| 481752 | Dec 31, 1998 | Dec 31, 1998 | Cummins & Walker Oil Co., Inc. | Refugio | Wood, L. Est. #2 | 6,000 | 39132263 |
| 481222 | Dec 3, 1998 | Dec 3, 1998 | Cummins & Walker Oil Co., Inc. | De Witt | Speed, James #1 | 2,700 | 12331851 |
| 479764 | Sep 30, 1998 | Sep 30, 1998 | Cummins & Walker Oil Co., Inc. | Victoria | Welder, Minnie S. Est #4 | 3,500 | 46933368 |
| 479555 | Sep 22, 1998 | Sep 22, 1998 | Cummins & Walker Oil Co., Inc. | Victoria | Welder, Minnie S. Est. #3 | 2,800 | 46933366 |
| 479555Amendment | Sep 22, 1998 | Sep 22, 1998 | Cummins & Walker Oil Co., Inc. | Victoria | Welder, M. S. Est. #3 | 2,800 | 46933366 |
| 479546 | Sep 21, 1998 | Sep 21, 1998 | Cummins & Walker Oil Co., Inc. | Victoria | Welder, Minnie S. Est 'F' #1 | 5,500 | 46933365 |
| 479546Amendment | Sep 21, 1998 | Sep 21, 1998 | Cummins & Walker Oil Co., Inc. | Victoria | Welder, Minnie S. Est 'F' #1 | 5,500 | 46933365 |
| 478939 | Aug 25, 1998 | Aug 25, 1998 | Cummins & Walker Oil Co., Inc. | De Witt | Goebel, Dalhart #1 | 5,400 | 12331841 |
| 471841 | Jan 5, 1998 | Jan 5, 1998 | Cummins & Walker Oil Co., Inc. | Victoria | Welder, Minnie S. Estate #2 | 5,500 | 46933315 |
| 471841Amendment | Jan 5, 1998 | Jan 5, 1998 | Cummins & Walker Oil Co., Inc. | Victoria | Welder, Minnie S. Estate #2 | 5,500 | 46933315 |
| 469693 | Nov 6, 1997 | Nov 6, 1997 | Cummins & Walker Oil Co., Inc. | Victoria | Welder, Minnie S. Estate #1 | 5,500 | 46933295 |
| 458687 | Feb 20, 1997 | Feb 20, 1997 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C.K. "D" #1R | 3,600 | 46933116 |
| 443046 | Dec 20, 1995 | Dec 20, 1995 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. 'D' #1R | 4,225 | 46933116 |
| 442354 | Dec 6, 1995 | Dec 6, 1995 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. "D" #1 | 4,225 | 46933113 |
| 433440 | Mar 7, 1995 | Mar 7, 1995 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #6 | 2,250 | 46933080 |
| 433440Amendment | Mar 7, 1995 | Mar 7, 1995 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #6 | 2,250 | 46933080 |
| 431105 | Feb 21, 1995 | Feb 21, 1995 | Cummins & Walker Oil Co., Inc. | Victoria | Smajstrla Unit #2 | 2,507 | 46932649 |
| 430992 | Feb 21, 1995 | Feb 21, 1995 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #1 | 2,500 | 46932687 |
| 425235 | Jun 27, 1994 | Jun 27, 1994 | Cummins & Walker Oil Co., Inc. | Victoria | Smajstrla Unit #1 R | 2,950 | 46930121 |
| 424551 | Jun 13, 1994 | Jun 13, 1994 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. et Al #1 | 4,000 | 46933042 |
| 421171 | Mar 9, 1994 | Mar 9, 1994 | Cummins & Walker Oil Co., Inc. | Victoria | Smajstrla Unit #3 | 2,500 | 46932672 |
| 416484 | Oct 7, 1993 | Oct 7, 1993 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #5 | 4,250 | 46932995 |
| 415824 | Sep 15, 1993 | Sep 15, 1993 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #4 | 4,250 | 46932943 |
| 412779 | Jun 22, 1993 | Jun 22, 1993 | Cummins & Walker Oil Co., Inc. | De Witt | Bell, Don A. #1 | 5,500 | 12331735 |
| 412340 | Jun 11, 1993 | Jun 11, 1993 | Cummins & Walker Oil Co., Inc. | Goliad | Urban, J. L. #1 | 3,600 | 17531876 |
| 409489 | Mar 4, 1993 | Mar 4, 1993 | Cummins & Walker Oil Co., Inc. | Victoria | Reyes, S. Est. #2 | 7,015 | 46931968 |
| 407838 | Dec 31, 1992 | Dec 31, 1992 | Cummins & Walker Oil Co., Inc. | McMullen | Wheeler #128 | 3,800 | 31132959 |
| 405827 | Nov 18, 1992 | Nov 18, 1992 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #4 | 4,250 | 46932943 |
| 394072 | Nov 25, 1991 | Nov 25, 1991 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #1 | 1,985 | 46932687 |
| 379662 | Nov 1, 1990 | Nov 1, 1990 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #2 | 2,500 | 46932709 |
| 374125 | Jun 12, 1990 | Jun 12, 1990 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #2 | 2,500 | 46932709 |
| 371321 | Mar 27, 1990 | Mar 27, 1990 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #2 | 2,500 | 46932709 |
| 368812 | Jan 22, 1990 | Jan 22, 1990 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #3 | 2,500 | 46932723 |
| 367611 | Dec 15, 1989 | Dec 15, 1989 | Cummins & Walker Oil Co., Inc. | Victoria | Smajstrla Unit #3 | 2,500 | 46932672 |
| 366567 | Nov 20, 1989 | Nov 20, 1989 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #2 | 2,500 | 46932709 |
| 362193 | Sep 11, 1989 | Sep 11, 1989 | Cummins & Walker Oil Co., Inc. | Victoria | Welder Estate #1 | 2,500 | 46932687 |
| 361082 | Jul 10, 1989 | Jul 10, 1989 | Cummins & Walker Oil Co., Inc. | Victoria | Smajstrla Unit #3 | 2,500 | 46932672 |
| 361082Amendment | Jul 10, 1989 | Jul 10, 1989 | Cummins & Walker Oil Co., Inc. | Victoria | Smajstrla Unit #3 | 2,500 | 46932672 |
| 355670 | Feb 23, 1989 | Feb 23, 1989 | Cummins & Walker Oil Co., Inc. | Victoria | Smajstrla Unit #2 | 2,500 | 46932649 |
| 353504 | Nov 21, 1988 | Nov 21, 1988 | Cummins & Walker Oil Co., Inc. | Victoria | Smajstrla Unit #1 | 3,500 | 46932637 |
| 353504Amendment | Nov 21, 1988 | Nov 21, 1988 | Cummins & Walker Oil Co., Inc. | Victoria | Smajstrla Unit #1 | 3,500 | 46932637 |
| 350660 | Aug 30, 1988 | Aug 30, 1988 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #7 | 2,200 | 46932623 |
| 350660Amendment | Aug 30, 1988 | Aug 30, 1988 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #7 | 2,240 | 46932623 |
| 341995 | Jan 29, 1988 | Jan 29, 1988 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #5 | 2,250 | 46932591 |
| 334902 | Aug 25, 1987 | Aug 25, 1987 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. "C" #5 | 4,500 | 46932557 |
| 334773 | Aug 20, 1987 | Aug 20, 1987 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. "B" #2 | 4,500 | 46932554 |
| 332297 | Jul 1, 1987 | Jul 1, 1987 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. "C" #4 | 4,500 | 46932543 |
| 330163 | May 14, 1987 | May 14, 1987 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. "C" #3 | 4,200 | 46932533 |
| 326969 | Feb 24, 1987 | Feb 24, 1987 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. "C" #2 | 4,200 | 46932516 |
| 326969Amendment | Feb 24, 1987 | Feb 24, 1987 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. "C" #2 | 4,200 | 46932516 |
| 324628 | Dec 31, 1986 | Dec 31, 1986 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. 'C' #1 | 3,100 | 46932502 |
| 324628Amendment | Dec 31, 1986 | Dec 31, 1986 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. "C" #1 | 3,100 | 46932502 |
| 323598 | Dec 3, 1986 | Dec 3, 1986 | Cummins & Walker Oil Co., Inc. | Montgomery | Brown Unit #1 | 6,100 | 33930738 |
| 321726 | Oct 10, 1986 | Oct 10, 1986 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. "B" #1 | 4,200 | 46932493 |
| 321726Amendment | Oct 10, 1986 | Oct 10, 1986 | Cummins & Walker Oil Co., Inc. | Victoria | McCan C. K. "B" #1 | 4,200 | 46932493 |
| 305420 | Aug 20, 1986 | Aug 20, 1986 | Cummins & Walker Oil Co., Inc. | Montgomery | Randall, K. R. et Al #1 | 5,300 | 33930693 |
| 302286 | May 20, 1986 | May 20, 1986 | Cummins & Walker Oil Co., Inc. | Montgomery | Brown Unit #1 | 6,100 | 33930738 |
| 292207 | Dec 9, 1985 | Dec 9, 1985 | Cummins & Walker Oil Co., Inc. | Montgomery | Brown Unit #1 | 6,100 | 33930738 |
| 289343 | Nov 6, 1985 | Nov 6, 1985 | Cummins & Walker Oil Co., Inc. | Victoria | Gossett Unit #1 | 4,350 | 46932443 |
| 277356 | Jun 11, 1985 | Jun 11, 1985 | Cummins & Walker Oil Co., Inc. | Chambers | Graham-Newbold Unit #1 | 7,000 | 07131713 |
| 274401 | May 7, 1985 | May 7, 1985 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #2 | 4,300 | 46932299 |
| 268855 | Mar 8, 1985 | Mar 8, 1985 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #6 | 2,250 | 46932378 |
| 269143 | Mar 8, 1985 | Mar 8, 1985 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #3 | 4,300 | 46932327 |
| 265001 | Jan 17, 1985 | Jan 17, 1985 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #4 | 4,270 | 46932360 |
| 265003 | Jan 17, 1985 | Jan 17, 1985 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #5 | 2,300 | 46932361 |
| 261344 | Dec 17, 1984 | Dec 17, 1984 | Cummins & Walker Oil Co., Inc. | Chambers | Newbold, K. C. #4 | 7,000 | 07131660 |
| 261223 | Dec 14, 1984 | Dec 14, 1984 | Cummins & Walker Oil Co., Inc. | Montgomery | Randall, K. R. et Al #1 | 5,300 | 33930693 |
| 258002 | Nov 16, 1984 | Nov 16, 1984 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #3 | 4,300 | 46932327 |
| 252816 | Sep 27, 1984 | Sep 27, 1984 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #2 | 4,300 | 46932299 |
| 246655 | Jul 30, 1984 | Jul 30, 1984 | Cummins & Walker Oil Co., Inc. | Victoria | McCan, C. K. #1 | 4,300 | 46932273 |
| 242972 | Jun 25, 1984 | Jun 25, 1984 | Cummins & Walker Oil Co., Inc. | Hidalgo | Goldston #3 | 7,500 | 21531509 |
| 235426 | Apr 13, 1984 | Apr 13, 1984 | Cummins & Walker Oil Co., Inc. | Duval | Valdez #1 | 6,500 | 13136438 |
| 231392 | Mar 6, 1984 | Mar 6, 1984 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate 'A' #1067 | 5,812 | 28330616 |
| 224817 | Dec 20, 1983 | Dec 20, 1983 | Cummins & Walker Oil Co., Inc. | Chambers | Newbold, K. C. #3 | 7,000 | 07131509 |
| 220953 | Nov 15, 1983 | Nov 15, 1983 | Cummins & Walker Oil Co., Inc. | Refugio | Hynes Mineral Trust #D1 | 7,553 | 39101107 |
| 220685 | Nov 14, 1983 | Nov 14, 1983 | Cummins & Walker Oil Co., Inc. | Hidalgo | Goldston #2 | 16,000 | 21531404 |
| 219928 | Nov 4, 1983 | Nov 4, 1983 | Cummins & Walker Oil Co., Inc. | Chambers | Newbold, K. C. #2 | 7,000 | 07131492 |
| 210191 | Sep 7, 1983 | Sep 7, 1983 | Cummins & Walker Oil Co., Inc. | Bowie | Hines Unit #1 | 8,200 | 03730227 |
| 196927 | May 27, 1983 | May 27, 1983 | Cummins & Walker Oil Co., Inc. | Live Oak | Dougherty Estate "A" #1 | 11,200 | 29732696 |
| 182217 | Dec 30, 1982 | Dec 30, 1982 | Cummins & Walker Oil Co., Inc. | Stonewall | Brown #1 | 6,100 | 43331556 |
| 181091 | Dec 22, 1982 | Dec 22, 1982 | Cummins & Walker Oil Co., Inc. | Chambers | Baumert, S.E.A. #1-SWD | 2,570 | 07100838 |
| 172085 | Sep 16, 1982 | Sep 16, 1982 | Cummins & Walker Oil Co., Inc. | Jackson | Bland - Dugger, et Al #1 | 7,570 | 23931812 |
| 161580 | May 24, 1982 | May 24, 1982 | Cummins & Walker Oil Co., Inc. | Chambers | Graham, G. W. et Al #2 | 7,012 | 07131342 |
| 143678 | Dec 10, 1981 | Dec 10, 1981 | Cummins & Walker Oil Co., Inc. | Live Oak | Dougherty Estate "A" #2 | 2,807 | 29732946 |
| 135994 | Oct 8, 1981 | Oct 8, 1981 | Cummins & Walker Oil Co., Inc. | Refugio | Hynes Mineral Trust "C" #1 | 8,000 | 39131523 |
| 132045 | Sep 2, 1981 | Sep 2, 1981 | Cummins & Walker Oil Co., Inc. | Chambers | Graham, G.W. et Al #1 | 7,000 | 07131257 |
| 121216 | Jun 16, 1981 | Jun 16, 1981 | Cummins & Walker Oil Co., Inc. | Hidalgo | McManus, J.S. Unit #1 | 9,075 | 21531145 |
| 119730 | Jun 2, 1981 | Jun 2, 1981 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate 62 #2 | 5,600 | 28330781 |
| 117931 | May 13, 1981 | May 13, 1981 | Cummins & Walker Oil Co., Inc. | Goliad | Urban, J.L. #1-R | 3,000 | 17531486 |
| 116961 | May 4, 1981 | May 4, 1981 | Cummins & Walker Oil Co., Inc. | Live Oak | Dougherty Estate "A" #1 | 11,500 | 29732696 |
| 112956 | Mar 24, 1981 | Mar 24, 1981 | Cummins & Walker Oil Co., Inc. | Aransas | Bailey, O.C. & H.T. #1 | 8,000 | 00730685 |
| 112078 | Mar 12, 1981 | Mar 12, 1981 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate "a" 95 #2 | 5,810 | 28330739 |
| 111837 | Mar 11, 1981 | Mar 11, 1981 | Cummins & Walker Oil Co., Inc. | Chambers | Williams, L. E. Unit #1 | 6,532 | 07131179 |
| 103727 | Dec 31, 1980 | Dec 31, 1980 | Cummins & Walker Oil Co., Inc. | Goliad | Torian #1 | 3,000 | 17531436 |
| 103034 | Dec 22, 1980 | Dec 22, 1980 | Cummins & Walker Oil Co., Inc. | Jim Wells | Stech Gas Unit #1 | 2,850 | 24931349 |
| 102934 | Dec 19, 1980 | Dec 19, 1980 | Cummins & Walker Oil Co., Inc. | Goliad | Urban, J.L. "A" #2 | 3,000 | 17531431 |
| 94939 | Oct 7, 1980 | Oct 7, 1980 | Cummins & Walker Oil Co., Inc. | Jim Wells | Nollkamper #1 | 2,884 | 24931283 |
| 94091 | Sep 29, 1980 | Sep 29, 1980 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate "A"-86 #1 | 5,800 | 28330707 |
| 94086 | Sep 29, 1980 | Sep 29, 1980 | Cummins & Walker Oil Co., Inc. | La Salle | South Texas Syndicate "A"-95 #1 | 5,800 | 28330706 |
| 83103 | May 9, 1980 | May 9, 1980 | Cummins & Walker Oil Co., Inc. | Victoria | Shelton, Mrs. Ben -B- #6 | 7,448 | 46902594 |