| Hfu M #512142-499-02534 | Exxon Mobil Corporation | Wood, TXHawkins (Charged Eocene Sds.) | PluggedGas | 1,700 | Dec 18, 1998 | — | — |
| East Mrs. S. K. B #5742-261-31213 | Exxon Mobil Corporation | Kenedy, TXSarita East (Frio) | PluggedGas | 13,500 | Nov 25, 1998 | — | — |
| King Ranch Tijerina #J12042-249-30148 | Exxon Mobil Corporation | Jim Wells, TXT-C-B (Vxbg Consolidated) | PluggedGas | 9,700 | Nov 13, 1998 | — | — |
| Kenedy John G. Jr. E #e 54DF42-261-31212 | Exxon Mobil Corporation | Kenedy, TXEl Paistle (Consolidated) | PluggedGas | 10,850 | Nov 3, 1998 | — | — |
| Kleberg R.j.jr. Tr. Stillman #94-F42-489-30951 | Exxon Mobil Corporation | Willacy, TXWildcat | PluggedGas | 10,000 | Nov 2, 1998 | — | — |
| Viboras Field Gas Unit No. 1 #v 9942-047-31058 | Exxon Mobil Corporation | Brooks, TXViboras (Frio Cons.) | PluggedGas | 10,400 | Oct 22, 1998 | — | — |
| King Ranch Alazan #44442-273-32192 | Exxon Mobil Corporation | Kleberg, TXAlazan North (Frio Cons.) | PluggedGas | 13,000 | Oct 22, 1998 | — | — |
| King Ranch Alazan #321-D42-273-31313 | Exxon Mobil Corporation | Kleberg, TXWildcat | PluggedGas | 6,600 | Oct 14, 1998 | — | — |
| King Ranch Visnaga #12 F42-273-30533 | Exxon Mobil Corporation | Kleberg, TXWildcat | PluggedGas | 10,000 | Sep 2, 1998 | — | — |
| Exxon-West Fee B A/C 1 #18242-201-32534 | Exxon Mobil Corporation | Harris, TXWildcat | PluggedOil | 600 | Jun 30, 1998 | — | — |
| King Ranch Tijerina #1141J42-273-32270 | Exxon Mobil Corporation | Kleberg, TXT-C-B (Lower Vicksburg) | PluggedGas | 11,800 | Jun 16, 1998 | — | — |
| East Alice K. Mrs. State #3 F42-427-30690 | Exxon Mobil Corporation | Starr, TXSan Roman (Jackson 7-K) | PluggedGas | 4,303 | May 13, 1998 | — | — |
| Giddings Estate Fee #942-461-31717 | Exxon Mobil Corporation | Upton, TXImmelman (Fusselman) | PluggedOil | 13,400 | May 12, 1998 | — | — |
| King Ranch Borregos #49042-273-30148 | Exxon Mobil Corporation | Kleberg, TXBorregos (Consolidated Gas) | PluggedGas | 6,935 | Apr 29, 1998 | — | — |
| Exxon-West Fee B A/C 1 #18142-201-32530 | Exxon Mobil Corporation | Harris, TXWildcat | PluggedOil | 600 | Apr 16, 1998 | — | — |
| McGill Bros. #55242-427-33104 | Exxon Mobil Corporation | Starr, TXKelsey (Vxkbg. Consol.) | PluggedGas | 9,000 | Apr 8, 1998 | — | — |
| Kleberg R.j.jr.tr-Viboraspasture #4142-047-30053 | Exxon Mobil Corporation | Brooks, TXViboras ( G-13-C) | PluggedOil | 7,210 | Apr 1, 1998 | — | — |
| McGill Bros. #366DF42-427-04878 | Exxon Mobil Corporation | Starr, TXKelsey (Frio Consol.) | PluggedGas | 6,570 | Mar 27, 1998 | — | — |
| Kleberg R.J. Jr.tr. Stillman #11342-489-31004 | Exxon Mobil Corporation | Willacy, TXTordilla (K-45) | PluggedGas | 11,400 | Mar 20, 1998 | — | — |
| Kleberg R.J. Tr. Viboras Pas. #14342-047-31800 | Exxon Mobil Corporation | Brooks, TXViboras (Top Vxbg.-H-910) | PluggedGas | 11,100 | Mar 12, 1998 | — | — |
| Kleberg R.j.jr.tr.viboras Pas. #79DF42-047-30693 | Exxon Mobil Corporation | Brooks, TXViboras ( F-81) | PluggedGas | 8,000 | Feb 25, 1998 | — | — |
| Parker J E A/C 3A #642-003-02984 | Exxon Mobil Corporation | Andrews, TXMartin (Clear Fork) | PluggedOil | 8,955 | Feb 24, 1998 | — | — |
| Kieberg R. J. Jr. Tr. Stillman #6642-261-30854 | Exxon Mobil Corporation | Kenedy, TXStillman (K-OO W.) | PluggedGas | 12,400 | Feb 13, 1998 | — | — |
| Sullivan J. D. F #1742-047-30847 | Exxon Mobil Corporation | Brooks, TXWildcat | PluggedGas | 8,575 | Feb 9, 1998 | — | — |
| McGill Bros. #432DF42-427-30244 | Exxon Mobil Corporation | Starr, TXKelsey (Frio Consol.) | PluggedGas | 6,630 | Feb 9, 1998 | — | — |
| Sarita Field Oil & Gas Unit #100 J42-261-00403 | Exxon Mobil Corporation | Kenedy, TXSarita ( 4-H) | PluggedGas | 8,900 | Jan 12, 1998 | — | — |
| Sarita Field Oil & Gas Unit #17442-261-30686 | Exxon Mobil Corporation | Kenedy, TXSarita ( 5-KLM C) | PluggedOil | 7,700 | Dec 18, 1997 | — | — |
| Kleberg R.j.jr.tr Viboras Pas. #14142-047-31792 | Exxon Mobil Corporation | Brooks, TXViboras (Top Vxbg.-H-910) | PluggedGas | 11,100 | Dec 12, 1997 | — | — |
| Sarita Field Oil & Gas Unit #145 F42-261-30444 | Exxon Mobil Corporation | Kenedy, TXSarita ( 2-M) | PluggedGas | 8,900 | Dec 10, 1997 | — | — |
| McGill Bros. #405DF42-427-05087 | Exxon Mobil Corporation | Starr, TXKelsey (Frio Consol.) | PluggedGas | 8,470 | Dec 5, 1997 | — | — |
| King Ranch Borregos #49842-273-30229 | Exxon Mobil Corporation | Kleberg, TXBorregos (Consolidated Gas) | PluggedGas | 7,000 | Dec 2, 1997 | — | — |
| Sarita FLD Oil & Gas Unit #149 F42-261-30511 | Exxon Mobil Corporation | Kenedy, TXSarita (5-B) | PluggedOil | 9,500 | Dec 1, 1997 | — | — |
| King Ranch Canelo #104942-273-32258 | Exxon Mobil Corporation | Kleberg, TXKr\boa (VX Cons.) | PluggedGas | 13,250 | Nov 25, 1997 | — | — |
| Sarita Field Oil & Gas Unit #61 H42-261-00302 | Exxon Mobil Corporation | Kenedy, TXSarita ( 3-D) | PluggedGas | 7,050 | Nov 21, 1997 | — | — |
| Trawick GU 10 #742-347-31650 | Exxon Mobil Corporation | Nacogdoches, TXTrawick (Pettit-TP Cons.) | PluggedGas | 10,000 | Oct 29, 1997 | — | — |
| Edwin J. Bednar Oil Unit #142-173-31724 | Exxon Mobil Corporation | Glasscock, TXSpraberry (Trend Area) | PluggedOil | 10,500 | Oct 28, 1997 | — | — |
| King Ranch Los Indios #100242-273-32256 | Exxon Mobil Corporation | Kleberg, TXWildcat | PluggedGas | 13,500 | Oct 8, 1997 | — | — |
| Mariposa Field Gas Unit #f 18DF42-047-31206 | Exxon Mobil Corporation | Brooks, TXMariposa (C11-N6 Cons. Gas) | PluggedGas | 9,825 | Sep 19, 1997 | — | — |
| Mariposa Field Gas Unit #c 2042-047-31553 | Exxon Mobil Corporation | Brooks, TXMariposa (C11-N6 Cons. Gas) | PluggedGas | 10,100 | Sep 19, 1997 | — | — |
| Mariposa Field Gas Unit #f 842-047-30181 | Exxon Mobil Corporation | Brooks, TXMariposa (C11-N6 Cons. Gas) | PluggedGas | 9,150 | Sep 18, 1997 | — | — |
| King Ranch Borregos #55542-273-31470 | Exxon Mobil Corporation | Kleberg, TXBorregos (Consolidated Gas) | PluggedGas | 7,150 | Sep 18, 1997 | — | — |
| McGill Bros. #331DF42-047-01453 | Exxon Mobil Corporation | Brooks, TXKelsey (Frio Consol.) | PluggedGas | 6,370 | Sep 16, 1997 | — | — |
| King Ranch Borregos #55042-273-31299 | Exxon Mobil Corporation | Kleberg, TXBorregos (Consolidated Gas) | PluggedGas | 8,000 | Sep 16, 1997 | — | — |
| King Ranch Borregos #57142-273-31640 | Exxon Mobil Corporation | Kleberg, TXBorregos (Consolidated Gas) | PluggedGas | 8,200 | Sep 15, 1997 | — | — |
| King Ranch Laguna Larga #106242-273-32252 | Exxon Mobil Corporation | Kleberg, TXT-C-B (Vxbg Consolidated) | PluggedGas | 12,500 | Aug 19, 1997 | — | — |
| Conroe Field Unit #160242-339-01457 | Exxon Mobil Corporation | Montgomery, TXConroe | PluggedGas | 4,941 | Aug 14, 1997 | — | — |
| McGill Bros. #26842-427-00238 | Exxon Mobil Corporation | Starr, TXKelsey (Frio Consol.) | PluggedGas | 5,790 | Aug 8, 1997 | — | — |
| King Ranch San Jose de la Parra #16 F42-261-30234 | Exxon Mobil Corporation | Kenedy, TXCalandria (H - 72) | PluggedGas | 9,700 | Aug 7, 1997 | — | — |
| King Ranch San Jose de la Parra #5742-261-30964 | Exxon Mobil Corporation | Kenedy, TXCalandria (8600 Frio) | PluggedGas | 10,300 | Aug 7, 1997 | — | — |
| East S. K Mrs. -B- #4742-261-31193 | Exxon Mobil Corporation | Kenedy, TXSarita East (O-Sand) | PluggedGas | 14,750 | Aug 7, 1997 | — | — |