| Buckner Unit a #142-497-33872 | Expro Engineering Inc. only | Wise, TXPark Springs (Miss.) | PluggedGas | 7,000 | Jun 24, 2022 | — | — |
| P R Smith #1HHZ42-121-33974 | Expro Engineering, Inc. only | Denton, TX | Not on schedule | 9,000 | May 10, 2010 | — | — |
| Manhattan #1HHZ42-113-30192 | Expro Engineering, Inc. only | Dallas, TX | Not on schedule | 10,000 | Aug 24, 2009 | — | — |
| Buffalo Run Ranch #142-035-30146 | Expro Engineering Inc. only | Bosque, TXNewark East (Barnett Shale) | PluggedGas | 8,999 | Aug 14, 2009 | — | — |
| UD-Dallas GU #2HHZ42-113-30147 | Expro Engineering Inc. only | Dallas, TXNewark East (Barnett Shale) | PluggedGas | 9,500 | Feb 27, 2009 | — | — |
| UD-Dallas Gas Unit #1HHZ42-113-30189 | Expro Engineering Inc. only | Dallas, TXNewark East (Barnett Shale) | PluggedGas | 9,500 | Feb 27, 2009 | — | — |
| Armstrong-Huggins #2HHZ42-121-33196 | Expro Engineering Inc. only | Denton, TXNewark East (Barnett Shale) | PluggedGas | 8,500 | Feb 24, 2009 | — | — |
| Parkwest Unit #1H42-113-30164 | Expro Engineering, Inc. only | Dallas, TX | Not on schedule | 12,000 | Oct 4, 2008 | — | — |
| Powdermaker Unit #1HHZ42-121-33593 | Expro Engineering, Inc. only | Denton, TX | Not on schedule | 9,000 | Sep 30, 2008 | — | — |
| Powdermaker Unit #2HHZ42-121-33609 | Expro Engineering, Inc. only | Denton, TX | Not on schedule | 9,000 | Sep 30, 2008 | — | — |
| Jones Berniece #4HZ42-121-33208 | Expro Engineering Inc. only | Denton, TXNewark East (Barnett Shale) | ActiveGas | 8,985 | Aug 21, 2007 | — | — |
| D.C.C. #9HZ42-121-33034 | Expro Engineering Inc. only | Denton, TXNewark East (Barnett Shale) | ActiveGas | 8,871 | Jan 23, 2007 | — | — |
| South 80 Resources #1HHZ42-121-33014 | Expro Engineering, Inc. only | Denton, TX | Not on schedule | 8,700 | Dec 21, 2006 | — | — |
| South 80 Resources #2HHZ42-121-33015 | Expro Engineering, Inc. only | Denton, TX | Not on schedule | 8,700 | Dec 21, 2006 | — | — |
| Jones Berniece #3HHZ42-121-33019 | Expro Engineering Inc. only | Denton, TXNewark East (Barnett Shale) | ActiveGas | 8,819 | Dec 21, 2006 | — | — |
| Cottle Jerry #242-417-38658 | Expro Engineering Inc. only | Shackelford, TXShackelford County Regular (Gas) | PluggedGas | 5,000 | Nov 28, 2006 | — | — |
| Cottle Jerry #142-417-38654 | Expro Engineering Inc. only | Shackelford, TXShackelford County Regular (Gas) | PluggedGas | 5,000 | Oct 20, 2006 | — | — |
| Jones Berniece #242-121-32953 | Expro Engineering Inc. only | Denton, TXNewark East (Barnett Shale) | ActiveGas | 8,905 | Sep 8, 2006 | — | — |
| Fossil Hill #4 HHZ42-439-30996 | Expro Engineering Inc. only | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 10,000 | Sep 17, 2004 | — | — |
| Fossil Hill #3 HHZ42-439-30997 | Expro Engineering Inc. only | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 10,000 | Sep 17, 2004 | — | — |
| Jones Berniece #142-121-32285 | Expro Engineering Inc. only | Denton, TXNewark East (Barnett Shale) | ActiveGas | 8,935 | Mar 24, 2004 | — | — |
| Springside-A #442-121-32251 | Expro Engineering Inc. only | Denton, TXNewark East (Barnett Shale) | PluggedGas | 8,990 | Feb 13, 2004 | — | — |
| Springside-A #142-121-31411 | Expro Engineering Inc. only | Denton, TXNewark East (Barnett Shale) | PluggedGas | 9,400 | Feb 6, 2002 | — | — |
| West Comm #142-439-30228 | Expro Engineering, Inc. only | Tarrant, TX | Not on schedule | 7,600 | Jun 15, 2001 | — | — |
| West Comm #242-439-30229 | Expro Engineering, Inc. only | Tarrant, TX | Not on schedule | 7,600 | Jun 15, 2001 | — | — |
| Tnct #342-167-31348 | Expro Engineering Inc. only | Galveston, TXGillock East (Big Gas) | PluggedGas | 10,000 | Nov 27, 2000 | — | — |
| Wadsworth Ranch #242-321-30461 | Expro Engineering Inc. only | Matagorda, TXMidfields SW. (8870) | PluggedOil | 9,514 | Jul 12, 1995 | — | — |
| Metzger SWD #4DR42-321-31704 | Expro Engineering Inc. only | Matagorda, TXBay City East | PluggedOil | 2,500 | Apr 28, 1994 | — | — |
| Laraine Collup Oil Unit #142-321-30234 | Expro Engineering Inc. only | Matagorda, TXMidfields SW. (8800) | PluggedOil | 8,849 | Nov 23, 1993 | — | — |
| McCallum Bruce Gas Unit #142-321-30488 | Expro Engineering Inc. only | Matagorda, TXMidfields SW. (8550) | PluggedGas | 9,530 | Oct 23, 1990 | — | — |
| McCarty Unit #142-009-40149 | Expro Engineering Inc. only | Archer, TXWildcat | PluggedOil | 5,400 | Oct 23, 1989 | — | — |
| Magnolia-Morgan #1D42-003-10872 | Expro Engineering Inc. only | Andrews, TXBlock a-50 (Ellenburger) | ActiveInjection | 8,806 | Aug 8, 1988 | — | — |
| Young #242-503-39384 | Expro Engineering Inc. only | Young, TXRoye (Miss.) | PluggedOil | 4,999 | Feb 9, 1987 | — | — |
| Woods Heirs #142-429-34753 | Expro Engineering Inc. only | Stephens, TXCrystal Falls (Miss. 4340) | PluggedOil | 4,600 | Jul 11, 1986 | — | — |
| Wadley #342-503-39250 | Expro Engineering Inc. only | Young, TXRoye (Ellenberger) | PluggedOil | 4,999 | May 6, 1986 | — | — |
| Ferguson #142-503-38900 | Expro Engineering Inc. only | Young, TXMaxey (Caddo) | PluggedOil | 4,600 | Aug 15, 1985 | — | — |
| Young #142-503-38901 | Expro Engineering Inc. only | Young, TXYoung County Regular | PluggedOil | 4,600 | Aug 15, 1985 | — | — |
| Wadley #242-503-38902 | Expro Engineering Inc. only | Young, TXBarbee (Atoka 3900) | PluggedOil | 4,500 | Aug 15, 1985 | — | — |
| Wadley #142-503-38873 | Expro Engineering Inc. only | Young, TXRoye (Miss.) | PluggedOil | 4,600 | Jul 25, 1985 | — | — |
| Berend J. #142-009-00033 | Expro Engineering Co. only | Archer, TXArcher County Regular | PluggedOil | 5,337 | Oct 24, 1983 | — | — |
| Abercrombie C. L. #242-009-37768 | Expro Engineering Inc. only | Archer, TXArcher County Regular | PluggedOil | 5,800 | Sep 23, 1983 | — | — |
| Kinder R. C. #1 D42-077-33188 | Expro Engineering Inc. only | Clay, TXArrowhead (Caddo) | PluggedOil | 6,500 | Sep 23, 1983 | — | — |
| Heaven #142-367-32444 | Expro Engineering Inc. only | Parker, TXMeeker (Conglomerate 3850) | PluggedGas | 5,900 | Jan 27, 1983 | — | — |
| Ferguson #142-503-36589 | Expro Engineering Inc. only | Young, TXHeather Conglomerate | PluggedOil | 4,500 | Dec 31, 1982 | — | — |
| Mestina Oil & Gas #1 F42-047-30041 | Expro Engineering Inc. only | Brooks, TXAlta Mesa N. (600) | PluggedGas | 1,036 | Sep 17, 1981 | — | — |
| Gest Ida #142-321-30796 | Expro Engineering Inc. only | Matagorda, TXMellon (10500) | PluggedGas | 12,000 | Oct 4, 1977 | — | — |
| Magnolia-Morgan #142-003-03360 | Expro Engineering Inc. only | Andrews, TXBlock a-50 (Ellenburger) | PluggedOil | — | — | — | — |
| Morgan A. M. Est. #142-003-03361 | Expro Engineering Inc. only | Andrews, TXBlock a-50 (Wichita) | ActiveOil | 9,007 | — | — | — |
| Rash O. L. #342-039-01250 | Expro Engineering Inc. only | Brazoria, TXManvel (Miocene) | PluggedOil | — | — | — | — |
| Rash O. L. #542-039-01252 | Expro Engineering Inc. only | Brazoria, TXManvel (Miocene) | Not on scheduleOil | — | — | — | — |