| 113172 | Mar 24, 1981 | Mar 24, 1981 | American Petrofina Co. of Tex. | Garza | Southeast Garza Unit #317 | 3,150 | 16931487 |
| 113171 | Mar 24, 1981 | Mar 24, 1981 | American Petrofina Co. of Tex. | Garza | Southeast Garza Unit #319 | 3,150 | 16931486 |
| 113170 | Mar 24, 1981 | Mar 24, 1981 | American Petrofina Co. of Tex. | Garza | Southeast Garza Unit #318 | 3,150 | 16931485 |
| 113169 | Mar 24, 1981 | Mar 24, 1981 | American Petrofina Co. of Tex. | Garza | Southeast Garza Unit #214 | 3,100 | 16931484 |
| 113167 | Mar 24, 1981 | Mar 24, 1981 | American Petrofina Co. of Tex. | Garza | Southeast Garza Unit #213 | 3,100 | 16931483 |
| 113054 | Mar 24, 1981 | Mar 24, 1981 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #532 | 3,150 | 33531960 |
| 113053 | Mar 24, 1981 | Mar 24, 1981 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #531 | 3,150 | 33531959 |
| 113004 | Mar 19, 1981 | Mar 19, 1981 | American Petrofina Co. of Tex. | Smith | Perry Gas Unit #1 | 11,924 | 42330476 |
| 112326 | Mar 16, 1981 | Mar 16, 1981 | American Petrofina Co. of Tex. | Throckmorton | Bailes-Parmenter-Jones Unit 1 #8 | 4,950 | 44732680 |
| 112325 | Mar 16, 1981 | Mar 16, 1981 | American Petrofina Co. of Tex. | Shackelford | Matthews Sec. 33-34 #2-M | 4,915 | 41733840 |
| 112324 | Mar 16, 1981 | Mar 16, 1981 | American Petrofina Co. of Tex. | Throckmorton | Bailes-Parmenter-Jones Unit #10 | 4,827 | 44732679 |
| 112323 | Mar 16, 1981 | Mar 16, 1981 | American Petrofina Co. of Tex. | Throckmorton | Bailes-Parmenter-Jones Unit #1 #9 | 4,835 | 44732678 |
| 111472 | Mar 10, 1981 | Mar 10, 1981 | American Petrofina Co. of Tex. | Rusk | Ross, Essie #1 | 11,000 | 40131139 |
| 109869 | Feb 19, 1981 | Feb 19, 1981 | American Petrofina Co. of Tex. | Shackelford | Morris "M" #57 | 1,750 | 41733782 |
| 112704 | Feb 6, 1981 | Feb 6, 1981 | American Petrofina Co. of Tex. | Nueces | State Tract 973 #10 | 6,850 | 35581974 |
| 112702 | Feb 6, 1981 | Feb 6, 1981 | American Petrofina Co. of Tex. | Nueces | State Tract 973 #10 | 6,850 | 35502200 |
| 112701 | Feb 6, 1981 | Feb 6, 1981 | American Petrofina Co. of Tex. | Nueces | State Tract 973 #10 | 6,850 | 35502200 |
| 107357 | Feb 3, 1981 | Feb 3, 1981 | American Petrofina Co. of Tex. | Ector | East Penwell (San Andres) Unit #407-AW | 3,850 | 13533587 |
| 106717 | Jan 29, 1981 | Jan 29, 1981 | American Petrofina Co. of Tex. | Rusk | Dean, A. E. Gas Unit #1 #1 | 11,000 | 40131111 |
| 103560 | Dec 23, 1980 | Dec 23, 1980 | American Petrofina Co. of Tex. | Shackelford | Morris "M" #56 | 1,750 | 41733665 |
| 101966 | Dec 12, 1980 | Dec 12, 1980 | American Petrofina Co. of Tex. | Kleberg | State Tract 169 #2 | 10,278 | 27330380 |
| 101053 | Dec 5, 1980 | Dec 5, 1980 | American Petrofina Co. of Tex. | Gonzales | Carnes, Lee #1 | 8,347 | 17730205 |
| 100561 | Dec 1, 1980 | Dec 1, 1980 | American Petrofina Co. of Tex. | Nueces | Union Central Life Ins. Co. "B" #1 | 7,168 | 35581962 |
| 100719 | Nov 26, 1980 | Nov 26, 1980 | American Petrofina Co. of Tex. | Rusk | Dorsey, O. C. #1 | 11,000 | 40131078 |
| 100144 | Nov 21, 1980 | Nov 21, 1980 | American Petrofina Co. of Tex. | Goliad | Reed, S. H. #3 | 5,400 | 17531419 |
| 99675 | Nov 18, 1980 | Nov 18, 1980 | American Petrofina Co. of Tex. | Hockley | Miller, John, et Al #1 | 4,672 | 21933042 |
| 98840 | Nov 12, 1980 | Nov 12, 1980 | American Petrofina Co. of Tex. | Crane | Tubb "A" #21 | 3,100 | 10332407 |
| 98839 | Nov 12, 1980 | Nov 12, 1980 | American Petrofina Co. of Tex. | Crane | Tubb "A" #20 | 3,100 | 10332406 |
| 97634 | Oct 30, 1980 | Oct 30, 1980 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #8-W | 3,150 | 33531817 |
| 97632 | Oct 30, 1980 | Oct 30, 1980 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #1-W | 3,150 | 33531815 |
| 98859 | Oct 24, 1980 | Oct 24, 1980 | American Petrofina Co. of Tex. | Galveston | Clements, H. B. et Al #1 | 12,400 | 16730798 |
| 96703 | Oct 24, 1980 | Oct 24, 1980 | American Petrofina Co. of Tex. | Jackson | McCrory, W. W. #4 | 5,550 | 23931563 |
| 96474 | Oct 1, 1980 | Oct 1, 1980 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #208 | 3,150 | 33531822 |
| 96471 | Oct 1, 1980 | Oct 1, 1980 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #209 | 3,150 | 33531821 |
| 96469 | Oct 1, 1980 | Oct 1, 1980 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #104 | 3,191 | 33531814 |
| 96467 | Oct 1, 1980 | Oct 1, 1980 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #622 | 3,150 | 33531820 |
| 94177 | Sep 30, 1980 | Sep 30, 1980 | American Petrofina Co. of Tex. | Nueces | State Tract 973 #12 | 8,250 | 35531650 |
| 94026 | Sep 29, 1980 | Sep 29, 1980 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #208 | 3,181 | 33531819 |
| 94025 | Sep 29, 1980 | Sep 29, 1980 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #10W | 3,191 | 33532220 |
| 94024 | Sep 29, 1980 | Sep 29, 1980 | American Petrofina Co. of Tex. | Mitchell | Westbrook Southeast Unit #2W | 3,150 | 33531816 |
| 93391 | Sep 19, 1980 | Sep 19, 1980 | American Petrofina Co. of Tex. | Goliad | Reed, D. M. #4 | 5,400 | 17531390 |
| 93369 | Sep 19, 1980 | Sep 19, 1980 | American Petrofina Co. of Tex. | Guadalupe | Denman "C" #34 | 2,700 | 18731269 |
| 91315 | Sep 3, 1980 | Sep 3, 1980 | American Petrofina Co. of Tex. | Franklin | Terry, Jimmie Kate #19 D | 5,270 | 15930228 |
| 91277 | Sep 2, 1980 | Sep 2, 1980 | American Petrofina Co. of Tex. | Shackelford | Matthews 31 #85 | 1,100 | 41733486 |
| 93514 | Aug 29, 1980 | Aug 29, 1980 | American Petrofina Co. of Tex. | Galveston | Stewart, Maco #1 | 11,800 | 16730759 |
| 90217 | Aug 19, 1980 | Aug 19, 1980 | American Petrofina Co. of Tex. | Guadalupe | Denman "C" #31 | 2,700 | 18731245 |
| 90182 | Aug 19, 1980 | Aug 19, 1980 | American Petrofina Co. of Tex. | Hunt | Reedy, Sarah et Al #1 | 10,629 | 23130199 |
| 97831 | Aug 15, 1980 | Aug 15, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #317 | 3,100 | 16931319 |
| 88595 | Aug 4, 1980 | Aug 4, 1980 | American Petrofina Co. of Tex. | Hidalgo | Young Unit #4 | 7,800 | 21531188 |
| 87768 | Jul 25, 1980 | Jul 25, 1980 | American Petrofina Co. of Tex. | Nueces | State Tract 973 #11 | 5,836 | 35502194 |
| 87729 | Jul 24, 1980 | Jul 24, 1980 | American Petrofina Co. of Tex. | Hidalgo | Slavik #7 | 9,000 | 21531054 |
| 87057 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Post Estate "B" #1-D | 3,650 | 16931325 |
| 87020 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #415 | 3,100 | 16931324 |
| 87019 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #321 | 3,100 | 16931323 |
| 87018 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #320 | 3,100 | 16931322 |
| 87017 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #319 | 3,100 | 16931321 |
| 87015 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #318 | 3,100 | 16931320 |
| 87013 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #317 | 3,100 | 16931319 |
| 87012 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #208 | 3,100 | 16931318 |
| 87010 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #207 | 3,100 | 16931317 |
| 87008 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #116 | 3,100 | 16931316 |
| 87007 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #115 | 3,100 | 16931315 |
| 87005 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #114 | 3,100 | 16931314 |
| 87004 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #113 | 3,100 | 16931313 |
| 87003 | Jul 18, 1980 | Jul 18, 1980 | American Petrofina Co. of Tex. | Garza | Southwest Garza Unit #112 | 3,100 | 16931312 |
| 86688 | Jul 15, 1980 | Jul 15, 1980 | American Petrofina Co. of Tex. | Throckmorton | Bailes-Parmenter-Jones Unit 1 #7 | 4,850 | 44732298 |
| 86370 | Jul 10, 1980 | Jul 10, 1980 | American Petrofina Co. of Tex. | Rusk | Dorsey, C. B. Gas Unit #2 #1 | 11,000 | 40131002 |
| 87162 | Jun 24, 1980 | Jun 24, 1980 | American Petrofina Co. of Tex. | Nueces | Rivers, W. C. #6 | 6,812 | 35531174 |
| 84861 | Jun 24, 1980 | Jun 24, 1980 | American Petrofina Co. of Tex. | Hidalgo | Ramey, Alex Unit 1 #6 | 6,650 | 21531046 |
| 85727 | Jun 18, 1980 | Jun 18, 1980 | American Petrofina Co. of Tex. | Garza | Post Estate "A" #1D | 3,250 | 16931293 |
| 83000 | Jun 5, 1980 | Jun 5, 1980 | American Petrofina Co. of Tex. | Titus | Pewitt "H" #1 | 275 | 44930269 |
| 82969 | Jun 4, 1980 | Jun 4, 1980 | American Petrofina Co. of Tex. | Mitchell | Coleman Ranch Unit #901W | 3,000 | 33531745 |
| 82967 | Jun 4, 1980 | Jun 4, 1980 | American Petrofina Co. of Tex. | Mitchell | Coleman Ranch Unit #802W | 3,000 | 33531744 |
| 82966 | Jun 4, 1980 | Jun 4, 1980 | American Petrofina Co. of Tex. | Mitchell | Coleman Ranch Unit #602W | 3,000 | 33531743 |
| 82964 | Jun 4, 1980 | Jun 4, 1980 | American Petrofina Co. of Tex. | Mitchell | Coleman Ranch Unit #201W | 3,000 | 33531742 |
| 82531 | May 30, 1980 | May 30, 1980 | American Petrofina Co. of Tex. | Mitchell | Coleman Ranch Unit #808 | 3,290 | 33531741 |
| 82530 | May 30, 1980 | May 30, 1980 | American Petrofina Co. of Tex. | Mitchell | Coleman Ranch Unit #205 | 3,000 | 33531740 |
| 82528 | May 30, 1980 | May 30, 1980 | American Petrofina Co. of Tex. | Mitchell | Coleman Ranch Unit #204 | 3,000 | 33531739 |
| 82491 | May 30, 1980 | May 30, 1980 | American Petrofina Co. of Tex. | Mitchell | Coleman Ranch Unit #505 | 3,000 | 33531738 |
| 82490 | May 30, 1980 | May 30, 1980 | American Petrofina Co. of Tex. | Mitchell | Coleman Ranch Unit #407 | 3,000 | 33531737 |
| 82284 | May 28, 1980 | May 28, 1980 | American Petrofina Co. of Tex. | Shackelford | Matthews "A" #84 | 1,000 | 41733358 |
| 82169 | May 27, 1980 | May 27, 1980 | American Petrofina Co. of Tex. | Shackelford | Matthews Sec. 31 #83 | 1,000 | 41733357 |
| 81866 | May 22, 1980 | May 22, 1980 | American Petrofina Co. of Tex. | Mitchell | Coleman Ranch Unit #604 | 3,000 | 33531729 |
| 81847 | May 22, 1980 | May 22, 1980 | American Petrofina Co. of Tex. | Rusk | Wright, J. T. Gas Unit #1 | 11,000 | 40130983 |
| 81393 | May 16, 1980 | May 16, 1980 | American Petrofina Co. of Tex. | Refugio | Fox, W. J. (Tract 1) #6 | 6,600 | 39131314 |
| 81270 | May 15, 1980 | May 15, 1980 | American Petrofina Co. of Tex. | Shackelford | Matthews Sec. 31 #82 | 1,000 | 41733350 |
| 83413 | May 12, 1980 | May 12, 1980 | American Petrofina Co. of Tex. | Titus | Pewitt "A" #7 | 4,750 | 44930254 |
| 80674 | May 8, 1980 | May 8, 1980 | American Petrofina Co. of Tex. | Jim Wells | De Garcia, Paula V. #16 | 5,735 | 24980807 |
| 83531 | May 2, 1980 | May 2, 1980 | American Petrofina Co. of Tex. | Rusk | Cooper, Neal #2R | 3,800 | 40130954 |
| 78318 | Apr 15, 1980 | Apr 15, 1980 | American Petrofina Co. of Tex. | Garza | Southeast Garza Unit #126 | 3,100 | 16931252 |
| 78317 | Apr 15, 1980 | Apr 15, 1980 | American Petrofina Co. of Tex. | Garza | Southeast Garza Unit #127 | 3,100 | 16931251 |
| 78315 | Apr 15, 1980 | Apr 15, 1980 | American Petrofina Co. of Tex. | Garza | Southeast Garza Unit #128 | 3,100 | 16931250 |
| 78312 | Apr 15, 1980 | Apr 15, 1980 | American Petrofina Co. of Tex. | Garza | Southeast Garza Unit #211 | 3,100 | 16931249 |
| 78310 | Apr 15, 1980 | Apr 15, 1980 | American Petrofina Co. of Tex. | Garza | Southeast Garza Unit #212 | 3,100 | 16931248 |
| 78397 | Apr 11, 1980 | Apr 11, 1980 | American Petrofina Co. of Tex. | Titus | Pewitt "H" #9 | 4,750 | 44930253 |
| 78001 | Apr 11, 1980 | Apr 11, 1980 | American Petrofina Co. of Tex. | Archer | Block Estate #3 | 1,114 | 00934308 |
| 77576 | Apr 8, 1980 | Apr 8, 1980 | American Petrofina Co. of Tex. | Borden | Jones, Don A. #1 | 8,586 | 03330569 |
| 78062 | Apr 2, 1980 | Apr 2, 1980 | American Petrofina Co. of Tex. | Franklin | Terry, Jimmie Kate #19 | 5,200 | 15930228 |
| 76370 | Mar 27, 1980 | Mar 27, 1980 | American Petrofina Co. of Tex. | Titus | Pewitt "A" #6 | 4,700 | 44930250 |
| 73162 | Feb 19, 1980 | Feb 19, 1980 | American Petrofina Co. of Tex. | Titus | Pewitt "B" #12 | 4,750 | 44930240 |