| 616860Amendment | May 20, 2008 | May 20, 2008 | Whitehead Prod. Co., Inc. | Colorado | Sampson, M. #1 | 9,322 | 08930581 |
| 654382 | Feb 9, 2008 | Feb 9, 2008 | Whitehead Prod. Co., Inc. | Lavaca | Drabek #1 | 10,000 | 28533460 |
| 653555 | Jan 30, 2008 | Jan 30, 2008 | Whitehead Prod. Co., Inc. | Brazoria | Juliff #1 | 9,500 | 03932994 |
| 648435 | Nov 6, 2007 | Nov 6, 2007 | Whitehead Prod. Co., Inc. | Nueces | Levy #1 | 7,500 | 35533874 |
| 647971 | Oct 26, 2007 | Oct 26, 2007 | Whitehead Prod. Co., Inc. | Matagorda | Safehaven #1 | 7,000 | 32132195 |
| 643754 | Sep 18, 2007 | Sep 18, 2007 | Whitehead Prod. Co., Inc. | Matagorda | Stovall #1 #1 | 9,900 | 32132185 |
| 643754Amendment | Sep 18, 2007 | Sep 18, 2007 | Whitehead Prod. Co., Inc. | Matagorda | Stovall #1 #1 | 10,500 | 32132185 |
| 643754Amendment | Sep 18, 2007 | Sep 18, 2007 | Whitehead Prod. Co., Inc. | Matagorda | Stovall #1 #1 | 10,500 | 32132185 |
| 634932 | Mar 19, 2007 | Mar 19, 2007 | Whitehead Prod. Co., Inc. | Colorado | Otto, R. #1 | 10,400 | 08932524 |
| 626275 | Sep 21, 2006 | Sep 21, 2006 | Whitehead Prod. Co., Inc. | Hill | Harper SWD #1 | 9,000 | 21730331 |
| 626275Amendment | Sep 21, 2006 | Sep 21, 2006 | Whitehead Prod. Co., Inc. | Hill | Harper SWD #1 | 10,500 | 21730331 |
| 617907 | Apr 20, 2006 | Apr 20, 2006 | Whitehead Prod. Co., Inc. | Colorado | Donald Helcamp #1 | 10,500 | 08932479 |
| 617907Amendment | Apr 20, 2006 | Apr 20, 2006 | Whitehead Prod. Co., Inc. | Colorado | Helmcamp, Donald #1 | 10,500 | 08932479 |
| 616860 | Mar 31, 2006 | Mar 31, 2006 | Whitehead Prod. Co., Inc. | Colorado | Sampson, M. #1 | 9,322 | 08930581 |
| 616860Amendment | Mar 31, 2006 | Mar 31, 2006 | Whitehead Prod. Co., Inc. | Colorado | Sampson, M. #1 | 9,322 | 08930581 |
| 462175 | May 16, 1997 | May 16, 1997 | Whitehead Prod. Co., Inc. | Jack | Bailey #1 | 3,246 | 23730877 |
| 432298 | Jan 30, 1995 | Jan 30, 1995 | Whitehead Prod. Co., Inc. | Callahan | Macdonald #1 | 4,290 | 05936116 |
| 419992 | Jan 7, 1994 | Jan 7, 1994 | Whitehead Prod. Co., Inc. | Archer | Mahler #1 | 5,320 | 00938938 |
| 408209 | Jan 19, 1993 | Jan 19, 1993 | Whitehead Prod. Co., Inc. | Archer | Pappan #1 | 5,300 | 00940688 |
| 397545 | Mar 18, 1992 | Mar 18, 1992 | Whitehead Prod. Co., Inc. | Menard | Bradford, Melinda M. #1 | 4,000 | 32730746 |
| 378917 | Oct 3, 1990 | Oct 3, 1990 | Whitehead Prod. Co., Inc. | Jack | Smith, L. B. #1 | 5,450 | 23731946 |
| 214164 | Sep 22, 1983 | Sep 22, 1983 | Whitehead Prod. Co., Inc. | Brown | Blake #1 | 2,000 | 04933768 |
| 191874 | Apr 18, 1983 | Apr 18, 1983 | Whitehead Prod. Co., Inc. | Jack | Shawver, A. D. #1 | 5,600 | 23732102 |
| 191872 | Apr 18, 1983 | Apr 18, 1983 | Whitehead Prod. Co., Inc. | Jack | Bowling #1 | 5,600 | 23732185 |
| 184659 | Jan 28, 1983 | Jan 28, 1983 | Whitehead Prod. Co., Inc. | Jack | Scarber #1 | 6,400 | 23734972 |
| 175014 | Oct 20, 1982 | Oct 20, 1982 | Whitehead Prod. Co., Inc. | Jack | Bailey #2 | 4,999 | 23733869 |
| 163837 | Jun 16, 1982 | Jun 16, 1982 | Whitehead Prod. Co., Inc. | Montague | Powers #1 | 7,000 | 33731935 |
| 143920 | Dec 11, 1981 | Dec 11, 1981 | Whitehead Prod. Co., Inc. | Brown | Neindorff -A- #2 | 2,000 | 04932966 |
| 141771 | Nov 30, 1981 | Nov 30, 1981 | Whitehead Prod. Co., Inc. | Childress | Mullins, C. W. #1 | 8,000 | 07530117 |
| 122472 | Jun 24, 1981 | Jun 24, 1981 | Whitehead Prod. Co., Inc. | Jack | Bailey #2 | 4,999 | 23733869 |
| 102356 | Dec 15, 1980 | Dec 15, 1980 | Whitehead Prod. Co., Inc. | Schleicher | McInnis #1 | 5,150 | 41330985 |
| 100299 | Nov 24, 1980 | Nov 24, 1980 | Whitehead Prod. Co., Inc. | Brown | Neindorff B #1 | 1,600 | 04932530 |
| 100298 | Nov 24, 1980 | Nov 24, 1980 | Whitehead Prod. Co., Inc. | Brown | Neindorff A #1 | 2,000 | 04932529 |
| 100075 | Nov 21, 1980 | Nov 21, 1980 | Whitehead Prod. Co., Inc. | Jack | Tomlinson #1 | 5,999 | 23733459 |
| 117243 | Nov 6, 1980 | Nov 6, 1980 | Whitehead Prod. Co., Inc. | Jack | Mitchell #1 | 6,100 | 23732351 |
| 93018 | Sep 18, 1980 | Sep 18, 1980 | Whitehead Prod. Co., Inc. | Palo Pinto | Blackwell-Glover #1 | 4,780 | 36332469 |
| 92852 | Sep 17, 1980 | Sep 17, 1980 | Whitehead Prod. Co., Inc. | Palo Pinto | Fowler #1 | 4,794 | 36332464 |
| 75982 | Mar 24, 1980 | Mar 24, 1980 | Whitehead Prod. Co., Inc. | Jack | Thweatt #1 | 6,450 | 23733092 |
| 74149 | Mar 4, 1980 | Mar 4, 1980 | Whitehead Prod. Co., Inc. | Young | Majors-Nantz #1 | 4,676 | 50333774 |
| 69213 | Jan 10, 1980 | Jan 10, 1980 | Whitehead Prod. Co., Inc. | Jack | Ellis, G. #1 | 5,999 | 23732987 |
| 62690 | Nov 1, 1979 | Nov 1, 1979 | Whitehead Prod. Co., Inc. | Parker | Long #1 | 5,900 | 36731781 |
| 62484 | Oct 31, 1979 | Oct 31, 1979 | Whitehead Prod. Co., Inc. | Jack | Turner #1 | 6,200 | 23732871 |
| 61753 | Oct 24, 1979 | Oct 24, 1979 | Whitehead Prod. Co., Inc. | Jack | Turner #1 | 5,960 | 23732860 |
| 58264 | Sep 18, 1979 | Sep 18, 1979 | Whitehead Prod. Co., Inc. | Jack | Barham-Carney #1 | 500 | 23732612 |
| 48466 | May 15, 1979 | May 15, 1979 | Whitehead Prod. Co., Inc. | Jack | Bailey #1 | 4,950 | 23730877 |
| 47838 | May 4, 1979 | May 4, 1979 | Whitehead Prod. Co., Inc. | Jack | Barham-Carney #1 | 5,296 | 23732612 |
| 46035 | Apr 10, 1979 | Apr 10, 1979 | Whitehead Prod. Co., Inc. | Palo Pinto | Robbins, Lottie-Patterson #1 | 5,138 | 36332109 |
| 42539 | Feb 14, 1979 | Feb 14, 1979 | Whitehead Prod. Co., Inc. | Jack | Sartain-Mason #1 | 5,900 | 23732527 |
| 35055 | Oct 19, 1978 | Oct 19, 1978 | Whitehead Prod. Co., Inc. | Jack | Eason #1 | 2,600 | 23732408 |
| 30739 | Aug 16, 1978 | Aug 16, 1978 | Whitehead Prod. Co., Inc. | Jack | Mitchell Unit #1 | 6,100 | 23732351 |
| 29646 | Jul 18, 1978 | Jul 18, 1978 | Whitehead Prod. Co., Inc. | Jack | Baker, M. H. #1 | 5,399 | 23783541 |
| 14324 | Dec 15, 1977 | Dec 15, 1977 | Whitehead Prod. Co., Inc. | Jack | Shawver, A. D. #1 | 5,600 | 23732102 |
| 14323 | Dec 15, 1977 | Dec 15, 1977 | Whitehead Prod. Co., Inc. | Jack | Gonce, E. #1 | 5,600 | 23732101 |
| 786 | Oct 26, 1977 | Oct 26, 1977 | Whitehead Prod. Co., Inc. | Jack | Thacker #1 | 5,900 | 23731930 |
| 7198 | Sep 16, 1977 | Sep 16, 1977 | Whitehead Prod. Co., Inc. | Jack | Clerihew, M. #1 | 6,500 | 23731999 |
| 764 | Jun 15, 1977 | Jun 15, 1977 | Whitehead Prod. Co., Inc. | Palo Pinto | Woodward #1 | 5,900 | 36331738 |
| 629 | Jun 13, 1977 | Jun 13, 1977 | Whitehead Prod. Co., Inc. | Jack | Barham #1 | 4,800 | 23731368 |