| 498667 | Sep 6, 2000 | Sep 6, 2000 | Mustang Exploration Co., Inc. | Wharton | Mustang #1 | 6,000 | 48134245 |
| 373695 | Jul 2, 1990 | Jul 2, 1990 | Mustang Exploration Co., Inc. | Wharton | Engbrock, Glen #2 #2 | 3,042 | 48130339 |
| 351165Amendment | Sep 14, 1988 | Sep 14, 1988 | Mustang Exploration Co., Inc. | Wharton | Ranch #1 | 6,351 | 48133190 |
| 347516 | Jun 16, 1988 | Jun 16, 1988 | Mustang Exploration Co., Inc. | Fayette | Bing #1 | 14,000 | 14931481 |
| 299952 | Mar 20, 1986 | Mar 20, 1986 | Mustang Exploration Co., Inc. | Wharton | Harfst #2 | 4,846 | 48130522 |
| 299907 | Mar 19, 1986 | Mar 19, 1986 | Mustang Exploration Co., Inc. | Wharton | Quirey #2 | 5,900 | 48132959 |
| 299907Amendment | Mar 19, 1986 | Mar 19, 1986 | Mustang Exploration Co., Inc. | Wharton | Quirey #2 | 5,410 | 48132959 |
| 299816 | Mar 18, 1986 | Mar 18, 1986 | Mustang Exploration Co., Inc. | Wharton | Ranch #3 | 5,900 | 48132958 |
| 284322 | Sep 4, 1985 | Sep 4, 1985 | Mustang Exploration Co., Inc. | Wharton | Frantom #1 | 6,000 | 48132905 |
| 279729 | Jul 9, 1985 | Jul 9, 1985 | Mustang Exploration Co., Inc. | Victoria | West #1 | 4,050 | 46931345 |
| 279305 | Jul 2, 1985 | Jul 2, 1985 | Mustang Exploration Co., Inc. | Victoria | Gerdes #2 | 4,085 | 46931298 |
| 270624 | Mar 26, 1985 | Mar 26, 1985 | Mustang Exploration Co., Inc. | Wharton | Stockton #2A | 6,000 | 48132837 |
| 245323 | Jul 17, 1984 | Jul 17, 1984 | Mustang Exploration Co., Inc. | Wharton | Heard #1A | 6,000 | 48132693 |
| 245306 | Jul 17, 1984 | Jul 17, 1984 | Mustang Exploration Co., Inc. | Wharton | Vackar #1A | 5,500 | 48132692 |
| 242763 | Jun 21, 1984 | Jun 21, 1984 | Mustang Exploration Co., Inc. | Wharton | Vackar #2A | 5,000 | 48132676 |
| 242842 | Jun 20, 1984 | Jun 20, 1984 | Mustang Exploration Co., Inc. | Wharton | Strouhal #1 | 7,000 | 48132677 |
| 240047 | May 22, 1984 | May 22, 1984 | Mustang Exploration Co., Inc. | Wharton | Ammann #1 | 4,000 | 48132670 |
| 238565 | May 11, 1984 | May 11, 1984 | Mustang Exploration Co., Inc. | Wharton | Harfst #4A | 5,500 | 48132664 |
| 237615 | May 3, 1984 | May 3, 1984 | Mustang Exploration Co., Inc. | Victoria | Gerdes #3 | 4,300 | 46931299 |
| 236749 | Apr 26, 1984 | Apr 26, 1984 | Mustang Exploration Co., Inc. | Wharton | Harfst #1A | 5,470 | 48132653 |
| 235143 | Apr 6, 1984 | Apr 6, 1984 | Mustang Exploration Co., Inc. | Victoria | Gerdes #3 | 4,300 | 46931299 |
| 230479 | Feb 24, 1984 | Feb 24, 1984 | Mustang Exploration Co., Inc. | Fayette | Bing Unit #1 | 12,160 | 14931481 |
| 226301 | Jan 11, 1984 | Jan 11, 1984 | Mustang Exploration Co., Inc. | Victoria | Gerdes #4 | 3,800 | 46931300 |
| 226417 | Dec 30, 1983 | Dec 30, 1983 | Mustang Exploration Co., Inc. | Victoria | Gerdes #2 | 4,085 | 46931298 |
| 226460 | Dec 30, 1983 | Dec 30, 1983 | Mustang Exploration Co., Inc. | Victoria | Gerdes #3 | 4,300 | 46931299 |
| 224721 | Dec 28, 1983 | Dec 28, 1983 | Mustang Exploration Co., Inc. | Wharton | Setzler #1 | 10,000 | 48132616 |
| 223100 | Dec 9, 1983 | Dec 9, 1983 | Mustang Exploration Co., Inc. | Wharton | Malota #1 | 10,000 | 48132610 |
| 222932 | Dec 8, 1983 | Dec 8, 1983 | Mustang Exploration Co., Inc. | Wharton | Frantom #1 | 10,000 | 48132608 |
| 222140 | Nov 30, 1983 | Nov 30, 1983 | Mustang Exploration Co., Inc. | Wharton | Perry #1 | 10,000 | 48132600 |
| 221501 | Nov 22, 1983 | Nov 22, 1983 | Mustang Exploration Co., Inc. | Wharton | Popp, Leo #1 | 6,070 | 48132598 |
| 219396 | Nov 1, 1983 | Nov 1, 1983 | Mustang Exploration Co., Inc. | Wharton | Stavinhoa #1 | 10,000 | 48132587 |
| 217850 | Oct 19, 1983 | Oct 19, 1983 | Mustang Exploration Co., Inc. | Wharton | Popp #1 | 6,254 | 48132575 |
| 217851 | Oct 19, 1983 | Oct 19, 1983 | Mustang Exploration Co., Inc. | Wharton | Krenek #1 | 10,000 | 48132576 |
| 197628 | Jun 8, 1983 | Jun 8, 1983 | Mustang Exploration Co., Inc. | Fayette | Polk #2 | 9,500 | 14931560 |
| 192847 | Apr 26, 1983 | Apr 26, 1983 | Mustang Exploration Co., Inc. | Fayette | Polk #1 | 11,000 | 14931502 |
| 186784 | Feb 24, 1983 | Feb 24, 1983 | Mustang Exploration Co., Inc. | Colorado | Banse Unit #1 | 9,144 | 08931375 |
| 184646 | Jan 20, 1983 | Jan 20, 1983 | Mustang Exploration Co., Inc. | Fayette | Bing Unit #01 | 12,160 | 14931481 |
| 179582 | Dec 9, 1982 | Dec 9, 1982 | Mustang Exploration Co., Inc. | Fayette | Munke #1 | 13,000 | 14931444 |
| 178319 | Nov 24, 1982 | Nov 24, 1982 | Mustang Exploration Co., Inc. | Milam | Meco #1 | 4,000 | 33131559 |
| 177395 | Nov 10, 1982 | Nov 10, 1982 | Mustang Exploration Co., Inc. | Fayette | Parker #1 | 1,100 | 14931430 |
| 174638 | Oct 18, 1982 | Oct 18, 1982 | Mustang Exploration Co., Inc. | Fayette | Cherry Unit #1 | 9,487 | 14931418 |
| 168962 | Aug 11, 1982 | Aug 11, 1982 | Mustang Exploration Co., Inc. | Milam | Prewitt, Tom Estate #1 | 2,990 | 33131450 |
| 166700 | Jul 21, 1982 | Jul 21, 1982 | Mustang Exploration Co., Inc. | Milam | Diver, Wesley #1 | 3,300 | 33131428 |
| 166037 | Jul 9, 1982 | Jul 9, 1982 | Mustang Exploration Co., Inc. | Fayette | Briggs #1 | 11,000 | 14931379 |
| 164661 | Jun 24, 1982 | Jun 24, 1982 | Mustang Exploration Co., Inc. | Fayette | Spacek #1 | 11,000 | 14931372 |
| 161914 | May 26, 1982 | May 26, 1982 | Mustang Exploration Co., Inc. | Fayette | Hegar #1A | 11,000 | 14931360 |
| 154825 | Mar 29, 1982 | Mar 29, 1982 | Mustang Exploration Co., Inc. | Fayette | Dan #1 | 10,500 | 14931332 |
| 154023 | Mar 22, 1982 | Mar 22, 1982 | Mustang Exploration Co., Inc. | Fayette | Hegar #1 | 9,551 | 14931320 |
| 153793 | Mar 17, 1982 | Mar 17, 1982 | Mustang Exploration Co., Inc. | Fayette | Graham #3 | 11,000 | 14931327 |
| 128289 | Aug 3, 1981 | Aug 3, 1981 | Mustang Exploration Co., Inc. | Fayette | Reiss #2 | 9,710 | 14931158 |
| 125669 | Jul 20, 1981 | Jul 20, 1981 | Mustang Exploration Co., Inc. | Victoria | Gerdes #2 | 4,085 | 46931298 |
| 119898 | May 27, 1981 | May 27, 1981 | Mustang Exploration Co., Inc. | Fayette | Graham Unit #1 | 11,000 | 14931076 |
| 117313 | May 7, 1981 | May 7, 1981 | Mustang Exploration Co., Inc. | Fayette | Kallus #1 | 11,300 | 14931040 |
| 115790 | Apr 22, 1981 | Apr 22, 1981 | Mustang Exploration Co., Inc. | Gonzales | Beckendorf #2 | 8,500 | 17730932 |
| 115836 | Apr 20, 1981 | Apr 20, 1981 | Mustang Exploration Co., Inc. | Fayette | Freeman #1 | 11,160 | 14931022 |
| 115065 | Apr 14, 1981 | Apr 14, 1981 | Mustang Exploration Co., Inc. | Gonzales | Parr #01 | 8,500 | 17730912 |
| 112896 | Mar 23, 1981 | Mar 23, 1981 | Mustang Exploration Co., Inc. | Victoria | Gerdes #3 | 4,290 | 46931299 |
| 112378 | Mar 16, 1981 | Mar 16, 1981 | Mustang Exploration Co., Inc. | Gonzales | Beckendorf #1 | 11,000 | 17730855 |
| 111401 | Mar 12, 1981 | Mar 12, 1981 | Mustang Exploration Co., Inc. | Wharton | Carlton #1 | 6,806 | 48101736 |
| 111374 | Mar 9, 1981 | Mar 9, 1981 | Mustang Exploration Co., Inc. | Gonzales | Griffin #2 | 8,700 | 17730848 |
| 111395 | Mar 6, 1981 | Mar 6, 1981 | Mustang Exploration Co., Inc. | Gonzales | Anhaiser Unit #1 #1 | 8,700 | 17730852 |
| 108497 | Feb 13, 1981 | Feb 13, 1981 | Mustang Exploration Co., Inc. | Gonzales | Warren #1 | 11,000 | 17730804 |
| 108495 | Feb 13, 1981 | Feb 13, 1981 | Mustang Exploration Co., Inc. | Gonzales | Parr #02 | 11,000 | 17730803 |
| 108113 | Feb 11, 1981 | Feb 11, 1981 | Mustang Exploration Co., Inc. | Gonzales | Beckendorf Unit #1 | 9,500 | 17730800 |
| 101796 | Dec 11, 1980 | Dec 11, 1980 | Mustang Exploration Co., Inc. | Fayette | Cherry #1 | 9,360 | 14930397 |
| 101759 | Dec 11, 1980 | Dec 11, 1980 | Mustang Exploration Co., Inc. | Gonzales | Griffin #1 | 8,700 | 17730718 |
| 101194 | Dec 5, 1980 | Dec 5, 1980 | Mustang Exploration Co., Inc. | Fayette | Hegar #1 | 11,000 | 14930829 |
| 101193 | Dec 5, 1980 | Dec 5, 1980 | Mustang Exploration Co., Inc. | Fayette | Spacek #1 | 11,000 | 14930828 |
| 99192 | Nov 14, 1980 | Nov 14, 1980 | Mustang Exploration Co., Inc. | Fayette | Graham #2 | 11,000 | 14930806 |
| 99191 | Nov 14, 1980 | Nov 14, 1980 | Mustang Exploration Co., Inc. | Fayette | Graham #1 | 11,000 | 14930805 |
| 97491 | Oct 30, 1980 | Oct 30, 1980 | Mustang Exploration Co., Inc. | Fayette | Reiss #3 | 11,000 | 14930783 |
| 97052 | Oct 27, 1980 | Oct 27, 1980 | Mustang Exploration Co., Inc. | Fayette | James #1 | 11,000 | 14930774 |
| 96992 | Oct 27, 1980 | Oct 27, 1980 | Mustang Exploration Co., Inc. | Fayette | Reiss #1 | 11,000 | 14930773 |
| 96877 | Oct 27, 1980 | Oct 27, 1980 | Mustang Exploration Co., Inc. | Fayette | Reiss #2 | 11,000 | 14930770 |
| 93699 | Sep 24, 1980 | Sep 24, 1980 | Mustang Exploration Co., Inc. | Wharton | Wendel, Isadore #2 | 5,460 | 48132046 |
| 93218 | Sep 17, 1980 | Sep 17, 1980 | Mustang Exploration Co., Inc. | Wharton | Foehner Unit #1 | 5,500 | 48132040 |
| 92204 | Sep 8, 1980 | Sep 8, 1980 | Mustang Exploration Co., Inc. | Wharton | Chromcak #1 | 5,502 | 48132036 |
| 91570 | Aug 28, 1980 | Aug 28, 1980 | Mustang Exploration Co., Inc. | Victoria | West #1 | 4,050 | 46931345 |
| 87240 | Jul 21, 1980 | Jul 21, 1980 | Mustang Exploration Co., Inc. | Victoria | West #3 | 4,250 | 46931357 |
| 86933 | Jul 16, 1980 | Jul 16, 1980 | Mustang Exploration Co., Inc. | Colorado | Korenek, R. #1 | 10,000 | 08931155 |
| 86833 | Jul 16, 1980 | Jul 16, 1980 | Mustang Exploration Co., Inc. | Victoria | West #2 | 4,168 | 46931347 |
| 86750 | Jul 15, 1980 | Jul 15, 1980 | Mustang Exploration Co., Inc. | Victoria | Gerdes #4 | 4,150 | 46931300 |
| 82384 | May 29, 1980 | May 29, 1980 | Mustang Exploration Co., Inc. | Fayette | Nikel, Max #1 | 7,917 | 14930587 |
| 81547 | May 19, 1980 | May 19, 1980 | Mustang Exploration Co., Inc. | Wharton | Wendel #1 | 5,350 | 48130525 |
| 77742 | Apr 9, 1980 | Apr 9, 1980 | Mustang Exploration Co., Inc. | Fayette | Linney #1 | 11,000 | 14930536 |
| 75431 | Mar 18, 1980 | Mar 18, 1980 | Mustang Exploration Co., Inc. | Fayette | Cherry #3 | 11,000 | 14930508 |
| 73828 | Feb 28, 1980 | Feb 28, 1980 | Mustang Exploration Co., Inc. | Fayette | C.E.H. Unit #1 | 11,000 | 14930496 |
| 73329 | Feb 22, 1980 | Feb 22, 1980 | Mustang Exploration Co., Inc. | Fayette | Pavlicek #2 | 11,000 | 14930490 |
| 66822 | Dec 13, 1979 | Dec 13, 1979 | Mustang Exploration Co., Inc. | Fayette | Cherry #2 | 9,400 | 14930435 |
| 66448 | Dec 11, 1979 | Dec 11, 1979 | Mustang Exploration Co., Inc. | Fayette | Byler #1 | 11,000 | 14930432 |
| 67007 | Dec 10, 1979 | Dec 10, 1979 | Mustang Exploration Co., Inc. | Wharton | Hlavinka #4A | 6,000 | 48131829 |
| 62926 | Nov 1, 1979 | Nov 1, 1979 | Mustang Exploration Co., Inc. | Fayette | Brown Unit #1 | 8,200 | 14930413 |
| 62597 | Nov 1, 1979 | Nov 1, 1979 | Mustang Exploration Co., Inc. | Wharton | Halamicek #3 | 5,600 | 48131876 |
| 61702 | Oct 24, 1979 | Oct 24, 1979 | Mustang Exploration Co., Inc. | Wharton | Weinheimer #2 | 5,192 | 48131861 |
| 61014 | Oct 18, 1979 | Oct 18, 1979 | Mustang Exploration Co., Inc. | Wharton | Harfst #11 | 5,200 | 48131855 |
| 60851 | Oct 17, 1979 | Oct 17, 1979 | Mustang Exploration Co., Inc. | Wharton | Holub, Victor #1 | 5,300 | 48131853 |
| 60326 | Oct 12, 1979 | Oct 12, 1979 | Mustang Exploration Co., Inc. | Wharton | Wendel, Isadore #1 | 5,305 | 48131846 |
| 59888 | Oct 5, 1979 | Oct 5, 1979 | Mustang Exploration Co., Inc. | Fayette | Smith #1 | 9,506 | 14930399 |
| 59752 | Oct 4, 1979 | Oct 4, 1979 | Mustang Exploration Co., Inc. | Fayette | Pavlicek #1 | 11,000 | 14930398 |
| 59751 | Oct 4, 1979 | Oct 4, 1979 | Mustang Exploration Co., Inc. | Fayette | Cherry #1 | 9,360 | 14930397 |