| 142-321-01961 | Getty Oil Co. | Matagorda, TXPalacios (Frio -E-) | Not on scheduleGas | — | — | — | — |
| 142-321-01962 | Viking Drilling Company | Matagorda, TXPalacios (Frio -E-) | Not on scheduleGas | — | — | — | — |
| 142-321-01973 | Marathon Oil Company | Matagorda, TXPalacios (Frio -E-) | Not on scheduleGas | — | — | — | — |
| Kubela Stanley -a- #1 L42-321-01976 | Crest Resources & Expl. Corp. | Matagorda, TXPalacios (Melbourn E-4 Seg I) | PluggedOil | — | — | — | — |
| Kubela Stanley -a- #2 L42-321-01977 | Crest Resources & Expl. Corp. | Matagorda, TXPalacios (Melbourn E-4 Seg I) | Not on scheduleOil | — | — | — | — |
| Richman P. A. #142-321-01982 | Dunbar Blaine | Matagorda, TXPalacios (Melbourn E-3 Seg I) | Not on scheduleOil | — | — | — | — |
| Richman P. A. #2 T42-321-01983 | Dunbar Blaine | Matagorda, TXPalacios (Melbourn E-4 Seg I) | Not on scheduleOil | — | — | — | — |
| State Lease-Tract 5 #1 U42-321-01984 | Sue-Ann Oil & Gas Company | Matagorda, TXPalacios (Melbourn E-3 Seg F) | PluggedOil | — | — | — | — |
| Henry H. L. Etal #2 L42-321-01986 | Samson Resources Company | Matagorda, TXPalacios (Melbourn E-4 Seg C) | PluggedGas | — | — | — | — |
| 1 U42-321-01989 | Tenneco Oil Co. | Matagorda, TXPalacios (Melbourn E-4 Seg A) | Not on scheduleOil | — | — | — | — |
| 2 U42-321-01990 | Tenneco Oil Co. | Matagorda, TXPalacios (Melbourn E-4 Seg A) | Not on scheduleOil | — | — | — | — |
| 1 L42-321-01992 | Tenneco Oil Co. | Matagorda, TXPalacios (Melbourn E-4 Seg A) | Not on scheduleOil | — | — | — | — |
| Bohuslav -B- Unit #142-321-01998 | Energy Reserves Group Inc. | Matagorda, TXPalacios (Melbourn E-3 Seg F) | Not on scheduleOil | — | — | — | — |
| Bohuslav -a- Unit #142-321-01999 | Energy Reserves Group Inc. | Matagorda, TXPalacios (Melbourn E-4 Seg F) | Not on scheduleOil | — | — | — | — |
| Harvey C. G. -a- #2 U42-321-02003 | Energy Reserves Group Inc. | Matagorda, TXPalacios (Melbourn E-3 Seg C) | PluggedOil | — | — | — | — |
| Harvey C. G. -a- #3 L42-321-02004 | Energy Reserves Group Inc. | Matagorda, TXPalacios (Melbourn E-4 Seg E) | Not on scheduleOil | — | — | — | — |
| Harvey C. G. -B- Unit #1 L42-321-02005 | Energy Reserves Group Inc. | Matagorda, TXPalacios (Melbourn E-4 Seg E) | PluggedOil | — | — | — | — |
| Harvey C. G. -C- Unit #142-321-02006 | Energy Reserves Group Inc. | Matagorda, TXPalacios (Melbourn E-4 Seg E) | PluggedOil | — | — | — | — |
| Harvey C. G. -D- Unit #142-321-02007 | Energy Reserves Group Inc. | Matagorda, TXPalacios (Melbourn E-4 Seg E) | PluggedOil | — | — | — | — |
| 142-321-02008 | Texaco Inc. | Matagorda, TXPalacios (Frio 9300) | Not on scheduleGas | — | — | — | — |
| 3 U42-321-02010 | Texaco Inc. | Matagorda, TXPalacios (Melbourn E-3 Seg B) | Not on scheduleOil | — | — | — | — |
| 542-321-02012 | Texaco Inc. | Matagorda, TXPalacios (Melbourn E-3 Seg A) | Not on scheduleOil | — | — | — | — |
| 1 U42-321-02014 | Tenneco Oil Co. | Matagorda, TXPalacios (Melbourn E-3 Seg B) | Not on scheduleOil | — | — | — | — |
| Pheasant Gas Unit -a- #142-321-02025 | Halbouty Michel T. | Matagorda, TXPheasant (Simpson) | PluggedGas | — | — | — | — |
| Farmers Canal Co. #242-321-02034 | Getty Oil Co. | Matagorda, TXPheasant (Eberstein) | Not on scheduleOil | — | — | — | — |
| Farmers Canal Company #142-321-02035 | Getty Oil Co. | Matagorda, TXPheasant (Nes-Dunn 8575) | Not on scheduleOil | — | — | — | — |
| 142-321-02043 | Humble Oil & Refining Co. | Matagorda, TXEl Maton South (Frio 10 700) | Not on scheduleGas | — | — | — | — |
| 142-321-02045 | Operator P-5 Not on File | Matagorda, TXAshby (Leroya) | Not on scheduleGas | — | — | — | — |
| 42-321-0204942-321-02049 | — | Matagorda, TX | Not on scheduleGas | — | — | — | — |
| 142-321-02064 | Monsanto Company | Matagorda, TXEl Maton (Frio 9 000) | Not on scheduleGas | — | — | — | — |
| 1 L42-321-02067 | Monsanto Company | Matagorda, TXEl Maton (Basal Frio) | Not on scheduleGas | — | — | — | — |
| 142-321-02068 | Monsanto Company | Matagorda, TXEl Maton (8700) | Not on scheduleGas | — | — | — | — |
| 1 L42-321-02069 | Monsanto Company | Matagorda, TXEl Maton (Basal Frio) | Not on scheduleGas | — | — | — | — |
| 242-321-02070 | Mobil Oil Corporation | Matagorda, TXTidehaven | Not on scheduleOil | — | — | — | — |
| Live Oak #342-321-02072 | Mobil Oil Corporation | Matagorda, TXTidehaven | Not on scheduleOil | — | — | — | — |
| Heffelfinger #c 442-321-02077 | Hot Oil & Roustabout Service | Matagorda, TXTidehaven ( 9 400 Frio) | Not on scheduleGas | — | — | — | — |
| Fay #2D_42-321-02091 | — | Matagorda, TX | Plugged | — | — | — | — |
| Newmont #1 U42-321-02092 | Monsanto Company | Matagorda, TXEl Maton (Basal Frio) | Not on scheduleGas | — | — | — | — |
| 142-321-02093 | Superior Oil Company The | Matagorda, TXEl Maton (Frio 9 500) | Not on scheduleGas | — | — | — | — |
| 1 L42-321-02094 | Monsanto Company | Matagorda, TXEl Maton (Basal Frio) | Not on scheduleGas | — | — | — | — |
| 1 U42-321-02095 | Monsanto Company | Matagorda, TXEl Maton (Frio 9 800) | Not on scheduleGas | — | — | — | — |
| 742-321-02120 | Exxon Corp. | Matagorda, TXDuncan Slough (Frio-3) | Not on scheduleGas | — | — | — | — |
| Stoddard #1D42-321-02121 | Ada Oil Exploration Corp. | Matagorda, TXWilson Creek | PluggedOil | — | — | — | — |
| Buckeye #142-321-02124 | Gaither Petroleum Corporation | Matagorda, TXWilson Creek (Frio 10400) | Temporarily abandonedGas | 16,937 | — | — | — |
| Stoddard a #1 U42-321-02128 | Atlas Operating LLC | Matagorda, TXBuckeye (10 000) | Shut inOil | 11,659 | — | — | — |
| 142-321-02130 | Humble Oil & Refining Co. | Matagorda, TXDuncan Slough (Frio-7) | Not on scheduleGas | — | — | — | — |
| 242-321-02131 | Continental Oil Company | Matagorda, TXDuncan Slough (Frio-6) | Not on scheduleGas | — | — | — | — |
| Steele Louise M. #1 L42-321-02132 | Continental Oil Company | Matagorda, TXDuncan Slough (Frio-8) | Not on scheduleGas | — | — | — | — |
| J.C. Lewis #542-321-02138 | Atlas Operating LLC | Matagorda, TXDuncan Slough (Frio Cons.) | Temporarily abandonedGas | 11,481 | — | — | — |
| 842-321-02140 | Exxon Corp. | Matagorda, TXDuncan Slough (Frio-6) | Not on scheduleGas | — | — | — | — |