| 690912 | Feb 25, 2010 | Feb 25, 2010 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) #36 | 5,800 | 16537109 |
| 690916 | Feb 24, 2010 | Feb 24, 2010 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) #37 | 5,800 | 16537128 |
| 690911 | Feb 24, 2010 | Feb 24, 2010 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andreas) Unit #35 | 5,800 | 16537127 |
| 690911Amendment | Feb 24, 2010 | Feb 24, 2010 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andreas) Unit #35 | 5,800 | 16537127 |
| 673751 | Oct 28, 2008 | Oct 28, 2008 | Voskamp Exploration, Inc. | Yoakum | Chatterton #8 | 8,500 | 50134198 |
| 667437 | Aug 11, 2008 | Aug 11, 2008 | Voskamp Exploration, Inc. | Yoakum | Sue Stevens #6 | 8,600 | 50135564 |
| 663901 | Jun 23, 2008 | Jun 23, 2008 | Voskamp Exploration, Inc. | Yoakum | Sue Stevens #5 | 8,600 | 50135569 |
| 663901Amendment | Jun 23, 2008 | Jun 23, 2008 | Voskamp Exploration, Inc. | Yoakum | Sue Stevens #5 | 8,600 | 50135569 |
| 663882 | Jun 21, 2008 | Jun 21, 2008 | Voskamp Exploration, Inc. | Yoakum | Jones "A" #1 | 5,400 | 50135545 |
| 658521 | Apr 15, 2008 | Apr 15, 2008 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #34 | 5,800 | 16536913 |
| 642595 | Sep 14, 2007 | Sep 14, 2007 | Voskamp Exploration, Inc. | Yoakum | Stevens, Sue #7 | 8,700 | 50135445 |
| 632330 | Feb 21, 2007 | Feb 21, 2007 | Voskamp Exploration, Inc. | Yoakum | Dowell "A" #5 | 8,600 | 50135415 |
| 623594 | Aug 31, 2006 | Aug 31, 2006 | Voskamp Exploration, Inc. | Yoakum | Jones #2R | 5,400 | 50135375 |
| 615827 | Mar 14, 2006 | Mar 14, 2006 | Voskamp Exploration, Inc. | Yoakum | Dowell "A" #7R | 8,550 | 50110024 |
| 612097 | Feb 10, 2006 | Feb 10, 2006 | Voskamp Exploration, Inc. | Yoakum | Stevens, Sue #8 | 8,550 | 50135297 |
| 603664 | Jul 20, 2005 | Jul 20, 2005 | Voskamp Exploration, Inc. | Yoakum | Mc Can #5 | 5,500 | 50135234 |
| 603662 | Jul 20, 2005 | Jul 20, 2005 | Voskamp Exploration, Inc. | Gaines | Wasson #2A | 6,950 | 16536392 |
| 603661 | Jul 20, 2005 | Jul 20, 2005 | Voskamp Exploration, Inc. | Yoakum | State Hilburn #1 | 5,500 | 50135233 |
| 603660 | Jul 20, 2005 | Jul 20, 2005 | Voskamp Exploration, Inc. | Yoakum | Bennett "A" #1 | 5,450 | 50135232 |
| 603659 | Jul 20, 2005 | Jul 20, 2005 | Voskamp Exploration, Inc. | Yoakum | Mc Can #4 | 5,500 | 50135231 |
| 555975 | Jan 12, 2005 | Jan 12, 2005 | Voskamp Exploration, Inc. | Yoakum | Mc Can #3 | 5,500 | 50135093 |
| 555096 | Dec 22, 2004 | Dec 22, 2004 | Voskamp Exploration, Inc. | Yoakum | Santa FE (63159) #2 | 5,500 | 50135079 |
| 554496 | Dec 10, 2004 | Dec 10, 2004 | Voskamp Exploration, Inc. | Yoakum | Bennett #1 | 5,500 | 50135077 |
| 554496Amendment | Dec 10, 2004 | Dec 10, 2004 | Voskamp Exploration, Inc. | Yoakum | Bennett #1 | 5,500 | 50135077 |
| 547742 | Jul 8, 2004 | Jul 8, 2004 | Voskamp Exploration, Inc. | Yoakum | Mc Can, J. W. #2 | 5,500 | 50135026 |
| 541144 | Jan 28, 2004 | Jan 28, 2004 | Voskamp Exploration, Inc. | Gaines | Odc #1 | 6,000 | 16536105 |
| 538059 | Oct 31, 2003 | Oct 31, 2003 | Voskamp Exploration, Inc. | Yoakum | Frost, J. W. #1 | 5,900 | 50134908 |
| 531383 | May 6, 2003 | May 6, 2003 | Voskamp Exploration, Inc. | Bastrop | Carter #1 | 2,500 | 02131559 |
| 528847 | Mar 4, 2003 | Mar 4, 2003 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #31 | 5,900 | 16535953 |
| 528846 | Mar 4, 2003 | Mar 4, 2003 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #32 | 5,850 | 16535954 |
| 528845 | Mar 4, 2003 | Mar 4, 2003 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #33 | 5,850 | 16535955 |
| 524931 | Oct 31, 2002 | Oct 31, 2002 | Voskamp Exploration, Inc. | Bastrop | Brinkley #3 | 2,800 | 02131554 |
| 524932 | Oct 30, 2002 | Oct 30, 2002 | Voskamp Exploration, Inc. | Bastrop | Brinkley #4 | 2,800 | 02131555 |
| 521650 | Jul 12, 2002 | Jul 12, 2002 | Voskamp Exploration, Inc. | Bastrop | Brinkley #2 | 2,900 | 02131551 |
| 518919 | Apr 15, 2002 | Apr 15, 2002 | Voskamp Exploration, Inc. | Yoakum | Willard #3 | 2,900 | 50134706 |
| 518849 | Apr 10, 2002 | Apr 10, 2002 | Voskamp Exploration, Inc. | Bastrop | Brinkley #1 | 3,000 | 02131549 |
| 515505 | Nov 21, 2001 | Nov 21, 2001 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #30 | 5,750 | 16535801 |
| 515504 | Nov 21, 2001 | Nov 21, 2001 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #29 | 5,750 | 16535802 |
| 512838 | Aug 29, 2001 | Aug 29, 2001 | Voskamp Exploration, Inc. | Williamson | Prikryl #1 | 1,200 | 49130422 |
| 500855 | Oct 18, 2000 | Oct 18, 2000 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #26 | 5,800 | 16535643 |
| 500854 | Oct 18, 2000 | Oct 18, 2000 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #28 | 5,800 | 16535646 |
| 500853 | Oct 18, 2000 | Oct 18, 2000 | Voskamp Exploration, Inc. | Gaines | Seminole NE (San Andres) Unit #27 | 5,800 | 16535645 |
| 500852 | Oct 18, 2000 | Oct 18, 2000 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #25 | 5,800 | 16535644 |
| 494579 | May 5, 2000 | May 5, 2000 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #9H | 6,200 | 16534695 |
| 486265 | Aug 2, 1999 | Aug 2, 1999 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #2A | 5,825 | 16535439 |
| 486265Amendment | Aug 2, 1999 | Aug 2, 1999 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #2A | 5,825 | 16535439 |
| 483999 | Apr 27, 1999 | Apr 27, 1999 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #23W | 5,800 | 16535412 |
| 483938 | Apr 23, 1999 | Apr 23, 1999 | Voskamp Exploration, Inc. | Gaines | H & J #1 | 5,800 | 16535411 |
| 481004 | Dec 4, 1998 | Dec 4, 1998 | Voskamp Exploration, Inc. | Gaines | Seminole, NE, (San Andres) Unit #22 | 5,800 | 16535381 |
| 481005 | Nov 30, 1998 | Nov 30, 1998 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #24 | 5,800 | 16535382 |
| 471674 | Jan 2, 1998 | Jan 2, 1998 | Voskamp Exploration, Inc. | Gaines | Seminole NE (San Andres) Unit #21W | 5,850 | 16535318 |
| 463459 | Jun 20, 1997 | Jun 20, 1997 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #10W | 5,800 | 16535196 |
| 463460 | Jun 19, 1997 | Jun 19, 1997 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #17W | 5,800 | 16535197 |
| 463458 | Jun 19, 1997 | Jun 19, 1997 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unt #18W | 5,800 | 16535198 |
| 463458Amendment | Jun 19, 1997 | Jun 19, 1997 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unt #18W | 5,800 | 16535198 |
| 460282 | Mar 27, 1997 | Mar 27, 1997 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (SA) Unit #3W | 5,860 | 16533440 |
| 457930 | Feb 3, 1997 | Feb 3, 1997 | Voskamp Exploration, Inc. | Yoakum | Chatterton, Pearl #8 | 9,600 | 50134198 |
| 457930Amendment | Feb 3, 1997 | Feb 3, 1997 | Voskamp Exploration, Inc. | Yoakum | Chatterton, Pearl #8 | 9,600 | 50134198 |
| 457579 | Jan 27, 1997 | Jan 27, 1997 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #15W | 5,850 | 16535116 |
| 457579Amendment | Jan 27, 1997 | Jan 27, 1997 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (San Andres) Unit #15W | 5,850 | 16535116 |
| 451931 | Aug 26, 1996 | Aug 26, 1996 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (SA) Unit #12 | 5,900 | 16535047 |
| 451930 | Aug 26, 1996 | Aug 26, 1996 | Voskamp Exploration, Inc. | Gaines | Seminole, NE (SA) Unit #7 | 5,900 | 16535046 |
| 443552 | Jan 10, 1996 | Jan 10, 1996 | Voskamp Exploration, Inc. | Yoakum | Willard #2A | 2,900 | 50134114 |
| 429306 | Oct 25, 1994 | Oct 25, 1994 | Voskamp Exploration, Inc. | Gaines | Travis #1 | 12,000 | 16534803 |
| 429306Amendment | Oct 25, 1994 | Oct 25, 1994 | Voskamp Exploration, Inc. | Gaines | Upton #1A | 5,705 | 16534803 |
| 420696 | Feb 2, 1994 | Feb 2, 1994 | Voskamp Exploration, Inc. | Gaines | Riggan "C" #2 | 5,800 | 16534694 |
| 420695 | Feb 2, 1994 | Feb 2, 1994 | Voskamp Exploration, Inc. | Gaines | Riggan "B" #2 | 5,800 | 16534693 |
| 420694 | Feb 2, 1994 | Feb 2, 1994 | Voskamp Exploration, Inc. | Gaines | Riggan "B" #1 | 5,800 | 16534695 |
| 420693 | Feb 2, 1994 | Feb 2, 1994 | Voskamp Exploration, Inc. | Gaines | Riggan "C" #1 | 5,800 | 16534696 |
| 419702 | Dec 29, 1993 | Dec 29, 1993 | Voskamp Exploration, Inc. | Gaines | Upton #2 | 5,900 | 16533440 |
| 417725 | Nov 1, 1993 | Nov 1, 1993 | Voskamp Exploration, Inc. | Gaines | Riggan "A" #3 | 5,850 | 16534655 |
| 417724 | Nov 1, 1993 | Nov 1, 1993 | Voskamp Exploration, Inc. | Gaines | Riggan "A" #4 | 5,850 | 16534656 |
| 413289 | Jul 1, 1993 | Jul 1, 1993 | Voskamp Exploration, Inc. | Gaines | Riggan "A" #2 | 5,850 | 16534606 |
| 411348Amendment | May 4, 1993 | May 4, 1993 | Voskamp Exploration, Inc. | Yoakum | Elliott #2 | 9,000 | 50133843 |
| 410761 | Apr 19, 1993 | Apr 19, 1993 | Voskamp Exploration, Inc. | Gaines | Riggan "A" #1 | 5,700 | 16534581 |
| 408691 | Mar 1, 1993 | Mar 1, 1993 | Voskamp Exploration, Inc. | Gaines | Riggan #4 | 5,600 | 16534555 |
| 407969 | Feb 16, 1993 | Feb 16, 1993 | Voskamp Exploration, Inc. | Gaines | Riggan #3 | 5,600 | 16534547 |
| 404270 | Oct 12, 1992 | Oct 12, 1992 | Voskamp Exploration, Inc. | Gaines | Riggan #2 | 5,600 | 16534518 |
| 399968 | Jun 10, 1992 | Jun 10, 1992 | Voskamp Exploration, Inc. | Gaines | Riggan #1 | 5,600 | 16533302 |
| 397119 | Mar 10, 1992 | Mar 10, 1992 | Voskamp Exploration, Inc. | Gaines | Neeley #1 | 5,750 | 16534449 |
| 395276 | Jan 9, 1992 | Jan 9, 1992 | Voskamp Exploration, Inc. | Terry | Santa FE #1 | 5,700 | 44531654 |
| 392809 | Oct 23, 1991 | Oct 23, 1991 | Voskamp Exploration, Inc. | Terry | "Odc" #1 | 5,700 | 44531653 |
| 390914 | Aug 19, 1991 | Aug 19, 1991 | Voskamp Exploration, Inc. | Yoakum | Elliott #1 | 8,600 | 50133718 |
| 380968 | Nov 26, 1990 | Nov 26, 1990 | Voskamp Exploration, Inc. | Milam | Wilson, J. #2 | 1,850 | 33133304 |
| 370876 | Mar 26, 1990 | Mar 26, 1990 | Voskamp Exploration, Inc. | Yoakum | State Elmore #1 | 11,850 | 50133297 |
| 370535 | Mar 19, 1990 | Mar 19, 1990 | Voskamp Exploration, Inc. | Dawson | Riddle #2H | 4,800 | 11532578 |
| 364959 | Oct 16, 1989 | Oct 16, 1989 | Voskamp Exploration, Inc. | Upton | Rush #1 | 6,100 | 46132868 |
| 362972 | Aug 23, 1989 | Aug 23, 1989 | Voskamp Exploration, Inc. | Yoakum | McCan, J.W. #1 | 5,350 | 50133519 |
| 356841 | Mar 10, 1989 | Mar 10, 1989 | Voskamp Exploration, Inc. | Dawson | Schooler #2 | 7,600 | 11532519 |
| 356448 | Mar 3, 1989 | Mar 3, 1989 | Voskamp Exploration, Inc. | Dawson | Riddle #1 | 3,900 | 11532515 |
| 354615 | Dec 29, 1988 | Dec 29, 1988 | Voskamp Exploration, Inc. | Dawson | Stewart "A" #2 | 3,900 | 11532511 |
| 351371 | Sep 20, 1988 | Sep 20, 1988 | Voskamp Exploration, Inc. | Dawson | Schooler #1 | 7,650 | 11532503 |
| 350304 | Aug 22, 1988 | Aug 22, 1988 | Voskamp Exploration, Inc. | Dawson | Stewart "A" #1 | 4,000 | 11532501 |
| 347726 | Jun 15, 1988 | Jun 15, 1988 | Voskamp Exploration, Inc. | Gaines | Wasson #2 | 6,950 | 16533978 |
| 342401 | Feb 9, 1988 | Feb 9, 1988 | Voskamp Exploration, Inc. | Gaines | Wasson #1 | 6,950 | 16533896 |
| 338328 | Nov 5, 1987 | Nov 5, 1987 | Voskamp Exploration, Inc. | Gaines | Riley, T. S. #1 | 6,600 | 16533791 |
| 338254 | Nov 4, 1987 | Nov 4, 1987 | Voskamp Exploration, Inc. | Dawson | Stewart #3 | 4,000 | 11532452 |
| 327430 | Mar 11, 1987 | Mar 11, 1987 | Voskamp Exploration, Inc. | Dawson | Stewart #2 | 4,000 | 11532425 |
| 325763 | Jan 26, 1987 | Jan 26, 1987 | Voskamp Exploration, Inc. | Dawson | Stewart #1 | 7,670 | 11531582 |
| 305800 | Aug 29, 1986 | Aug 29, 1986 | Voskamp Exploration, Inc. | Milam | Wilson, J. #1 | 4,000 | 33133063 |