| 542374 | Feb 23, 2004 | Feb 23, 2004 | Tmbr/Sharp Drilling, Inc. | Reeves | Ligon "22" State #2 | 16,259 | 38932202 |
| 536236 | Sep 9, 2003 | Sep 9, 2003 | Tmbr/Sharp Drilling, Inc. | Reeves | Red Horse "144" #2 | 5,300 | 38932277 |
| 535573 | Aug 20, 2003 | Aug 20, 2003 | Tmbr/Sharp Drilling, Inc. | Loving | Brunson "B" #2 | 17,000 | 30131141 |
| 533290 | Jun 18, 2003 | Jun 18, 2003 | Tmbr/Sharp Drilling, Inc. | Loving | Glenn S. Brunson "B" #1 | 17,070 | 30130319 |
| 525208 | Nov 4, 2002 | Nov 4, 2002 | Tmbr/Sharp Drilling, Inc. | Reeves | Ligon "22" State #1HH | 16,500 | 38932165 |
| 523200 | Aug 28, 2002 | Aug 28, 2002 | Tmbr/Sharp Drilling, Inc. | Reagan | Scottish Rite "31" #3003 | 10,500 | 38335225 |
| 523200Amendment | Aug 28, 2002 | Aug 28, 2002 | Tmbr/Sharp Drilling, Inc. | Reagan | Scottish Rite "31" #3003 | 10,500 | 38335225 |
| 523199 | Aug 28, 2002 | Aug 28, 2002 | Tmbr/Sharp Drilling, Inc. | Reagan | Scottish Rite "32" #1 | 10,500 | 38335226 |
| 522026 | Jul 19, 2002 | Jul 19, 2002 | Tmbr/Sharp Drilling, Inc. | Glasscock | Jones "46" #1 | 9,930 | 17332779 |
| 521220 | Jun 20, 2002 | Jun 20, 2002 | Tmbr/Sharp Drilling, Inc. | Loving | Leiman #1R | 22,000 | 30131133 |
| 515253 | Nov 9, 2001 | Nov 9, 2001 | Tmbr/Sharp Drilling, Inc. | Loving | Leiman #1 | 22,000 | 30131130 |
| 514207 | Oct 4, 2001 | Oct 4, 2001 | Tmbr/Sharp Drilling, Inc. | Reeves | Red Horse "144" #1 | 18,000 | 38932235 |
| 514005 | Sep 27, 2001 | Sep 27, 2001 | Tmbr/Sharp Drilling, Inc. | Reeves | Ligon State "22" #5 | 7,000 | 38932233 |
| 512733 | Aug 20, 2001 | Aug 20, 2001 | Tmbr/Sharp Drilling, Inc. | Glasscock | Glasscock "AJ" Fee #1 | 9,966 | 17332624 |
| 508692 | May 8, 2001 | May 8, 2001 | Tmbr/Sharp Drilling, Inc. | Reeves | Ligon State "22" #3 | 7,000 | 38932217 |
| 499641Amendment | Apr 3, 2001 | Apr 3, 2001 | Tmbr/Sharp Drilling, Inc. | Pecos | McKenzie State "57" #1 | 3,000 | 37137020 |
| 504527 | Jan 25, 2001 | Jan 25, 2001 | Tmbr/Sharp Drilling, Inc. | Reeves | Ligon "22" State #2 | 18,000 | 38932202 |
| 504527Amendment | Jan 25, 2001 | Jan 25, 2001 | Tmbr/Sharp Drilling, Inc. | Reeves | Ligon "22" State #2 | 16,259 | 38932202 |
| 500446 | Oct 5, 2000 | Oct 5, 2000 | Tmbr/Sharp Drilling, Inc. | Pecos | McKenzie 85 #2 | 9,000 | 37137028 |
| 499641 | Sep 14, 2000 | Sep 14, 2000 | Tmbr/Sharp Drilling, Inc. | Pecos | McKenzie State "57" #1 | 9,000 | 37137020 |
| 498904 | Aug 25, 2000 | Aug 25, 2000 | Tmbr/Sharp Drilling, Inc. | Pecos | McKenzie State "58" #1 | 9,000 | 37137016 |
| 496749 | Jun 30, 2000 | Jun 30, 2000 | Tmbr/Sharp Drilling, Inc. | Dawson | Echols & Clay #1 | 12,500 | 11533046 |
| 495848 | Jun 5, 2000 | Jun 5, 2000 | Tmbr/Sharp Drilling, Inc. | Pecos | McKenzie 85 #1 | 10,000 | 37136998 |
| 494779 | May 5, 2000 | May 5, 2000 | Tmbr/Sharp Drilling, Inc. | Lynn | Earls #1 | 8,000 | 30530045 |
| 493862 | Apr 7, 2000 | Apr 7, 2000 | Tmbr/Sharp Drilling, Inc. | Lynn | Franklin #1 | 11,100 | 30530443 |
| 493298 | Mar 21, 2000 | Mar 21, 2000 | Tmbr/Sharp Drilling, Inc. | Pecos | McKenzie State 6 #1 | 10,000 | 37136989 |
| 491424 | Jan 25, 2000 | Jan 25, 2000 | Tmbr/Sharp Drilling, Inc. | Reagan | Scottich Rite Schumaker #2 | 10,500 | 38335042 |
| 491424Amendment | Jan 25, 2000 | Jan 25, 2000 | Tmbr/Sharp Drilling, Inc. | Reagan | Scottish Rite 31 #2 | 10,500 | 38335042 |
| 490563 | Dec 21, 1999 | Dec 21, 1999 | Tmbr/Sharp Drilling, Inc. | Dawson | Harris, E. W. et al 11 #1 | 12,200 | 11533037 |
| 484785 | May 25, 1999 | May 25, 1999 | Tmbr/Sharp Drilling, Inc. | Gaines | Bell Ranch 20 #1 | 12,400 | 16535424 |
| 483609 | Mar 30, 1999 | Mar 30, 1999 | Tmbr/Sharp Drilling, Inc. | Crockett | West et al "A" #1 | 1,000 | 10538256 |
| 482522 | Feb 8, 1999 | Feb 8, 1999 | Tmbr/Sharp Drilling, Inc. | Reagan | North Creek 10 #1 | 10,100 | 38334985 |
| 481239 | Dec 2, 1998 | Dec 2, 1998 | Tmbr/Sharp Drilling, Inc. | Reagan | Pink Draw North #1 #1 | 10,500 | 38334955 |
| 480505 | Oct 28, 1998 | Oct 28, 1998 | Tmbr/Sharp Drilling, Inc. | Glasscock | Ray #1 | 9,700 | 17332477 |
| 476992 | Jun 9, 1998 | Jun 9, 1998 | Tmbr/Sharp Drilling, Inc. | Reeves | Balmorhea Ranch 132 #1 | 12,500 | 38932156 |
| 475988 | May 5, 1998 | May 5, 1998 | Tmbr/Sharp Drilling, Inc. | Crockett | West Etal #1 | 8,500 | 10538132 |
| 475988Amendment | May 5, 1998 | May 5, 1998 | Tmbr/Sharp Drilling, Inc. | Crockett | West Etal #1 | 8,500 | 10538132 |
| 471630 | Dec 23, 1997 | Dec 23, 1997 | Tmbr/Sharp Drilling, Inc. | Glasscock | Glass "34" #1 | 8,300 | 17332511 |
| 468401Amendment | Oct 3, 1997 | Oct 3, 1997 | Tmbr/Sharp Drilling, Inc. | Reeves | Touchstone, M. C. #1H | 11,700 | 38930245 |
| 468401Amendment | Oct 3, 1997 | Oct 3, 1997 | Tmbr/Sharp Drilling, Inc. | Reeves | Touchstone, M. C. #1H | 11,800 | 38930245 |
| 468362 | Oct 2, 1997 | Oct 2, 1997 | Tmbr/Sharp Drilling, Inc. | Reagan | Rio Grande Mud #1 | 9,800 | 38334864 |
| 467547 | Sep 12, 1997 | Sep 12, 1997 | Tmbr/Sharp Drilling, Inc. | Midland | Willis #1A | 9,200 | 32933906 |
| 463295 | Jun 4, 1997 | Jun 4, 1997 | Tmbr/Sharp Drilling, Inc. | Glasscock | Jones "46" #1 | 10,100 | 17332779 |
| 461505 | Apr 22, 1997 | Apr 22, 1997 | Tmbr/Sharp Drilling, Inc. | Glasscock | Glass "22" #1 | 10,000 | 17332764 |
| 460038 | Mar 18, 1997 | Mar 18, 1997 | Tmbr/Sharp Drilling, Inc. | Crane | Apache University 30-47 #1 | 5,000 | 10334498 |
| 452070 | Aug 29, 1996 | Aug 29, 1996 | Tmbr/Sharp Drilling, Inc. | Crane | Baxter-University 30-47 #1A | 12,000 | 10334437 |
| 452070Amendment | Aug 29, 1996 | Aug 29, 1996 | Tmbr/Sharp Drilling, Inc. | Crane | Baxter- Uniersity 30-47 #1A | 12,000 | 10334437 |
| 451506 | Aug 14, 1996 | Aug 14, 1996 | Tmbr/Sharp Drilling, Inc. | Crane | Baxter - University #1 | 12,000 | 10334433 |
| 450269 | Jul 11, 1996 | Jul 11, 1996 | Tmbr/Sharp Drilling, Inc. | Ector | Edwards B #5 | 4,800 | 13537233 |
| 450269Amendment | Jul 11, 1996 | Jul 11, 1996 | Tmbr/Sharp Drilling, Inc. | Ector | Edwards B #5 | 4,800 | 13537233 |
| 450269Amendment | Jul 11, 1996 | Jul 11, 1996 | Tmbr/Sharp Drilling, Inc. | Ector | Edwards B #5 | 4,800 | 13537233 |
| 449882 | Jul 1, 1996 | Jul 1, 1996 | Tmbr/Sharp Drilling, Inc. | Ector | Edwards B II #5 | 8,000 | 13537230 |
| 449882Amendment | Jul 1, 1996 | Jul 1, 1996 | Tmbr/Sharp Drilling, Inc. | Ector | Edwards B II #5 | 8,000 | 13537230 |
| 447210 | Apr 18, 1996 | Apr 18, 1996 | Tmbr/Sharp Drilling, Inc. | Upton | Windham #1 | 10,300 | 46133633 |
| 445565 | Mar 5, 1996 | Mar 5, 1996 | Tmbr/Sharp Drilling, Inc. | Howard | Connally Unit #1 | 10,100 | 22735002 |
| 443963 | Jan 22, 1996 | Jan 22, 1996 | Tmbr/Sharp Drilling, Inc. | Gaines | Arco - Mobil "A" #1 | 12,500 | 16534943 |
| 443077 | Dec 20, 1995 | Dec 20, 1995 | Tmbr/Sharp Drilling, Inc. | Yoakum | Seaberry #1 | 5,190 | 50134094 |
| 439257 | Aug 23, 1995 | Aug 23, 1995 | Tmbr/Sharp Drilling, Inc. | Glasscock | Sherrod-Books Unit #1 | 8,200 | 17332549 |
| 435906 | May 15, 1995 | May 15, 1995 | Tmbr/Sharp Drilling, Inc. | Gaines | Arco-Mobil #1 | 12,500 | 16534869 |
| 432561 | Feb 6, 1995 | Feb 6, 1995 | Tmbr/Sharp Drilling, Inc. | Gaines | Shelton "404" #1 | 11,250 | 16534831 |
| 432561Amendment | Feb 6, 1995 | Feb 6, 1995 | Tmbr/Sharp Drilling, Inc. | Gaines | Shelton "404" #1 | 11,250 | 16534831 |
| 428526 | Sep 27, 1994 | Sep 27, 1994 | Tmbr/Sharp Drilling, Inc. | Midland | McAlister #1 | 9,300 | 32933125 |
| 414134 | Jul 21, 1993 | Jul 21, 1993 | Tmbr/Sharp Drilling, Inc. | Midland | Dameron Unit #1 | 8,900 | 32932866 |
| 413649 | Jul 8, 1993 | Jul 8, 1993 | Tmbr/Sharp Drilling, Inc. | Winkler | Wheeler #1 | 9,000 | 49532429 |
| 406691 | Dec 30, 1992 | Dec 30, 1992 | Tmbr/Sharp Drilling, Inc. | Midland | Nichols #1 | 8,800 | 32932723 |
| 396770 | Feb 21, 1992 | Feb 21, 1992 | Tmbr/Sharp Drilling, Inc. | Midland | Elkin "B" #1 | 8,300 | 32932547 |
| 390933 | Aug 15, 1991 | Aug 15, 1991 | Tmbr/Sharp Drilling, Inc. | Midland | Elkin #2 | 8,200 | 32932448 |
| 390245 | Jul 25, 1991 | Jul 25, 1991 | Tmbr/Sharp Drilling, Inc. | Reeves | Cleveland, R. #1 | 13,200 | 38931986 |
| 386590 | Apr 9, 1991 | Apr 9, 1991 | Tmbr/Sharp Drilling, Inc. | Garza | Williams, Blakey #1 | 8,400 | 16933199 |
| 383312 | Jan 10, 1991 | Jan 10, 1991 | Tmbr/Sharp Drilling, Inc. | Upton | Hill, A. P. #1 | 8,900 | 46133127 |
| 381394 | Nov 21, 1990 | Nov 21, 1990 | Tmbr/Sharp Drilling, Inc. | Kent | Mays, W. A. #1 | 7,200 | 26331412 |
| 377810 | Sep 11, 1990 | Sep 11, 1990 | Tmbr/Sharp Drilling, Inc. | Glasscock | Calverly #401 | 9,600 | 17332091 |
| 376700 | Aug 16, 1990 | Aug 16, 1990 | Tmbr/Sharp Drilling, Inc. | Crane | Page-Edwards #1 | 12,600 | 10334076 |
| 371095 | Mar 20, 1990 | Mar 20, 1990 | Tmbr/Sharp Drilling, Inc. | Borden | Barr #1 | 7,700 | 03331439 |
| 356667 | Mar 3, 1989 | Mar 3, 1989 | Tmbr/Sharp Drilling, Inc. | Terry | Page-Riley #1 | 11,800 | 44531541 |
| 351920 | Oct 4, 1988 | Oct 4, 1988 | Tmbr/Sharp Drilling, Inc. | Glasscock | Lloyd, Jancie "23" #1 | 8,600 | 17332055 |
| 349927 | Aug 8, 1988 | Aug 8, 1988 | Tmbr/Sharp Drilling, Inc. | Loving | Page-Johnson #143 | 15,600 | 30130834 |
| 347272 | Jun 1, 1988 | Jun 1, 1988 | Tmbr/Sharp Drilling, Inc. | Dawson | Dean, R. K. #4301A | 10,250 | 11531331 |
| 345773 | Apr 27, 1988 | Apr 27, 1988 | Tmbr/Sharp Drilling, Inc. | Reagan | Hyde & Wiggins #1 | 3,500 | 38333887 |
| 340683 | Dec 31, 1987 | Dec 31, 1987 | Tmbr/Sharp Drilling, Inc. | Andrews | Butler, L. L. #2 | 14,000 | 00335995 |
| 336712 | Oct 1, 1987 | Oct 1, 1987 | Tmbr/Sharp Drilling, Inc. | Howard | Adams, Clara #1 | 9,200 | 22734204 |
| 335759 | Sep 10, 1987 | Sep 10, 1987 | Tmbr/Sharp Drilling, Inc. | Ector | Averitt, W. T. #1 | 5,700 | 13535635 |
| 329913 | May 7, 1987 | May 7, 1987 | Tmbr/Sharp Drilling, Inc. | Andrews | Butler, L. L. #1 | 14,000 | 00335811 |