| Priesmeyer G-3-160838 | Cox & Perkins Exploration, Inc. | Phase Four (8300 Yegua) | Wharton | 1 | 10.8K | 1.29M | Nov 1996 – Feb 2000 |
| Stafford-Menefee G-2-198407 | Cox & Perkins Exploration, Inc. | Lost Bridge (Yegua 9400) | Jackson | 1 | 10.1K | 320K | Jul 2003 – Sep 2008 |
| Hawes, Edwin Gas Unit G-3-158673 | Cox & Perkins Exploration, Inc. | Menefee, N. (Yegua 8425) | Wharton | 1 | 10.1K | 542K | Feb 1996 – Apr 2012 |
| Mollnar No. 1 Gas Unit G-3-156789 | Cox & Perkins Exploration, Inc. | Phase Four (10640 Yegua) | Wharton | 1 | 9.42K | 494K | Aug 1995 – Oct 1999 |
| Pierce Estate G-3-155118 | Cox & Perkins Exploration, Inc. | El Campo (D-3 Yegua) | Wharton | 1 | 9.35K | 110K | Jun 1995 – Feb 1997 |
| Batt G-2-138654 | Cox & Perkins Exploration, Inc. | Bright Falcon (Yegua 10,300) | Jackson | 1 | 9.34K | 2.58M | by Jan 1993 – Apr 2010 |
| Pierce Estate G-3-127888 | Cox & Perkins Exploration, Inc. | El Campo, NE (Yegua) | Wharton | 1 | 8.9K | 114K | by Jan 1993 – Mar 1994 |
| Lopez-Canales G-4-108093 | Cox & Perkins Exploration, Inc. | Mestena Grande (Queen City, E.) | Jim Hogg | 1 | 8.33K | 304K | by Jan 1993 – Apr 2002 |
| Judith G-3-160359 | Cox & Perkins Exploration, Inc. | Gracey Ranch (Yegua 6775) | Colorado | 1 | 8.22K | 1.01M | Jun 1996 – Dec 2000 |
| Reese O-3-13858 | Cox & Perkins Exploration, Inc. | Giddings (Austin Chalk-3) | Fayette | 1 | 8.16K | 20.1K | by Jan 1993 – Jun 1998 |
| Pierce Estate -D- G-3-135850 | Cox & Perkins Exploration, Inc. | El Campo, NE (Yegua) | Wharton | 1 | 7.26K | 101K | by Jan 1993 – Jun 1995 |
| Stovall-Payne G-3-202082 | Cox & Perkins Exploration, Inc. | Gresham (8400) | Wharton | 1 | 6.6K | 941K | May 2004 – Oct 2010 |
| Stovall-Payne G-3-190147 | Cox & Perkins Exploration, Inc. | Gresham (9700) | Wharton | 1 | 6.54K | 993K | Jul 2002 – Apr 2004 |
| Mahalitc O-3-23372 | Cox & Perkins Exploration, Inc. | Gracey Ranch (Yegua 6850) | Colorado | 2 | 6.46K | 6.29K | Aug 1997 – Apr 1998 |
| Pierce Estate G-3-135139 | Cox & Perkins Exploration, Inc. | El Campo, NE (Yegua) | Wharton | 1 | 6.45K | 65.2K | by Jan 1993 – Jul 1994 |
| Lopez-Canales G-4-110106 | Cox & Perkins Exploration, Inc. | Mestena Grande (Queen City, E.) | Jim Hogg | 1 | 6K | 499K | by Jan 1993 – Apr 2002 |
| Crook, George H. O-3-12543 | Cox & Perkins Exploration, Inc. | Caldwell (Austin Chalk) | Burleson | 2 | 5.73K | 56.4K | by Jan 1993 – Oct 1999 |
| Stafford, Maurine L. et Al G-2-109230 | Cox & Perkins Exploration, Inc. | Lost Bridge (Yegua 9000) | Jackson | 1 | 5.07K | 989K | by Jan 1993 – Jan 1997 |
| Drushel-Newson G-2-128169 | Cox & Perkins Exploration, Inc. | Lost Bridge (Yegua 8700) | Jackson | 1 | 3.81K | 535K | by Jan 1993 – Dec 1998 |
| Porche G-2-183372 | Cox & Perkins Exploration, Inc. | Bright Falcon (Yegua 9600) | Jackson | 1 | 3.47K | 47.3K | Jan 2001 – Oct 2002 |
| Skinner Unit G-2-150298 | Cox & Perkins Exploration, Inc. | Lost Bridge, N. (Yegua 7850) | Jackson | 1 | 3.37K | 243K | Apr 1994 – Jan 1996 |
| George G-3-167699 | Cox & Perkins Exploration, Inc. | Garwood, East (Yegua 6600) | Colorado | 1 | 3.37K | 302K | Feb 1998 – Feb 2000 |
| Allen, L. P. et Al O-3-12804 | Cox & Perkins Exploration, Inc. | Caldwell (Austin Chalk) | Burleson | 1 | 3.09K | 42.6K | by Jan 1993 – Apr 1997 |
| Haines, Lydie Grabow O-3-12595 | Cox & Perkins Exploration, Inc. | Caldwell (Austin Chalk) | Burleson | 1 | 2.87K | 14.8K | by Jan 1993 – May 1994 |
| Porche G-2-130123 | Cox & Perkins Exploration, Inc. | Bright Falcon (Yegua 9900) | Jackson | 1 | 2.81K | 267K | by Jan 1993 – Aug 2000 |
| Stovall-Payne G-3-192273 | Cox & Perkins Exploration, Inc. | Gresham (9700) | Wharton | 1 | 2.16K | 685K | Nov 2002 – Apr 2010 |
| Matthews G-3-160360 | Cox & Perkins Exploration, Inc. | Gracey Ranch (Yegua 6740) | Colorado | 1 | 2.06K | 416K | Jul 1996 – Feb 1999 |
| Matcek Unit O-3-12937 | Cox & Perkins Exploration, Inc. | Caldwell (Austin Chalk) | Burleson | 1 | 1.89K | 4.38K | Jul 1993 – Nov 1993 |
| McKinney, John O-3-14711 | Cox & Perkins Exploration, Inc. | Caldwell (Austin Chalk) | Burleson | 1 | 1.81K | 23.8K | by Jan 1993 – Oct 1994 |
| Campbell O-1-12757 | Cox & Perkins Exploration, Inc. | Pearsall (Austin Chalk) | Dimmit | 2 | 1.59K | 8 | by Jan 1993 – Sep 1993 |
| Karen Ann G-3-163064 | Cox & Perkins Exploration, Inc. | Hillje, N. (5050) | Wharton | 1 | 1.57K | 822K | Aug 1996 – Oct 2000 |
| Andrews, et Al G-2-252957 | Cox & Perkins Exploration, Inc. | Conquistador (Janak Sand) | Lavaca | 1 | 1.57K | 81.9K | May 2009 – Oct 2011 |
| Britt-Jarratt Unit O-3-12961 | Cox & Perkins Exploration, Inc. | Caldwell (Austin Chalk) | Burleson | 1 | 1.44K | 1.35K | Jul 1993 – Oct 1994 |
| Vrana G-3-212526 | Cox & Perkins Exploration, Inc. | Black Owl (Yegua 8300) | Wharton | 1 | 1.3K | 38.1K | Oct 2005 – Mar 2010 |
| Wegenhoft G-3-184445 | Cox & Perkins Exploration, Inc. | Garwood, East (Yegua 6600) | Colorado | 1 | 1.19K | 134K | Aug 2001 – Apr 2003 |
| Pierce Estate -D- G-3-131006 | Cox & Perkins Exploration, Inc. | El Campo, NE (Yegua) | Wharton | 1 | 1.16K | 23K | by Jan 1993 – Jun 1994 |
| Britt-Jarratt Unit #2 O-3-13422 | Cox & Perkins Exploration, Inc. | Stone City (Austin Chalk) | Burleson | 1 | 715 | 1.84K | Jul 1993 – Oct 1994 |
| Robert-McHenry G-2-206527 | Cox & Perkins Exploration, Inc. | Lost Bridge (Yegua 10,700) | Jackson | 1 | 598 | 158K | Nov 2004 – Feb 2006 |
| Evans Gas Unit G-2-240789 | Cox & Perkins Exploration, Inc. | Hallettsville (9500) | Lavaca | 1 | 597 | 26.4K | Apr 2008 – Jan 2009 |
| M Plus Land G-3-184218 | Cox & Perkins Exploration, Inc. | Garwood, East (Yegua 6600) | Colorado | 1 | 550 | 23.3K | Jul 2001 – Feb 2002 |
| Barrera G-4-130418 | Cox & Perkins Exploration, Inc. | Santa Cruz (Yegua 8030) | Duval | 1 | 545 | 9.1K | by Jan 1993 – Dec 1993 |
| Junek O-3-21339 | Cox & Perkins Exploration, Inc. | Little Pheasant (Frio J) | Matagorda | 1 | 534 | 7 | by Jan 1993 – Jul 1993 |
| Mahalitc G-3-168023 | Cox & Perkins Exploration, Inc. | Gracey Ranch (Wilcox 9600) | Colorado | 1 | 523 | 4.4K | Nov 1997 – Apr 1998 |
| Couey G-3-155710 | Cox & Perkins Exploration, Inc. | Black Owl (Frio 4900) | Wharton | 1 | 516 | 540K | Sep 1995 – Nov 1996 |
| Pierce Estate G-3-125336 | Cox & Perkins Exploration, Inc. | El Campo, NE (Yegua) | Wharton | 1 | 446 | 19.4K | by Jan 1993 – Apr 1994 |
| Schrader O-3-16165 | Cox & Perkins Exploration, Inc. | Caldwell (Austin Chalk) | Burleson | 1 | 390 | 11.5K | by Jan 1993 – Jun 1994 |
| Newsom-Valenta Unit G-2-124843 | Cox & Perkins Exploration, Inc. | Lost Bridge (Yegua 7900) | Jackson | 1 | 382 | 90.5K | by Jan 1993 – Aug 1994 |
| Gadeke Gas Unit G-3-166182 | Cox & Perkins Exploration, Inc. | Black Owl (4430) | Wharton | 1 | 303 | 459K | Nov 1997 – Nov 1999 |
| Couey G-3-161708 | Cox & Perkins Exploration, Inc. | Trans-Tex (2800) | Wharton | 1 | 282 | 390K | Jan 1997 – May 2001 |
| Stonehenge Ltd. O-3-12434 | Cox & Perkins Exploration, Inc. | Caldwell (Austin Chalk) | Burleson | 1 | 262 | 2.27K | by Jan 1993 – Aug 1993 |