| 547008Amendment | Jun 21, 2004 | Jun 21, 2004 | Arrington,david H. Oil & Gas,inc | Johnson | West, Mae "A" #1 HH | 7,000 | 25130215 |
| 547007 | Jun 21, 2004 | Jun 21, 2004 | Arrington,david H. Oil & Gas,inc | Goliad | Lucky Seven Quill #1 | 6,000 | 17533633 |
| 544251 | Apr 19, 2004 | Apr 19, 2004 | Arrington,david H. Oil & Gas,inc | Johnson | White Wing Coachman #2HH | 7,500 | 25130185 |
| 544251Amendment | Apr 19, 2004 | Apr 19, 2004 | Arrington,david H. Oil & Gas,inc | Johnson | White Wing Coachman "B" #2H | 7,500 | 25130185 |
| 544250 | Apr 16, 2004 | Apr 16, 2004 | Arrington,david H. Oil & Gas,inc | Johnson | White Wing Coachman #1OB | 8,000 | 25130186 |
| 544250Amendment | Apr 16, 2004 | Apr 16, 2004 | Arrington,david H. Oil & Gas,inc | Johnson | White Wing Coachman "A" #1H | 8,999 | 25130186 |
| 526415 | Jan 6, 2003 | Jan 6, 2003 | Arrington,david H. Oil & Gas,inc | Winkler | McCabe Lease #30 | 11,500 | 49532622 |
| 526415Amendment | Jan 6, 2003 | Jan 6, 2003 | Arrington,david H. Oil & Gas,inc | Winkler | McCabe #30 | 11,200 | 49532622 |
| 504461 | Jan 26, 2001 | Jan 26, 2001 | Arrington,david H. Oil & Gas,inc | Terrell | Yellow Sally #1 | 9,000 | 44330523 |
| 493618 | Apr 4, 2000 | Apr 4, 2000 | Arrington,david H. Oil & Gas,inc | King | Beadhead Stone-Fly "41" #1H | 5,500 | 26932375 |
| 493618Amendment | Apr 4, 2000 | Apr 4, 2000 | Arrington,david H. Oil & Gas,inc | King | Beadhead Stone-Fly "41" #1H | 5,500 | 26932375 |
| 490863 | Jan 6, 2000 | Jan 6, 2000 | Arrington,david H. Oil & Gas,inc | King | Beadhead Hare's Ear 41 #1 | 6,000 | 26932361 |
| 487868 | Oct 21, 1999 | Oct 21, 1999 | Arrington,david H. Oil & Gas,inc | King | Beadhead Emerger 65 #1 | 6,000 | 26932351 |
| 487078 | Sep 10, 1999 | Sep 10, 1999 | Arrington,david H. Oil & Gas,inc | King | Beadhead Scud 53 #1 | 6,000 | 26932347 |
| 487078Amendment | Sep 10, 1999 | Sep 10, 1999 | Arrington,david H. Oil & Gas,inc | King | Beadhead Scud 53 #1 | 6,000 | 26932347 |
| 457607 | Jan 28, 1997 | Jan 28, 1997 | Arrington,david H. Oil & Gas,inc | Ector | Holt, O. B. Sr., et al /NCT-C/ #3 | 4,475 | 13508573 |
| 457835 | Jan 27, 1997 | Jan 27, 1997 | Arrington,david H. Oil & Gas,inc | Winkler | McCabe Lease #30 | 9,200 | 49532622 |
| 451687Amendment | Aug 22, 1996 | Aug 22, 1996 | Arrington,david H. Oil & Gas,inc | Ector | Holt, O. B. Sr., et Al #1 | 5,260 | 13501748 |
| 432034 | Jan 19, 1995 | Jan 19, 1995 | Arrington,david H. Oil & Gas,inc | Winkler | Haley #1302 | 18,200 | 49532469 |
| 419082 | Dec 7, 1993 | Dec 7, 1993 | Arrington,david H. Oil & Gas,inc | Winkler | McCutchen, K. O. #3 | 3,438 | 49504269 |
| 419081 | Dec 7, 1993 | Dec 7, 1993 | Arrington,david H. Oil & Gas,inc | Winkler | McCutchen, W. A. #21 | 3,525 | 49531755 |
| 415131 | Nov 15, 1993 | Nov 15, 1993 | Arrington,david H. Oil & Gas,inc | Winkler | McCutchen, W.A. #7 | 4,800 | 49500891 |
| 415132 | Oct 19, 1993 | Oct 19, 1993 | Arrington,david H. Oil & Gas,inc | Winkler | McCutchen, W.A. #13 | 4,800 | 49500898 |
| 409699 | May 20, 1993 | May 20, 1993 | Arrington,david H. Oil & Gas,inc | Winkler | Lavender #1 | 7,834 | 49503445 |
| 387894 | May 14, 1991 | May 14, 1991 | Arrington,david H. Oil & Gas,inc | Winkler | Bell "A" #3 | 2,900 | 49532166 |
| 387894Amendment | May 14, 1991 | May 14, 1991 | Arrington,david H. Oil & Gas,inc | Winkler | Bell "A" #3 | 2,900 | 49532166 |
| 376426 | Aug 10, 1990 | Aug 10, 1990 | Arrington,david H. Oil & Gas,inc | Winkler | Vest "B" #1 | 3,500 | 49530425 |
| 371922 | Apr 13, 1990 | Apr 13, 1990 | Arrington,david H. Oil & Gas,inc | Winkler | Donosky "B" #1 | 3,600 | 49532327 |
| 367791 | Jan 2, 1990 | Jan 2, 1990 | Arrington,david H. Oil & Gas,inc | Winkler | Underwood #3 | 3,500 | 49532306 |
| 361411 | Jul 12, 1989 | Jul 12, 1989 | Arrington,david H. Oil & Gas,inc | Winkler | Underwood #2 | 3,450 | 49505891 |
| 359653 | May 23, 1989 | May 23, 1989 | Arrington,david H. Oil & Gas,inc | Winkler | Donosky #1 | 3,400 | 49532156 |
| 355966 | Feb 21, 1989 | Feb 21, 1989 | Arrington,david H. Oil & Gas,inc | Sterling | Stewart "B" #1 | 8,000 | 43131979 |
| 353216 | Nov 10, 1988 | Nov 10, 1988 | Arrington,david H. Oil & Gas,inc | Winkler | Underwood #1 | 3,500 | 49532221 |
| 353216Amendment | Nov 10, 1988 | Nov 10, 1988 | Arrington,david H. Oil & Gas,inc | Winkler | Underwood #1 | 3,500 | 49532221 |
| 349687 | Aug 3, 1988 | Aug 3, 1988 | Arrington,david H. Oil & Gas,inc | Winkler | Kermit Development #3 | 3,400 | 49532208 |
| 349687Amendment | Aug 3, 1988 | Aug 3, 1988 | Arrington,david H. Oil & Gas,inc | Winkler | Kermit Development #3 | 3,400 | 49532208 |
| 349641 | Aug 1, 1988 | Aug 1, 1988 | Arrington,david H. Oil & Gas,inc | Winkler | Charlesworth #1 | 3,550 | 49532209 |
| 349641Amendment | Aug 1, 1988 | Aug 1, 1988 | Arrington,david H. Oil & Gas,inc | Winkler | Charlesworth #1 | 3,550 | 49532209 |
| 347489 | Jun 10, 1988 | Jun 10, 1988 | Arrington,david H. Oil & Gas,inc | Winkler | Cummins E #4 | 3,084 | 49504448 |
| 346394 | May 11, 1988 | May 11, 1988 | Arrington,david H. Oil & Gas,inc | Sterling | Stewart "A" #2 | 7,800 | 43131943 |
| 341317 | Jan 12, 1988 | Jan 12, 1988 | Arrington,david H. Oil & Gas,inc | Andrews | Cobb, Ora #8 | 12,430 | 00305413 |
| 339848 | Dec 28, 1987 | Dec 28, 1987 | Arrington,david H. Oil & Gas,inc | Winkler | Bell "A" #3 | 3,300 | 49532166 |
| 339848Amendment | Dec 28, 1987 | Dec 28, 1987 | Arrington,david H. Oil & Gas,inc | Winkler | Bell "A" #3 | 3,300 | 49532166 |
| 339848Amendment | Dec 28, 1987 | Dec 28, 1987 | Arrington,david H. Oil & Gas,inc | Winkler | Bell "A" #3 | 3,300 | 49532166 |
| 339152 | Nov 23, 1987 | Nov 23, 1987 | Arrington,david H. Oil & Gas,inc | Sterling | Stewart A #1 | 7,800 | 43131899 |
| 337020 | Oct 14, 1987 | Oct 14, 1987 | Arrington,david H. Oil & Gas,inc | Winkler | Kermit Development #2 | 3,400 | 49532157 |
| 336911 | Oct 7, 1987 | Oct 7, 1987 | Arrington,david H. Oil & Gas,inc | Winkler | Donosky #1 | 3,400 | 49532156 |
| 330944 | Jun 3, 1987 | Jun 3, 1987 | Arrington,david H. Oil & Gas,inc | Sterling | Stewart 11 #1 | 7,800 | 43131849 |
| 329793 | May 11, 1987 | May 11, 1987 | Arrington,david H. Oil & Gas,inc | Winkler | Hendrick "A" #12 | 3,100 | 49532115 |
| 322666 | Nov 10, 1986 | Nov 10, 1986 | Arrington,david H. Oil & Gas,inc | Winkler | Kermit Development #1 | 3,400 | 49532081 |
| 321526 | Oct 6, 1986 | Oct 6, 1986 | Arrington,david H. Oil & Gas,inc | Winkler | Bell "A" #2 | 3,300 | 49532075 |
| 304952 | Aug 7, 1986 | Aug 7, 1986 | Arrington,david H. Oil & Gas,inc | Winkler | Hendrick #1 | 4,400 | 49510279 |