluggedGas | 6,700 | Nov 2, 1987 | — | — |
| Pecan Gro GU 3 #142-157-31139 | Exxon Corp. | Fort Bend, TXPecan Grove SW (8000) | PluggedGas | 9,500 | Sep 28, 1987 | — | — |