| 342788 | Feb 18, 1988 | Feb 18, 1988 | Exxon Corp. | Willacy | Sauz Ranch Mulatos Pasture #16548930635 | 8,100 |
| 342649 | Feb 18, 1988 | Feb 18, 1988 | Exxon Corp. | Galveston | Dickinson Oil Unit 1 #316730589 | 9,750 |
| 342631 | Feb 18, 1988 | Feb 18, 1988 | Exxon Corp. | Brooks | Kleberg,rj Jr.tr.viboras Pasture #7904730693 | 7,650 |
| 342625 | Feb 18, 1988 | Feb 18, 1988 | Exxon Corp. | Brooks | Kleberg,rj Jr.tr.viboras Pasture #5904730199 | 7,700 |
| 342625Amendment | Feb 18, 1988 | Feb 18, 1988 | Exxon Corp. | Brooks | Viboras Field Gas Unit #1 #V 5904730199 | 7,700 |
| 342717 | Feb 17, 1988 | Feb 17, 1988 | Exxon Corp. | Kleberg | King Ranch Stratton #A 8627332103 | 7,230 |
| 342717Amendment | Feb 17, 1988 | Feb 17, 1988 | Exxon Corp. | Kleberg | King Ranch Stratton #A 8627332103 | 7,230 |
| 342621 | Feb 17, 1988 | Feb 17, 1988 | Exxon Corp. | Brooks | R.J.K. Jr. Tr. Quiteria Pasture #7104730140 | 7,450 |
| 342623 | Feb 16, 1988 | Feb 16, 1988 | Exxon Corp. | Kleberg | King Ranch Morgan #M 527300007 | 6,500 |
| 342619 | Feb 16, 1988 | Feb 16, 1988 | Exxon Corp. | Brooks | Sullivan, D. J. "F" #1804731206 | 9,825 |
| 342619Amendment | Feb 16, 1988 | Feb 16, 1988 | Exxon Corp. | Brooks | Sullivan, D. J. "F" #1804731206 | 9,825 |
| 342660 | Feb 12, 1988 | Feb 12, 1988 | Exxon Corp. | Wood | Hawkins Field Unit #993149931595 | 5,000 |
| 342630 | Feb 12, 1988 | Feb 12, 1988 | Exxon Corp. | Chambers | Anahuac Unit No. 9 #107131858 | 8,500 |
| 342620 | Feb 12, 1988 | Feb 12, 1988 | Exxon Corp. | Calhoun | Marshall, H. T. #305700058 | 5,487 |
| 342525 | Feb 12, 1988 | Feb 12, 1988 | Exxon Corp. | Chambers | FR Tract 1-4B #7807103187 | 9,250 |
| 342491 | Feb 12, 1988 | Feb 12, 1988 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #268200336053 | 7,400 |
| 342490 | Feb 12, 1988 | Feb 12, 1988 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #246800336052 | 7,400 |
| 342489 | Feb 12, 1988 | Feb 12, 1988 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #276600336051 | 7,400 |
| 342488 | Feb 11, 1988 | Feb 11, 1988 | Exxon Corp. | Upton | Tippett Spraberry Unit #2746132755 | 8,600 |
| 342362 | Feb 11, 1988 | Feb 11, 1988 | Exxon Corp. | Brooks | Mariposa Field Gas Unit #S 404731440 | 9,354 |
| 342361 | Feb 11, 1988 | Feb 11, 1988 | Exxon Corp. | Brooks | Kelsey Unit #M10004701015 | 6,635 |
| 342317 | Feb 11, 1988 | Feb 11, 1988 | Exxon Corp. | Kleberg | King Ranch Morgan #P 2227332102 | 7,250 |
| 342317Amendment | Feb 11, 1988 | Feb 11, 1988 | Exxon Corp. | Kleberg | King Ranch Morgan #P 2227332102 | 7,250 |
| 342373 | Feb 10, 1988 | Feb 10, 1988 | Exxon Corp. | Kleberg | King Ranch Borregos #45427302058 | 7,035 |
| 341364 | Feb 10, 1988 | Feb 10, 1988 | Exxon Corp. | Fort Bend | George, A. P. -A- #1815730024 | 4,750 |
| 341287 | Feb 10, 1988 | Feb 10, 1988 | Exxon Corp. | Wharton | Cockburn, H. C. #6648103365 | 6,315 |
| 342368 | Feb 9, 1988 | Feb 9, 1988 | Exxon Corp. | Willacy | Kleberg, R. J. Jr. Tr. Stillman #7748930831 | 11,250 |
| 342247 | Feb 9, 1988 | Feb 9, 1988 | Exxon Corp. | Brooks | Viboras Field Gas Unit No. 1 #V 6504730314 | 9,345 |
| 342246 | Feb 9, 1988 | Feb 9, 1988 | Exxon Corp. | Brooks | Kleberg,rj Jr.tr.viboras Pasture #604701268 | 8,863 |
| 342245 | Feb 9, 1988 | Feb 9, 1988 | Exxon Corp. | Kenedy | King Ranch San Jose de la Parra #226100287 | 12,005 |
| 342244 | Feb 9, 1988 | Feb 9, 1988 | Exxon Corp. | Kenedy | East, S. K. Mrs. #17426130953 | 14,530 |
| 342357 | Feb 8, 1988 | Feb 8, 1988 | Exxon Corp. | Montgomery | Conroe Field Unit #51833930804 | 5,250 |
| 342271 | Feb 8, 1988 | Feb 8, 1988 | Exxon Corp. | Kleberg | King Ranch Morgan "P" #2327332094 | 7,450 |
| 342271Amendment | Feb 8, 1988 | Feb 8, 1988 | Exxon Corp. | Kleberg | King Ranch Morgan #P 2327332094 | 7,450 |
| 342271Amendment | Feb 8, 1988 | Feb 8, 1988 | Exxon Corp. | Kleberg | King Ranch Morgan #P 2327332094 | 7,450 |
| 341778 | Feb 4, 1988 | Feb 4, 1988 | Exxon Corp. | Wharton | East Magnet Withers Unit No. 3 #148133143 | 6,100 |
| 341778Amendment | Feb 4, 1988 | Feb 4, 1988 | Exxon Corp. | Wharton | East Magnet Withers Unit No. 3 #148133143 | 6,100 |
| 341305 | Feb 4, 1988 | Feb 4, 1988 | Exxon Corp. | Wharton | Cockburn, H. C. #8748103609 | 7,150 |
| 342197 | Feb 3, 1988 | Feb 3, 1988 | Exxon Corp. | Chambers | FR State Tract 46 #5907102729 | 9,016 |
| 342121 | Feb 3, 1988 | Feb 3, 1988 | Exxon Corp. | Ward | State University "FZ" #147530512 | 17,070 |
| 342030 | Feb 3, 1988 | Feb 3, 1988 | Exxon Corp. | Kleberg | King Ranch Alazan #34327331414 | 9,900 |
| 342193 | Feb 2, 1988 | Feb 2, 1988 | Exxon Corp. | Nacogdoches | Trawick Gas Unit No. 18 #434731532 | 9,500 |
| 342193Amendment | Feb 2, 1988 | Feb 2, 1988 | Exxon Corp. | Nacogdoches | Trawick G U 18 #4U34731532 | 9,500 |
| 342038 | Feb 2, 1988 | Feb 2, 1988 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #3126100033 | 9,000 |
| 339637 | Feb 2, 1988 | Feb 2, 1988 | Exxon Corp. | Andrews | Freund #100335979 | 7,800 |
| 342087 | Feb 1, 1988 | Feb 1, 1988 | Exxon Corp. | Montgomery | Conroe Field Unit #231433930802 | 5,200 |
| 342037 | Feb 1, 1988 | Feb 1, 1988 | Exxon Corp. | Starr | McGill Bros. #52742732080 | 8,850 |
| 342036 | Feb 1, 1988 | Feb 1, 1988 | Exxon Corp. | Brooks | Sullivan, D. J. "B" #6404731312 | 9,750 |
| 342035 | Feb 1, 1988 | Feb 1, 1988 | Exxon Corp. | Kenedy | Kleberg,r.j.jr.tr.patricio Past. #1826130516 | 10,019 |
| 342034 | Feb 1, 1988 | Feb 1, 1988 | Exxon Corp. | Brooks | Kleberg,r.j.jr.tr. Viboras Past. #2404701275 | 8,700 |
| 342031 | Feb 1, 1988 | Feb 1, 1988 | Exxon Corp. | Brooks | Kleberg,r.j.jr.tr.quiteria Past. #12304731461 | 8,050 |
| 342031Amendment | Feb 1, 1988 | Feb 1, 1988 | Exxon Corp. | Brooks | Kleberg,r.j.jr.tr.quiteria Past. #12304731461 | 8,050 |
| 341893 | Jan 26, 1988 | Jan 26, 1988 | Exxon Corp. | Montgomery | Conroe Field Unit #195633930801 | 5,200 |
| 341795 | Jan 25, 1988 | Jan 25, 1988 | Exxon Corp. | Harris | Webster Field Unit #502020132124 | 6,100 |
| 341243 | Jan 25, 1988 | Jan 25, 1988 | Exxon Corp. | Andrews | Means/San Andres/Unit #56800336014 | 4,700 |
| 341738 | Jan 22, 1988 | Jan 22, 1988 | Exxon Corp. | Kleberg | King Ranch Borregos #58827331722 | 8,500 |
| 341728 | Jan 22, 1988 | Jan 22, 1988 | Exxon Corp. | Brooks | McGill Bros. #17204701154 | 7,168 |
| 341727 | Jan 22, 1988 | Jan 22, 1988 | Exxon Corp. | San Patricio | Mayo, J. W. Acct. 1 #1940901378 | 4,929 |
| 340637 | Jan 22, 1988 | Jan 22, 1988 | Exxon Corp. | Wharton | Cockburn, H. C. #13848133134 | 6,100 |
| 340635 | Jan 22, 1988 | Jan 22, 1988 | Exxon Corp. | Montgomery | Conroe Field Unit #272433930794 | 5,200 |
| 341729 | Jan 21, 1988 | Jan 21, 1988 | Exxon Corp. | Refugio | Heard, Fannie V. W. #839100794 | 7,975 |
| 341729Amendment | Jan 21, 1988 | Jan 21, 1988 | Exxon Corp. | Refugio | Heard, Fannie V. W. #839100794 | 7,975 |
| 341584 | Jan 19, 1988 | Jan 19, 1988 | Exxon Corp. | Wood | Hawkins Field Unit #328449931594 | 5,580 |
| 341452 | Jan 19, 1988 | Jan 19, 1988 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #612700336034 | 7,400 |
| 341451 | Jan 19, 1988 | Jan 19, 1988 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #612500336033 | 7,400 |
| 341570 | Jan 18, 1988 | Jan 18, 1988 | Exxon Corp. | Montgomery | Conroe Field Unit #195733930799 | 5,220 |
| 341474 | Jan 18, 1988 | Jan 18, 1988 | Exxon Corp. | Andrews | Means/San Andres/Unit #255800336020 | 4,700 |
| 341469 | Jan 18, 1988 | Jan 18, 1988 | Exxon Corp. | Andrews | Fullerton Clearfork Unit #306800336035 | 7,400 |
| 341462 | Jan 18, 1988 | Jan 18, 1988 | Exxon Corp. | Kleberg | King Ranch Borregos #60027331840 | 7,000 |
| 341461 | Jan 18, 1988 | Jan 18, 1988 | Exxon Corp. | Kenedy | East, S. K. Mrs. #19626131081 | 10,900 |
| 341388 | Jan 18, 1988 | Jan 18, 1988 | Exxon Corp. | Kleberg | King Ranch West Borregos #M114C27332013 | 6,550 |
| 341388Amendment | Jan 18, 1988 | Jan 18, 1988 | Exxon Corp. | Kleberg | King Ranch West Borregos #M114C27332013 | 6,550 |
| 341387 | Jan 18, 1988 | Jan 18, 1988 | Exxon Corp. | Kenedy | Sarita Field Oil & Gas Unit #1626100015 | 8,000 |
| 341431 | Jan 15, 1988 | Jan 15, 1988 | Exxon Corp. | Wood | Hawkins Field Unit #352349931593 | 5,650 |
| 341390 | Jan 15, 1988 | Jan 15, 1988 | Exxon Corp. | Kleberg | King Ranch Borregos #60527331827 | 7,495 |
| 341390Amendment | Jan 15, 1988 | Jan 15, 1988 | Exxon Corp. | Kleberg | King Ranch Borregos #60527331827 | 7,495 |
| 341390Amendment | Jan 15, 1988 | Jan 15, 1988 | Exxon Corp. | Kleberg | King Ranch Borregos #60527331827 | 7,495 |
| 341391 | Jan 14, 1988 | Jan 14, 1988 | Exxon Corp. | Kenedy | King Ranch San Jose de la Parra #3426130590 | 8,110 |
| 341361 | Jan 14, 1988 | Jan 14, 1988 | Exxon Corp. | Loving | Santa FE Andover #430130802 | 6,850 |
| 341360 | Jan 14, 1988 | Jan 14, 1988 | Exxon Corp. | Loving | TXL "13" #830130803 | 6,850 |
| 341359 | Jan 14, 1988 | Jan 14, 1988 | Exxon Corp. | Loving | Brelsford, M. #430130804 | 7,000 |
| 341348 | Jan 14, 1988 | Jan 14, 1988 | Exxon Corp. | Kleberg | King Ranch Alazan #2527300672 | 8,005 |
| 341347 | Jan 14, 1988 | Jan 14, 1988 | Exxon Corp. | Kleberg | King Ranch Alazan #6027300646 | 8,050 |
| 341336 | Jan 14, 1988 | Jan 14, 1988 | Exxon Corp. | Chambers | RFR Tract 247 #154DF07103220 | 11,438 |
| 341309 | Jan 13, 1988 | Jan 13, 1988 | Exxon Corp. | Waller | Kgfcu (Ckfd UB) #540147300112 | 7,311 |
| 341308 | Jan 13, 1988 | Jan 13, 1988 | Exxon Corp. | Chambers | Trinity Bay State Unit No. 1 #7207102638 | 8,604 |
| 341307 | Jan 13, 1988 | Jan 13, 1988 | Exxon Corp. | Montgomery | Conroe Field Unit #211833930690 | 9,125 |
| 341306 | Jan 13, 1988 | Jan 13, 1988 | Exxon Corp. | Chambers | Trinity Bay State Unit No. 1 #3707103202 | 5,600 |
| 341053 | Jan 13, 1988 | Jan 13, 1988 | Exxon Corp. | Loving | Centerre Bank Trustee #130130796 | 7,500 |
| 341053Amendment | Jan 13, 1988 | Jan 13, 1988 | Exxon Corp. | Loving | Centerre Bank Trustee #130130796 | 7,500 |
| 341304 | Jan 12, 1988 | Jan 12, 1988 | Exxon Corp. | Harris | Webster Field Unit #501920132121 | 6,100 |
| 341299 | Jan 12, 1988 | Jan 12, 1988 | Exxon Corp. | Starr | McGill Bros. #53242732238 | 9,500 |
| 341246 | Jan 12, 1988 | Jan 12, 1988 | Exxon Corp. | Andrews | Means/San Andres/Unit #25600336017 | 4,700 |
| 341245 | Jan 12, 1988 | Jan 12, 1988 | Exxon Corp. | Andrews | Means/San Andres/Unit #55600336016 | 4,700 |
| 341244 | Jan 12, 1988 | Jan 12, 1988 | Exxon Corp. | Andrews | Means/San Andres/Unit #205800336015 | 4,700 |
| 340225 | Jan 11, 1988 | Jan 11, 1988 | Exxon Corp. | Chambers | Trinity Bay State Unit No. 1 #12207131681 | 8,470 |
| 342347 | Jan 8, 1988 | Jan 8, 1988 | Exxon Corp. | Upshur | Gladewater GU 9 #245930662 | 12,500 |
| 341193 | Jan 8, 1988 | Jan 8, 1988 | Exxon Corp. | Van Zandt | Blake, R. S. #1646700451 | 2,890 |
| 341172 | Jan 8, 1988 | Jan 8, 1988 | Exxon Corp. | Andrews | Means/San Andres/Unit #115600336012 | 4,700 |
| 341171 | Jan 8, 1988 | Jan 8, 1988 | Exxon Corp. | Andrews | Means/San Andres/Unit #94600336011 | 4,700 |