| Ohio-Sun Unit #24J42-321-00082 | Goldking Minerals Mgmt L.L.C. | MatagordaMarkham N.-Bay City N(MARK.7900) | Temporarily abandonedGas | 8,518 | Jun 15, 1998 | 4 | May 2026 |
| Tick Pierce #142-321-31760 | — | Matagorda | Plugged | 13,500 | May 12, 1998 | 1 | — |
| Savage #2A42-321-31759 | EOG Resources Inc. | MatagordaWadsworth (11380) | PluggedGas | 12,800 | May 1, 1998 | 3 | Jan 1999 |
| Letulle Estate C #4-U42-321-31746 | Dominion Expl. & Prod. Inc. | MatagordaRusty (2600) | PluggedGas | 3,200 | Apr 16, 1998 | 3 | Aug 2003 |
| Smith Howard #6__42-321-81688 | — | MatagordaMarkham | Plugged | 1,280 | Apr 9, 1998 | 1 | — |
| East Matagorda Bay Unit #142-321-31711 | Meridian Resource & Expl LLC The | MatagordaMaverick Bayou (Cib. Haz.) | PluggedOil | 20,000 | Apr 8, 1998 | 3 | Jun 1998 |
| E. O. Hansen et al Unit #142-321-30910 | Hilcorp Energy Company | MatagordaRugeley SW. (12100 N) | Shut inOil | 13,450 | Apr 7, 1998 | 5 | Feb 2020 |
| Trull R. B. et al #142-321-31756 | Deep Rock Resources Inc. | MatagordaAshby (Simpson) | PluggedGas | 9,600 | Mar 6, 1998 | 2 | Jul 2002 |
| Moore Unit #142-321-31757 | Gel Petroleum Inc. | MatagordaBay City East (10300 Frio) | PluggedGas | 10,900 | Mar 4, 1998 | 2 | Aug 2006 |
| Bunk NO 1 Pooled Unit #142-321-31755 | Proline Energy Resources Inc | MatagordaWadsworth (11 100-Oil) | PluggedOil | 12,700 | Feb 24, 1998 | 1 | Apr 2002 |
| Smith Howard Fee #16W42-321-01253 | Qri Industries Inc. | MatagordaMarkham | ActiveInjection | 2,251 | Feb 17, 1998 | 2 | Aug 2026 |
| Sliva Stephen #142-321-31753 | — | Matagorda | Plugged | 9,700 | Feb 17, 1998 | 1 | — |
| South Texas Land #1__42-321-31752 | — | Matagorda | Plugged | 7,300 | Jan 26, 1998 | 1 | — |
| Harriman C. B. #142-321-02399 | Unit Petroleum Company | MatagordaPalacios (Frio -A-) | PluggedGas | 9,000 | Jan 20, 1998 | 1 | Mar 2002 |
| State Tract 55 #442-321-31751 | — | Matagorda | Plugged | 13,400 | Jan 6, 1998 | 1 | — |
| Elma Ayers Gas Unit #242-321-31750 | XTO Energy Inc. | MatagordaTidehaven Deep (Frio 10700) | PluggedGas | 14,000 | Dec 29, 1997 | 1 | Jul 2002 |
| Smith Howard #14__42-321-01229 | — | MatagordaMarkham | Plugged | 2,000 | Dec 22, 1997 | 1 | — |
| Callaham Irma #142-321-31700 | Apache Corporation | MatagordaCollegeport (1900 NO) | PluggedGas | 4,500 | Dec 17, 1997 | 5 | Dec 2000 |
| Collegeport Gas Unit #4042-321-31479 | Apache Corporation | MatagordaCollegeport (2900) | PluggedGas | 5,812 | Dec 5, 1997 | 2 | Jan 1998 |
| Schroeder #142-321-02445 | Apache Corporation | MatagordaCollegeport (2270) | PluggedGas | 4,274 | Nov 26, 1997 | 4 | Jan 2004 |
| Stovall #642-321-02226 | — | MatagordaMidfields | Plugged | 9,175 | Aug 29, 1997 | 2 | — |
| Cornelius #142-321-31747 | — | Matagorda | Plugged | 10,900 | Aug 15, 1997 | 2 | — |
| Collegeport Gas Unit #6142-321-31619 | Apache Corporation | MatagordaCollegeport (2840) | PluggedGas | 5,812 | Aug 7, 1997 | 5 | May 1998 |
| Collegeport Gas Unit #1242-321-31635 | Apache Corporation | MatagordaCollegeport (1940) | PluggedGas | 4,500 | Aug 6, 1997 | 4 | Dec 1997 |
| Collegeport Gas Unit #4842-321-02502 | Apache Corporation | MatagordaCollegeport (2880) | PluggedGas | 5,200 | Aug 4, 1997 | 2 | Oct 1997 |
| Johnson #1__42-321-31744 | — | Matagorda | Plugged | 11,000 | Aug 4, 1997 | 1 | — |
| Robertson W. T. #142-321-00630 | Chaparral Energy L.L.C. | MatagordaSugar Valley (8100) | PluggedOil | 9,200 | Jul 30, 1997 | 4 | Jan 2006 |
| Heffelfinger #142-321-31742 | Dallas Production Inc. | MatagordaWildcat | PluggedGas | 12,500 | Jul 24, 1997 | 1 | — |
| Collegeport Gas Unit #2242-321-02452 | Apache Corporation | MatagordaCollegeport (1610) | PluggedGas | 13,574 | Jul 21, 1997 | 4 | Sep 1997 |
| Curry-Green #1R42-321-00390 | — | Matagorda | Plugged | 10,350 | Jun 23, 1997 | 1 | — |
| State Tract 181 #342-321-31046 | Sterling Expl. & Prod. Co. LLC | MatagordaWildcat | PluggedGas | 6,642 | Jun 16, 1997 | 3 | Jul 1999 |
| State Tract 181 #442-321-31522 | Sterling Expl. & Prod. Co. LLC | MatagordaWildcat | PluggedGas | 4,237 | May 16, 1997 | 3 | Jun 1999 |
| Trull #542-321-31741 | — | MatagordaMarkham | Plugged | 6,500 | May 16, 1997 | 1 | — |
| Libra #2 #142-321-31740 | — | Matagorda | Plugged | 4,500 | May 8, 1997 | 2 | — |
| Summers E. L. Unit #242-321-30950 | Prairie Producing Company | MatagordaRugeley SW. (12100 N) | PluggedGas | 13,675 | Apr 23, 1997 | 7 | Aug 2000 |
| Ohio - Sun Unit #1K42-321-00105 | Goldking Minerals Mgmt L.L.C. | MatagordaMarkham N.-Bay City N (Ross) | Temporarily abandonedGas | 8,801 | Apr 15, 1997 | 3 | Dec 1997 |
| Strnadel #742-321-02205 | Sue-Ann Operating L.C. | MatagordaMidfields (Frio 8575) | PluggedOil | 9,172 | Mar 27, 1997 | 4 | Nov 2004 |
| Ohio-Sun Unit #30J42-321-31326 | Goldking Minerals Mgmt L.L.C. | MatagordaMarkham N.-Bay City N(cornelius) | Shut inOil | 8,631 | Mar 26, 1997 | 4 | Aug 2026 |
| Spencer, Angeline #142-321-81685 | Umc Petroleum Corporation | MatagordaSugar Valley (Frio 9,195) | Not on schedule | 2,100 | Mar 25, 1997 | 1 | — |
| Letulle Estate #142-321-31738 | Dominion Expl. & Prod. Inc. | MatagordaRusty (1900) | PluggedGas | 3,000 | Mar 20, 1997 | 2 | Jul 2003 |
| Letulle Estate a #242-321-31739 | Dominion Expl. & Prod. Inc. | MatagordaRusty (2100) | PluggedGas | 3,000 | Mar 20, 1997 | 1 | Sep 2003 |
| Slone L.M. #142-321-30837 | Rusk Energy Operating LLC | MatagordaHamman (8900) | Shut inOil | 10,604 | Feb 27, 1997 | 3 | Mar 2021 |
| Richers E. #442-321-31126 | Rosenthal Stanley H. Estate Of | MatagordaHamman (-P- Sand) | PluggedOil | 12,000 | Feb 27, 1997 | 3 | Jun 2013 |
| State Tract 308 #442-321-31520 | Sterling Expl. & Prod. Co. LLC | MatagordaOyster Lake W. (3770) | PluggedGas | 4,200 | Feb 6, 1997 | 3 | Nov 2009 |
| Braman D. H. #142-321-31435 | Saba Energy of Texas Inc. | MatagordaJennings Lake (Frio 9050) | PluggedGas | 10,200 | Jan 28, 1997 | 3 | — |
| Ohio-Sun Unit #11J42-321-00090 | Goldking Minerals Mgmt L.L.C. | MatagordaMarkham N.-Bay City N (7685) | Shut inOil | 8,101 | Jan 22, 1997 | 1 | Aug 2026 |
| Braman -C- #1642-321-00514 | Oak Energy LLC | MatagordaSugar Valley N. (Union) | Shut inOil | 9,060 | Jan 7, 1997 | 1 | Jun 2008 |
| State Tract 308 #342-321-30113 | Sterling Expl. & Prod. Co. LLC | MatagordaOyster Lake W. (3500) | PluggedGas | 4,232 | Jan 3, 1997 | 4 | — |
| Wikinson #1__42-321-31736 | — | Matagorda | Plugged | 11,300 | Jan 3, 1997 | 1 | — |
| Ohio-Sun Unit #29A42-321-00065 | Goldking Minerals Mgmt L.L.C. | MatagordaMarkham N.-Bay City N(MARK.7900) | ActiveGas | 8,516 | Jan 2, 1997 | 1 | Jan 2025 |