| 244138 | Jul 3, 1984 | Jul 3, 1984 | Monterrey Petroleum Corp. | Webb | Apache Ranch "F" #11 | 5,500 | 47933923 |
| 242588 | Jun 19, 1984 | Jun 19, 1984 | Monterrey Petroleum Corp. | Webb | Apache Ranch "A" #10 | 5,500 | 47933912 |
| 242587 | Jun 19, 1984 | Jun 19, 1984 | Monterrey Petroleum Corp. | Webb | Apache Ranch "B" #12 | 5,500 | 47933911 |
| 240220 | May 26, 1984 | May 26, 1984 | Monterrey Petroleum Corp. | Webb | Apache #6A | 5,500 | 47933896 |
| 237988 | May 8, 1984 | May 8, 1984 | Monterrey Petroleum Corp. | Webb | Apache Ranch #9 | 5,500 | 47933883 |
| 197659 | Jun 3, 1983 | Jun 3, 1983 | Monterrey Petroleum Corp. | Jefferson | Jackson #1 | 9,200 | 24531696 |
| 191854 | Apr 19, 1983 | Apr 19, 1983 | Monterrey Petroleum Corp. | Waller | Odis Styers Unit #1 | 11,400 | 47330391 |
| 166378 | Jul 16, 1982 | Jul 16, 1982 | Monterrey Petroleum Corp. | Webb | Apache #7 | 5,700 | 47933397 |
| 165250 | Jun 30, 1982 | Jun 30, 1982 | Monterrey Petroleum Corp. | Webb | Apache #6 | 5,300 | 47933390 |
| 163944 | Jun 17, 1982 | Jun 17, 1982 | Monterrey Petroleum Corp. | Webb | Apache #8 | 5,300 | 47933373 |
| 156407 | Apr 12, 1982 | Apr 12, 1982 | Monterrey Petroleum Corp. | Webb | Apache #5 | 5,500 | 47933300 |
| 146021 | Dec 30, 1981 | Dec 30, 1981 | Monterrey Petroleum Corp. | Waller | Frank Knapp Unit #2 #1 | 11,500 | 47330369 |
| 145540 | Dec 29, 1981 | Dec 29, 1981 | Monterrey Petroleum Corp. | Waller | Styers, Otis #1 | 11,000 | 47330391 |
| 146990 | Nov 18, 1981 | Nov 18, 1981 | Monterrey Petroleum Corp. | Webb | Apache #2 | 5,500 | 47933225 |
| 145993 | Oct 29, 1981 | Oct 29, 1981 | Monterrey Petroleum Corp. | Webb | Blocker Ranch "H" 1843 #5 | 5,600 | 47933220 |
| 136477 | Oct 15, 1981 | Oct 15, 1981 | Monterrey Petroleum Corp. | Waller | Knapp, Frank Unit #1 | 11,500 | 47330352 |
| 131631 | Aug 31, 1981 | Aug 31, 1981 | Monterrey Petroleum Corp. | Washington | White, H. P. #1 | 11,200 | 47730435 |
| 131821 | Aug 24, 1981 | Aug 24, 1981 | Monterrey Petroleum Corp. | Burleson | Scamardo #1 | 9,644 | 05131499 |
| 130601 | Aug 20, 1981 | Aug 20, 1981 | Monterrey Petroleum Corp. | Waller | Wood, Harper N. #2 | 11,000 | 47330348 |
| 132687 | Aug 13, 1981 | Aug 13, 1981 | Monterrey Petroleum Corp. | Burleson | Gini #1 | 11,000 | 05131016 |
| 145990 | Jul 10, 1981 | Jul 10, 1981 | Monterrey Petroleum Corp. | Webb | Blocker Ranch "H" 1841 #5 | 5,600 | 47933219 |
| 118637 | May 12, 1981 | May 12, 1981 | Monterrey Petroleum Corp. | Jefferson | Weed, W.F. #1 | 8,923 | 24531495 |
| 115882 | Apr 14, 1981 | Apr 14, 1981 | Monterrey Petroleum Corp. | Burleson | A & M #1 | 11,000 | 05131521 |
| 112530 | Mar 18, 1981 | Mar 18, 1981 | Monterrey Petroleum Corp. | Waller | Wood, Harper N. #1 | 11,000 | 47330340 |
| 108421 | Feb 13, 1981 | Feb 13, 1981 | Monterrey Petroleum Corp. | Webb | Reiss, Wm. H. #1 | 9,000 | 47932961 |
| 105442 | Jan 15, 1981 | Jan 15, 1981 | Monterrey Petroleum Corp. | Burleson | Thomason, P.C. #1 | 10,500 | 05131280 |
| 105407 | Jan 15, 1981 | Jan 15, 1981 | Monterrey Petroleum Corp. | Tom Green | Turnbow, A.W. #1 | 5,200 | 45130710 |
| 105385 | Jan 15, 1981 | Jan 15, 1981 | Monterrey Petroleum Corp. | Fort Bend | Moore, J.F.D. #1 | 8,030 | 15731169 |
| 105227 | Jan 14, 1981 | Jan 14, 1981 | Monterrey Petroleum Corp. | Webb | Blocker Ranch "H" 1841 #4 | 5,600 | 47932940 |
| 105155 | Jan 14, 1981 | Jan 14, 1981 | Monterrey Petroleum Corp. | Webb | Apache #4 | 5,500 | 47932939 |
| 105140 | Jan 14, 1981 | Jan 14, 1981 | Monterrey Petroleum Corp. | Webb | Apache #4G | 5,500 | 47932936 |
| 105139 | Jan 14, 1981 | Jan 14, 1981 | Monterrey Petroleum Corp. | Webb | Apache "B" #1 | 5,800 | 47932935 |
| 105138 | Jan 14, 1981 | Jan 14, 1981 | Monterrey Petroleum Corp. | Webb | Apache "A" #3 | 5,600 | 47932934 |
| 103362 | Dec 29, 1980 | Dec 29, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch "H" #2-1843 | 5,500 | 47932920 |
| 98731 | Nov 12, 1980 | Nov 12, 1980 | Monterrey Petroleum Corp. | Webb | M.M.A. Cattle Co. #1 | 7,945 | 47932898 |
| 92595 | Sep 15, 1980 | Sep 15, 1980 | Monterrey Petroleum Corp. | Burleson | Gini Unit #1 | 11,000 | 05131016 |
| 91072 | Aug 28, 1980 | Aug 28, 1980 | Monterrey Petroleum Corp. | Webb | Bruni Estate #13 | 2,500 | 47932832 |
| 91071 | Aug 28, 1980 | Aug 28, 1980 | Monterrey Petroleum Corp. | Webb | Bruni Estate #2 | 2,500 | 47932831 |
| 90985 | Aug 26, 1980 | Aug 26, 1980 | Monterrey Petroleum Corp. | Webb | Bruni Estate #1 | 2,500 | 47932829 |
| 88805 | Aug 6, 1980 | Aug 6, 1980 | Monterrey Petroleum Corp. | Cameron | Browne, Agnes O. #1 | 6,500 | 06130415 |
| 88631 | Aug 4, 1980 | Aug 4, 1980 | Monterrey Petroleum Corp. | Cameron | Browne, Agnes O. #1 | 6,181 | 06130415 |
| 87114 | Jul 18, 1980 | Jul 18, 1980 | Monterrey Petroleum Corp. | Coke | Storey Creek #1 | 6,620 | 08130928 |
| 84871 | Jun 24, 1980 | Jun 24, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch (Sec. 1043) #2 | 5,300 | 47932779 |
| 84535 | Jun 20, 1980 | Jun 20, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch -A- #7 | 5,500 | 47932775 |
| 84534 | Jun 20, 1980 | Jun 20, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch (Sec. 1041) #4 | 5,500 | 47932774 |
| 84533 | Jun 20, 1980 | Jun 20, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch (Sec. 1846) #5 | 5,600 | 47932773 |
| 84532 | Jun 20, 1980 | Jun 20, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch (Sec. 1843) #6 | 5,600 | 47932772 |
| 84531 | Jun 20, 1980 | Jun 20, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch -B- #8 | 5,500 | 47932771 |
| 84529 | Jun 20, 1980 | Jun 20, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch -C- #9 | 5,600 | 47932770 |
| 84527 | Jun 20, 1980 | Jun 20, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch -D- #10 | 5,600 | 47932769 |
| 77684 | Apr 9, 1980 | Apr 9, 1980 | Monterrey Petroleum Corp. | Hidalgo | Snearley #1 | 9,300 | 21531028 |
| 72847 | Feb 19, 1980 | Feb 19, 1980 | Monterrey Petroleum Corp. | Refugio | Ocker, Melvin F. #1 | 8,728 | 39131386 |
| 71272 | Jan 31, 1980 | Jan 31, 1980 | Monterrey Petroleum Corp. | Webb | Briscoe D #2-24 | 5,000 | 47932610 |
| 69767 | Jan 15, 1980 | Jan 15, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch (Sec. 1846) #1 | 6,000 | 47932596 |
| 69765 | Jan 15, 1980 | Jan 15, 1980 | Monterrey Petroleum Corp. | Webb | Blocker Ranch (Sec. 1853) #3 | 6,000 | 47932595 |
| 69470 | Jan 14, 1980 | Jan 14, 1980 | Monterrey Petroleum Corp. | Hidalgo | Taylor #1 | 9,300 | 21531000 |
| 69197 | Jan 10, 1980 | Jan 10, 1980 | Monterrey Petroleum Corp. | Zapata | Ramirez, Blas #2 | 9,800 | 50531177 |
| 60196 | Oct 10, 1979 | Oct 10, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-34 | 5,000 | 47932494 |
| 60194 | Oct 10, 1979 | Oct 10, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-32 | 5,000 | 47932493 |
| 60192 | Oct 10, 1979 | Oct 10, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-20 | 5,000 | 47932492 |
| 60190 | Oct 10, 1979 | Oct 10, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-18 | 5,000 | 47932491 |
| 60189 | Oct 10, 1979 | Oct 10, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-11 | 5,000 | 47932490 |
| 60187 | Oct 10, 1979 | Oct 10, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-13 | 5,000 | 47932489 |
| 60186 | Oct 10, 1979 | Oct 10, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe B #2 | 5,300 | 47932488 |
| 60185 | Oct 10, 1979 | Oct 10, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe D #1-28 | 5,200 | 47932487 |
| 60182 | Oct 10, 1979 | Oct 10, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-7 | 5,000 | 47932486 |
| 58436 | Sep 20, 1979 | Sep 20, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe #1-3 | 5,000 | 47932467 |
| 56601 | Aug 28, 1979 | Aug 28, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe "E" #2-34 | 5,000 | 47932443 |
| 55867 | Aug 17, 1979 | Aug 17, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe "D" #1-24 | 5,000 | 47932438 |
| 48245 | May 10, 1979 | May 10, 1979 | Monterrey Petroleum Corp. | Webb | Blocker, John R. -1854- #4 | 6,000 | 47932355 |
| 46981 | Apr 20, 1979 | Apr 20, 1979 | Monterrey Petroleum Corp. | Webb | Blocker, John R. -1042- #2 | 6,000 | 47932345 |
| 46564 | Apr 17, 1979 | Apr 17, 1979 | Monterrey Petroleum Corp. | Webb | Blocker, John R. -1854- #3 | 6,000 | 47932336 |
| 45797 | Apr 4, 1979 | Apr 4, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-17 | 5,000 | 47932321 |
| 45795 | Apr 4, 1979 | Apr 4, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-9 | 5,000 | 47932320 |
| 44950 | Mar 23, 1979 | Mar 23, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-1 | 5,000 | 47932305 |
| 44368 | Mar 15, 1979 | Mar 15, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #2-15 | 5,000 | 47932301 |
| 40371 | Jan 8, 1979 | Jan 8, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe D #1-30 | 5,000 | 47932253 |
| 40237 | Jan 4, 1979 | Jan 4, 1979 | Monterrey Petroleum Corp. | Webb | Briscoe F #1-15 | 5,000 | 47932252 |
| 39984 | Jan 2, 1979 | Jan 2, 1979 | Monterrey Petroleum Corp. | Nueces | Thompson #1 | 9,000 | 35531368 |
| 37350 | Nov 21, 1978 | Nov 21, 1978 | Monterrey Petroleum Corp. | Webb | Garner, John N. Ranch #1 | 7,300 | 47932223 |
| 33658 | Sep 28, 1978 | Sep 28, 1978 | Monterrey Petroleum Corp. | Webb | Briscoe #1 | 5,300 | 47932152 |
| 19285 | Mar 3, 1978 | Mar 3, 1978 | Monterrey Petroleum Corp. | Webb | Blocker, John R. 1040 #1 | 6,000 | 47931965 |
| 16714 | Jan 20, 1978 | Jan 20, 1978 | Monterrey Petroleum Corp. | McMullen | Hagist Ranch #1 | 3,057 | 31180490 |