| 388908 | Jun 12, 1991 | Jun 12, 1991 | Union Pacific Resources Company | Gonzales | Borchers-Bell Unit #1H17731931 | 11,400 |
| 388907 | Jun 12, 1991 | Jun 12, 1991 | Union Pacific Resources Company | Brazos | J. E. Weedon Unit #2H04131508 | 13,200 |
| 388905 | Jun 12, 1991 | Jun 12, 1991 | Union Pacific Resources Company | Burleson | Rhodes-Knesek Unit #3H05133249 | 11,700 |
| 388025 | Jun 12, 1991 | Jun 12, 1991 | Union Pacific Resources Company | Fayette | Green-Green Unit #1H14932458 | 14,300 |
| 388873 | Jun 11, 1991 | Jun 11, 1991 | Union Pacific Resources Company | Nueces | Elliff, J.S. et Al #2035531844 | 9,006 |
| 388872 | Jun 11, 1991 | Jun 11, 1991 | Union Pacific Resources Company | Panola | Cgu 18 #836532502 | 4,600 |
| 388789 | Jun 10, 1991 | Jun 10, 1991 | Union Pacific Resources Company | Victoria | McFaddin "A" #4146932738 | 6,512 |
| 388736 | Jun 6, 1991 | Jun 6, 1991 | Union Pacific Resources Company | Fayette | McCollum-Belota Unit #1H14932464 | 14,300 |
| 388735 | Jun 6, 1991 | Jun 6, 1991 | Union Pacific Resources Company | Fayette | Boening-Polasek Unit #1H14932463 | 13,100 |
| 388663 | Jun 5, 1991 | Jun 5, 1991 | Union Pacific Resources Company | Panola | Cgu 20 #636532012 | 9,800 |
| 387891 | Jun 4, 1991 | Jun 4, 1991 | Union Pacific Resources Company | Lee | Brown Unit #128731222 | 8,909 |
| 388564 | Jun 3, 1991 | Jun 3, 1991 | Union Pacific Resources Company | Burleson | Novosad-Slovacek "a" Unit #205131123 | 8,420 |
| 388517 | May 31, 1991 | May 31, 1991 | Union Pacific Resources Company | Gonzales | Nelson-Chenault Unit #1H17731924 | 16,700 |
| 388457 | May 30, 1991 | May 30, 1991 | Union Pacific Resources Company | Burleson | Novosad-Slovacek Unit #105130942 | 8,468 |
| 388366 | May 28, 1991 | May 28, 1991 | Union Pacific Resources Company | Nueces | Texon Royality Co. #535505260 | 6,467 |
| 388313 | May 24, 1991 | May 24, 1991 | Union Pacific Resources Company | Fayette | Schubert-Hobratschk Unit #1H14932459 | 16,000 |
| 388312 | May 24, 1991 | May 24, 1991 | Union Pacific Resources Company | Fayette | Wiesenhutter-Zoch Unit #1H14932460 | 13,100 |
| 388263 | May 23, 1991 | May 23, 1991 | Union Pacific Resources Company | Nueces | Bush-Wofford -B- #435532659 | 8,050 |
| 388148 | May 20, 1991 | May 20, 1991 | Union Pacific Resources Company | Burleson | Maass-Giesenschlag Unit #1H05133243 | 13,500 |
| 388148Amendment | May 20, 1991 | May 20, 1991 | Union Pacific Resources Company | Burleson | Maass-Giesenschlag Unit #1H05133243 | 13,926 |
| 387214 | May 20, 1991 | May 20, 1991 | Union Pacific Resources Company | Brazos | Scott-Ruesink Unit #1H04131500 | 11,800 |
| 388056 | May 17, 1991 | May 17, 1991 | Union Pacific Resources Company | Gonzales | Billings-Gerhart Unit #1H17731919 | 13,600 |
| 387744 | May 10, 1991 | May 10, 1991 | Union Pacific Resources Company | Nueces | Wardner, G. P. #18635532663 | 8,056 |
| 387693 | May 9, 1991 | May 9, 1991 | Union Pacific Resources Company | Lee | Arthur Urban Unit #128731555 | 8,440 |
| 387692 | May 9, 1991 | May 9, 1991 | Union Pacific Resources Company | Burleson | Moehlman, Henry Jr. #1H05133237 | 10,700 |
| 386951 | May 9, 1991 | May 9, 1991 | Union Pacific Resources Company | Fayette | Walther-Hempel Unit #1H14932450 | 14,000 |
| 387618 | May 7, 1991 | May 7, 1991 | Union Pacific Resources Company | Hidalgo | A. Guerra "B" Unit #621531838 | 8,350 |
| 387536 | May 6, 1991 | May 6, 1991 | Union Pacific Resources Company | Gonzales | Cone-Dubose Unit #1H17731910 | 14,300 |
| 387533 | May 6, 1991 | May 6, 1991 | Union Pacific Resources Company | Fayette | Cruse-Lehmann Unit #1H14932456 | 13,700 |
| 387442 | May 3, 1991 | May 3, 1991 | Union Pacific Resources Company | Fayette | Warda-Mitschke Unit #1H14932455 | 13,400 |
| 387375 | May 1, 1991 | May 1, 1991 | Union Pacific Resources Company | Kleberg | Wardner, G.P. #13827331320 | 8,557 |
| 387374 | May 1, 1991 | May 1, 1991 | Union Pacific Resources Company | Burleson | Knight-Haines Unit #2H05133233 | 11,400 |
| 387322 | Apr 30, 1991 | Apr 30, 1991 | Union Pacific Resources Company | Victoria | McFaddin -B- #2646932749 | 6,970 |
| 387322Amendment | Apr 30, 1991 | Apr 30, 1991 | Union Pacific Resources Company | Victoria | McFaddin -B- #2646932749 | 6,970 |
| 387320 | Apr 30, 1991 | Apr 30, 1991 | Union Pacific Resources Company | Victoria | McFaddin -B- #2446932746 | 6,900 |
| 387319 | Apr 30, 1991 | Apr 30, 1991 | Union Pacific Resources Company | Fayette | Von Rosenberg-Buscha Unit #1H14932453 | 14,300 |
| 387257 | Apr 29, 1991 | Apr 29, 1991 | Union Pacific Resources Company | Nueces | Wardner, G.P. #7635505318 | 7,710 |
| 387255 | Apr 29, 1991 | Apr 29, 1991 | Union Pacific Resources Company | Starr | Guerra, F.B. Estate "B" #1142732299 | 8,175 |
| 387251 | Apr 29, 1991 | Apr 29, 1991 | Union Pacific Resources Company | Panola | J.F. Hancock Unit #136501602 | 6,454 |
| 387213 | Apr 26, 1991 | Apr 26, 1991 | Union Pacific Resources Company | Hidalgo | Goldston, W. L. et Al #3621531925 | 7,300 |
| 386383 | Apr 26, 1991 | Apr 26, 1991 | Union Pacific Resources Company | Nueces | Bevly Gas Unit #135531856 | 10,800 |
| 387124 | Apr 25, 1991 | Apr 25, 1991 | Union Pacific Resources Company | Gonzales | Borchers Trust #2H17731904 | 12,000 |
| 387124Amendment | Apr 25, 1991 | Apr 25, 1991 | Union Pacific Resources Company | Gonzales | Borchers Trust #2H17731904 | 11,853 |
| 387084 | Apr 25, 1991 | Apr 25, 1991 | Union Pacific Resources Company | Panola | Kyle, J.R. -A- #536532471 | 9,950 |
| 387125 | Apr 24, 1991 | Apr 24, 1991 | Union Pacific Resources Company | Burleson | Lightsey-Loehr "a" Unit #1H05133227 | 11,700 |
| 387123 | Apr 24, 1991 | Apr 24, 1991 | Union Pacific Resources Company | Burleson | Calvin, William #1H05133228 | 10,400 |
| 386202 | Apr 19, 1991 | Apr 19, 1991 | Union Pacific Resources Company | Brazos | Ribardo-Ribardo Unit #3H04131497 | 13,000 |
| 386952 | Apr 18, 1991 | Apr 18, 1991 | Union Pacific Resources Company | Fayette | Kraatz-Sorrells Unit #1H14932451 | 13,400 |
| 386878 | Apr 17, 1991 | Apr 17, 1991 | Union Pacific Resources Company | Burleson | Knight, Thomas #1H05133226 | 12,000 |
| 386878Amendment | Apr 17, 1991 | Apr 17, 1991 | Union Pacific Resources Company | Burleson | Knight-Knight Unit #1H05133226 | 12,000 |
| 386810 | Apr 15, 1991 | Apr 15, 1991 | Union Pacific Resources Company | Gonzales | Najvar-Kullin Unit #1H17731902 | 14,500 |
| 386809 | Apr 15, 1991 | Apr 15, 1991 | Union Pacific Resources Company | Brazos | Dansby, E. M. "A" #304130990 | 8,882 |
| 386808 | Apr 15, 1991 | Apr 15, 1991 | Union Pacific Resources Company | Burleson | Smith-Knolle Unit #1H05133225 | 14,850 |
| 386740 | Apr 12, 1991 | Apr 12, 1991 | Union Pacific Resources Company | Burleson | Brinkman-Green Unit #2H05133224 | 12,600 |
| 386381 | Apr 12, 1991 | Apr 12, 1991 | Union Pacific Resources Company | Nueces | Cody #235531691 | 4,662 |
| 386677 | Apr 11, 1991 | Apr 11, 1991 | Union Pacific Resources Company | Burleson | Barton-Stufflebeme Unit #1H05133222 | 11,000 |
| 386677Amendment | Apr 11, 1991 | Apr 11, 1991 | Union Pacific Resources Company | Burleson | Barton-Stufflebeme Unit #1H05133222 | 10,150 |
| 386619 | Apr 10, 1991 | Apr 10, 1991 | Union Pacific Resources Company | Burleson | Scamardo, Morris #3H05133220 | 11,700 |
| 386450 | Apr 5, 1991 | Apr 5, 1991 | Union Pacific Resources Company | Brazos | Fazzino-Mines Unit #1H04131499 | 13,700 |
| 386450Amendment | Apr 5, 1991 | Apr 5, 1991 | Union Pacific Resources Company | Brazos | Fazzino-Fazzino Unit #1H04131499 | 11,100 |
| 386389 | Apr 4, 1991 | Apr 4, 1991 | Union Pacific Resources Company | Gonzales | Peters, Jack #1H17731899 | 16,400 |
| 386385 | Apr 4, 1991 | Apr 4, 1991 | Union Pacific Resources Company | Nueces | Gruene, O.A. #1435532623 | 8,000 |
| 386378 | Apr 4, 1991 | Apr 4, 1991 | Union Pacific Resources Company | Nueces | Bush-Wofford "F" #235532664 | 7,750 |
| 385611 | Apr 3, 1991 | Apr 3, 1991 | Union Pacific Resources Company | Wheeler | Williams, G.W. #1448331430 | 3,000 |
| 386249Amendment | Apr 1, 1991 | Apr 1, 1991 | Union Pacific Resources Company | Burleson | Hutchings, Robert #H 1H05133218 | 16,000 |
| 386219 | Mar 29, 1991 | Mar 29, 1991 | Union Pacific Resources Company | Fayette | Taylor, W. L. et UX #1H14932447 | 12,600 |
| 386219Amendment | Mar 29, 1991 | Mar 29, 1991 | Union Pacific Resources Company | Fayette | Taylor-Taylor Unit #1H14932447 | 13,700 |
| 386219Amendment | Mar 29, 1991 | Mar 29, 1991 | Union Pacific Resources Company | Fayette | Taylor, W. L. #1H14932447 | 9,816 |
| 386128 | Mar 26, 1991 | Mar 26, 1991 | Union Pacific Resources Company | Nueces | Wardner, G. P. #17835532643 | 8,400 |
| 386101 | Mar 25, 1991 | Mar 25, 1991 | Union Pacific Resources Company | Washington | Goodrich, Levi #2H47730681 | 15,000 |
| 386101Amendment | Mar 25, 1991 | Mar 25, 1991 | Union Pacific Resources Company | Washington | Goodrich, Levi #2H47730681 | 13,219 |
| 386031 | Mar 22, 1991 | Mar 22, 1991 | Union Pacific Resources Company | Nueces | Wardner, G.P. #6535505310 | 7,400 |
| 385786 | Mar 15, 1991 | Mar 15, 1991 | Union Pacific Resources Company | Burleson | Barton-Lightsey Unit #1H05133216 | 12,000 |
| 385786Amendment | Mar 15, 1991 | Mar 15, 1991 | Union Pacific Resources Company | Burleson | Barton-Lightsey Unit #1H05133216 | 12,000 |
| 385786Amendment | Mar 15, 1991 | Mar 15, 1991 | Union Pacific Resources Company | Burleson | Barton-Lightsey Unit #1H05133216 | 10,730 |
| 385785 | Mar 15, 1991 | Mar 15, 1991 | Union Pacific Resources Company | Goliad | Swickheimer, Hattie Estate #117532594 | 6,500 |
| 385684 | Mar 14, 1991 | Mar 14, 1991 | Union Pacific Resources Company | Hidalgo | Beaurline, A.w.(m & S) #121530391 | 7,512 |
| 385486 | Mar 8, 1991 | Mar 8, 1991 | Union Pacific Resources Company | Gray | McLaughlin #1817930665 | 3,175 |
| 385329 | Mar 5, 1991 | Mar 5, 1991 | Union Pacific Resources Company | Panola | Cgu 11 #736532241 | 9,700 |
| 385325 | Mar 5, 1991 | Mar 5, 1991 | Union Pacific Resources Company | Burleson | Scamardo-Scamardo Unit #1H05133212 | 12,700 |
| 385325Amendment | Mar 5, 1991 | Mar 5, 1991 | Union Pacific Resources Company | Burleson | Scamardo-Scamardo Unit #1H05133212 | 12,700 |
| 385325Amendment | Mar 5, 1991 | Mar 5, 1991 | Union Pacific Resources Company | Burleson | M. Scamardo "B" #1H05133212 | 12,700 |
| 385315 | Mar 5, 1991 | Mar 5, 1991 | Union Pacific Resources Company | Burleson | Beran-Dworsky Unit #2H05133211 | 11,800 |
| 385308 | Mar 4, 1991 | Mar 4, 1991 | Union Pacific Resources Company | Brazos | Jones, Eugenia et Al #1H04131489 | 15,200 |
| 385308Amendment | Mar 4, 1991 | Mar 4, 1991 | Union Pacific Resources Company | Brazos | Jones, Eugenia et Al #1H04131489 | 12,670 |
| 384374 | Mar 1, 1991 | Mar 1, 1991 | Union Pacific Resources Company | Brazos | Jayhawk Unit #1H04131488 | 11,500 |
| 384912 | Feb 20, 1991 | Feb 20, 1991 | Union Pacific Resources Company | Gonzales | Dubose, Blaxton #2H17731880 | 14,200 |
| 384912Amendment | Feb 20, 1991 | Feb 20, 1991 | Union Pacific Resources Company | Gonzales | Dubose, Blaxton #2H17731880 | 12,388 |
| 384811 | Feb 19, 1991 | Feb 19, 1991 | Union Pacific Resources Company | Nueces | Wendel Gas Unit #135532795 | 7,200 |
| 384662 | Feb 14, 1991 | Feb 14, 1991 | Union Pacific Resources Company | Panola | Nevada Alexander et al Unit #220536532183 | 10,050 |
| 384662Amendment | Feb 14, 1991 | Feb 14, 1991 | Union Pacific Resources Company | Panola | Cgu 22 #536532183 | 10,050 |
| 384661 | Feb 14, 1991 | Feb 14, 1991 | Union Pacific Resources Company | Nueces | Elliff, J. S. et Al #2335532425 | 7,506 |
| 384660 | Feb 14, 1991 | Feb 14, 1991 | Union Pacific Resources Company | San Patricio | Welder Ranch #1240920057 | 5,700 |
| 384659 | Feb 14, 1991 | Feb 14, 1991 | Union Pacific Resources Company | Nueces | Anderson, William Jr. et Al #135532815 | 8,200 |
| 384620 | Feb 13, 1991 | Feb 13, 1991 | Union Pacific Resources Company | Washington | Loving-Kruse Unit #1H47730680 | 15,200 |
| 384620Amendment | Feb 13, 1991 | Feb 13, 1991 | Union Pacific Resources Company | Washington | Lovings-Kruse Unit #1H47730680 | 15,200 |
| 384618 | Feb 13, 1991 | Feb 13, 1991 | Union Pacific Resources Company | Burleson | Knesek-Marek Unit #1H05133201 | 13,300 |
| 384578 | Feb 12, 1991 | Feb 12, 1991 | Union Pacific Resources Company | Starr | Guerra, F. B. Estate -B- #942732260 | 8,015 |
| 384577 | Feb 12, 1991 | Feb 12, 1991 | Union Pacific Resources Company | Panola | L. T. Poss Unit #436532439 | 9,950 |
| 384434 | Feb 8, 1991 | Feb 8, 1991 | Union Pacific Resources Company | Fayette | Schubert-Hemplle Unit #1H14932444 | 13,500 |