| Candy #142-051-30921 | U. S. Operating Inc. | Burleson, TXGiddings (Austin Chalk A) | PluggedGas | 11,300 | Aug 7, 1980 | — | — |
| Christy #142-051-30914 | U. S. Operating Inc. | Burleson, TXGiddings (Austin Chalk A) | PluggedGas | 9,915 | Aug 5, 1980 | — | — |
| Castleberry - Kelly #142-183-30440 | U. S. Operating, Inc. | Gregg, TXEast Texas | Plugged | 3,523 | Jul 28, 1980 | — | — |
| Carla #142-051-30893 | U. S. Operating Inc. | Burleson, TXGiddings (Austin Chalk A) | PluggedGas | 11,300 | Jul 21, 1980 | — | — |
| Roy #142-287-30728 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk Gas) | PluggedGas | 9,300 | Jun 23, 1980 | — | — |
| Becky Unit #142-287-30713 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 9,500 | Jun 6, 1980 | — | — |
| Flo #142-477-30372 | U. S. Operating, Inc. | Washington, TX | Not on schedule | 13,000 | May 15, 1980 | — | — |
| Brandy Unit #142-477-30369 | U. S. Operating, Inc. | Washington, TX | Not on schedule | 11,700 | May 9, 1980 | — | — |
| Suzanne Unit #142-287-30684 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 9,200 | Apr 29, 1980 | — | — |
| Kim Unit #142-477-30363 | U. S. Operating Inc. | Washington, TXGiddings (Austin Chalk Gas) | PluggedGas | 11,500 | Mar 31, 1980 | — | — |
| Patsy Lee #142-477-30362 | U. S. Operating Inc. | Washington, TXGiddings (Austin Chalk Gas) | PluggedGas | 11,500 | Mar 27, 1980 | — | — |
| Cowboy Unit #142-477-30361 | U. S. Operating Inc. | Washington, TXGiddings (Austin Chalk Gas) | PluggedGas | 11,500 | Mar 20, 1980 | — | — |
| Horner Ranch #542-507-31304 | U. S. Operating, Inc. | Zavala, TX | Plugged | 895 | Jan 23, 1980 | — | — |
| Horner Ranch #442-507-31305 | U. S. Operating, Inc. | Zavala, TX | Plugged | 765 | Jan 23, 1980 | — | — |
| Horner Ranch #342-507-31306 | U. S. Operating, Inc. | Zavala, TX | Plugged | 1,030 | Jan 23, 1980 | — | — |
| Horner Ranch #242-507-31307 | U. S. Operating, Inc. | Zavala, TX | Plugged | 813 | Jan 23, 1980 | — | — |
| Horner Ranch #142-507-31308 | U. S. Operating, Inc. | Zavala, TX | Plugged | 597 | Jan 23, 1980 | — | — |
| Gates Ranch #1-3242-479-32582 | U. S. Operating, Inc. | Webb, TX | Not on schedule | 6,000 | Dec 28, 1979 | — | — |
| Helen #142-287-30557 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk Gas) | PluggedGas | 10,000 | Sep 26, 1979 | — | — |
| Debbie #142-287-30525 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk Gas) | PluggedGas | 10,000 | Jul 18, 1979 | — | — |
| Marjorie #142-287-30526 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 10,000 | Jul 18, 1979 | — | — |
| Briscoe Ranch Inc. #318142-127-31771 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | 5,600 | Nov 16, 1978 | — | — |
| Briscoe #118142-127-31763 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | 5,200 | Nov 7, 1978 | — | — |
| Spacek #142-287-30418 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 10,000 | Oct 27, 1978 | — | — |
| Garner #15342-127-31758 | U. S. Operating Inc. | Dimmit, TXHidden Valley SE. (Olmos) | PluggedOil | 5,600 | Oct 19, 1978 | — | — |
| Kaye #142-287-30402 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 10,000 | Sep 26, 1978 | — | — |
| Williams Carolyn #142-287-30367 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 9,500 | Jul 12, 1978 | — | — |
| Peterson Nancy #142-287-30358 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | Not on scheduleOil | 9,500 | Jun 23, 1978 | — | — |
| Clements Lynn #142-287-30342 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 9,500 | May 12, 1978 | — | — |
| Ziehr John #142-287-30235 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 9,000 | Jan 11, 1978 | — | — |
| Wernecke Herman #142-287-30220 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 9,000 | Sep 9, 1977 | — | — |
| Gates Ranch #221942-127-31559 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | 5,800 | Aug 3, 1977 | — | — |
| Gates Ranch #222442-127-31163 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | 5,750 | Jul 27, 1977 | — | — |
| Menzel Herman #142-287-30197 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 8,600 | Jul 5, 1977 | — | — |
| Gise -B- #142-127-31541 | U. S. Operating Inc. | Dimmit, TXPearsall (Austin Chalk) | PluggedOil | 7,600 | Jun 28, 1977 | — | — |
| Briscoe/Hulsman #182842-127-30753 | U. S. Operating Inc. | Dimmit, TXFriday (Olmos) | PluggedOil | — | — | — | — |
| Gates Ranch #120242-127-30763 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | — | — | — | — |
| Gates Ranch #242-127-30783 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | — | — | — | — |
| Gates Ranch #123142-127-30948 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | — | — | — | — |
| Gates Ranch #17242-127-30950 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | — | — | — | — |
| Gates Ranch #219142-127-30988 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | — | — | — | — |
| Friday Haven #1A42-127-31027 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | — | — | — | — |
| Briscoe/Hulsman #171842-127-31030 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | — | — | — | — |
| Gates Ranch #121942-127-31165 | U. S. Operating Inc. | Dimmit, TXCatarina SW. (Olmos) | PluggedGas | — | — | — | — |
| Schkade #142-287-30052 | U. S. Operating Inc. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | — | — | — | — |