| 367191 | Dec 8, 1989 | Dec 8, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Shaw Unit #5 | 9,800 | 36532251 |
| 367182 | Dec 7, 1989 | Dec 7, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Driscoll, Clara #A 14F | 7,290 | 35531284 |
| 367182Amendment | Dec 7, 1989 | Dec 7, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Driscoll, Clara #A 14F | 7,290 | 35531284 |
| 367190 | Dec 6, 1989 | Dec 6, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Shaw Unit #6 | 9,800 | 36532250 |
| 366884 | Nov 30, 1989 | Nov 30, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Rivers, M. L. #A 12 | 7,263 | 35520126 |
| 365182 | Nov 13, 1989 | Nov 13, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Ingram, J. C. #B 2 | 7,300 | 35504729 |
| 366064 | Nov 9, 1989 | Nov 9, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Eschberger #1 | 13,500 | 35532666 |
| 365475 | Oct 25, 1989 | Oct 25, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Whitaker Unit #6 | 9,800 | 36532235 |
| 365475Amendment | Oct 25, 1989 | Oct 25, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Whitaker Unit #6 | 9,800 | 36532235 |
| 365142 | Oct 16, 1989 | Oct 16, 1989 | Pennzoil Exploration & Prod. Co. | Zapata | Garza, Lauro #B 2 | 11,500 | 50532460 |
| 365013 | Oct 16, 1989 | Oct 16, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Driscoll, Clara #A 13UL | 9,500 | 35530831 |
| 365006 | Oct 13, 1989 | Oct 13, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Austin, Helen P. #4F | 9,500 | 35532121 |
| 365008 | Oct 11, 1989 | Oct 11, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Ingram, J. C. #C 4 | 9,020 | 35531496 |
| 365007 | Oct 11, 1989 | Oct 11, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Talbert, C. P. #16F | 8,600 | 35530862 |
| 362703 | Oct 4, 1989 | Oct 4, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Moore Unit #4 | 9,800 | 36532197 |
| 364523 | Sep 28, 1989 | Sep 28, 1989 | Pennzoil Exploration & Prod. Co. | Zapata | Trevino #C 1 | 13,000 | 50532385 |
| 364522 | Sep 28, 1989 | Sep 28, 1989 | Pennzoil Exploration & Prod. Co. | Zapata | Vela, Emiliano #1 | 6,768 | 50530288 |
| 363154 | Aug 29, 1989 | Aug 29, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Smith-Bird Unit #5 | 9,800 | 36532204 |
| 363156 | Aug 28, 1989 | Aug 28, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Youngblood-Roe Unit #4 | 9,800 | 36532202 |
| 363155 | Aug 28, 1989 | Aug 28, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Youngblood-Roe Unit #5 | 9,800 | 36532203 |
| 363155Amendment | Aug 28, 1989 | Aug 28, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Youngblood-Roe Unit #5 | 9,800 | 36532203 |
| 362837 | Aug 16, 1989 | Aug 16, 1989 | Pennzoil Exploration & Prod. Co. | Zapata | Abel Vela-State Gas Unit #A 2 | 9,000 | 50532584 |
| 362836 | Aug 16, 1989 | Aug 16, 1989 | Pennzoil Exploration & Prod. Co. | Zapata | Garza, Lauro #D 4 | 13,500 | 50532586 |
| 362835 | Aug 16, 1989 | Aug 16, 1989 | Pennzoil Exploration & Prod. Co. | Zapata | Garza, Lauro #B 3 | 12,000 | 50532585 |
| 362701 | Aug 16, 1989 | Aug 16, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Moore Unit #5 | 9,800 | 36532196 |
| 362701Amendment | Aug 16, 1989 | Aug 16, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Moore Unit #5 | 9,800 | 36532196 |
| 362229 | Aug 7, 1989 | Aug 7, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Whitaker Unit #5 | 9,800 | 36532189 |
| 362230 | Aug 3, 1989 | Aug 3, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit B #B 5 | 9,800 | 36532190 |
| 361644 | Jul 20, 1989 | Jul 20, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Thompson Unit #6 | 9,800 | 36532171 |
| 360777 | Jul 6, 1989 | Jul 6, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Lilly Unit #5 | 9,800 | 36532134 |
| 360013 | Jun 26, 1989 | Jun 26, 1989 | Pennzoil Exploration & Prod. Co. | Gregg | Hays Unit #4 | 10,700 | 18330773 |
| 360130 | Jun 6, 1989 | Jun 6, 1989 | Pennzoil Exploration & Prod. Co. | Zapata | Jennings #60 | 9,000 | 50532563 |
| 359034 | Jun 2, 1989 | Jun 2, 1989 | Pennzoil Exploration & Prod. Co. | Gregg | Hays Unit #4 | 10,700 | 18330773 |
| 359799 | May 26, 1989 | May 26, 1989 | Pennzoil Exploration & Prod. Co. | Zapata | Haynes #11 | 12,500 | 50532560 |
| 358821 | May 26, 1989 | May 26, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hudson-Johnson Unit #5 | 9,800 | 36532086 |
| 359504 | May 23, 1989 | May 23, 1989 | Pennzoil Exploration & Prod. Co. | Matagorda | Northern Ranch #3 | 8,760 | 32100024 |
| 358565 | May 19, 1989 | May 19, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 45 | 9,800 | 36532078 |
| 359296 | May 18, 1989 | May 18, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Morgan Unit #6 | 9,800 | 36532098 |
| 359295 | May 17, 1989 | May 17, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hancock Unit #4 | 9,800 | 36532097 |
| 359294 | May 17, 1989 | May 17, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Dunlap Unit #4 | 9,800 | 36532099 |
| 359397 | May 16, 1989 | May 16, 1989 | Pennzoil Exploration & Prod. Co. | Goliad | N. P. U. - Gillett #1 | 9,700 | 17532408 |
| 358766 | May 4, 1989 | May 4, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Driscoll, Clara #A 14F | 7,290 | 35531284 |
| 358766Amendment | May 4, 1989 | May 4, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | Driscoll, Clara #A 14D | 7,290 | 35531284 |
| 358658 | May 1, 1989 | May 1, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 47 | 9,800 | 36532083 |
| 358659 | Apr 28, 1989 | Apr 28, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 49 | 9,800 | 36532084 |
| 358566 | Apr 27, 1989 | Apr 27, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 43 | 9,800 | 36532077 |
| 358568 | Apr 26, 1989 | Apr 26, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 42 | 9,800 | 36532075 |
| 358567 | Apr 26, 1989 | Apr 26, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 46 | 9,800 | 36532076 |
| 358530 | Apr 26, 1989 | Apr 26, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull a-21 Unit #A 37 | 9,800 | 36532074 |
| 358092 | Apr 14, 1989 | Apr 14, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Black Unit #5 | 9,800 | 36532070 |
| 357928 | Apr 11, 1989 | Apr 11, 1989 | Pennzoil Exploration & Prod. Co. | Zapata | Trevino #C 1 | 13,000 | 50532385 |
| 357928Amendment | Apr 11, 1989 | Apr 11, 1989 | Pennzoil Exploration & Prod. Co. | Zapata | Trevino #C 1 | 13,000 | 50532385 |
| 357840 | Apr 10, 1989 | Apr 10, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Fite Unit #7 | 9,800 | 36532065 |
| 357704 | Apr 7, 1989 | Apr 7, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Roberts Unit #6 | 9,800 | 36532064 |
| 357705 | Apr 4, 1989 | Apr 4, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Collins Unit #5 | 9,800 | 36532063 |
| 357705Amendment | Apr 4, 1989 | Apr 4, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Collins Unit #5 | 9,800 | 36532063 |
| 357218 | Mar 31, 1989 | Mar 31, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Mangham Unit #6 | 9,800 | 36532052 |
| 357479 | Mar 28, 1989 | Mar 28, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 48 | 9,800 | 36532059 |
| 357478 | Mar 28, 1989 | Mar 28, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 44 | 9,800 | 36532058 |
| 357467 | Mar 28, 1989 | Mar 28, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Wilson Unit #4 | 9,800 | 36532057 |
| 357466 | Mar 28, 1989 | Mar 28, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hall Unit #4 | 9,800 | 36532056 |
| 357254 | Mar 23, 1989 | Mar 23, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Dennard Unit #5 | 9,800 | 36532054 |
| 357253 | Mar 22, 1989 | Mar 22, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hall Unit #3 | 9,800 | 36532053 |
| 357166 | Mar 22, 1989 | Mar 22, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Chadwick Unit #6 | 9,800 | 36532051 |
| 357067 | Mar 16, 1989 | Mar 16, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | La Jolla #1 | 11,695 | 35532298 |
| 357067Amendment | Mar 16, 1989 | Mar 16, 1989 | Pennzoil Exploration & Prod. Co. | Nueces | La Jolla #1 | 11,695 | 35532298 |
| 356949 | Mar 15, 1989 | Mar 15, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Allison Unit #5 | 9,800 | 36532046 |
| 356543 | Mar 3, 1989 | Mar 3, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull a-21 Unit #A 36 | 9,800 | 36532038 |
| 356213 | Feb 22, 1989 | Feb 22, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Crenshaw Unit #3 | 8,000 | 36534203 |
| 355923 | Feb 21, 1989 | Feb 21, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hancock Unit #3 | 9,800 | 36532028 |
| 356017 | Feb 14, 1989 | Feb 14, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Lilly Unit #4 | 9,800 | 36532029 |
| 355924 | Feb 10, 1989 | Feb 10, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Morgan Unit #5 | 9,800 | 36532027 |
| 355875 | Feb 8, 1989 | Feb 8, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Thompson Unit #5 | 9,800 | 36532025 |
| 355351 | Feb 7, 1989 | Feb 7, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 38 | 9,800 | 36532019 |
| 355635 | Feb 1, 1989 | Feb 1, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Wallace Unit #3 | 7,000 | 36532022 |
| 355635Amendment | Feb 1, 1989 | Feb 1, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Wallace Unit #3 | 8,000 | 36532022 |
| 355245 | Jan 30, 1989 | Jan 30, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 35 | 9,800 | 36532016 |
| 355245Amendment | Jan 30, 1989 | Jan 30, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 35 | 9,800 | 36532016 |
| 355244 | Jan 30, 1989 | Jan 30, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull a-16 Unit #A 33 | 9,800 | 36532017 |
| 355219 | Jan 23, 1989 | Jan 23, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 40 | 9,800 | 36532015 |
| 355218 | Jan 17, 1989 | Jan 17, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 38 | 9,800 | 36532019 |
| 354948 | Jan 6, 1989 | Jan 6, 1989 | Pennzoil Exploration & Prod. Co. | Goliad | Smith, N.P.U. #2 | 10,500 | 17532361 |
| 354642 | Jan 3, 1989 | Jan 3, 1989 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 41 | 9,800 | 36532005 |
| 354644 | Dec 28, 1988 | Dec 28, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 34 | 9,800 | 36532006 |
| 354640 | Dec 28, 1988 | Dec 28, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 39 | 9,800 | 36532007 |
| 354460 | Dec 19, 1988 | Dec 19, 1988 | Pennzoil Exploration & Prod. Co. | Nueces | Elliff, Mabel #A 10 | 10,500 | 35532727 |
| 354460Amendment | Dec 19, 1988 | Dec 19, 1988 | Pennzoil Exploration & Prod. Co. | Nueces | Elliff, Mabel #A 10 | 10,500 | 35532727 |
| 353530 | Dec 19, 1988 | Dec 19, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Smith-Bird Unit #4 | 9,800 | 36531988 |
| 354256 | Dec 13, 1988 | Dec 13, 1988 | Pennzoil Exploration & Prod. Co. | Nueces | Blucher, Von #3 | 12,500 | 35532724 |
| 353814 | Dec 5, 1988 | Dec 5, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Hudson-Johnson Unit #4 | 9,800 | 36531995 |
| 353815 | Dec 2, 1988 | Dec 2, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Black Unit #4 | 9,800 | 36531996 |
| 353666 | Nov 29, 1988 | Nov 29, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 32 | 9,800 | 36531991 |
| 353665 | Nov 29, 1988 | Nov 29, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Dennard Unit #4 | 9,800 | 36531990 |
| 353664 | Nov 29, 1988 | Nov 29, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Dunlap Unit #3 | 9,800 | 36531989 |
| 352721 | Oct 26, 1988 | Oct 26, 1988 | Pennzoil Exploration & Prod. Co. | Zapata | Haynes-East #2 | 13,500 | 50532497 |
| 352714 | Oct 26, 1988 | Oct 26, 1988 | Pennzoil Exploration & Prod. Co. | Hartley | Nelson #1R | 7,000 | 20530201 |
| 352349 | Oct 20, 1988 | Oct 20, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Thompson Unit #4 | 9,800 | 36531965 |
| 352275 | Oct 17, 1988 | Oct 17, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Wilson Unit #3 | 9,800 | 36531964 |
| 352024 | Oct 17, 1988 | Oct 17, 1988 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 25 | 9,800 | 36531959 |
| 352261 | Oct 13, 1988 | Oct 13, 1988 | Pennzoil Exploration & Prod. Co. | Zapata | Vela, Roberto #3 | 9,000 | 50532492 |