| 457190 | Jan 9, 1997 | Jan 9, 1997 | Greenhill Petroleum Corporation | Andrews | University 33 #1 | 12,800 | 00338129 |
| 457190Amendment | Jan 9, 1997 | Jan 9, 1997 | Greenhill Petroleum Corporation | Andrews | University 33 #1 | 13,800 | 00338129 |
| 453609 | Oct 9, 1996 | Oct 9, 1996 | Greenhill Petroleum Corporation | Liberty | Nelson Trust #2 | 15,000 | 29132258 |
| 453609Amendment | Oct 9, 1996 | Oct 9, 1996 | Greenhill Petroleum Corporation | Liberty | Nelson Trust #2 | 15,000 | 29132258 |
| 451394 | Aug 23, 1996 | Aug 23, 1996 | Greenhill Petroleum Corporation | Liberty | Stoesser et al Unit #3 | 15,000 | 29132256 |
| 451529 | Aug 15, 1996 | Aug 15, 1996 | Greenhill Petroleum Corporation | Andrews | Cowden, Emma Tract -C- #66 | 5,600 | 00337951 |
| 442589 | Dec 7, 1995 | Dec 7, 1995 | Greenhill Petroleum Corporation | Andrews | Emma Cowden Tract "C" #34 | 12,500 | 00305245 |
| 442399 | Dec 1, 1995 | Dec 1, 1995 | Greenhill Petroleum Corporation | Orange | Champion International #3 | 8,850 | 36130718 |
| 430349 | Dec 9, 1994 | Dec 9, 1994 | Greenhill Petroleum Corporation | Liberty | Nelson Trust #1 | 14,231 | 29132140 |
| 417391 | Nov 5, 1993 | Nov 5, 1993 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1066 | 4,340 | 00305443 |
| 411956 | May 26, 1993 | May 26, 1993 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1102 R | 4,400 | 00337258 |
| 411955 | May 25, 1993 | May 25, 1993 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1013 R | 4,400 | 00337257 |
| 411954 | May 25, 1993 | May 25, 1993 | Greenhill Petroleum Corporation | Wharton | Otell, Harry E. Jr. #1 | 8,108 | 48133348 |
| 410680 | Apr 22, 1993 | Apr 22, 1993 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1065 | 4,330 | 00330093 |
| 410097 | Apr 14, 1993 | Apr 14, 1993 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #710 | 4,478 | 00300190 |
| 408362 | Feb 10, 1993 | Feb 10, 1993 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1113 | 4,340 | 00302223 |
| 407574 | Dec 31, 1992 | Dec 31, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1112 | 10,650 | 00336695 |
| 407573 | Dec 28, 1992 | Dec 28, 1992 | Greenhill Petroleum Corporation | Wharton | Spade Ranch #2 | 8,500 | 48133529 |
| 407129 | Dec 17, 1992 | Dec 17, 1992 | Greenhill Petroleum Corporation | Wharton | Spade Ranch #3ST | 8,000 | 48133569 |
| 406737 | Dec 7, 1992 | Dec 7, 1992 | Greenhill Petroleum Corporation | Wharton | Vacek Gas Unit #1 | 8,500 | 48133602 |
| 406064 | Nov 13, 1992 | Nov 13, 1992 | Greenhill Petroleum Corporation | Liberty | Stoesser, et al, Unit #2 | 14,500 | 29132166 |
| 404798 | Oct 21, 1992 | Oct 21, 1992 | Greenhill Petroleum Corporation | Liberty | Haidusek Bros. Farms #1 | 14,500 | 29132162 |
| 402702 | Sep 25, 1992 | Sep 25, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #708 | 4,400 | 00337143 |
| 402701 | Sep 25, 1992 | Sep 25, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #409 | 4,400 | 00337131 |
| 402700 | Sep 25, 1992 | Sep 25, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1114 | 4,400 | 00337141 |
| 402699 | Sep 25, 1992 | Sep 25, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1206 | 4,400 | 00337142 |
| 402697 | Sep 25, 1992 | Sep 25, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1058 | 4,400 | 00337136 |
| 402696 | Sep 25, 1992 | Sep 25, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1059 | 4,400 | 00337135 |
| 402695 | Sep 25, 1992 | Sep 25, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1060 | 4,400 | 00337138 |
| 402694 | Sep 25, 1992 | Sep 25, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1061 | 4,400 | 00337137 |
| 402693 | Sep 25, 1992 | Sep 25, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1062 | 4,400 | 00337134 |
| 402692 | Sep 25, 1992 | Sep 25, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1063 | 4,400 | 00337133 |
| 402698 | Sep 18, 1992 | Sep 18, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1115 | 4,400 | 00337140 |
| 402691 | Sep 14, 1992 | Sep 14, 1992 | Greenhill Petroleum Corporation | Andrews | Emma San Andres Unit #1064 | 4,400 | 00337132 |
| 401947 | Aug 3, 1992 | Aug 3, 1992 | Greenhill Petroleum Corporation | Orange | Champion International #2 | 9,700 | 36130655 |
| 398642 | May 15, 1992 | May 15, 1992 | Greenhill Petroleum Corporation | Wharton | Spade Ranch #3 | 8,000 | 48133569 |
| 398642Amendment | May 15, 1992 | May 15, 1992 | Greenhill Petroleum Corporation | Wharton | Spade Ranch #3 | 8,000 | 48133569 |
| 398642Amendment | May 15, 1992 | May 15, 1992 | Greenhill Petroleum Corporation | Wharton | Spade Ranch #3 | 8,000 | 48133569 |
| 398351 | Apr 13, 1992 | Apr 13, 1992 | Greenhill Petroleum Corporation | Orange | Linscomb, J.V. #4ST | 9,350 | 36130544 |
| 398093 | Apr 6, 1992 | Apr 6, 1992 | Greenhill Petroleum Corporation | Orange | Brown, E. W.,jr. Estate O/A #2 | 18,000 | 36130652 |
| 395547 | Jan 8, 1992 | Jan 8, 1992 | Greenhill Petroleum Corporation | Liberty | Nelson Trust #1 | 14,400 | 29132140 |
| 395547Amendment | Jan 8, 1992 | Jan 8, 1992 | Greenhill Petroleum Corporation | Liberty | Nelson Trust #1 | 14,231 | 29132140 |
| 395044 | Dec 13, 1991 | Dec 13, 1991 | Greenhill Petroleum Corporation | Wharton | Heyne, T.P. Estate #1 | 7,822 | 48133497 |
| 393834 | Nov 12, 1991 | Nov 12, 1991 | Greenhill Petroleum Corporation | Wharton | Mattax, C. C. #1 | 10,000 | 48133537 |
| 392969 | Oct 16, 1991 | Oct 16, 1991 | Greenhill Petroleum Corporation | Wharton | Spade Ranch #2 | 8,500 | 48133529 |
| 392969Amendment | Oct 16, 1991 | Oct 16, 1991 | Greenhill Petroleum Corporation | Wharton | Spade Ranch #2 | 8,500 | 48133529 |
| 392841 | Oct 14, 1991 | Oct 14, 1991 | Greenhill Petroleum Corporation | Galveston | State Tract 290 #1 | 7,900 | 16731208 |
| 392841Amendment | Oct 14, 1991 | Oct 14, 1991 | Greenhill Petroleum Corporation | Galveston | State Tract 290 S #1 | 7,900 | 16731208 |
| 392681 | Oct 14, 1991 | Oct 14, 1991 | Greenhill Petroleum Corporation | Wharton | Spade Ranch #1 | 8,400 | 48133527 |
| 392720 | Oct 9, 1991 | Oct 9, 1991 | Greenhill Petroleum Corporation | Wharton | Otell, Harry E. Jr. #1 | 8,100 | 48133348 |
| 387399 | Jun 20, 1991 | Jun 20, 1991 | Greenhill Petroleum Corporation | Yoakum | Powell #1 | 5,400 | 50133708 |
| 388747 | Jun 19, 1991 | Jun 19, 1991 | Greenhill Petroleum Corporation | Yoakum | Randolph #1 | 5,400 | 50133711 |
| 388479 | Jun 7, 1991 | Jun 7, 1991 | Greenhill Petroleum Corporation | Yoakum | Randolph #2 | 5,400 | 50133710 |
| 387400 | May 9, 1991 | May 9, 1991 | Greenhill Petroleum Corporation | Yoakum | Powell #2 | 5,400 | 50133707 |
| 387409 | May 6, 1991 | May 6, 1991 | Greenhill Petroleum Corporation | Wharton | Heyne, T. P. Estate #1 | 8,500 | 48133497 |
| 386645 | Apr 25, 1991 | Apr 25, 1991 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #33 | 5,400 | 50133705 |
| 386646 | Apr 17, 1991 | Apr 17, 1991 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #21R | 5,400 | 50133702 |
| 386649 | Apr 16, 1991 | Apr 16, 1991 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #43 | 5,400 | 50133699 |
| 386648 | Apr 16, 1991 | Apr 16, 1991 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #44 | 5,400 | 50133700 |
| 386647 | Apr 16, 1991 | Apr 16, 1991 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #34 | 5,400 | 50133701 |
| 386644 | Apr 16, 1991 | Apr 16, 1991 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #45 | 5,400 | 50133703 |
| 386643 | Apr 16, 1991 | Apr 16, 1991 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #39 | 5,400 | 50133704 |
| 380668 | Nov 12, 1990 | Nov 12, 1990 | Greenhill Petroleum Corporation | Orange | Champion International #1 | 16,000 | 36130622 |
| 378933 | Oct 4, 1990 | Oct 4, 1990 | Greenhill Petroleum Corporation | Wharton | Sorrel, Marcial III #1 | 12,500 | 48133442 |
| 376821 | Aug 22, 1990 | Aug 22, 1990 | Greenhill Petroleum Corporation | Wharton | Meriwether, Ednamaye et Al #2 | 14,500 | 48133431 |
| 375852 | Jul 30, 1990 | Jul 30, 1990 | Greenhill Petroleum Corporation | Wharton | Wendel, I. C. #1 | 8,500 | 48133419 |
| 375852Amendment | Jul 30, 1990 | Jul 30, 1990 | Greenhill Petroleum Corporation | Wharton | Wendel, I. C. #1 | 8,600 | 48133419 |
| 374506 | Jun 21, 1990 | Jun 21, 1990 | Greenhill Petroleum Corporation | Yoakum | West Sand Andres Unit #35 | 5,400 | 50133582 |
| 374501 | Jun 21, 1990 | Jun 21, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #10R | 5,400 | 50133577 |
| 374509 | Jun 20, 1990 | Jun 20, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #38 | 5,400 | 50133576 |
| 374505 | Jun 20, 1990 | Jun 20, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres #31 | 5,400 | 50133581 |
| 374504 | Jun 20, 1990 | Jun 20, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #30 | 5,400 | 50133580 |
| 374502 | Jun 20, 1990 | Jun 20, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #11R | 5,400 | 50133574 |
| 374500 | Jun 20, 1990 | Jun 20, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #42 | 5,400 | 50133578 |
| 374499 | Jun 20, 1990 | Jun 20, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #41 | 5,400 | 50133579 |
| 374499Amendment | Jun 20, 1990 | Jun 20, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #41 | 5,400 | 50133579 |
| 374508 | Jun 19, 1990 | Jun 19, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #37 | 5,400 | 50133575 |
| 374507 | Jun 19, 1990 | Jun 19, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #36 | 5,400 | 50133583 |
| 374503 | Jun 19, 1990 | Jun 19, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #18R | 5,400 | 50133571 |
| 374498 | Jun 19, 1990 | Jun 19, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres #32 | 5,400 | 50133573 |
| 374497 | Jun 19, 1990 | Jun 19, 1990 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #40 | 5,400 | 50133572 |
| 374029 | Jun 6, 1990 | Jun 6, 1990 | Greenhill Petroleum Corporation | Wharton | Wendel, Anna Jane #1 | 8,500 | 48133387 |
| 374028 | Jun 6, 1990 | Jun 6, 1990 | Greenhill Petroleum Corporation | Wharton | Corbett Brothers #1 | 9,000 | 48133386 |
| 372579 | Apr 25, 1990 | Apr 25, 1990 | Greenhill Petroleum Corporation | Wharton | Weriwether, Ednamaye et Al #1 | 14,500 | 48133377 |
| 369622 | Feb 12, 1990 | Feb 12, 1990 | Greenhill Petroleum Corporation | Wharton | Otell, Harry E. Jr. #1 | 8,400 | 48133348 |
| 369622Amendment | Feb 12, 1990 | Feb 12, 1990 | Greenhill Petroleum Corporation | Wharton | Otell, Harry E. Jr. #1 | 8,400 | 48133348 |
| 369621 | Jan 12, 1990 | Jan 12, 1990 | Greenhill Petroleum Corporation | Wharton | Fucik, George F. #2 | 8,200 | 48133349 |
| 369621Amendment | Jan 12, 1990 | Jan 12, 1990 | Greenhill Petroleum Corporation | Wharton | Fucik, George F. #2 | 8,600 | 48133349 |
| 369621Amendment | Jan 12, 1990 | Jan 12, 1990 | Greenhill Petroleum Corporation | Wharton | Fucik, George F. #2 | 8,600 | 48133349 |
| 364873 | Oct 10, 1989 | Oct 10, 1989 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #29 | 5,500 | 50133535 |
| 364156 | Sep 28, 1989 | Sep 28, 1989 | Greenhill Petroleum Corporation | Yoakum | West San Andres Unit #28 | 5,500 | 50133523 |
| 360611 | Jun 23, 1989 | Jun 23, 1989 | Greenhill Petroleum Corporation | Fort Bend | Patterson, A. E. II #1 | 11,500 | 15731805 |
| 359185 | May 18, 1989 | May 18, 1989 | Greenhill Petroleum Corporation | Fort Bend | Moore Estate #1 | 7,800 | 15731800 |
| 359184 | May 15, 1989 | May 15, 1989 | Greenhill Petroleum Corporation | Wharton | Fucik #1 | 8,300 | 48133259 |
| 359184Amendment | May 15, 1989 | May 15, 1989 | Greenhill Petroleum Corporation | Wharton | Fucik #1 | 8,300 | 48133259 |