| Baker James A. #1HZ42-163-32660 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 6,200 | Mar 1, 1990 | 3 | Jul 1996 |
| Howell H. H. #2HZ42-163-32636 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 7,000 | Feb 1, 1990 | 2 | Oct 1997 |
| Thompson #2HZ42-163-32637 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 8,000 | Feb 1, 1990 | 1 | — |
| Avant Unit #1HZ42-163-32617 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 7,000 | Jan 10, 1990 | 1 | Dec 1993 |
| Kincaid #1HZ42-163-32605 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 7,000 | Dec 15, 1989 | 1 | Sep 1998 |
| Nicholson Heirs Unit #1HZ42-163-32592 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 7,500 | Nov 17, 1989 | 1 | Oct 1997 |
| Maurine #142-149-30864 | Williams Clayton Energy Inc. | FayetteGiddings (Austin Chalk-3) | PluggedOil | 12,000 | Jun 6, 1989 | 2 | — |
| Roecker #142-481-33222 | Williams Clayton Energy Inc. | WhartonBlack Owl (Yegua 8150) | PluggedGas | 11,600 | Dec 12, 1988 | 1 | Jan 2002 |
| Schultz Unit #142-041-31441 | Williams Clayton Energy Inc. | BrazosAggieland (Wilcox 4400) | PluggedGas | 5,500 | Nov 1, 1988 | 1 | — |
| Crown Ranch Unit #142-041-31301 | Williams Clayton Energy Inc. | BrazosAggieland (Wilcox 4400) | PluggedGas | 10,250 | Oct 4, 1988 | 2 | — |
| Shiner Heirs #1642-163-32569 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 8,000 | Sep 20, 1988 | 1 | Dec 2012 |
| Miertschin Emil a #142-287-32208 | Williams Clayton Energy Inc. | LeeGiddings (Austin Chalk-3) | PluggedOil | 9,000 | Sep 15, 1988 | 3 | — |
| Hostetter #342-311-32687 | Williams Clayton Energy Inc. | McMullenHostetter (FB-B) | PluggedGas | 13,500 | Jul 5, 1988 | 1 | Feb 2007 |
| Krause A.M. #1HZ42-287-32211 | Williams Clayton Energy Inc. | LeeGiddings (Austin Chalk-3) | PluggedOil | 9,000 | May 31, 1988 | 2 | Apr 2007 |
| Burns Ranch #142-163-32526 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 8,000 | Apr 29, 1988 | 2 | — |
| Citzler-Tiemann #142-149-31399 | Williams Clayton Energy Inc. | FayetteGiddings (Austin Chalk-3) | PluggedOil | 13,000 | Aug 7, 1987 | 2 | May 1994 |
| Burns Martha Dobson #142-283-31226 | Williams Clayton Energy Inc. | La SallePearsall (Austin Chalk) | PluggedOil | 7,800 | Jul 17, 1987 | 1 | Sep 1993 |
| Champion Realty Corporation #142-041-31368 | Williams Clayton Energy Inc. | BrazosKurten (Austin Chalk) | PluggedOil | 8,200 | Jan 26, 1987 | 2 | Oct 1993 |
| Burns Ranch #242-163-32527 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 7,700 | Sep 9, 1986 | 1 | Aug 2000 |
| Nilson #142-481-32991 | Williams Clayton Energy Inc. | WhartonEl Campo NE (Yegua) | PluggedGas | 11,000 | Aug 20, 1986 | 1 | Nov 2000 |
| Shiner Heirs #1442-163-32525 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 7,600 | Aug 18, 1986 | 1 | Dec 2012 |
| Shiner Ranch -B- #20242-163-32487 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 8,900 | Feb 13, 1986 | 1 | Apr 2014 |
| Wolff David #142-477-30544 | Williams Clayton Energy Inc. | WashingtonJerry S Quarters (A C 11900) | PluggedGas | 13,000 | Feb 3, 1986 | 2 | Feb 1994 |
| Shiner Heirs #342-163-32451 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 7,800 | Oct 28, 1985 | 1 | Dec 2012 |
| Ashorn-Bentke Unit #1A42-477-30562 | Williams Clayton Energy Inc. | WashingtonJerry S Quarters (A C 11900) | PluggedGas | 13,000 | Oct 11, 1985 | 2 | Oct 1997 |
| Fee -a- #1342-163-32431 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 6,800 | Jul 29, 1985 | 1 | Mar 1998 |
| Shiner Heirs #242-163-32427 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 8,000 | Jun 21, 1985 | 1 | Dec 2012 |
| Shiner Heirs #142-163-32425 | Williams Clayton Energy Inc. | FrioPearsall (Austin Chalk) | PluggedOil | 9,850 | Apr 23, 1985 | 1 | Dec 2012 |
| Heineke Fred #142-477-30589 | Williams Clayton Energy Inc. | WashingtonBrenham NW. (Taylor) | PluggedGas | 12,500 | Sep 20, 1984 | 1 | Jan 1994 |
| McSwain a Unit #142-041-30602 | Williams Clayton Energy Inc. | BrazosGiddings (Austin Chalk Gas) | PluggedGas | 11,028 | Sep 12, 1984 | 3 | Oct 1993 |
| Milburn #542-287-31683 | Williams Clayton Energy Inc. | LeeDime Box (Navarro) | PluggedOil | 6,000 | Aug 9, 1984 | 1 | Oct 2011 |
| Milburn #342-287-31579 | Williams Clayton Energy Inc. | LeeDime Box (Navarro) | PluggedOil | 5,147 | Mar 5, 1984 | 1 | Oct 2011 |
| Milburn #242-287-31580 | Williams Clayton Energy Inc. | LeeDime Box (Navarro) | PluggedOil | 5,122 | Mar 5, 1984 | 1 | Oct 2011 |
| Hannes M. #142-287-31577 | Williams Clayton Energy Inc. | LeeHooker Creek (Navarro A) | PluggedOil | 5,400 | Feb 28, 1984 | 1 | Feb 2013 |
| Hutchings W.M. Estate #142-477-30549 | Williams Clayton Energy Inc. | WashingtonCwwj (Austin Chalk) | PluggedGas | 13,300 | Feb 22, 1984 | 1 | Mar 1996 |
| Wilson M. J. #342-335-32643 | Williams Clayton Energy Inc. | MitchellJameson N. (Odom) | PluggedOil | 7,500 | Nov 16, 1983 | 1 | Apr 2012 |
| Milburn #142-287-31524 | Williams Clayton Energy Inc. | LeeDime Box (Navarro) | PluggedOil | 5,108 | Nov 14, 1983 | 1 | Oct 2011 |
| Birch Creek Ranch #342-051-32496 | Williams Clayton Energy Inc. | BurlesonGiddings (Austin Chalk-3) | PluggedOil | 8,700 | Jul 26, 1983 | 1 | Jan 2010 |
| Wilson M. J. #242-335-32579 | Williams Clayton Energy Inc. | MitchellJameson N. (Odom) | PluggedOil | 7,500 | Jul 15, 1983 | 1 | Apr 2012 |
| See John #142-051-32484 | Williams Clayton Energy Inc. | BurlesonBig -a- Taylor | PluggedGas | 7,300 | Jun 21, 1983 | 1 | — |
| Machann Frank #142-051-32446 | Williams Clayton Energy Inc. | BurlesonGiddings (Austin Chalk-3) | PluggedOil | 12,000 | Apr 28, 1983 | 1 | Jan 1995 |
| McAskill Maude L. SWD #1D42-215-00715 | Williams Clayton Energy Inc. | HidalgoMonte Christo ( 25) | PluggedGas | 6,450 | Feb 9, 1983 | 2 | — |
| Elias Carolyn #142-149-31438 | Williams Clayton Energy Inc. | FayetteGiddings (Austin Chalk-3) | PluggedOil | 12,000 | Nov 30, 1982 | 1 | — |
| Pietsch Anton Unit #142-149-31414 | Williams Clayton Energy Inc. | FayetteGiddings (Edwards Gas) | PluggedGas | 12,000 | Oct 6, 1982 | 1 | — |
| McFarlane J. W. #142-041-30653 | Williams Clayton Energy Inc. | BrazosGiddings (Austin Chalk Gas) | PluggedGas | 13,500 | Apr 7, 1982 | 2 | — |
| Gloyna W. E. #142-051-31120 | Williams Clayton Energy Inc. | BurlesonCaldwell (Austin Chalk) | PluggedOil | 8,000 | Mar 17, 1982 | 2 | Oct 2000 |
| See John #542-051-32099 | Williams Clayton Energy Inc. | BurlesonBig -a- Taylor | PluggedGas | 12,000 | Jan 21, 1982 | 1 | — |
| Matcek-Gold Unit #142-051-32001 | Williams Clayton Energy Inc. | BurlesonGiddings (Austin Chalk-3) | PluggedOil | 12,000 | Nov 30, 1981 | 1 | — |
| Peters Alwine #142-051-31820 | Williams Clayton Energy Inc. | BurlesonGiddings (Austin Chalk-3) | PluggedOil | 12,000 | Sep 28, 1981 | 1 | Feb 2015 |
| Ryan W.H. a #242-051-31815 | Williams Clayton Energy Inc. | BurlesonGiddings (Austin Chalk-3) | PluggedOil | 12,000 | Aug 12, 1981 | 1 | Apr 2020 |