| Chapman J.O. C #13942-355-33764 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Catahoula Cons.) | PluggedOil | 5,950 | Nov 9, 2005 | 1 | Dec 2015 |
| Chapman J. O. D #14642-355-33763 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Catahoula Cons.) | ActiveInjection | 7,210 | Nov 3, 2005 | 1 | Feb 2007 |
| Chapman J. O. #13842-355-33757 | Decker Operating Co. L.L.C. | NuecesMobil-David (Frio 12 600) | Temporarily abandonedGas | 13,250 | Sep 2, 2005 | 2 | Oct 2016 |
| Battle Unit No. 1 #142-157-32283 | Decker Operating Co. L.L.C. | Fort BendLissie South (Frio 4350) | PluggedGas | 6,000 | Aug 30, 2004 | 1 | Feb 2021 |
| Scott O. H. #142-481-34684 | Decker Operating Co. L.L.C. | WhartonSpanish Camp (Sorrel Sand) | PluggedGas | 5,775 | Aug 11, 2004 | 1 | Nov 2004 |
| Callaway #142-481-34676 | Decker Operating Co. L.L.C. | WhartonHungerford North (3050) | PluggedGas | 5,750 | Jul 29, 2004 | 1 | Nov 2019 |
| Hawes Edwin III Estate Gas Unit #242-481-34608 | Decker Operating Co. L.L.C. | WhartonOld Wagon Wheel (Frio) | PluggedGas | 5,000 | Jan 8, 2004 | 1 | Apr 2004 |
| Hudgins Division #142-481-34587 | Decker Operating Co. L.L.C. | WhartonHungerford (3100) | PluggedGas | 5,000 | Nov 6, 2003 | 1 | Dec 2004 |
| Boedeker Unit #142-481-34580 | Decker Operating Co. L.L.C. | WhartonOld Wagon Wheel (Frio) | PluggedGas | 6,000 | Oct 23, 2003 | 1 | Dec 2005 |
| Chapman Ranch B #23742-355-33584 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (9650) | PluggedGas | 11,500 | Sep 29, 2003 | 1 | Mar 2016 |
| Koonce #142-481-34545 | Decker Operating Co. L.L.C. | WhartonHungerford N.(4300) | PluggedGas | 4,700 | May 16, 2003 | 1 | Jun 2007 |
| Macha Gas Unit No. 2 #242-481-34536 | Decker Operating Co. L.L.C. | WhartonMary Macha (Frio) | PluggedGas | 6,000 | Apr 25, 2003 | 1 | Jan 2008 |
| Macha Gas Unit No. 1 #142-481-34489 | Decker Operating Co. L.L.C. | WhartonMary Macha (Frio) | PluggedGas | 6,500 | Dec 19, 2002 | 1 | Jan 2006 |
| Locke Gas Unit #142-481-34491 | Decker Operating Co. L.L.C. | WhartonHungerford N. (3300) | PluggedGas | 6,500 | Dec 6, 2002 | 1 | Apr 2006 |
| Hlavinka Gas Unit #242-481-34492 | Decker Operating Co. L.L.C. | WhartonHungerford North (4750) | PluggedGas | 6,500 | Dec 6, 2002 | 2 | Sep 2007 |
| Macha Gas Unit No. 2 #142-481-34487 | Decker Operating Co. L.L.C. | WhartonMary Macha (Frio) | PluggedGas | 6,500 | Nov 25, 2002 | 1 | Nov 2007 |
| Mangum #142-481-34473 | Decker Operating Co. L.L.C. | WhartonHungerford North (5000) | PluggedGas | 6,000 | Oct 17, 2002 | 1 | Mar 2016 |
| Hawes Edwin III Estate #142-481-34456 | Decker Operating Co. L.L.C. | WhartonOld Wagon Wheel (Frio) | PluggedGas | 6,000 | Jun 20, 2002 | 1 | May 2003 |
| Chapman J.O. #13442-355-33306 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 3,525 | Jun 12, 2002 | 4 | May 2003 |
| Chapman Ranch #68042-355-33462 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 3,000 | May 28, 2002 | 1 | May 2005 |
| Champman J.O. #13642-355-33418 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Upper Frio Cons.) | PluggedOil | 7,040 | Mar 4, 2002 | 3 | Jan 2012 |
| Sorrel Marcial III #142-481-34424 | Decker Operating Co. L.L.C. | WhartonSpanish Camp South (4000 Frio) | PluggedGas | 5,500 | Dec 17, 2001 | 1 | Apr 2007 |
| Chapman Ranch #58042-355-33435 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 4,000 | Dec 10, 2001 | 1 | Mar 2005 |
| Chapman Ranch #48042-355-33436 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (L-23) | PluggedGas | 4,000 | Dec 10, 2001 | 1 | Apr 2003 |
| Bain R. A. #142-349-34653 | Decker Operating Co. L.L.C. | NavarroAlligator Creek (Bossier) | PluggedGas | 11,400 | Sep 21, 2001 | 2 | Apr 2017 |
| Chapman J. O. #13542-355-33359 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 6,375 | Apr 20, 2001 | 1 | Nov 2004 |
| Chapman Ranch #380-C42-355-33345 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 3,500 | Apr 6, 2001 | 2 | Nov 2004 |
| Chapman J. O. #12042-355-30801 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 5,060 | Mar 2, 2001 | 2 | Oct 2004 |
| Chapman Ranch #18042-355-33145 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (2450) | PluggedGas | 3,800 | Jan 31, 2001 | 2 | Jun 2002 |
| Gaus-Janssen #142-255-31423 | Decker Operating Co. L.L.C. | KarnesRunge E. (Hackney) | PluggedGas | 11,000 | Nov 8, 2000 | 1 | Mar 2005 |
| Chapman J.O. #6842-355-30449 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Catahoula Cons.) | PluggedOil | 6,500 | Jul 13, 2000 | 4 | Dec 2015 |
| Chapman J.O. #6142-355-30428 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Catahoula Cons.) | PluggedOil | 7,000 | Jun 15, 2000 | 3 | Dec 2015 |
| Porche #342-239-33063 | Decker Operating Co. L.L.C. | JacksonBright Falcon (Yegua 9600) | ActiveGas | 10,060 | Apr 4, 2000 | 1 | Oct 2021 |
| Chapman J. O. #13142-355-33218 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 4,125 | Mar 22, 2000 | 1 | Dec 2012 |
| Chapman Ranch #17342-355-33136 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 3,500 | Feb 16, 2000 | 2 | May 2004 |
| Champman J.O. #8442-355-30502 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Upper Frio Cons.) | PluggedOil | 7,557 | Jan 20, 2000 | 5 | Jan 2012 |
| Chapman J. O. #130-T42-355-33203 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 5,000 | Dec 16, 1999 | 1 | Dec 2012 |
| Chapman Ranch #27442-355-33197 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 3,300 | Dec 3, 1999 | 1 | May 2004 |
| Chapman J.O. #4942-355-30387 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Catahoula Cons.) | PluggedOil | 7,745 | Nov 23, 1999 | 2 | Dec 2015 |
| Chapman Ranch #28042-355-33193 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 3,300 | Nov 23, 1999 | 1 | Apr 2007 |
| Chapman Ranch #87442-355-32923 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 4,700 | Nov 17, 1999 | 2 | Mar 2015 |
| Chapman J. O. #5542-355-30406 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 3,350 | Oct 28, 1999 | 1 | — |
| Chapman Ranch #17442-355-33167 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 3,400 | Sep 2, 1999 | 1 | Jun 2005 |
| Chapman Ranch #111642-355-33146 | Decker Operating Co. L.L.C. | NuecesChapman Ranch S. (Mass. 4700) | PluggedGas | 5,000 | Mar 19, 1999 | 1 | Jul 2002 |
| Chapman J. O. #38 F42-355-30044 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (4780) | PluggedOil | 6,500 | Apr 29, 1998 | 2 | Oct 2004 |
| Chapman J. O. #83WI42-355-30499 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (C-18) | PluggedOil | 6,000 | Feb 18, 1998 | 2 | Apr 1993 |
| Chapman J.O. #12742-355-33064 | Decker Operating Co. L.L.C. | NuecesMobil-David SW. (Howell Hight) | PluggedGas | 12,900 | Jan 21, 1997 | 1 | Dec 2012 |
| Chapman J. O. #12342-355-31476 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 10,850 | Jan 4, 1996 | 6 | Jun 2011 |
| Chapman Ranch 73 #142-355-33020 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 4,800 | Nov 30, 1995 | 2 | Aug 2012 |
| Chapman J. O. #89 H42-355-30517 | Decker Operating Co. L.L.C. | NuecesChapman Ranch (Miocene Cons.) | PluggedGas | 7,750 | Apr 26, 1995 | 1 | Mar 2017 |