| 469758 | Dec 4, 1997 | Dec 4, 1997 | Union Pacific Resources Company | Rusk | McAlister Gas Unit #5 | 11,800 | 40132796 |
| 470382 | Dec 2, 1997 | Dec 2, 1997 | Union Pacific Resources Company | Rusk | Holt, J. W. Estate Gas Unit #6 | 11,800 | 40133073 |
| 470381 | Dec 2, 1997 | Dec 2, 1997 | Union Pacific Resources Company | Rusk | Holt, J. W. Estate Gas Unit #5 | 11,800 | 40132811 |
| 470374 | Dec 2, 1997 | Dec 2, 1997 | Union Pacific Resources Company | Rusk | Holt, J. W. Estate Gas Unit #7 | 11,800 | 40132813 |
| 470059 | Dec 2, 1997 | Dec 2, 1997 | Union Pacific Resources Company | Panola | Cgu 26 #10 | 10,300 | 36533817 |
| 469938 | Dec 2, 1997 | Dec 2, 1997 | Union Pacific Resources Company | Panola | Cgu 14 #11 | 10,300 | 36533812 |
| 470375 | Dec 1, 1997 | Dec 1, 1997 | Union Pacific Resources Company | Rusk | Busby Estate "a" Gas Unit #6 | 11,800 | 40132809 |
| 469416 | Dec 1, 1997 | Dec 1, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #41 | 7,300 | 10537918 |
| 470595 | Nov 26, 1997 | Nov 26, 1997 | Union Pacific Resources Company | Robertson | Blacktail Unit #1H | 8,000 | 39530553 |
| 470578 | Nov 26, 1997 | Nov 26, 1997 | Union Pacific Resources Company | Robertson | Alice Hoelscher Unit #1H | 6,500 | 39530552 |
| 469455 | Nov 26, 1997 | Nov 26, 1997 | Union Pacific Resources Company | Crockett | Henderson, John W. III "K" #46 | 10,000 | 10537933 |
| 469282 | Nov 26, 1997 | Nov 26, 1997 | Union Pacific Resources Company | Rusk | Pool, W. B. Gas Unit #6 | 11,800 | 40132792 |
| 470561 | Nov 25, 1997 | Nov 25, 1997 | Union Pacific Resources Company | Brazos | Dansby "A" #4H | 8,900 | 04131118 |
| 470561Amendment | Nov 25, 1997 | Nov 25, 1997 | Union Pacific Resources Company | Brazos | Dansby "A" #4H | 8,900 | 04131118 |
| 470086 | Nov 25, 1997 | Nov 25, 1997 | Union Pacific Resources Company | Rusk | Fred Beck Estate Gas Unit #8 | 11,800 | 40132802 |
| 470454 | Nov 24, 1997 | Nov 24, 1997 | Union Pacific Resources Company | Milam | Weatherford Unit #1H | 7,000 | 33133492 |
| 470439 | Nov 21, 1997 | Nov 21, 1997 | Union Pacific Resources Company | Crockett | Millspaugh, Sarah C. "14D" #5R | 7,600 | 10537953 |
| 469898 | Nov 19, 1997 | Nov 19, 1997 | Union Pacific Resources Company | Panola | Cgu 13 #12 | 10,300 | 36533814 |
| 470085 | Nov 18, 1997 | Nov 18, 1997 | Union Pacific Resources Company | Rusk | Fred Beck Estate Gas Unit #7 | 11,800 | 40132803 |
| 469874 | Nov 18, 1997 | Nov 18, 1997 | Union Pacific Resources Company | Panola | South Gary Gas Unit 2 #4 | 10,300 | 36533813 |
| 469873 | Nov 18, 1997 | Nov 18, 1997 | Union Pacific Resources Company | Crockett | Henderson, J. W. "C" #5 | 7,300 | 10537936 |
| 469872 | Nov 18, 1997 | Nov 18, 1997 | Union Pacific Resources Company | Crockett | Henderson, J. W. "C" #7 | 7,300 | 10537937 |
| 469871 | Nov 18, 1997 | Nov 18, 1997 | Union Pacific Resources Company | Crockett | Henderson, J. W. "C" #6 | 7,300 | 10537938 |
| 469870 | Nov 18, 1997 | Nov 18, 1997 | Union Pacific Resources Company | Crockett | Montgomery "2" #6 | 7,200 | 10537939 |
| 469869 | Nov 18, 1997 | Nov 18, 1997 | Union Pacific Resources Company | Crockett | Bean, Vada "22B" #4 | 7,300 | 10537940 |
| 469868 | Nov 18, 1997 | Nov 18, 1997 | Union Pacific Resources Company | Crockett | Bean, Vada "22C" #5 | 7,300 | 10537942 |
| 469866 | Nov 18, 1997 | Nov 18, 1997 | Union Pacific Resources Company | Crockett | Bean, Vada "22C" #6 | 7,300 | 10537941 |
| 470004 | Nov 14, 1997 | Nov 14, 1997 | Union Pacific Resources Company | Crockett | Childress, Crystelle "3" #4 | 7,300 | 10537949 |
| 469962 | Nov 14, 1997 | Nov 14, 1997 | Union Pacific Resources Company | Rusk | Witcher, Louise #1 | 8,000 | 40132800 |
| 469954 | Nov 14, 1997 | Nov 14, 1997 | Union Pacific Resources Company | Rusk | Christian, Alice Estate -A- #7 | 11,800 | 40132799 |
| 469897 | Nov 14, 1997 | Nov 14, 1997 | Union Pacific Resources Company | Rusk | Alford "a" Gas Unit #8 | 11,800 | 40132798 |
| 469974 | Nov 12, 1997 | Nov 12, 1997 | Union Pacific Resources Company | Crockett | Childress, Crystelle "28D" #12 | 7,200 | 10537945 |
| 469973 | Nov 12, 1997 | Nov 12, 1997 | Union Pacific Resources Company | Crockett | Childress, Crystelle "28B" #9 | 7,200 | 10537947 |
| 469972 | Nov 12, 1997 | Nov 12, 1997 | Union Pacific Resources Company | Crockett | Childress, Crystelle "28D" #11 | 7,200 | 10537946 |
| 469759 | Nov 12, 1997 | Nov 12, 1997 | Union Pacific Resources Company | Rusk | McAlister Gas Unit #4 | 11,800 | 40132797 |
| 469882 | Nov 10, 1997 | Nov 10, 1997 | Union Pacific Resources Company | Fayette | Secretariat Unit #1H | 13,500 | 14933070 |
| 469881 | Nov 10, 1997 | Nov 10, 1997 | Union Pacific Resources Company | Crockett | Henderson "Ign" 7 #3 | 7,200 | 10537935 |
| 469880 | Nov 10, 1997 | Nov 10, 1997 | Union Pacific Resources Company | Crockett | Henderson "Ign" 7 #2 | 7,200 | 10537934 |
| 469804 | Nov 7, 1997 | Nov 7, 1997 | Union Pacific Resources Company | Fayette | Schramm Unit #1H | 10,000 | 14932378 |
| 469733 | Nov 6, 1997 | Nov 6, 1997 | Union Pacific Resources Company | Fayette | Barracuda Unit #2 | 11,000 | 14933069 |
| 469651 | Nov 6, 1997 | Nov 6, 1997 | Union Pacific Resources Company | Milam | Wolf Unit #1H | 7,000 | 33133491 |
| 469566 | Nov 6, 1997 | Nov 6, 1997 | Union Pacific Resources Company | Washington | Watford Unit #1H | 11,250 | 47730705 |
| 469411 | Nov 6, 1997 | Nov 6, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. GU "D" #9 | 7,300 | 10537923 |
| 469415 | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #44 | 7,300 | 10537922 |
| 469414 | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #45 | 7,300 | 10537921 |
| 469414Amendment | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #45 | 7,300 | 10537921 |
| 469413 | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #43 | 7,300 | 10537920 |
| 469412 | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #42 | 7,300 | 10537919 |
| 469410 | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Crockett | Hoover-State #3 | 7,200 | 10537924 |
| 469409 | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Crockett | Jones-Miller #7 | 10,200 | 10537929 |
| 469407 | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Crockett | Jones-Miller #5 | 7,000 | 10537927 |
| 469156 | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Panola | Gary Gas Unit #4 | 10,300 | 36533799 |
| 469156Amendment | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Panola | Gary Gas Unit #4 | 10,300 | 36533799 |
| 468274 | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Rusk | Alice Christian Estate Gas Unit #5 | 11,800 | 40132778 |
| 467497 | Nov 5, 1997 | Nov 5, 1997 | Union Pacific Resources Company | Crockett | Pierce-Henderson State 'Z' #8 | 7,400 | 10537882 |
| 469290 | Nov 4, 1997 | Nov 4, 1997 | Union Pacific Resources Company | Crockett | Perner Ranch #4301HH | 9,800 | 10537912 |
| 469289 | Nov 4, 1997 | Nov 4, 1997 | Union Pacific Resources Company | Crockett | Perner Ranch #3301HH | 10,200 | 10537913 |
| 469408 | Nov 3, 1997 | Nov 3, 1997 | Union Pacific Resources Company | Crockett | Jones-Miller #6 | 10,200 | 10537928 |
| 469406 | Nov 3, 1997 | Nov 3, 1997 | Union Pacific Resources Company | Crockett | Jones-Miller #3 | 7,000 | 10537926 |
| 469406Amendment | Nov 3, 1997 | Nov 3, 1997 | Union Pacific Resources Company | Crockett | Jones-Miller #3 | 7,000 | 10537926 |
| 469405 | Nov 3, 1997 | Nov 3, 1997 | Union Pacific Resources Company | Crockett | Jones-Miller #4 | 7,000 | 10537925 |
| 469288 | Nov 3, 1997 | Nov 3, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #38 | 10,200 | 10537914 |
| 469287 | Nov 3, 1997 | Nov 3, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #39 | 7,200 | 10537915 |
| 469286 | Nov 3, 1997 | Nov 3, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #40 | 7,200 | 10537916 |
| 469284 | Nov 3, 1997 | Nov 3, 1997 | Union Pacific Resources Company | Panola | Cgu 28 #9 | 10,300 | 36533801 |
| 469133 | Nov 3, 1997 | Nov 3, 1997 | Union Pacific Resources Company | Panola | South Gary Gas Unit 1 #5 | 10,300 | 36533796 |
| 469525 | Oct 31, 1997 | Oct 31, 1997 | Union Pacific Resources Company | Leon | Blue Unit #1H | 7,200 | 28931278 |
| 469157 | Oct 31, 1997 | Oct 31, 1997 | Union Pacific Resources Company | Panola | Cgu 8 #10 | 10,300 | 36533798 |
| 469459 | Oct 30, 1997 | Oct 30, 1997 | Union Pacific Resources Company | Crockett | Bean, Vada #8 | 10,000 | 10537930 |
| 469458 | Oct 30, 1997 | Oct 30, 1997 | Union Pacific Resources Company | Crockett | Henderson, John W. III "K" #47 | 10,000 | 10537932 |
| 469457 | Oct 30, 1997 | Oct 30, 1997 | Union Pacific Resources Company | Crockett | Bean, Vada #7 | 10,000 | 10537931 |
| 469456 | Oct 30, 1997 | Oct 30, 1997 | Union Pacific Resources Company | Lee | Hellscher-White Unit #1H | 9,000 | 28731647 |
| 469155 | Oct 30, 1997 | Oct 30, 1997 | Union Pacific Resources Company | Panola | South Gary Gas Unit 1 #6 | 10,300 | 36533797 |
| 466966 | Oct 30, 1997 | Oct 30, 1997 | Union Pacific Resources Company | Crockett | Henderson "7" #7 | 7,200 | 10537859 |
| 469403 | Oct 29, 1997 | Oct 29, 1997 | Union Pacific Resources Company | Washington | Cobb Unit #1H | 15,500 | 47730854 |
| 469158 | Oct 28, 1997 | Oct 28, 1997 | Union Pacific Resources Company | Brazos | Mancuso Unit #2H | 13,945 | 04131839 |
| 468012 | Oct 28, 1997 | Oct 28, 1997 | Union Pacific Resources Company | Crockett | Moody Minerals "21D" #6 | 7,400 | 10537892 |
| 469271 | Oct 27, 1997 | Oct 27, 1997 | Union Pacific Resources Company | Leon | Bobwhite Unit #1H | 7,200 | 28931277 |
| 469151 | Oct 23, 1997 | Oct 23, 1997 | Union Pacific Resources Company | Jasper | Goode, S. A-151 #1H | 12,500 | 24130646 |
| 469151Amendment | Oct 23, 1997 | Oct 23, 1997 | Union Pacific Resources Company | Jasper | Goode, S. A-151 #1H | 12,724 | 24130646 |
| 469137 | Oct 22, 1997 | Oct 22, 1997 | Union Pacific Resources Company | Robertson | Jax Unit #1H | 7,700 | 39530543 |
| 469137Amendment | Oct 22, 1997 | Oct 22, 1997 | Union Pacific Resources Company | Robertson | Jax Unit #1H | 7,700 | 39530543 |
| 468768 | Oct 22, 1997 | Oct 22, 1997 | Union Pacific Resources Company | Rusk | Fred Beck Estate Gas Unit #6 | 11,800 | 40132790 |
| 468756 | Oct 22, 1997 | Oct 22, 1997 | Union Pacific Resources Company | Rusk | W. B. Pool Gas Unit #5 | 11,800 | 40132788 |
| 468535 | Oct 22, 1997 | Oct 22, 1997 | Union Pacific Resources Company | Crockett | Robertson "6D" #4 | 7,200 | 10537903 |
| 469031 | Oct 21, 1997 | Oct 21, 1997 | Union Pacific Resources Company | Lee | Davis, Mollie C. #3REH | 8,800 | 28731371 |
| 467886 | Oct 21, 1997 | Oct 21, 1997 | Union Pacific Resources Company | Crockett | Couch 'D' #7HRH | 9,800 | 10537890 |
| 467886Amendment | Oct 21, 1997 | Oct 21, 1997 | Union Pacific Resources Company | Crockett | Couch 'D' #7HRH | 9,800 | 10537890 |
| 468867 | Oct 20, 1997 | Oct 20, 1997 | Union Pacific Resources Company | Crockett | Moody Minerals "29D" #1 | 7,450 | 10537910 |
| 468866 | Oct 20, 1997 | Oct 20, 1997 | Union Pacific Resources Company | Crockett | Moody Minerals "27B" #2 | 7,400 | 10537911 |
| 468767 | Oct 17, 1997 | Oct 17, 1997 | Union Pacific Resources Company | Rusk | Alford -a- Gas Unit #7 | 11,800 | 40132789 |
| 468766 | Oct 17, 1997 | Oct 17, 1997 | Union Pacific Resources Company | Dimmit | Fitzsimons "A" #6113 | 4,500 | 12733131 |
| 468765 | Oct 17, 1997 | Oct 17, 1997 | Union Pacific Resources Company | Dimmit | Fitzsimons "A" #3616 | 4,500 | 12733137 |
| 468764 | Oct 17, 1997 | Oct 17, 1997 | Union Pacific Resources Company | Dimmit | Fitzsimons "A" #4513 | 4,500 | 12733136 |
| 468762 | Oct 17, 1997 | Oct 17, 1997 | Union Pacific Resources Company | Dimmit | Fitzsimons "A" #6305 | 4,500 | 12733135 |
| 468760 | Oct 17, 1997 | Oct 17, 1997 | Union Pacific Resources Company | Dimmit | Fitzsimons "A" #6308 | 4,500 | 12733134 |
| 468759 | Oct 17, 1997 | Oct 17, 1997 | Union Pacific Resources Company | Dimmit | Fitzsimons "A" #4601 | 4,500 | 12733133 |
| 468757 | Oct 17, 1997 | Oct 17, 1997 | Union Pacific Resources Company | Dimmit | Fitzsimons "A" #6116 | 4,500 | 12733132 |
| 468755 | Oct 16, 1997 | Oct 16, 1997 | Union Pacific Resources Company | Rusk | Busby Estate Gas Unit #7 | 11,800 | 40132787 |
| 468842 | Oct 15, 1997 | Oct 15, 1997 | Union Pacific Resources Company | Jasper | Jordan Unit A-321 #1H | 12,500 | 24130645 |