| State Tract 84 G-3-169427 | Umbrella Point, SE. (F-18) | Chambers | 1 | 5.3K | 1.93M | Feb 1998 – Mar 2005 |
| West Ranch "A" G-2-188861 | West Ranch (Ward) | Jackson | 1 | 9.38K | 454K | Dec 2001 – Feb 2005 |
| West Ranch "A" G-2-149028 | West Ranch (Mitchell) | Jackson | 1 | 0 | 349K | Mar 1994 – Nov 2003 |
| State Tract 65 G-3-176364 | Umbrella Point (F-28) | Chambers | 1 | 169K | 21.8M | Jul 1999 – Jun 2003 |
| West Ranch -A- G-2-127477 | West Ranch (Ward) | Jackson | 1 | 0 | 91K | Jun 1998 – May 2002 |
| West Ranch "A" G-2-146752 | West Ranch (Noble) | Jackson | 1 | 0 | 204 | Mar 2002 – Mar 2002 |
| West Ranch Unit No. 1 G-2-184729 | West Ranch (Frio 7300) | Jackson | 1 | 6.91K | 51.1K | Jul 2000 – Feb 2002 |
| Toney, M. H., Mrs. G-2-181523 | West Ranch (6850) | Jackson | 1 | 16.6K | 148K | Jul 2000 – Dec 2001 |
| State Tract 77 G-3-165906 | Umbrella Point (F-28) | Chambers | 1 | 6.27K | 5.2M | Aug 1997 – Jul 2001 |
| Texas State Tract 117 G-2-138507 | Panther Reef, SW. (Frio G-1) | Calhoun | 1 | 244K | 4.37M | Jan 1993 – Sep 1999 |
| State Tract 75 G-3-169708 | Umbrella Point, SE. (F-18) | Chambers | 1 | 39.1K | 4.6M | Jun 1998 – Sep 1999 |
| State Tract 116 G-2-175299 | Panther Reef, S.W. (Frio H-2) | Calhoun | 1 | 7.97K | 222K | Oct 1998 – Sep 1999 |
| State Tract 65 G-3-167739 | White Heron, N. (Price Sd.) | Chambers | 1 | 57.1K | 1.76M | Jan 1998 – Aug 1998 |
| Texas State Tract 116 G-2-44715 | Panther Reef, SW. (Frio G-1) | Calhoun | 1 | 2.78K | 1.03M | Jan 1993 – Jul 1998 |
| State Tract 75 G-3-163386 | Umbrella Point (F-28) | Chambers | 1 | 28.7K | 2.29M | Dec 1996 – May 1998 |
| De la Garza Mineral Trust G-4-142384 | Picoso, E. (Carrizo 7800) | Webb | 1 | 6.44K | 1.52M | Jan 1993 – Dec 1997 |
| Goad G-14-167465 | Wildcat | Wheeler | 1 | 177 | 1 | Aug 1997 – Aug 1997 |
| Garcia, Cesar G-4-127853 | Four Sevens (8100 Yegua) | Duval | 1 | 5.27K | 416K | Jan 1993 – Apr 1997 |
| Toney, M. H., Mrs. G-2-151005 | West Ranch (Lavaca) | Jackson | 1 | 24.3K | 573K | Aug 1994 – Feb 1997 |
| Brockman, J. C. et Al G-3-158671 | Old Ocean (12,100) | Brazoria | 1 | 774 | 53K | Mar 1996 – Jun 1996 |
| Brockman, J.C. G-3-115609 | Old Ocean (Frio 12700) | Brazoria | 1 | 661 | 115K | Jan 1993 – Mar 1996 |
| Eskridge G-13-132807 | Gilley, W. (Atoka Congl.) | Jack | 1 | 0 | 4.45K | Jan 1993 – Feb 1996 |
| Ortiz G/U G-4-119746 | Four Sevens (8100 Yegua) | Duval | 1 | 1.99K | 92.6K | Jan 1993 – Jan 1996 |
| State Tract 343 G-3-146804 | Point Bolivar, N. (S-4B) | Galveston | 1 | 17.4K | 356K | May 1993 – Sep 1995 |
| Mitchell G-14-149065 | Ricks (Morrow, Upper) | Lipscomb | 1 | 506 | 16.9K | Apr 1994 – Sep 1995 |
| Craft "B" G-13-142198 | Gilley, W. (Atoka Congl.) | Jack | 1 | 58 | 15.8K | Jan 1993 – Aug 1995 |
| Cuellar, V. Gas Unit 1 G-4-121564 | Four Sevens (8100 Yegua) | Duval | 1 | 1.09K | 85.3K | Jan 1993 – Mar 1995 |
| RFR Frio 15 GU G-3-133432 | Red Fish Reef (FB a-2, Frio 15B) | Chambers | 1 | 1.67K | 697K | Jan 1993 – Feb 1995 |
| Toney, Mrs. M.H. G-2-115982 | West Ranch (Ward) | Jackson | 1 | 475 | 55.2K | Jan 1993 – Sep 1994 |
| Alamo National Bank Trustee G-1-66893 | Little Alamo (6100) | McMullen | 1 | 0 | 4.33K | Jan 1993 – Aug 1994 |
| RFR Tract 204 G-3-118706 | Red Fish Reef (Frio 1) | Chambers | 1 | 133 | 347K | Jan 1993 – May 1994 |
| T.S.T. 117 G-2-122596 | Panther Reef, SW. (Frio G-1) | Calhoun | 1 | 19.6K | 192K | Jan 1993 – Jan 1994 |
| McCelland, J.W. G.U. #2 G-2-106155 | Limes (Wilcox 9900) | Live Oak | 1 | 766 | 7.82K | Jan 1993 – Jan 1994 |
| De Porras Gas Unit G-4-30458 | Loma Blanca (9000) | Brooks | 1 | 0 | 523 | Jan 1993 – Jun 1993 |
| State Tract 343 G-3-141183 | Point Bolivar, N. (S-7) | Galveston | 1 | 744 | 40.3K | Jan 1993 – Mar 1993 |
| Booker Townsite G-14-135544 | Booker, N. (Morrow, Upper) | Ochiltree | 1 | 3 | 3.26K | Jan 1993 – Mar 1993 |
| Orange Ctny Dev. Co. Inc. UC G-3-121750 | Echo (9910) | Orange | 1 | 0 | 0 | — |
| Alamo National Bank Trustee G-1-151742 | Green Branch (Wilcox 2-D) | McMullen | 1 | 0 | 0 | — |
| Texas State Tract 125 G-2-3511 | Panther Reef (Frio E-4) | Calhoun | 1 | 0 | 0 | — |
| West Ranch "A" G-2-146382 | West Ranch (Glasscock) | Jackson | 1 | 0 | 0 | — |
| West Ranch 'A' G-2-146758 | West Ranch (Toney) | Jackson | 1 | 0 | 0 | — |
| West Ranch "A" G-2-149184 | West Ranch (Marginulina 5000) | Jackson | 1 | 0 | 0 | — |
| West Ranch 'A' G-2-155622 | West Ranch (Mitchell) | Jackson | 1 | 0 | 0 | — |
| Gordin Estate G-2-157809 | La Ward, North (6100) | Jackson | 1 | 0 | 0 | — |
| West Ranch "A" G-2-188859 | West Ranch (Ward) | Jackson | 1 | 0 | 0 | — |
| West Ranch "A" G-2-200588 | West Ranch (Ward) | Jackson | 1 | 0 | 0 | — |
| — G-2-200822 | West Ranch (Ward) | — | 0 | 0 | 0 | — |
| RFR Tract 224 G-3-35397 | Red Fish Reef (FB a Frio 11) | Chambers | 1 | 0 | 0 | — |
| Galveston Bay State -C- G-3-43161 | Fishers Reef (Frio 5-A) | — | 0 | 0 | 0 | — |
| RFR Tract 224 G-3-44476 | Red Fish Reef (FB a-2, Frio 12) | Chambers | 1 | 0 | 0 | — |