| 498758 | Aug 23, 2000 | Aug 23, 2000 | Union Pacific Resources Company | Milam | Grey Wolf Unit #1H | 6,350 | 33133525 |
| 498539 | Aug 23, 2000 | Aug 23, 2000 | Union Pacific Resources Company | Crockett | Couch 21 #13 | 7,400 | 10538412 |
| 498538 | Aug 23, 2000 | Aug 23, 2000 | Union Pacific Resources Company | Crockett | Couch 21 #15 | 7,400 | 10538411 |
| 498474 | Aug 18, 2000 | Aug 18, 2000 | Union Pacific Resources Company | Crockett | Couch "E" 30 #17 | 7,300 | 10538410 |
| 498552 | Aug 17, 2000 | Aug 17, 2000 | Union Pacific Resources Company | Crockett | Couch 29 #11 | 7,300 | 10538413 |
| 498423 | Aug 14, 2000 | Aug 14, 2000 | Union Pacific Resources Company | Burleson | Lightsey-Loehr #1REH | 7,400 | 05133061 |
| 498360 | Aug 11, 2000 | Aug 11, 2000 | Union Pacific Resources Company | Burleson | Kuttler-Kuttler Unit #1HH | 14,000 | 05133305 |
| 497983 | Aug 10, 2000 | Aug 10, 2000 | Union Pacific Resources Company | Rusk | Sheppard, Bailey #16 | 11,500 | 40133020 |
| 497982 | Aug 10, 2000 | Aug 10, 2000 | Union Pacific Resources Company | Rusk | Sheppard, Bailey #17 | 11,500 | 40133021 |
| 497767 | Jul 29, 2000 | Jul 29, 2000 | Union Pacific Resources Company | Milam | Grey Reef Unit #1 | 16,500 | 33133522 |
| 497766 | Jul 28, 2000 | Jul 28, 2000 | Union Pacific Resources Company | Colorado | Sandy Creek Unit #1H | 16,000 | 08932235 |
| 497766Amendment | Jul 28, 2000 | Jul 28, 2000 | Union Pacific Resources Company | Colorado | Sandy Creek #1H | 16,000 | 08932235 |
| 497453 | Jul 21, 2000 | Jul 21, 2000 | Union Pacific Resources Company | Burleson | Badger #1REH | 15,000 | 05133138 |
| 497403 | Jul 20, 2000 | Jul 20, 2000 | Union Pacific Resources Company | Madison | Porterhouse Unit A-255 #1H | 12,100 | 31330767 |
| 497403Amendment | Jul 20, 2000 | Jul 20, 2000 | Union Pacific Resources Company | Madison | Porterhouse Unit A-255 #1H | 12,100 | 31330767 |
| 497305 | Jul 18, 2000 | Jul 18, 2000 | Union Pacific Resources Company | Brazos | Bush-Stasny Unit #1REH | 15,000 | 04131553 |
| 497244 | Jul 17, 2000 | Jul 17, 2000 | Union Pacific Resources Company | Brazos | Moehlman RE Unit #1H | 8,210 | 04131221 |
| 497047 | Jul 12, 2000 | Jul 12, 2000 | Union Pacific Resources Company | Nacogdoches | Sandbar #1 | 15,000 | 34731674 |
| 497047Amendment | Jul 12, 2000 | Jul 12, 2000 | Union Pacific Resources Company | Nacogdoches | Sandbar #1 | 16,000 | 34731674 |
| 495851 | Jul 7, 2000 | Jul 7, 2000 | Union Pacific Resources Company | Panola | Cgu 16 #12 | 11,000 | 36534406 |
| 496901 | Jul 6, 2000 | Jul 6, 2000 | Union Pacific Resources Company | Robertson | Jax Unit #1H | 7,700 | 39530543 |
| 496900 | Jul 6, 2000 | Jul 6, 2000 | Union Pacific Resources Company | Fayette | Froese Unit #1REH | 14,000 | 14931248 |
| 496237 | Jul 6, 2000 | Jul 6, 2000 | Union Pacific Resources Company | Crockett | McMullan 2 #10 | 9,500 | 10538383 |
| 496237Amendment | Jul 6, 2000 | Jul 6, 2000 | Union Pacific Resources Company | Crockett | McMullan 2 #10 | 9,500 | 10538383 |
| 495799 | Jul 6, 2000 | Jul 6, 2000 | Union Pacific Resources Company | Gregg | Buford #4 | 11,000 | 18331410 |
| 495878 | Jul 5, 2000 | Jul 5, 2000 | Union Pacific Resources Company | Panola | Cgu 27 #9C | 9,917 | 36532974 |
| 496738 | Jun 30, 2000 | Jun 30, 2000 | Union Pacific Resources Company | Lee | Hoffman, Vernon #1REH | 14,000 | 28731544 |
| 496527 | Jun 27, 2000 | Jun 27, 2000 | Union Pacific Resources Company | Rusk | Price Oil Unit #4 | 10,930 | 40132190 |
| 496477 | Jun 27, 2000 | Jun 27, 2000 | Union Pacific Resources Company | Rusk | Price Oil Unit #5 | 7,617 | 40132271 |
| 496343 | Jun 22, 2000 | Jun 22, 2000 | Union Pacific Resources Company | Panola | A. W. Harrison Oil Unit #1008C | 9,660 | 36532689 |
| 496345 | Jun 20, 2000 | Jun 20, 2000 | Union Pacific Resources Company | Brazos | Guest-Yager Unit #1REH | 16,500 | 04131704 |
| 495948 | Jun 20, 2000 | Jun 20, 2000 | Union Pacific Resources Company | Crockett | McMullan P-2 #8 | 9,500 | 10538381 |
| 495947 | Jun 20, 2000 | Jun 20, 2000 | Union Pacific Resources Company | Crockett | McMullan P-2 #4 | 8,600 | 10538380 |
| 495946 | Jun 20, 2000 | Jun 20, 2000 | Union Pacific Resources Company | Crockett | McMullan P-2 #5 | 8,600 | 10538377 |
| 495945 | Jun 20, 2000 | Jun 20, 2000 | Union Pacific Resources Company | Crockett | McMullan P-2 #7 | 9,500 | 10538379 |
| 495944 | Jun 20, 2000 | Jun 20, 2000 | Union Pacific Resources Company | Crockett | McMullan P-2 #6 | 8,600 | 10538378 |
| 496238 | Jun 16, 2000 | Jun 16, 2000 | Union Pacific Resources Company | Crockett | McMullan 6 #3 | 8,650 | 10536540 |
| 496055 | Jun 16, 2000 | Jun 16, 2000 | Union Pacific Resources Company | Rusk | Herman High #1 | 8,201 | 40130365 |
| 496146 | Jun 14, 2000 | Jun 14, 2000 | Union Pacific Resources Company | Jasper | N. Hilton Unit A-350 #1H | 12,700 | 24130673 |
| 495949 | Jun 8, 2000 | Jun 8, 2000 | Union Pacific Resources Company | Burleson | Porter, J. Holland #1REH | 14,000 | 05133139 |
| 495802 | Jun 5, 2000 | Jun 5, 2000 | Union Pacific Resources Company | Austin | R. A. Coward Unit #1H | 16,000 | 01530754 |
| 494893 | Jun 5, 2000 | Jun 5, 2000 | Union Pacific Resources Company | Crockett | McMullan '2' #9 | 9,500 | 10538368 |
| 495666 | May 31, 2000 | May 31, 2000 | Union Pacific Resources Company | Milam | Tiger Unit #1 | 15,600 | 33133521 |
| 495255 | May 19, 2000 | May 19, 2000 | Union Pacific Resources Company | Brazos | Bukowski-Bienski Unit #1REH | 14,000 | 04131550 |
| 495092 | May 19, 2000 | May 19, 2000 | Union Pacific Resources Company | Crockett | Meybin "C" #3409 | 8,700 | 10538371 |
| 495197 | May 18, 2000 | May 18, 2000 | Union Pacific Resources Company | Robertson | Pruitt Unit #1H | 5,700 | 39530607 |
| 495197Amendment | May 18, 2000 | May 18, 2000 | Union Pacific Resources Company | Robertson | Pruitt Unit #1H | 5,700 | 39530607 |
| 495184 | May 18, 2000 | May 18, 2000 | Union Pacific Resources Company | Newton | L. Fortensky Unit A-1104 #1H | 11,700 | 35130702 |
| 495091 | May 18, 2000 | May 18, 2000 | Union Pacific Resources Company | Crockett | Meybin "C" #3408 | 8,700 | 10538370 |
| 495094 | May 16, 2000 | May 16, 2000 | Union Pacific Resources Company | Washington | Becker Unit #1REH | 14,000 | 47730743 |
| 495093 | May 16, 2000 | May 16, 2000 | Union Pacific Resources Company | Brazos | Jones-Miller Unit #1H | 15,000 | 04131925 |
| 495093Amendment | May 16, 2000 | May 16, 2000 | Union Pacific Resources Company | Brazos | Jones-Miller Unit #1H | 15,000 | 04131925 |
| 494892 | May 15, 2000 | May 15, 2000 | Union Pacific Resources Company | Crockett | Scheuber #8 | 8,600 | 10538367 |
| 494944 | May 11, 2000 | May 11, 2000 | Union Pacific Resources Company | Burleson | Bush-Bush Unit #1REH | 14,000 | 05133320 |
| 494699 | May 10, 2000 | May 10, 2000 | Union Pacific Resources Company | Crockett | McMullan 'B' #7 | 8,400 | 10538365 |
| 491476 | May 10, 2000 | May 10, 2000 | Union Pacific Resources Company | Panola | Lashley, M. Gas Unit #9 | 10,000 | 36534328 |
| 494196 | May 8, 2000 | May 8, 2000 | Union Pacific Resources Company | Crockett | Scheuber 'B' #9 | 8,500 | 10538359 |
| 494700 | May 4, 2000 | May 4, 2000 | Union Pacific Resources Company | Fayette | Marian #1REH | 14,000 | 14932072 |
| 494535 | May 4, 2000 | May 4, 2000 | Union Pacific Resources Company | Crockett | Perry '21' #14 | 8,500 | 10538364 |
| 494629 | May 2, 2000 | May 2, 2000 | Union Pacific Resources Company | Fayette | Elo #1REH | 14,000 | 14931781 |
| 494195 | May 2, 2000 | May 2, 2000 | Union Pacific Resources Company | Crockett | Perry G. U. '21' #15 | 8,500 | 10538360 |
| 493327 | Apr 26, 2000 | Apr 26, 2000 | Union Pacific Resources Company | Rusk | Major Kennedy Estate Gas Unit #8 | 12,000 | 40132992 |
| 494422 | Apr 25, 2000 | Apr 25, 2000 | Union Pacific Resources Company | Wood | Whitetip Unit #1 | 17,800 | 49931947 |
| 494357 | Apr 24, 2000 | Apr 24, 2000 | Union Pacific Resources Company | Lee | Barbara Ann Unit #1 | 12,000 | 28732505 |
| 493324 | Apr 24, 2000 | Apr 24, 2000 | Union Pacific Resources Company | Panola | Cgu 28 #11 | 11,000 | 36534361 |
| 494194 | Apr 18, 2000 | Apr 18, 2000 | Union Pacific Resources Company | Lee | Mantzel #1REH | 14,000 | 28730583 |
| 491720 | Apr 17, 2000 | Apr 17, 2000 | Union Pacific Resources Company | Panola | Cottle-Reeves Unit #2 | 2,500 | 36534335 |
| 494085 | Apr 14, 2000 | Apr 14, 2000 | Union Pacific Resources Company | Burleson | Knox #2REH | 14,500 | 05132825 |
| 494084 | Apr 14, 2000 | Apr 14, 2000 | Union Pacific Resources Company | Burleson | Lightsey-Trcalek Unit #1H | 8,000 | 05133582 |
| 494032 | Apr 13, 2000 | Apr 13, 2000 | Union Pacific Resources Company | Burleson | Lightsey, Walter #2REH | 10,000 | 05133023 |
| 494031 | Apr 13, 2000 | Apr 13, 2000 | Union Pacific Resources Company | Brazos | Milam Unit #1REH | 9,000 | 04130868 |
| 492800 | Apr 13, 2000 | Apr 13, 2000 | Union Pacific Resources Company | Jasper | Angelina Unit A-19 #1H | 12,500 | 24130670 |
| 493837 | Apr 7, 2000 | Apr 7, 2000 | Union Pacific Resources Company | Milam | Big Eye Unit #1 | 14,700 | 33133519 |
| 493806 | Apr 6, 2000 | Apr 6, 2000 | Union Pacific Resources Company | Crockett | Henderson P-1 #4 | 9,500 | 10538350 |
| 493805 | Apr 6, 2000 | Apr 6, 2000 | Union Pacific Resources Company | Crockett | Henderson P-1 #5 | 9,500 | 10538351 |
| 493804 | Apr 6, 2000 | Apr 6, 2000 | Union Pacific Resources Company | Crockett | Henderson P-1 #6 | 9,500 | 10538352 |
| 493804Amendment | Apr 6, 2000 | Apr 6, 2000 | Union Pacific Resources Company | Crockett | Henderson P-1 #6 | 9,500 | 10538352 |
| 492337 | Apr 6, 2000 | Apr 6, 2000 | Union Pacific Resources Company | Panola | Williams-Wall Unit #5 | 9,490 | 36532636 |
| 492142 | Apr 4, 2000 | Apr 4, 2000 | Union Pacific Resources Company | Panola | Cgu 19 #13 | 11,000 | 36534348 |
| 493564 | Mar 29, 2000 | Mar 29, 2000 | Union Pacific Resources Company | Burleson | Loehr Unit #3H | 14,000 | 05133581 |
| 492182 | Mar 28, 2000 | Mar 28, 2000 | Union Pacific Resources Company | Panola | Kyle, Fred "A" #7C | 9,470 | 36532671 |
| 492338 | Mar 22, 2000 | Mar 22, 2000 | Union Pacific Resources Company | Panola | Marshall, Homer #2 | 11,000 | 36534350 |
| 492141 | Mar 22, 2000 | Mar 22, 2000 | Union Pacific Resources Company | Panola | Cgu 26 #16 | 11,000 | 36534347 |
| 492140 | Mar 22, 2000 | Mar 22, 2000 | Union Pacific Resources Company | Panola | Cgu 11 #14 | 11,000 | 36534346 |
| 493210 | Mar 17, 2000 | Mar 17, 2000 | Union Pacific Resources Company | Fayette | Warmke Unit #1REH | 16,000 | 14932505 |
| 493086 | Mar 15, 2000 | Mar 15, 2000 | Union Pacific Resources Company | Crockett | Montgomery, C. C. 11 #16 #16 | 7,000 | 10538342 |
| 493018 | Mar 13, 2000 | Mar 13, 2000 | Union Pacific Resources Company | Crockett | Montgomery, C. C. 8D #7 | 7,000 | 10538341 |
| 493017 | Mar 13, 2000 | Mar 13, 2000 | Union Pacific Resources Company | Crockett | Montgomery, C. C. 7 #7 | 7,000 | 10538340 |
| 492942 | Mar 10, 2000 | Mar 10, 2000 | Union Pacific Resources Company | Burleson | Loehr, A. #1HH | 7,484 | 05131076 |
| 492941 | Mar 10, 2000 | Mar 10, 2000 | Union Pacific Resources Company | Washington | Ehrlund Unit #1H | 20,000 | 47730879 |
| 492813 | Mar 7, 2000 | Mar 7, 2000 | Union Pacific Resources Company | Lee | Brown Unit #1 | 10,000 | 28731222 |
| 492650 | Mar 2, 2000 | Mar 2, 2000 | Union Pacific Resources Company | Fayette | NW Oldenburg Amarado Unit #1REH | 15,000 | 14932808 |
| 492649 | Mar 2, 2000 | Mar 2, 2000 | Union Pacific Resources Company | Rusk | Ballow Gas Unit #5 | 11,800 | 40132987 |
| 492183 | Mar 1, 2000 | Mar 1, 2000 | Union Pacific Resources Company | Panola | Cgu 14 #13 | 11,000 | 36534349 |
| 492537 | Feb 29, 2000 | Feb 29, 2000 | Union Pacific Resources Company | Robertson | Kodiak Unit #1H | 7,500 | 39530602 |
| 491477 | Feb 29, 2000 | Feb 29, 2000 | Union Pacific Resources Company | Panola | Cgu 20 #14 | 11,000 | 36534327 |
| 492408 | Feb 28, 2000 | Feb 28, 2000 | Union Pacific Resources Company | Panola | Cgu 29 #6C | 9,940 | 36532792 |
| 491523 | Feb 28, 2000 | Feb 28, 2000 | Union Pacific Resources Company | Panola | Cgu 16 #11 | 11,000 | 36534333 |
| 491522 | Feb 28, 2000 | Feb 28, 2000 | Union Pacific Resources Company | Panola | Cgu 6 #13 | 11,000 | 36534332 |
| 491389 | Feb 28, 2000 | Feb 28, 2000 | Union Pacific Resources Company | Panola | Markey Gas Unit #10 | 10,000 | 36534321 |