| 242-321-30089 | Monsanto Company | Matagorda, TXEl Maton (Basal Frio) | Not on scheduleGas | — | — | — | — |
| 142-321-30092 | Texas Oil & Gas Corp. | Matagorda, TXCollegeport (4-A) | Not on scheduleGas | — | — | — | — |
| Kain Unit #2 #1 F42-321-30096 | Alamo Pet. Co. | Matagorda, TXKain (6100) | PluggedGas | — | — | — | — |
| Bouldin Florence V. -B- #1 L42-321-30098 | Oak Energy LLC | Matagorda, TXSugar Valley S. (Frio 10850) | PluggedOil | — | — | — | — |
| 142-321-30110 | Halbouty Michel-Reserve Oil Gas | Matagorda, TXSugar Valley SE. (Text. 2) | Not on scheduleGas | — | — | — | — |
| Summers Faith Unit #142-321-30111 | Amoco Production Co.-Alvin | Matagorda, TXMidfields N. W. (8850) | PluggedOil | — | — | — | — |
| 4 F42-321-30115 | Alamo Pet. Co. | Matagorda, TXKain (3770) | PluggedGas | — | — | — | — |
| 1AU42-321-30116 | Pel-Tex Petroleum Co. Inc. | Matagorda, TXTrull (Nodosaria 10) | PluggedGas | — | — | — | — |
| 2 L42-321-30120 | Cutbirth J. Brown | Matagorda, TXLucky West ( Thompson East Seg) | PluggedGas | — | — | — | — |
| 142-321-30124 | McMoran Exploration Co. | Matagorda, TXOyster Lake W. (4100) | Not on scheduleGas | — | — | — | — |
| Vaculin & Trull Unit #142-321-30138 | Tomlinson Thomas K. Inc. | Matagorda, TXMidfields N. (Frio 8900) | PluggedGas | — | — | — | — |
| Savage Galen M. Etal #142-321-30140 | Haring Louis H. Jr. | Matagorda, TXVan Vleck North (Frio 7300) | Not on scheduleGas | — | — | — | — |
| Cobb F. G. -B- #4142-321-30143 | Texian Operating Company LLC | Matagorda, TXBay City (7000 Frio) | ActiveInjection | 4,204 | — | — | — |
| Northern Ranch #2D42-321-30147 | Apache Corporation | Matagorda, TXNorthern Ranch (Camp Sand) | PluggedOil | — | — | — | — |
| F.C.N.B. of Houston et al #1__42-321-30156 | — | Matagorda, TX | Plugged | — | — | — | — |
| Lewis J. C. et al #1__42-321-30161 | — | Matagorda, TX | Plugged | — | — | — | — |
| Texas State Tract 193 #1 L42-321-30167 | BKN Oil & Gas Inc. | Matagorda, TXMatagorda Bay Blk. 193 (2750) | PluggedGas | — | — | — | — |
| 342-321-30169 | Windfohr Oil Company | Matagorda, TXTrull (8600) | Not on scheduleOil | — | — | — | — |
| 142-321-30182 | Amoco Production Company | Matagorda, TXEl Maton W (9400) | Not on scheduleGas | — | — | — | — |
| Savage H. B O/A #142-321-30189 | Texaco Inc. | Matagorda, TXWadsworth ( CH-1) | PluggedOil | — | — | — | — |
| Seerden Gas Unit #142-321-30191 | Amoco Production Co.-Alvin | Matagorda, TXPetrucha (12 650) | PluggedGas | — | — | — | — |
| Stovall #142-321-30194 | — | Matagorda, TX | Plugged | — | — | — | — |
| State Tract 172 #1 L42-321-30195 | EP Operating Company | Matagorda, TXMatagorda Bay S (Miocene 4100) | PluggedGas | — | — | — | — |
| State Tract 159 #1 L42-321-30196 | Enserch Exploration Inc | Matagorda, TXMatagorda Bay S (Miocene 4100) | PluggedGas | — | — | — | — |
| Robeson F. K. #2 L42-321-30200 | Unit Petroleum Company | Matagorda, TXPalacios (Frio E FB 1) | PluggedGas | — | — | — | — |
| 142-321-30201 | Coastal States Gas Prod. Co. | Matagorda, TXTidehaven Deep (Frio 11 700) | Not on scheduleGas | — | — | — | — |
| Burke Frances P. et al #142-321-30205 | CLR Secondary Recovery LLC | Matagorda, TXMellon (10500) | PluggedGas | — | — | — | — |
| State Tract 182 #1 L42-321-30208 | Enserch Exploration Inc | Matagorda, TXMatagorda Bay S (Miocene 4100) | PluggedGas | — | — | — | — |
| 242-321-30220 | Coastal States Gas Prod. Co. | Matagorda, TXTidehaven ( 8 800) | Not on scheduleGas | — | — | — | — |
| State Tract 182 #2 L42-321-30225 | Enserch Exploration Inc | Matagorda, TXMatagorda Bay S (Miocene 4100) | PluggedGas | — | — | — | — |
| State Tract 171 #242-321-30226 | Chaparral Energy L.L.C. | Matagorda, TXMatagorda Bay S (Miocene 3600) | PluggedGas | — | — | — | — |
| Hummels Katherine Unit #1D42-321-30232 | Goldking Prod. Co. | Matagorda, TXPheasant East (Melbourne Lo.) | PluggedOil | — | — | — | — |
| Wylie Harold A. #142-321-30233 | Coastal States Gas Prod. Co. | Matagorda, TXTidehaven (10 300) | Not on scheduleGas | — | — | — | — |
| 242-321-30243 | Texaco Inc. | Matagorda, TXWadsworth (8700) | Not on scheduleOil | — | — | — | — |
| Letulle S.V. #342-321-30246 | Pontiac Oil Inc. | Matagorda, TXRusty (Miocene 4000) | PluggedGas | — | — | — | — |
| 242-321-30247 | Humble Oil & Refining Co. | Matagorda, TXClear Lake W. (Marginulina) | PluggedGas | — | — | — | — |
| Gresham J. W. -B- #242-321-30248 | Foster Petroleum Company Inc. | Matagorda, TXTrull (Nodosaria 5) | PluggedGas | — | — | — | — |
| Palacious Ind. Dev. Co. #142-321-30251 | Crest Resources & Expl. Corp. | Matagorda, TXCamp Hulen (Miocene 2000) | PluggedGas | — | — | — | — |
| Wadsworth #142-321-30254 | Expro Engineering Inc. | Matagorda, TXMidfields SW (9300) | PluggedOil | — | — | — | — |
| Riley Dorothy M. #142-321-30258 | Coastal States Gas Prod. Co. | Matagorda, TXTidehaven Deep (Frio 11 700) | Not on scheduleGas | — | — | — | — |
| Letulle-Green #142-321-30262 | Bobcat Operating | Matagorda, TXRusty (Miocene 4000) | PluggedGas | — | — | — | — |
| Texas State Tract 180 #242-321-30275 | North American Royalties Inc. | Matagorda, TXMatagorda Bay Blk. 193 (4100) | Not on scheduleGas | — | — | — | — |
| Pierce Estate #142-321-30276 | — | Matagorda, TX | Plugged | — | — | — | — |
| Pricilla Nelson Oil Unit #142-321-30278 | Expro Engineering Inc. | Matagorda, TXMidfields S W (9150) | PluggedOil | — | — | — | — |
| Wheeler J. A. #742-321-30281 | B & M Operating Co. Inc. | Matagorda, TXBlessing (F-18) | PluggedOil | — | — | — | — |
| Baer Ranch #1 A42-321-30284 | Ethyl Corporation-Subsurface | Matagorda, TXBaer Ranch (Ethyl Sand) | PluggedGas | — | — | — | — |
| HNG et al #142-321-30288 | Gardner-Lowe | Matagorda, TXBruce-Flo (Gardner Landry 14000) | PluggedGas | — | — | — | — |
| Hickl W.J. Gas Unit NO 1 #142-321-30292 | Davis Oil Company | Matagorda, TXEl Maton W.(9200) | Not on scheduleGas | — | — | — | — |
| City of Palacios #142-321-30293 | McCulloch Oil Corp of Tex. & Ids | Matagorda, TXHarrison (B-3 Sand) | PluggedOil | — | — | — | — |
| Kain L.W. Unit #5 T42-321-30296 | Alamo Pet. Co. | Matagorda, TXKain (Miocene -P-) | PluggedGas | — | — | — | — |