| Brown-Donner Unit A-567 G-6-153267 | Union Pacific Resources Company | Brookeland (Austin Chalk, 8800) | Newton | 1 | 370K | 2.15M | Dec 1994 – Aug 1998 |
| Arco Fee Unit A-121 G-6-151133 | Union Pacific Resources Company | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 254K | 2.6M | May 1994 – Mar 2000 |
| Mahlmann-Walther Unit G-3-141715 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 252K | 2.3M | Jan 1993 – Aug 1999 |
| Pocahontas Unit G-3-161527 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 245K | 929K | Nov 1996 – Aug 1999 |
| Terry, H. L. Unit G-3-146621 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Brazos | 1 | 215K | 2.05M | Jul 1993 – Aug 1999 |
| Allen G-3-145818 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Brazos | 1 | 188K | 1.3M | May 1993 – Aug 1999 |
| Franus Unit G-3-156437 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Grimes | 1 | 187K | 2.41M | Sep 1995 – Feb 2000 |
| McCullough-McCullough 'A' G-3-145083 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Brazos | 1 | 187K | 1.49M | Jan 1993 – Feb 2000 |
| Cannon Unit G-3-155696 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Grimes | 1 | 179K | 1.28M | Jun 1995 – Aug 1999 |
| Jawbreaker Unit G-3-151736 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 174K | 1.3M | Sep 1994 – Aug 1999 |
| Champion Int'l Unit A-1175 G-6-155820 | Union Pacific Resources Company | Brookeland (Austin Chalk, 8800) | Newton | 1 | 159K | 833K | Jul 1995 – Jan 1999 |
| Mueller-Korth Unit G-3-148108 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Lee | 1 | 155K | 751K | Jan 1994 – Aug 1999 |
| Champion a-334 Unit G-6-152455 | Union Pacific Resources Company | Brookeland (Austin Chalk, 8800) | Newton | 1 | 143K | 1.21M | Jul 1994 – Dec 1998 |
| Brazos Coal Ltd.-Terry "B" Unit G-3-146180 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Brazos | 1 | 134K | 915K | Jun 1993 – Aug 1999 |
| Wagnon Unit G-3-153709 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Grimes | 1 | 127K | 966K | Feb 1995 – Aug 1999 |
| Gibbs Bros. Unit G-6-149857 | Union Pacific Resources Company | Brookeland (Austin Chalk, 8800) | Newton | 1 | 88.2K | 472K | May 1994 – Jan 1999 |
| Arco-Fee a-990 Unit G-6-153675 | Union Pacific Resources Company | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 77.7K | 1.04M | Dec 1994 – Aug 1998 |
| Hoelscher, Alice B. G-3-143662 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Burleson | 1 | 67.3K | 723K | Jan 1993 – May 1996 |
| Bscu USA 27316 G-6-156998 | Union Pacific Resources Company | Brookeland (Austin Chalk, 8800) | Sabine | 1 | 65K | 709K | Mar 1995 – Dec 1998 |
| Roosevelt Unit G-3-151956 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 61.5K | 671K | May 1994 – Sep 1999 |
| Embesi Unit G-3-174197 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 59.9K | 502K | Jun 1999 – Oct 1999 |
| McCrary Unit G-3-156476 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Grimes | 1 | 39.1K | 356K | Oct 1995 – Aug 1999 |
| Yelderman-Bredthauer Unit G-3-142127 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Washington | 1 | 36.7K | 707K | Jan 1993 – Sep 2000 |
| Warrenton Amarado Unit G-3-147182 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 36.2K | 1.04M | Oct 1993 – Oct 1996 |
| Arco Fee Unit A-15 G-6-163658 | Union Pacific Resources Company | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 31.5K | 1.34M | Mar 1997 – Jul 1999 |
| Waltman-Chance Farms Unit G-3-144378 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Brazos | 1 | 17.3K | 89K | Jan 1993 – Feb 1997 |
| Buscha-Hempel Unit G-3-140238 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 15.3K | 223K | Jan 1993 – Aug 1996 |
| N.W. Oldenburg-Amarado Unit G-3-147603 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 14.2K | 256K | Nov 1993 – Jul 1999 |
| Eva Marie Unit G-3-170166 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 12.6K | 129K | Feb 1998 – Aug 1999 |
| Deerfield Unit G-3-159510 | Union Pacific Resources Company | Kurten (Georgetown) | Brazos | 1 | 12.5K | 401K | Jul 1996 – May 1998 |
| Oldenburg G-3-150965 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 11.5K | 407K | Jun 1994 – Aug 1996 |
| Peto Unit G-3-160724 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Washington | 1 | 10.3K | 55.7K | Jul 1996 – Jan 1998 |
| Williams Unit A-539 G-6-154487 | Union Pacific Resources Company | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 5.12K | 87.7K | Oct 1994 – Oct 1995 |
| Olden-Paull Unit G-3-144379 | Union Pacific Resources Company | Giddings (Georgetown, Gas) | Brazos | 1 | 4.81K | 100K | Jan 1993 – Mar 1993 |
| Doss, W. G-3-138399 | Union Pacific Resources Company | Wadsworth (I-Sand) | Matagorda | 1 | 3.46K | 199K | Jan 1993 – Jan 1995 |
| Becker Unit G-3-153826 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Washington | 1 | 2.46K | 3.97M | Mar 1995 – May 2000 |
| Goodall, J. D. G-3-136097 | Union Pacific Resources Company | Wadsworth, SE. (Discorbis B Sd.) | Matagorda | 1 | 2.38K | 24K | Jan 1993 – Mar 1994 |
| Moore, C.E. Unit G-6-142322 | Union Pacific Resources Company | Carthage (Travis Peak) | Panola | 1 | 2.14K | 133K | Jan 1993 – Jan 1998 |
| Williams-Wall Unit G-6-142701 | Union Pacific Resources Company | Carthage (Cotton Valley) | Panola | 1 | 2.11K | 214K | Jan 1993 – Oct 1996 |
| Caudle, Dahlia O. Unit #1 G-6-75726 | Union Pacific Resources Company | Carthage (Cotton Valley) | Panola | 1 | 1.9K | 24.6K | Jan 1993 – Apr 1995 |
| Neal, Sallie J. Unit G-6-133070 | Union Pacific Resources Company | Carthage (Cotton Valley) | Panola | 1 | 1.71K | 74.6K | Feb 1993 – Jan 1995 |
| Melanie G-3-112103 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Lee | 1 | 1.35K | 65.8K | Jan 1993 – Oct 1996 |
| Grace G-3-118945 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 1.35K | 121K | Jan 1993 – Sep 2000 |
| Cottonwood Bayou G-3-138687 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Burleson | 1 | 1.34K | 26.6K | Jan 1993 – Nov 1994 |
| Poellnitz-Poellnitz Unit G-3-147414 | Union Pacific Resources Company | Hill (Buda) | Grimes | 1 | 1.3K | 227K | Sep 1993 – Apr 1996 |
| Hackemack Unit G-3-155564 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Fayette | 1 | 1.22K | 60.6K | Jul 1995 – Jan 2000 |
| Hancock, J.F. Unit G-6-144398 | Union Pacific Resources Company | Carthage (Travis Peak-Smith, S.) | Panola | 1 | 1.15K | 106K | Jan 1993 – Sep 1994 |
| Alford 'B' Gas Unit G-6-128306 | Union Pacific Resources Company | Oak Hill (Cotton Valley) | Rusk | 1 | 1.14K | 189K | Jan 1993 – May 1998 |
| Neal, Sallie J. Unit G-6-71702 | Union Pacific Resources Company | Carthage (Cotton Valley) | Panola | 1 | 1K | 93.9K | Jan 1993 – Jan 1995 |
| Yegua Unit G-3-140902 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | Burleson | 1 | 901 | 22.6K | Feb 1993 – Dec 1994 |