| 387336 | Apr 30, 1991 | Apr 30, 1991 | Cox & Perkins Exploration, Inc. | Jackson | Batt #2 | 11,000 | 23932592 |
| 385899 | Mar 20, 1991 | Mar 20, 1991 | Cox & Perkins Exploration, Inc. | Jackson | Henry #1 | 12,000 | 23932585 |
| 385532 | Mar 15, 1991 | Mar 15, 1991 | Cox & Perkins Exploration, Inc. | Wharton | Rogers #1 | 7,500 | 48133486 |
| 385164 | Feb 27, 1991 | Feb 27, 1991 | Cox & Perkins Exploration, Inc. | Gonzales | Allen, Doris #3 | 11,400 | 17731886 |
| 384481 | Feb 13, 1991 | Feb 13, 1991 | Cox & Perkins Exploration, Inc. | Burleson | Ratcliffe-Hyvl Unit #1H | 12,100 | 05133199 |
| 383873 | Jan 25, 1991 | Jan 25, 1991 | Cox & Perkins Exploration, Inc. | Wharton | Fenner #1 | 8,000 | 48133471 |
| 382513 | Dec 20, 1990 | Dec 20, 1990 | Cox & Perkins Exploration, Inc. | Burleson | Crook-Hanover Unit #1H | 11,500 | 05133175 |
| 382455 | Dec 20, 1990 | Dec 20, 1990 | Cox & Perkins Exploration, Inc. | Gonzales | Allen, Doris #2 | 7,500 | 17731852 |
| 382455Amendment | Dec 20, 1990 | Dec 20, 1990 | Cox & Perkins Exploration, Inc. | Gonzales | Allen, Doris #2 | 10,800 | 17731852 |
| 382455Amendment | Dec 20, 1990 | Dec 20, 1990 | Cox & Perkins Exploration, Inc. | Gonzales | Allen, Doris #2H | 10,800 | 17731852 |
| 382486 | Dec 17, 1990 | Dec 17, 1990 | Cox & Perkins Exploration, Inc. | Live Oak | Eickhoff #1 | 14,000 | 29733973 |
| 381125 | Nov 20, 1990 | Nov 20, 1990 | Cox & Perkins Exploration, Inc. | Burleson | Schrader-Stonehenge Unit #1H | 13,500 | 05133155 |
| 380923 | Nov 15, 1990 | Nov 15, 1990 | Cox & Perkins Exploration, Inc. | Gonzales | Lessor #1H | 13,000 | 17731831 |
| 379245 | Oct 10, 1990 | Oct 10, 1990 | Cox & Perkins Exploration, Inc. | Gonzales | Allen, Doris #1H | 10,500 | 17731818 |
| 378728 | Oct 3, 1990 | Oct 3, 1990 | Cox & Perkins Exploration, Inc. | Wharton | Gold-Zapp #2 | 11,300 | 48133180 |
| 378415 | Sep 27, 1990 | Sep 27, 1990 | Cox & Perkins Exploration, Inc. | Wharton | Gold-Zapp #1 | 11,288 | 48133050 |
| 377363 | Aug 30, 1990 | Aug 30, 1990 | Cox & Perkins Exploration, Inc. | Wharton | Donaldson #1 | 13,500 | 48133433 |
| 377363Amendment | Aug 30, 1990 | Aug 30, 1990 | Cox & Perkins Exploration, Inc. | Wharton | Donaldson #1 | 14,200 | 48133433 |
| 377142 | Aug 29, 1990 | Aug 29, 1990 | Cox & Perkins Exploration, Inc. | Burleson | McNeese, A. G. #5H | 10,700 | 05133106 |
| 377142Amendment | Aug 29, 1990 | Aug 29, 1990 | Cox & Perkins Exploration, Inc. | Burleson | McNeese, A. G. #5H | 10,556 | 05133106 |
| 376376 | Aug 8, 1990 | Aug 8, 1990 | Cox & Perkins Exploration, Inc. | Burleson | Crook, George H. #3H | 10,200 | 05133098 |
| 376376Amendment | Aug 8, 1990 | Aug 8, 1990 | Cox & Perkins Exploration, Inc. | Burleson | Crook, George H. #3H | 9,707 | 05133098 |
| 375818 | Jul 25, 1990 | Jul 25, 1990 | Cox & Perkins Exploration, Inc. | Wharton | Pierce Estate #D 12 | 10,900 | 48133417 |
| 373987 | Jul 6, 1990 | Jul 6, 1990 | Cox & Perkins Exploration, Inc. | Burleson | McKinney Unit #2H | 8,200 | 05133076 |
| 373987Amendment | Jul 6, 1990 | Jul 6, 1990 | Cox & Perkins Exploration, Inc. | Burleson | McKinney Unit #2H | 11,600 | 05133076 |
| 375131 | Jul 2, 1990 | Jul 2, 1990 | Cox & Perkins Exploration, Inc. | Wharton | Louie #1 | 12,000 | 48133409 |
| 374554 | Jun 18, 1990 | Jun 18, 1990 | Cox & Perkins Exploration, Inc. | Zapata | Worley, R. J. #1 | 16,500 | 50532692 |
| 373361 | May 17, 1990 | May 17, 1990 | Cox & Perkins Exploration, Inc. | Dimmit | Campbell #1H | 8,000 | 12732887 |
| 373361Amendment | May 17, 1990 | May 17, 1990 | Cox & Perkins Exploration, Inc. | Dimmit | Campbell #1H | 10,219 | 12732887 |
| 373266 | May 11, 1990 | May 11, 1990 | Cox & Perkins Exploration, Inc. | Dimmit | Campbell #2H | 8,000 | 12732885 |
| 373266Amendment | May 11, 1990 | May 11, 1990 | Cox & Perkins Exploration, Inc. | Dimmit | Campbell #2H | 8,000 | 12732885 |
| 372760 | May 2, 1990 | May 2, 1990 | Cox & Perkins Exploration, Inc. | Duval | Dinn, John & Elva #1 | 15,000 | 13137075 |
| 372442 | Apr 25, 1990 | Apr 25, 1990 | Cox & Perkins Exploration, Inc. | Wharton | Koudela #1 | 13,500 | 48132880 |
| 372226 | Apr 18, 1990 | Apr 18, 1990 | Cox & Perkins Exploration, Inc. | Wharton | Pierce Estate #D 11 | 11,000 | 48133372 |
| 371041 | Mar 20, 1990 | Mar 20, 1990 | Cox & Perkins Exploration, Inc. | Jackson | Callaway #1 | 11,000 | 23932536 |
| 370825 | Mar 15, 1990 | Mar 15, 1990 | Cox & Perkins Exploration, Inc. | Chambers | Ezer-Hall Unit #1 | 13,000 | 07131928 |
| 370268 | Feb 27, 1990 | Feb 27, 1990 | Cox & Perkins Exploration, Inc. | Jackson | Batt #1 | 11,300 | 23932461 |
| 369787 | Feb 14, 1990 | Feb 14, 1990 | Cox & Perkins Exploration, Inc. | Wharton | Labay #1 | 10,000 | 48133351 |
| 367816 | Dec 21, 1989 | Dec 21, 1989 | Cox & Perkins Exploration, Inc. | Duval | Andrews #1 | 9,700 | 13137300 |
| 367243 | Dec 7, 1989 | Dec 7, 1989 | Cox & Perkins Exploration, Inc. | Wharton | Swanson #1 | 11,800 | 48133268 |
| 367036 | Nov 29, 1989 | Nov 29, 1989 | Cox & Perkins Exploration, Inc. | San Patricio | Starr #1T | 9,738 | 40931398 |
| 366102 | Nov 10, 1989 | Nov 10, 1989 | Cox & Perkins Exploration, Inc. | Wharton | Wilbur #1 | 11,500 | 48133324 |
| 364671 | Oct 4, 1989 | Oct 4, 1989 | Cox & Perkins Exploration, Inc. | Jackson | Vance #1 | 11,500 | 23932515 |
| 362130 | Aug 3, 1989 | Aug 3, 1989 | Cox & Perkins Exploration, Inc. | Wharton | Pierce Estate #D 10 | 11,100 | 48133286 |
| 361326 | Jul 12, 1989 | Jul 12, 1989 | Cox & Perkins Exploration, Inc. | Jackson | Germer-Sample #1 | 12,300 | 23932501 |
| 361326Amendment | Jul 12, 1989 | Jul 12, 1989 | Cox & Perkins Exploration, Inc. | Jackson | Germer-Sample #1 | 12,300 | 23932501 |
| 361326Amendment | Jul 12, 1989 | Jul 12, 1989 | Cox & Perkins Exploration, Inc. | Jackson | Germer-Sample #1 | 12,000 | 23932501 |
| 360996 | Jul 3, 1989 | Jul 3, 1989 | Cox & Perkins Exploration, Inc. | Jim Wells | Muil #1 | 8,800 | 24932123 |
| 360978 | Jun 29, 1989 | Jun 29, 1989 | Cox & Perkins Exploration, Inc. | Duval | Barrera #1 | 9,209 | 13137182 |
| 360520 | Jun 21, 1989 | Jun 21, 1989 | Cox & Perkins Exploration, Inc. | Chambers | Petersen #1 | 13,500 | 07131905 |
| 359966 | Jun 6, 1989 | Jun 6, 1989 | Cox & Perkins Exploration, Inc. | Wharton | Swanson #1 | 11,800 | 48133268 |
| 358364 | Apr 20, 1989 | Apr 20, 1989 | Cox & Perkins Exploration, Inc. | Jim Wells | Anita #1 | 9,700 | 24932111 |
| 357934 | Apr 12, 1989 | Apr 12, 1989 | Cox & Perkins Exploration, Inc. | Wharton | Pierce Estate #D 9 | 11,000 | 48133250 |
| 359019 | Apr 10, 1989 | Apr 10, 1989 | Cox & Perkins Exploration, Inc. | Wharton | Miller #1 | 11,800 | 48133257 |
| 357426 | Mar 29, 1989 | Mar 29, 1989 | Cox & Perkins Exploration, Inc. | Duval | John & Elva Dinn Gas Unit #1 | 13,977 | 13137075 |
| 357211 | Mar 21, 1989 | Mar 21, 1989 | Cox & Perkins Exploration, Inc. | Jackson | Menefee #1 | 10,800 | 23932466 |
| 356947 | Mar 14, 1989 | Mar 14, 1989 | Cox & Perkins Exploration, Inc. | Jim Wells | Garcia #1 | 9,700 | 24932108 |
| 356744 | Mar 8, 1989 | Mar 8, 1989 | Cox & Perkins Exploration, Inc. | Jackson | Batt #1 | 11,300 | 23932461 |
| 355661 | Feb 1, 1989 | Feb 1, 1989 | Cox & Perkins Exploration, Inc. | Wharton | O. B. Ranch #1 | 11,300 | 48133238 |
| 354832 | Jan 4, 1989 | Jan 4, 1989 | Cox & Perkins Exploration, Inc. | Duval | Barrera #1 | 10,000 | 13137182 |
| 354700 | Dec 30, 1988 | Dec 30, 1988 | Cox & Perkins Exploration, Inc. | Wharton | Pierce Estate #D 8 | 11,000 | 48133228 |
| 353692 | Nov 29, 1988 | Nov 29, 1988 | Cox & Perkins Exploration, Inc. | Jackson | Porche #1 | 11,500 | 23932441 |
| 352127 | Oct 12, 1988 | Oct 12, 1988 | Cox & Perkins Exploration, Inc. | Jackson | Hahn #1 | 9,500 | 23932433 |
| 351227 | Sep 19, 1988 | Sep 19, 1988 | Cox & Perkins Exploration, Inc. | Chambers | Edmonds #1 | 12,000 | 07131874 |
| 349846 | Aug 8, 1988 | Aug 8, 1988 | Cox & Perkins Exploration, Inc. | Duval | Dinn, John & Elva #2 | 17,000 | 13137138 |
| 348786 | Jul 14, 1988 | Jul 14, 1988 | Cox & Perkins Exploration, Inc. | Wharton | Gold-Zapp #2 | 11,500 | 48133180 |
| 347530 | Jun 20, 1988 | Jun 20, 1988 | Cox & Perkins Exploration, Inc. | San Patricio | Webb #1 | 7,166 | 40931397 |
| 346192 | May 10, 1988 | May 10, 1988 | Cox & Perkins Exploration, Inc. | Wharton | Pierce Estate #D 7 | 11,000 | 48133163 |
| 345130 | Apr 14, 1988 | Apr 14, 1988 | Cox & Perkins Exploration, Inc. | Wharton | Armour #1 | 13,500 | 48133158 |
| 344297 | Mar 25, 1988 | Mar 25, 1988 | Cox & Perkins Exploration, Inc. | Jackson | Drushel-Newsom #1 | 10,300 | 23932403 |
| 344297Amendment | Mar 25, 1988 | Mar 25, 1988 | Cox & Perkins Exploration, Inc. | Jackson | Drushel-Newsom #1 | 9,300 | 23932403 |
| 343180 | Feb 26, 1988 | Feb 26, 1988 | Cox & Perkins Exploration, Inc. | Wharton | Bartos #1 | 11,300 | 48133147 |
| 341183 | Jan 11, 1988 | Jan 11, 1988 | Cox & Perkins Exploration, Inc. | Wharton | Zalman #1 | 13,700 | 48133137 |
| 339857 | Dec 11, 1987 | Dec 11, 1987 | Cox & Perkins Exploration, Inc. | Duval | John & Elva Dinn Gas Unit #1 | 17,000 | 13137075 |
| 339858 | Dec 10, 1987 | Dec 10, 1987 | Cox & Perkins Exploration, Inc. | Duval | Leal #1 | 14,000 | 13137074 |
| 339444 | Dec 1, 1987 | Dec 1, 1987 | Cox & Perkins Exploration, Inc. | Jim Hogg | Weil #1 | 10,700 | 24731803 |
| 338676 | Nov 12, 1987 | Nov 12, 1987 | Cox & Perkins Exploration, Inc. | Jackson | Drushel #4 | 9,000 | 23932384 |
| 338676Amendment | Nov 12, 1987 | Nov 12, 1987 | Cox & Perkins Exploration, Inc. | Jackson | Drushel #4 | 9,500 | 23932384 |
| 335077 | Aug 27, 1987 | Aug 27, 1987 | Cox & Perkins Exploration, Inc. | Wharton | Yockey #1 | 11,800 | 48133092 |
| 335077Amendment | Aug 27, 1987 | Aug 27, 1987 | Cox & Perkins Exploration, Inc. | Wharton | Yockey #1 | 12,500 | 48133092 |
| 335077Amendment | Aug 27, 1987 | Aug 27, 1987 | Cox & Perkins Exploration, Inc. | Wharton | Yockey #1 | 10,800 | 48133092 |
| 335077Amendment | Aug 27, 1987 | Aug 27, 1987 | Cox & Perkins Exploration, Inc. | Wharton | Yockey #1 | 10,800 | 48133092 |
| 333564 | Jul 29, 1987 | Jul 29, 1987 | Cox & Perkins Exploration, Inc. | Wharton | Pierce Estate #D 6 | 11,300 | 48133081 |
| 333328 | Jul 23, 1987 | Jul 23, 1987 | Cox & Perkins Exploration, Inc. | Jim Hogg | Mestena Coyote #2 | 9,825 | 24731681 |
| 330091 | May 13, 1987 | May 13, 1987 | Cox & Perkins Exploration, Inc. | Jackson | Newson Valenta Unit #2 | 10,000 | 23932347 |
| 330091Amendment | May 13, 1987 | May 13, 1987 | Cox & Perkins Exploration, Inc. | Jackson | Newson Valenta Unit #2 | 10,000 | 23932347 |
| 330091Amendment | May 13, 1987 | May 13, 1987 | Cox & Perkins Exploration, Inc. | Jackson | Newsom-Valenta Unit #2 | 10,000 | 23932347 |
| 328914 | Apr 15, 1987 | Apr 15, 1987 | Cox & Perkins Exploration, Inc. | Wharton | Gold-Zapp #1 | 11,800 | 48133050 |
| 327217 | Mar 18, 1987 | Mar 18, 1987 | Cox & Perkins Exploration, Inc. | Galveston | Weyer Unit #1 | 10,000 | 16731129 |
| 327625 | Mar 16, 1987 | Mar 16, 1987 | Cox & Perkins Exploration, Inc. | Wharton | Pierce Estate #D 5 | 11,500 | 48133034 |
| 327311 | Mar 9, 1987 | Mar 9, 1987 | Cox & Perkins Exploration, Inc. | Galveston | Lobit Unit #1 | 10,000 | 16731130 |
| 323331 | Nov 24, 1986 | Nov 24, 1986 | Cox & Perkins Exploration, Inc. | Wharton | Pierce Estate #C 4 | 11,000 | 48133011 |
| 322430 | Oct 30, 1986 | Oct 30, 1986 | Cox & Perkins Exploration, Inc. | Jackson | Stafford #3 | 5,500 | 23932317 |
| 305529 | Aug 22, 1986 | Aug 22, 1986 | Cox & Perkins Exploration, Inc. | Jackson | Sample, Charles H. #1 | 10,500 | 23932303 |
| 304001 | Jul 10, 1986 | Jul 10, 1986 | Cox & Perkins Exploration, Inc. | Jackson | Drushel #3 | 10,500 | 23932299 |
| 300565 | Apr 2, 1986 | Apr 2, 1986 | Cox & Perkins Exploration, Inc. | Jackson | Drushel #2 | 10,000 | 23932280 |
| 285170 | Sep 17, 1985 | Sep 17, 1985 | Cox & Perkins Exploration, Inc. | Jim Hogg | Mestena Hot Wells #3 | 10,500 | 24731684 |
| 128271Amendment | Jul 30, 1981 | Jul 30, 1981 | Cox & Perkins Exploration, Inc. | Burleson | Leggio-Schubert Unit #2 | 8,900 | 05131765 |
| 101987Amendment | Dec 12, 1980 | Dec 12, 1980 | Cox & Perkins Exploration, Inc. | Burleson | Leggio-Schubert Unit #1 | 8,700 | 05131207 |
| 93488Amendment | Sep 16, 1980 | Sep 16, 1980 | Cox & Perkins Exploration, Inc. | Burleson | Hurry-Britt Unit #2 | 8,212 | 05131037 |