| Davis E. F. Trust #542-039-32656 | North Central Oil Corp. | BrazoriaManvel (Miocene 2900) | PluggedGas | 4,200 | Apr 9, 1999 | 3 | Sep 2002 |
| St. Joseph Hospital Foundation #142-039-32670 | — | BrazoriaAllen Dome (10,800) | Plugged | 11,300 | Apr 9, 1999 | 2 | — |
| McFarland #142-039-32669 | Bargo Energy Company | Brazoria | Not on schedule | 9,000 | Apr 1, 1999 | 1 | — |
| Stevens and Pruett #142-039-32668 | — | Brazoria | Plugged | 12,500 | Mar 19, 1999 | 1 | — |
| Wisch #142-039-32667 | — | Brazoria | Plugged | 10,000 | Mar 18, 1999 | 1 | — |
| Vieman GU #242-039-32666 | EOG Resources Inc. | BrazoriaManor Lake (10000) | PluggedGas | 12,000 | Mar 10, 1999 | 2 | Mar 2001 |
| Hemus-Braden Unit #2D42-039-32130 | Gcows Operating LLC | BrazoriaChenango (9100) | ActiveInjection | 11,308 | Jan 11, 1999 | 2 | Aug 2026 |
| Dow #d 442-039-32664 | — | Brazoria | Plugged | 7,500 | Dec 22, 1998 | 1 | — |
| Old Ocean Unit #11242-039-03980 | Hilcorp Energy Company | BrazoriaOld Ocean (Chenault) | Shut inOil | 10,190 | Dec 11, 1998 | 3 | Mar 1999 |
| Millington #2 C42-039-01016 | Phillips Petroleum Company | BrazoriaChocolate Bayou ( Rycade) | PluggedGas | 12,354 | Nov 12, 1998 | 1 | — |
| Neff #142-039-32662 | Messy Oil and Gas LLC | BrazoriaDanbury Dome (5655 Sand) | Shut inOil | 8,500 | Nov 6, 1998 | 3 | Jan 2001 |
| Dow #b 2 _42-039-32661 | — | Brazoria | Plugged | 8,000 | Sep 23, 1998 | 1 | — |
| Dow #C342-039-32660 | Neumin Production Company | Brazoria | Not on schedule | 8,000 | Sep 22, 1998 | 1 | — |
| Rudy Manuel #142-039-31780 | Tristar Exploration Inc | BrazoriaRowan South (10 500) | PluggedGas | 10,800 | Sep 9, 1998 | 2 | Jan 2000 |
| Stevens Frank W. et al #1__42-039-32658 | — | Brazoria | Plugged | 9,500 | Aug 24, 1998 | 1 | — |
| Korenek #442-039-32657 | Houston Petroleum Company | BrazoriaDanbury South (Frio 11 700) | PluggedGas | 14,000 | Aug 18, 1998 | 2 | Apr 2006 |
| Garrett #1__42-039-32655 | — | Brazoria | Plugged | 11,500 | Aug 11, 1998 | 1 | — |
| Ramsey State Prison Farm a #1042-039-32654 | McGowan Working Partners Inc. | BrazoriaLochridge | ActiveInjection | 6,470 | Aug 3, 1998 | 1 | Aug 2026 |
| Perry Ranch #142-039-32653 | Transtexas Gas Corporation | Brazoria | Not on schedule | 13,500 | Jul 28, 1998 | 1 | — |
| Caldwell #142-039-32652 | — | Brazoria | Plugged | 11,500 | Jul 22, 1998 | 2 | — |
| Marmion Gas Unit #142-039-31256 | Apache Corporation | BrazoriaDanbury SW. (Nodosaria) | PluggedGas | 16,000 | Jul 21, 1998 | 3 | Sep 2000 |
| Knape #142-039-32651 | Gcows Operating LLC | BrazoriaRowan NE (Frio 10600) | ActiveGas | 11,020 | Jul 7, 1998 | 2 | Apr 2026 |
| Colby E. H. #1042-039-05023 | Denbury Onshore LLC | BrazoriaManvel (4970) | PluggedOil | 5,515 | Jul 2, 1998 | 1 | Nov 2025 |
| Dingle #142-039-32650 | — | Brazoria | Plugged | 13,000 | Jun 12, 1998 | 2 | — |
| Sponsel/Price #142-039-32648 | Corum Production Company | BrazoriaRowan N. (Frio Upper 9600) | Shut inOil | 10,369 | May 13, 1998 | 1 | Mar 2015 |
| Beets - Dow #1HZ42-039-32649 | Sawtooth Operating Co. Inc. | BrazoriaLake Jackson (Het) | PluggedGas | 8,500 | May 5, 1998 | 3 | Dec 2002 |
| Williams MM #342-039-32552 | Goldking Minerals Mgmt L.L.C. | BrazoriaAlvin North (7900) | PluggedOil | 8,700 | Apr 24, 1998 | 2 | Jul 2016 |
| Wisdom Belle Estate #70__42-039-32642 | — | BrazoriaNash Dome | Plugged | 5,400 | Apr 23, 1998 | 1 | — |
| Ramsey State Prison Farm -a- #5 U42-039-01865 | Shell Oil Company | BrazoriaLochridge (Frio L) | PluggedGas | 6,368 | Apr 22, 1998 | 2 | — |
| Renn Philip et al #142-039-31161 | Cimarex Energy Co. of Colorado | BrazoriaDanbury SW. (12 100-A) | PluggedGas | 16,000 | Apr 22, 1998 | 3 | Jun 2001 |
| Farms I. P. #542-039-31882 | Elliott Oil & Gas Operating Co. | BrazoriaChocolate Bayou S. (12900 Frio) | PluggedGas | 15,200 | Apr 22, 1998 | 4 | Jul 2024 |
| Ramsey State Prison Farm a #842-039-32646 | McGowan Working Partners Inc. | BrazoriaLochridge | Shut inOil | 6,473 | Apr 22, 1998 | 1 | Aug 2026 |
| Ramsey State Prison Farm a #942-039-32647 | McGowan Working Partners Inc. | BrazoriaLochridge | ActiveOil | 6,420 | Apr 22, 1998 | 2 | Aug 2026 |
| Jamison #142-039-32645 | — | Brazoria | Plugged | 4,000 | Apr 21, 1998 | 1 | — |
| Colby E. H. #1742-039-32643 | Denbury Onshore LLC | BrazoriaManvel (4970) | PluggedOil | 6,200 | Apr 20, 1998 | 1 | Nov 2025 |
| Belcher W. T. B #61HHZ42-039-32644 | Denbury Onshore LLC | BrazoriaManvel (F.B. I Oligocene) | Shut inOil | 5,033 | Apr 20, 1998 | 1 | Sep 2025 |
| I. P. Farms #142-039-32539 | Atlas Operating LLC | BrazoriaChocolate Bayou N.(andrau Stray) | Temporarily abandonedGas | 13,500 | Apr 9, 1998 | 3 | Jan 2015 |
| I.P. Farms #342-039-32640 | Messy Oil and Gas LLC | BrazoriaDanbury Dome (5655 Sand) | Shut inOil | 8,350 | Mar 16, 1998 | 1 | Jul 2021 |
| Norton #3542-039-32639 | Martin, William C. | BrazoriaDamon Mound | Not on schedule | 4,400 | Mar 6, 1998 | 1 | — |
| Coleman Cleo Beth Gas Unit #142-039-31828 | Edwards Gus Co. | BrazoriaDenike-Tom Phillips (9800 Frio) | PluggedGas | 12,700 | Mar 5, 1998 | 3 | Jan 2003 |
| Darrington State Farm #1__42-039-32638 | — | Brazoria | Plugged | 8,800 | Feb 26, 1998 | 1 | — |
| K.N. Groce #142-039-32636 | — | Brazoria | Plugged | 10,250 | Jan 28, 1998 | 1 | — |
| Grote Emil #2942-039-32489 | Denbury Onshore LLC | BrazoriaHastings (M-5A) | Temporarily abandonedGas | 6,301 | Jan 14, 1998 | 5 | Aug 2026 |
| Farms I. P. #142-039-32519 | Elliott Oil & Gas Operating Co. | BrazoriaChocolate Bayou (Andrau) | ActiveGas | 11,544 | Dec 29, 1997 | 4 | Oct 2023 |
| I.P. Farms #242-039-32635 | Messy Oil and Gas LLC | BrazoriaDanbury Dome (5655 Sand) | Shut inOil | 8,250 | Dec 3, 1997 | 1 | Jul 2021 |
| Ctmv "a" Fee #142-039-31718 | — | BrazoriaWest Columbia | Plugged | 7,000 | Nov 12, 1997 | 2 | — |
| Smith T. L. #2442-039-32634 | Deguello Operating LLC | BrazoriaDamon Mound East (FLT BLK 1) | Shut inOil | 4,780 | Oct 17, 1997 | 1 | Dec 2023 |
| Triangle Development Co. #a 142-039-01548 | Elliott Oil & Gas Operating Co. | BrazoriaChocolate Bayou N. (10400) | Temporarily abandonedGas | 11,596 | Oct 6, 1997 | 1 | Apr 2005 |
| Zinn Gas Unit #1R42-039-32633 | Transtexas Gas Corporation | BrazoriaDanbury South (Frio 12 300) | PluggedGas | 16,000 | Sep 26, 1997 | 4 | Jun 1999 |
| Munson Mary #142-039-05060 | Whitmore & Co. Inc. | BrazoriaWhitmore (Frio 10500) | PluggedGas | 11,000 | Sep 19, 1997 | 1 | — |