| 74703 | Mar 10, 1980 | Mar 10, 1980 | Cummins & Walker Oil Co., Inc. | Chambers | Rauch, Leonard, Trustee #2 D | 2,500 | 07131024 |
| 68050 | Dec 31, 1979 | Dec 31, 1979 | Cummins & Walker Oil Co., Inc. | Hidalgo | Conrad, V. L. #1 | 8,810 | 21530992 |
| 67846 | Dec 28, 1979 | Dec 28, 1979 | Cummins & Walker Oil Co., Inc. | Starr | Davis, H. C. Fund #1 | 3,257 | 42731375 |
| 64689 | Nov 28, 1979 | Nov 28, 1979 | Cummins & Walker Oil Co., Inc. | Chambers | Newbold, K. C. #1 | 7,000 | 07131039 |
| 57975 | Aug 23, 1979 | Aug 23, 1979 | Cummins & Walker Oil Co., Inc. | Victoria | Shelton, Ben-A- #A2 | 7,059 | 46930604 |
| 54942 | Aug 8, 1979 | Aug 8, 1979 | Cummins & Walker Oil Co., Inc. | Goliad | Urban, G. #1 | 9,400 | 17530436 |
| 53910 | Jul 30, 1979 | Jul 30, 1979 | Cummins & Walker Oil Co., Inc. | Goliad | Arnecke, E. B. Gas Unit #2 | 3,200 | 17531237 |
| 53223 | Jul 19, 1979 | Jul 19, 1979 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate -A- #1-88 | 5,708 | 28330618 |
| 52478 | Jul 10, 1979 | Jul 10, 1979 | Cummins & Walker Oil Co., Inc. | Polk | Epstein-Webster Unit #1 | 6,513 | 37330439 |
| 51781 | Jun 28, 1979 | Jun 28, 1979 | Cummins & Walker Oil Co., Inc. | Goliad | Henke, E. #1 | 5,412 | 17530990 |
| 49758 | May 30, 1979 | May 30, 1979 | Cummins & Walker Oil Co., Inc. | Goliad | Urban, G. #1 | 9,400 | 17530436 |
| 47618 | May 2, 1979 | May 2, 1979 | Cummins & Walker Oil Co., Inc. | Chambers | Trichel Unit #1 | 6,495 | 07130944 |
| 45737 | Mar 30, 1979 | Mar 30, 1979 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate -A- #1-69 | 3,512 | 28330659 |
| 45277 | Mar 28, 1979 | Mar 28, 1979 | Cummins & Walker Oil Co., Inc. | Starr | Laurel, D. #1 | 6,020 | 42731309 |
| 45087 | Mar 27, 1979 | Mar 27, 1979 | Cummins & Walker Oil Co., Inc. | San Patricio | Lundberg Farms #1 | 6,419 | 40904227 |
| 43693 | Mar 5, 1979 | Mar 5, 1979 | Cummins & Walker Oil Co., Inc. | Goliad | Arnecke-Poling Gas Unit #1 | 3,200 | 17531200 |
| 43684 | Mar 5, 1979 | Mar 5, 1979 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate A #1114 | 6,000 | 28330656 |
| 43682 | Mar 5, 1979 | Mar 5, 1979 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate A #1089 | 6,000 | 28330655 |
| 41424 | Jan 18, 1979 | Jan 18, 1979 | Cummins & Walker Oil Co., Inc. | McMullen | Roos Gas Unit #2 | 8,200 | 31131140 |
| 40420 | Dec 27, 1978 | Dec 27, 1978 | Cummins & Walker Oil Co., Inc. | Chambers | Barg-Miller Unit #1 | 7,000 | 07130914 |
| 39184 | Dec 19, 1978 | Dec 19, 1978 | Cummins & Walker Oil Co., Inc. | Victoria | Shelton, Ben "C" #1-C | 7,718 | 46930506 |
| 39168 | Dec 19, 1978 | Dec 19, 1978 | Cummins & Walker Oil Co., Inc. | Goliad | Gannon, JO Dell #1 | 8,511 | 17530986 |
| 39102 | Dec 18, 1978 | Dec 18, 1978 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate -A- #2-88 | 5,812 | 28330648 |
| 38903 | Dec 14, 1978 | Dec 14, 1978 | Cummins & Walker Oil Co., Inc. | Victoria | Shelton, Ben "D" #2-D | 7,153 | 46930507 |
| 37796 | Nov 30, 1978 | Nov 30, 1978 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate -A- #2-67 | 5,812 | 28330647 |
| 33753 | Sep 29, 1978 | Sep 29, 1978 | Cummins & Walker Oil Co., Inc. | Chambers | Rauch-Spear Unit #1 | 7,000 | 07130898 |
| 32286 | Sep 11, 1978 | Sep 11, 1978 | Cummins & Walker Oil Co., Inc. | Chambers | Rauch, Leonard, Trustee #2 | 7,000 | 07130893 |
| 32144 | Sep 8, 1978 | Sep 8, 1978 | Cummins & Walker Oil Co., Inc. | Goliad | Henke, E. #1 | 5,412 | 17530990 |
| 30202 | Aug 8, 1978 | Aug 8, 1978 | Cummins & Walker Oil Co., Inc. | Refugio | Hynes Mineral Trust #D-1 | 7,553 | 39101107 |
| 29971 | Jul 27, 1978 | Jul 27, 1978 | Cummins & Walker Oil Co., Inc. | Victoria | Shelton, Ben -A- #A-2 | — | 46930604 |
| 28510 | Jul 14, 1978 | Jul 14, 1978 | Cummins & Walker Oil Co., Inc. | Goliad | Arnecke, E. B. Gas Unit #1 | 9,412 | 17531126 |
| 28296 | Jul 11, 1978 | Jul 11, 1978 | Cummins & Walker Oil Co., Inc. | Kenedy | State Tract 394 #1 | 9,800 | 26130435 |
| 27896 | Jul 5, 1978 | Jul 5, 1978 | Cummins & Walker Oil Co., Inc. | San Patricio | Roots, W. L. #2 | 7,528 | 40930562 |
| 26027 | Jun 8, 1978 | Jun 8, 1978 | Cummins & Walker Oil Co., Inc. | McMullen | Roos Gas Unit #1 | 8,200 | 31130971 |
| 25370 | May 30, 1978 | May 30, 1978 | Cummins & Walker Oil Co., Inc. | Victoria | Shelton, Ben, Mrs., et al "B" #4 | 7,437 | 46902592 |
| 22693 | Apr 24, 1978 | Apr 24, 1978 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Snydicate #1-88 | 6,000 | 28330618 |
| 20707 | Mar 24, 1978 | Mar 24, 1978 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate #1-68 | 6,000 | 28330617 |
| 20704 | Mar 24, 1978 | Mar 24, 1978 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate -A- #1-67 | 5,812 | 28330616 |
| 20703 | Mar 24, 1978 | Mar 24, 1978 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate #1-87 | 5,761 | 28330615 |
| 19890 | Mar 13, 1978 | Mar 13, 1978 | Cummins & Walker Oil Co., Inc. | Victoria | Welder-Cliburn #1 | 6,500 | 46931240 |
| 19889 | Mar 13, 1978 | Mar 13, 1978 | Cummins & Walker Oil Co., Inc. | Victoria | Welder-Cliburn #2 | 6,500 | 46931239 |
| 19888 | Mar 13, 1978 | Mar 13, 1978 | Cummins & Walker Oil Co., Inc. | Victoria | Welder-Cliburn #3 | 6,500 | 46931238 |
| 19884 | Mar 13, 1978 | Mar 13, 1978 | Cummins & Walker Oil Co., Inc. | Atascosa | Robinson, J. A. Trust #1 | 6,367 | 01330909 |
| 16908 | Jan 24, 1978 | Jan 24, 1978 | Cummins & Walker Oil Co., Inc. | Refugio | Hynes Mineral Trust #D-1 | 7,553 | 39101107 |
| 15531 | Jan 13, 1978 | Jan 13, 1978 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate #1-62 | 5,908 | 28330605 |
| 15530 | Jan 13, 1978 | Jan 13, 1978 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate -A- #1-41 | 5,637 | 28330604 |
| 10594 | Jan 5, 1978 | Jan 5, 1978 | Cummins & Walker Oil Co., Inc. | Chambers | Rauch, Leonard Trustee #1 | 7,000 | 07130807 |
| 15564 | Jan 4, 1978 | Jan 4, 1978 | Cummins & Walker Oil Co., Inc. | Goliad | Gebbert, W. G. #1 | 10,000 | 17531042 |
| 15535 | Jan 4, 1978 | Jan 4, 1978 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate #1-35 | 5,912 | 28330606 |
| 11165 | Nov 1, 1977 | Nov 1, 1977 | Cummins & Walker Oil Co., Inc. | Victoria | Shelton, Ben "D" #2-D | 7,153 | 46930507 |
| 10975 | Oct 31, 1977 | Oct 31, 1977 | Cummins & Walker Oil Co., Inc. | Victoria | Shelton, Ben "C" #5-C | 7,896 | 46902605 |
| 10128 | Oct 19, 1977 | Oct 19, 1977 | Cummins & Walker Oil Co., Inc. | Colorado | Coddou, J. W. et Al #1 | 4,000 | 08930900 |
| 5685 | Sep 29, 1977 | Sep 29, 1977 | Cummins & Walker Oil Co., Inc. | Goliad | Henke, E. #1 | 5,412 | 17530990 |
| 7066 | Sep 8, 1977 | Sep 8, 1977 | Cummins & Walker Oil Co., Inc. | Duval | Southland Life Insurance Company #2 | 6,500 | 13132342 |
| 7056 | Sep 8, 1977 | Sep 8, 1977 | Cummins & Walker Oil Co., Inc. | Hidalgo | Goldston, et al "A" #1 | 8,516 | 21530792 |
| 7055 | Sep 8, 1977 | Sep 8, 1977 | Cummins & Walker Oil Co., Inc. | Hidalgo | Goldston, et Al #1 | 9,150 | 21530791 |
| 7600 | Sep 1, 1977 | Sep 1, 1977 | Cummins & Walker Oil Co., Inc. | Goliad | Albrecht, R. #1 | 8,600 | 17530596 |
| 6337 | Aug 26, 1977 | Aug 26, 1977 | Cummins & Walker Oil Co., Inc. | Newton | Few, A. G. et Al #1 | 7,515 | 35130291 |
| 5146 | Aug 11, 1977 | Aug 11, 1977 | Cummins & Walker Oil Co., Inc. | Goliad | Gannon, J. #1 | 8,511 | 17530986 |
| 1524 | Aug 11, 1977 | Aug 11, 1977 | Cummins & Walker Oil Co., Inc. | Goliad | Enke, H. #1 | 9,500 | 17530966 |
| 4646 | Aug 4, 1977 | Aug 4, 1977 | Cummins & Walker Oil Co., Inc. | McMullen | Maspero, V.,jr. #1 | 6,512 | 31130871 |
| 3692 | Jul 22, 1977 | Jul 22, 1977 | Cummins & Walker Oil Co., Inc. | Goliad | Albrecht-Henke Unit #1 | 8,600 | 17530596 |
| 732 | Jun 15, 1977 | Jun 15, 1977 | Cummins & Walker Oil Co., Inc. | San Patricio | Mayo, C. H. #A-2 | 6,000 | 40902126 |
| 731 | Jun 15, 1977 | Jun 15, 1977 | Cummins & Walker Oil Co., Inc. | San Patricio | Lundell #3 | 6,000 | 40902116 |
| 1761 | Jun 13, 1977 | Jun 13, 1977 | Cummins & Walker Oil Co., Inc. | Victoria | Shelton, Ben "A" #A-2 | 7,500 | 46930604 |