| 463733 | Jul 7, 1997 | Jul 7, 1997 | Union Pacific Resources Company | Crockett | Montgomery, C. C. "2B" #8 | 6,800 | 10537732 |
| 463088 | Jul 7, 1997 | Jul 7, 1997 | Union Pacific Resources Company | Crockett | Clegg #5413 | 7,300 | 10537718 |
| 464557 | Jul 3, 1997 | Jul 3, 1997 | Union Pacific Resources Company | Burleson | Slovacek-Slovacek Unit #2H | 8,800 | 05130942 |
| 464557Amendment | Jul 3, 1997 | Jul 3, 1997 | Union Pacific Resources Company | Burleson | Slovacek-Slovacek #2H | 8,800 | 05130942 |
| 463871 | Jul 3, 1997 | Jul 3, 1997 | Union Pacific Resources Company | Sutton | Allison, Lea '41' #1HH | 6,000 | 43534731 |
| 463871Amendment | Jul 3, 1997 | Jul 3, 1997 | Union Pacific Resources Company | Sutton | Allison, Lea '41' #1HH | 6,000 | 43534731 |
| 463200 | Jul 3, 1997 | Jul 3, 1997 | Union Pacific Resources Company | Terrell | Lupus "7" #1 | 7,500 | 44330748 |
| 464477 | Jul 2, 1997 | Jul 2, 1997 | Union Pacific Resources Company | Nueces | Butts, J.B. #15 | 7,800 | 35533088 |
| 464476 | Jul 2, 1997 | Jul 2, 1997 | Union Pacific Resources Company | Rusk | Leath Estate Gas Unit #7 | 11,500 | 40132732 |
| 464475 | Jul 2, 1997 | Jul 2, 1997 | Union Pacific Resources Company | Panola | South Gary Gas Unit 2 #3 | 10,000 | 36533713 |
| 464440 | Jul 1, 1997 | Jul 1, 1997 | Union Pacific Resources Company | Fayette | Graham-Graham Unit #1H | 11,500 | 14932663 |
| 461986 | Jul 1, 1997 | Jul 1, 1997 | Union Pacific Resources Company | Crockett | Hoover, Laura Estate "51" #7 | 7,600 | 10537695 |
| 464319 | Jun 27, 1997 | Jun 27, 1997 | Union Pacific Resources Company | Crockett | Union Pacific-Montgomery #78HH | 9,500 | 10537764 |
| 462863 | Jun 27, 1997 | Jun 27, 1997 | Union Pacific Resources Company | Panola | Neal, Sallie J. "a" Unit #10 | 10,000 | 36533685 |
| 463950 | Jun 26, 1997 | Jun 26, 1997 | Union Pacific Resources Company | Milam | Bailey-Hann Unit #1H | 6,500 | 33133484 |
| 463053 | Jun 24, 1997 | Jun 24, 1997 | Union Pacific Resources Company | Nueces | Wardner, G. P. #259 | 7,900 | 35533082 |
| 462862 | Jun 24, 1997 | Jun 24, 1997 | Union Pacific Resources Company | Crockett | Clegg, Eloise Carson #903 | 7,128 | 10537712 |
| 463951 | Jun 23, 1997 | Jun 23, 1997 | Union Pacific Resources Company | Zapata | Amoco Fee #6 | 11,200 | 50533632 |
| 463949 | Jun 23, 1997 | Jun 23, 1997 | Union Pacific Resources Company | Val Verde | Arledge-State #2 | 5,300 | 46530550 |
| 462801 | Jun 23, 1997 | Jun 23, 1997 | Union Pacific Resources Company | Brazos | Myers Cattle Unit #3H | 16,200 | 04131903 |
| 463976 | Jun 19, 1997 | Jun 19, 1997 | Union Pacific Resources Company | Crockett | Jones, E.K. #1RHH | 11,700 | 10535478 |
| 463870 | Jun 19, 1997 | Jun 19, 1997 | Union Pacific Resources Company | Sutton | McDermott '23' #1HH | 6,000 | 43534730 |
| 463710 | Jun 19, 1997 | Jun 19, 1997 | Union Pacific Resources Company | Austin | Goldberg Unit #1H | 15,500 | 01530703 |
| 461989 | Jun 18, 1997 | Jun 18, 1997 | Union Pacific Resources Company | Crockett | Millspaugh, Dorothy "22D" #5 | 7,500 | 10537692 |
| 461283 | Jun 18, 1997 | Jun 18, 1997 | Union Pacific Resources Company | Zapata | Bravo #1 | 8,900 | 50532312 |
| 461283Amendment | Jun 18, 1997 | Jun 18, 1997 | Union Pacific Resources Company | Zapata | Bravo Unit #1 | 8,900 | 50532312 |
| 463794 | Jun 16, 1997 | Jun 16, 1997 | Union Pacific Resources Company | Sutton | Aldwell '22' #1HH | 8,700 | 43534729 |
| 463793 | Jun 16, 1997 | Jun 16, 1997 | Union Pacific Resources Company | Washington | Jarmon Unit #1H | 15,500 | 47730848 |
| 463793Amendment | Jun 16, 1997 | Jun 16, 1997 | Union Pacific Resources Company | Washington | Jarmon Unit #1H | 15,500 | 47730848 |
| 463748 | Jun 13, 1997 | Jun 13, 1997 | Union Pacific Resources Company | San Augustine | Temple Inland Unit A-380 #1H | 16,200 | 40530175 |
| 463747 | Jun 13, 1997 | Jun 13, 1997 | Union Pacific Resources Company | Milam | Musk OX Unit #1H | 3,500 | 33133483 |
| 463747Amendment | Jun 13, 1997 | Jun 13, 1997 | Union Pacific Resources Company | Milam | Musk OX Unit #1H | 3,500 | 33133483 |
| 463348 | Jun 13, 1997 | Jun 13, 1997 | Union Pacific Resources Company | Crockett | Davidson #1711 | 8,300 | 10537722 |
| 463292 | Jun 10, 1997 | Jun 10, 1997 | Union Pacific Resources Company | Crockett | Watson Ranch #2503 | 7,000 | 10537720 |
| 463290 | Jun 10, 1997 | Jun 10, 1997 | Union Pacific Resources Company | Leon | Warhawk Unit #1 | 18,500 | 28931268 |
| 463490 | Jun 9, 1997 | Jun 9, 1997 | Union Pacific Resources Company | Jasper | Black Stone Minerals A-15 #1H | 11,000 | 24130639 |
| 463353 | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Crockett | Davidson #1712 | 8,300 | 10537721 |
| 463351 | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Milam | Brown-Ely Unit #1H | 6,500 | 33133482 |
| 463351Amendment | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Milam | Brown-Ely Unit #1H | 6,500 | 33133482 |
| 463349 | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Crockett | Davidson #3504 | 8,500 | 10537723 |
| 463206 | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Scott-State "6" #1 | 7,500 | 44330744 |
| 463206Amendment | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Scott-State "6" #1 | 7,500 | 44330744 |
| 463205 | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Scott-State "6" #2 | 7,500 | 44330743 |
| 463205Amendment | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Scott-State "6" #2 | 7,500 | 44330743 |
| 463204 | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Altered State #3 | 7,500 | 44330745 |
| 463204Amendment | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Altered State #3 | 7,500 | 44330745 |
| 463203 | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Altered State #2 | 7,500 | 44330746 |
| 463203Amendment | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Altered State #2 | 7,500 | 44330746 |
| 463203Amendment | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Altered State #2 | 7,500 | 44330746 |
| 463202 | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Scott-State "6" #3 | 7,500 | 44330742 |
| 463202Amendment | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Scott-State "6" #3 | 7,500 | 44330742 |
| 463201 | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Howling Wolf "5" #1 | 7,500 | 44330747 |
| 463201Amendment | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Howling Wolf "5" #1 | 7,500 | 44330747 |
| 463201Amendment | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Terrell | Howling Wolf "5" #1 | 7,500 | 44330747 |
| 463090 | Jun 5, 1997 | Jun 5, 1997 | Union Pacific Resources Company | Panola | South Gary Gas Unit 1 #3 | 10,300 | 36533692 |
| 463286 | Jun 4, 1997 | Jun 4, 1997 | Union Pacific Resources Company | Lee | Marva Unit #1REH | 9,000 | 28730360 |
| 463052 | Jun 4, 1997 | Jun 4, 1997 | Union Pacific Resources Company | Panola | Fite, Ellis #1307C | 9,670 | 36532160 |
| 463052Amendment | Jun 4, 1997 | Jun 4, 1997 | Union Pacific Resources Company | Panola | Cgu 13 #7C | 9,670 | 36532160 |
| 462964 | May 30, 1997 | May 30, 1997 | Union Pacific Resources Company | Panola | Cgu 30 #8 | 10,300 | 36533687 |
| 462963 | May 30, 1997 | May 30, 1997 | Union Pacific Resources Company | Smith | Tucker "G" Gas Unit #3 | 12,500 | 42331490 |
| 462861 | May 30, 1997 | May 30, 1997 | Union Pacific Resources Company | Crockett | Watson Ranch #3401 | 7,000 | 10537713 |
| 462860 | May 30, 1997 | May 30, 1997 | Union Pacific Resources Company | Crockett | Clegg "84" #4 | 7,600 | 10537714 |
| 462859 | May 30, 1997 | May 30, 1997 | Union Pacific Resources Company | Crockett | Carson "54" #6 | 7,400 | 10537715 |
| 462662 | May 29, 1997 | May 29, 1997 | Union Pacific Resources Company | Nueces | Wardner, G. P. #258 | 8,000 | 35533080 |
| 461811 | May 28, 1997 | May 28, 1997 | Union Pacific Resources Company | Brazos | McFarlane #4H | 15,200 | 04131901 |
| 462858 | May 27, 1997 | May 27, 1997 | Union Pacific Resources Company | Leon | Upr/T-Bar-X King Cobra #1 | 17,700 | 28931266 |
| 462858Amendment | May 27, 1997 | May 27, 1997 | Union Pacific Resources Company | Leon | Upr/T-Bar-X King Cobra #1 | 17,700 | 28931266 |
| 462858Amendment | May 27, 1997 | May 27, 1997 | Union Pacific Resources Company | Leon | Upr/T-Bar-X King Cobra #1 | 18,038 | 28931266 |
| 462804 | May 27, 1997 | May 27, 1997 | Union Pacific Resources Company | Kleberg | Wardner, G. P. #257 | 8,000 | 27332249 |
| 462869 | May 23, 1997 | May 23, 1997 | Union Pacific Resources Company | Robertson | Grizzly Unit #1H | 7,200 | 39530510 |
| 462526 | May 22, 1997 | May 22, 1997 | Union Pacific Resources Company | Milam | Albright-Weatherford Unit #1H | 6,900 | 33133481 |
| 462526Amendment | May 22, 1997 | May 22, 1997 | Union Pacific Resources Company | Milam | Albright-Weatherford Unit #1H | 6,900 | 33133481 |
| 462718 | May 21, 1997 | May 21, 1997 | Union Pacific Resources Company | Fayette | Pyrite Unit #1H | 11,100 | 14933049 |
| 462718Amendment | May 21, 1997 | May 21, 1997 | Union Pacific Resources Company | Fayette | Pyrite Unit #1H | 11,100 | 14933049 |
| 461222 | May 21, 1997 | May 21, 1997 | Union Pacific Resources Company | Panola | Cgu 19 #4 | 9,750 | 36531970 |
| 461057 | May 21, 1997 | May 21, 1997 | Union Pacific Resources Company | Crockett | Henderson "20" #4HH | 10,000 | 10537660 |
| 462664 | May 20, 1997 | May 20, 1997 | Union Pacific Resources Company | Fayette | Castleman Unit #1H | 10,000 | 14933048 |
| 462663 | May 20, 1997 | May 20, 1997 | Union Pacific Resources Company | Nueces | Texon Royalty Co. #F 12 | 1,000 | 35505349 |
| 461534 | May 20, 1997 | May 20, 1997 | Union Pacific Resources Company | Panola | Cgu 6 #9C | 9,678 | 36532865 |
| 462624 | May 19, 1997 | May 19, 1997 | Union Pacific Resources Company | Crockett | Montgomery, C. C. "5C" #8 | 7,000 | 10537707 |
| 462338 | May 19, 1997 | May 19, 1997 | Union Pacific Resources Company | Panola | Cgu 35 #4 | 10,500 | 36533673 |
| 462338Amendment | May 19, 1997 | May 19, 1997 | Union Pacific Resources Company | Panola | Cgu 35 #4 | 10,500 | 36533673 |
| 461407 | May 15, 1997 | May 15, 1997 | Union Pacific Resources Company | Crockett | Couch 2-29 #3HH | 10,000 | 10537678 |
| 461404 | May 15, 1997 | May 15, 1997 | Union Pacific Resources Company | Crockett | Bean 26 #12HH | 10,000 | 10537677 |
| 461404Amendment | May 15, 1997 | May 15, 1997 | Union Pacific Resources Company | Crockett | Bean 26 #12HH | 10,000 | 10537677 |
| 462113 | May 14, 1997 | May 14, 1997 | Union Pacific Resources Company | Zapata | Alexander, M. M. #7 | 10,500 | 50533607 |
| 462370 | May 13, 1997 | May 13, 1997 | Union Pacific Resources Company | Val Verde | Altizer "54" #1HH | 11,000 | 46530546 |
| 461893 | May 12, 1997 | May 12, 1997 | Union Pacific Resources Company | Crockett | Marley, Jess "B" #2RHH | 12,000 | 10537011 |
| 462240 | May 9, 1997 | May 9, 1997 | Union Pacific Resources Company | Sutton | Aldwell "13" #1HH | 9,000 | 43534716 |
| 462114 | May 8, 1997 | May 8, 1997 | Union Pacific Resources Company | Zapata | Vela (Share No. 1) #16 | 10,500 | 50533606 |
| 462114Amendment | May 8, 1997 | May 8, 1997 | Union Pacific Resources Company | Zapata | Vela #16 | 10,500 | 50533606 |
| 461991 | May 8, 1997 | May 8, 1997 | Union Pacific Resources Company | Crockett | Hutchings "A" #2043 | 7,500 | 10537691 |
| 461988 | May 8, 1997 | May 8, 1997 | Union Pacific Resources Company | Crockett | Hoover, Laura Estate "51" #6 | 7,600 | 10537693 |
| 461987 | May 8, 1997 | May 8, 1997 | Union Pacific Resources Company | Crockett | Moody Minerals "9B" #8 | 7,500 | 10537694 |
| 460732 | May 8, 1997 | May 8, 1997 | Union Pacific Resources Company | Crockett | Millspaugh, S. C. "2" #9 | 7,500 | 10537652 |
| 462958 | May 7, 1997 | May 7, 1997 | Union Pacific Resources Company | Crockett | Hoover Estate "19B" #2R | 7,600 | 10537716 |
| 462117 | May 7, 1997 | May 7, 1997 | Union Pacific Resources Company | Burleson | Winchester Unit #1H | 7,500 | 05133558 |
| 462117Amendment | May 7, 1997 | May 7, 1997 | Union Pacific Resources Company | Burleson | Winchester Unit #1H | 7,500 | 05133558 |
| 461894 | May 7, 1997 | May 7, 1997 | Union Pacific Resources Company | Dimmit | Fitzsimmons "A" #2 | 4,400 | 12733112 |
| 460913 | May 7, 1997 | May 7, 1997 | Union Pacific Resources Company | Crockett | Moody Minerals "9A" #4 | 7,700 | 10537656 |