| 472893 | Feb 3, 1998 | Feb 3, 1998 | Union Pacific Resources Company | Terrell | Hicks-State "8" #1R | 12,000 | 44330779 |
| 471445 | Feb 3, 1998 | Feb 3, 1998 | Union Pacific Resources Company | Panola | Cgu 24 #11 | 10,500 | 36533855 |
| 471318 | Feb 3, 1998 | Feb 3, 1998 | Union Pacific Resources Company | Panola | Cgu 25 #10 | 10,500 | 36533849 |
| 472844 | Feb 2, 1998 | Feb 2, 1998 | Union Pacific Resources Company | Milam | Night Hawk Unit #1H | 7,000 | 33133496 |
| 472844Amendment | Feb 2, 1998 | Feb 2, 1998 | Union Pacific Resources Company | Milam | Night Hawk Unit #1H | 7,000 | 33133496 |
| 472843 | Feb 2, 1998 | Feb 2, 1998 | Union Pacific Resources Company | Austin | Glaeser Unit #1H | 15,700 | 01530707 |
| 471699 | Feb 2, 1998 | Feb 2, 1998 | Union Pacific Resources Company | Rusk | Barksdale Estate Gas Unit #8 | 11,800 | 40132830 |
| 472755 | Jan 29, 1998 | Jan 29, 1998 | Union Pacific Resources Company | Dimmit | Fitzsimmons "A" #5701 | 4,000 | 12733149 |
| 472754 | Jan 29, 1998 | Jan 29, 1998 | Union Pacific Resources Company | Dimmit | Fitzsimmons "A" #4205 | 4,000 | 12733148 |
| 472753 | Jan 29, 1998 | Jan 29, 1998 | Union Pacific Resources Company | Dimmit | Fitzsimmons "A" #5706 | 4,000 | 12733150 |
| 472753Amendment | Jan 29, 1998 | Jan 29, 1998 | Union Pacific Resources Company | Dimmit | Fitzsimmons "A" #5706 | 4,000 | 12733150 |
| 472752 | Jan 29, 1998 | Jan 29, 1998 | Union Pacific Resources Company | Webb | Habenero Unit #1H | 11,500 | 47936865 |
| 472752Amendment | Jan 29, 1998 | Jan 29, 1998 | Union Pacific Resources Company | Webb | Habenero Unit #1H | 11,614 | 47936865 |
| 472751 | Jan 29, 1998 | Jan 29, 1998 | Union Pacific Resources Company | Milam | Mexia Unit #1H | 6,500 | 33133495 |
| 472751Amendment | Jan 29, 1998 | Jan 29, 1998 | Union Pacific Resources Company | Milam | Mexia Unit #1H | 6,500 | 33133495 |
| 472750 | Jan 29, 1998 | Jan 29, 1998 | Union Pacific Resources Company | Robertson | Big Horn Unit #1H | 7,000 | 39530557 |
| 472376 | Jan 29, 1998 | Jan 29, 1998 | Union Pacific Resources Company | Upton | McElroy Ranch Co. "L" #16 | 11,300 | 46133890 |
| 472658 | Jan 28, 1998 | Jan 28, 1998 | Union Pacific Resources Company | Jasper | Saul Unit A-33 #1H | 12,500 | 24130650 |
| 472658Amendment | Jan 28, 1998 | Jan 28, 1998 | Union Pacific Resources Company | Jasper | Saul Unit A-33 #1H | 12,500 | 24130650 |
| 472637 | Jan 28, 1998 | Jan 28, 1998 | Union Pacific Resources Company | Crockett | Henderson "25" #1HH | 10,000 | 10538012 |
| 472637Amendment | Jan 28, 1998 | Jan 28, 1998 | Union Pacific Resources Company | Crockett | Henderson "25" #1HH | 10,000 | 10538012 |
| 471511 | Jan 28, 1998 | Jan 28, 1998 | Union Pacific Resources Company | Crockett | Marshall Montgomery State G.U. #3 | 7,200 | 10537989 |
| 472698 | Jan 27, 1998 | Jan 27, 1998 | Union Pacific Resources Company | Dimmit | Fitzsimmons "A" #6113R | 4,000 | 12733147 |
| 472697 | Jan 27, 1998 | Jan 27, 1998 | Union Pacific Resources Company | Dimmit | Fitzsimons, Hugh A. et Al #4616 | 4,000 | 12733146 |
| 472696 | Jan 27, 1998 | Jan 27, 1998 | Union Pacific Resources Company | Dimmit | Fitzsimons, Hugh A. et Al #4615 | 4,000 | 12733145 |
| 472693 | Jan 27, 1998 | Jan 27, 1998 | Union Pacific Resources Company | Dimmit | Fitzsimons, Hugh A. et Al #4505 | 4,000 | 12733144 |
| 467255 | Jan 27, 1998 | Jan 27, 1998 | Union Pacific Resources Company | Crockett | Union Pacific #58 | 9,800 | 10537335 |
| 472437 | Jan 23, 1998 | Jan 23, 1998 | Union Pacific Resources Company | Panola | Cgu 31 #10 | 10,300 | 36533868 |
| 472373 | Jan 23, 1998 | Jan 23, 1998 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #46 | 7,400 | 10538001 |
| 472546 | Jan 22, 1998 | Jan 22, 1998 | Union Pacific Resources Company | Jasper | Angelina Upr Unit A-19 #1H | 12,500 | 24130670 |
| 472545 | Jan 22, 1998 | Jan 22, 1998 | Union Pacific Resources Company | Robertson | Whitetail Unit #1H | 6,500 | 39530538 |
| 472545Amendment | Jan 22, 1998 | Jan 22, 1998 | Union Pacific Resources Company | Robertson | Whitetail Unit #1H | 7,500 | 39530538 |
| 472384 | Jan 22, 1998 | Jan 22, 1998 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #48 | 7,400 | 10538000 |
| 472382 | Jan 22, 1998 | Jan 22, 1998 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #49 | 7,400 | 10538003 |
| 472379 | Jan 22, 1998 | Jan 22, 1998 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #47 | 7,400 | 10538002 |
| 472239 | Jan 22, 1998 | Jan 22, 1998 | Union Pacific Resources Company | Crockett | Montgomery "20" #4 | 10,200 | 10537998 |
| 472500 | Jan 21, 1998 | Jan 21, 1998 | Union Pacific Resources Company | Washington | Corn Unit #1H | 15,500 | 47730856 |
| 472399 | Jan 21, 1998 | Jan 21, 1998 | Union Pacific Resources Company | Panola | McDaniel, J. A. #3 | 9,400 | 36531662 |
| 471321 | Jan 21, 1998 | Jan 21, 1998 | Union Pacific Resources Company | Panola | Cgu 27 #11 | 10,500 | 36533848 |
| 471216 | Jan 21, 1998 | Jan 21, 1998 | Union Pacific Resources Company | Rusk | Rogers Estate Gas Unit #8 | 11,800 | 40132822 |
| 472319 | Jan 20, 1998 | Jan 20, 1998 | Union Pacific Resources Company | Lee | Red Snapper #1 | 12,500 | 28732497 |
| 472319Amendment | Jan 20, 1998 | Jan 20, 1998 | Union Pacific Resources Company | Lee | Red Snapper #1 | 12,000 | 28732497 |
| 472240 | Jan 16, 1998 | Jan 16, 1998 | Union Pacific Resources Company | Crockett | Montgomery, W. C. #50 | 7,200 | 10537997 |
| 471984 | Jan 15, 1998 | Jan 15, 1998 | Union Pacific Resources Company | Panola | Sallie J. Neal Unit #6 | 9,850 | 36532217 |
| 469864 | Jan 14, 1998 | Jan 14, 1998 | Union Pacific Resources Company | Crockett | Bean "26" #14 | 7,400 | 10537944 |
| 469864Amendment | Jan 14, 1998 | Jan 14, 1998 | Union Pacific Resources Company | Crockett | Bean "26" #14 | 7,400 | 10537944 |
| 469863 | Jan 14, 1998 | Jan 14, 1998 | Union Pacific Resources Company | Crockett | Bean "26" #15 | 7,400 | 10537943 |
| 469863Amendment | Jan 14, 1998 | Jan 14, 1998 | Union Pacific Resources Company | Crockett | Bean "26" #15 | 7,400 | 10537943 |
| 472056 | Jan 9, 1998 | Jan 9, 1998 | Union Pacific Resources Company | Terrell | Hicks-State "8" #1 | 12,000 | 44330775 |
| 471971 | Jan 8, 1998 | Jan 8, 1998 | Union Pacific Resources Company | Fayette | Angie Unit #1H | 11,500 | 14931834 |
| 471971Amendment | Jan 8, 1998 | Jan 8, 1998 | Union Pacific Resources Company | Fayette | Angie Unit #1H | 11,500 | 14931834 |
| 471966 | Jan 8, 1998 | Jan 8, 1998 | Union Pacific Resources Company | Zapata | Alexander #8 | 13,000 | 50533740 |
| 471732 | Jan 7, 1998 | Jan 7, 1998 | Union Pacific Resources Company | Rusk | Kangerga "a" Gas Unit #5 | 11,800 | 40132832 |
| 471700 | Jan 5, 1998 | Jan 5, 1998 | Union Pacific Resources Company | Rusk | Alice Christian Estate B Gas Ut. #8A | 11,800 | 40132831 |
| 471697 | Jan 5, 1998 | Jan 5, 1998 | Union Pacific Resources Company | Rusk | Leon Crim Estate Gas Unit #5 | 11,800 | 40132829 |
| 471510 | Jan 5, 1998 | Jan 5, 1998 | Union Pacific Resources Company | Rusk | Leon Crim Estate Gas Unit #4 | 11,800 | 40132827 |
| 471319 | Dec 31, 1997 | Dec 31, 1997 | Union Pacific Resources Company | Rusk | Thompson, Willie et al Gas Unit #8 | 11,800 | 40132823 |
| 470151 | Dec 31, 1997 | Dec 31, 1997 | Union Pacific Resources Company | Crockett | Ingham #2H | 7,000 | 10537951 |
| 471509 | Dec 30, 1997 | Dec 30, 1997 | Union Pacific Resources Company | Rusk | Leon Crim Estate Gas Unit #3 | 11,800 | 40132826 |
| 471440 | Dec 30, 1997 | Dec 30, 1997 | Union Pacific Resources Company | Terrell | University "36-3" #3 | 13,000 | 44330771 |
| 471439 | Dec 30, 1997 | Dec 30, 1997 | Union Pacific Resources Company | Crockett | Henderson "P-1" #3 | 10,000 | 10537988 |
| 471437 | Dec 30, 1997 | Dec 30, 1997 | Union Pacific Resources Company | Panola | Cgu 31 #9 | 10,300 | 36533856 |
| 471640 | Dec 29, 1997 | Dec 29, 1997 | Union Pacific Resources Company | Fayette | Esther #1REH | 9,500 | 14932232 |
| 471640Amendment | Dec 29, 1997 | Dec 29, 1997 | Union Pacific Resources Company | Fayette | Esther #1H | 9,500 | 14932232 |
| 471597 | Dec 23, 1997 | Dec 23, 1997 | Union Pacific Resources Company | Crockett | Couch "29-22" #2HH | 11,000 | 10537990 |
| 471597Amendment | Dec 23, 1997 | Dec 23, 1997 | Union Pacific Resources Company | Crockett | Couch "E" #2202HH | 11,000 | 10537990 |
| 471215 | Dec 23, 1997 | Dec 23, 1997 | Union Pacific Resources Company | Harrison | Letourneau GU 6 #7 | 10,900 | 20332492 |
| 471214 | Dec 23, 1997 | Dec 23, 1997 | Union Pacific Resources Company | Panola | Gary Gas Unit #5 | 10,300 | 36533846 |
| 471320 | Dec 22, 1997 | Dec 22, 1997 | Union Pacific Resources Company | Rusk | Thompson, Willie et al Gas Unit #7 | 11,800 | 40132824 |
| 471450 | Dec 19, 1997 | Dec 19, 1997 | Union Pacific Resources Company | Robertson | Rawah Unit #1H | 6,300 | 39530556 |
| 471449 | Dec 19, 1997 | Dec 19, 1997 | Union Pacific Resources Company | Leon | Ptarmigan Unit #1H | 7,000 | 28931282 |
| 471385 | Dec 18, 1997 | Dec 18, 1997 | Union Pacific Resources Company | Lee | Logan-Bagby Unit #1H | 10,000 | 28730489 |
| 471326 | Dec 17, 1997 | Dec 17, 1997 | Union Pacific Resources Company | Zapata | Guerra #5 | 9,200 | 50533733 |
| 471212 | Dec 17, 1997 | Dec 17, 1997 | Union Pacific Resources Company | Panola | Smith, Ella Unit 1 #8 | 10,300 | 36533847 |
| 471212Amendment | Dec 17, 1997 | Dec 17, 1997 | Union Pacific Resources Company | Panola | Smith, Ella Unit 1 #8 | 10,300 | 36533847 |
| 471269 | Dec 16, 1997 | Dec 16, 1997 | Union Pacific Resources Company | Milam | Andrews Unit #1H | 6,700 | 33133493 |
| 471213 | Dec 16, 1997 | Dec 16, 1997 | Union Pacific Resources Company | Burleson | Last Chance #1H | 18,600 | 05133568 |
| 470921 | Dec 16, 1997 | Dec 16, 1997 | Union Pacific Resources Company | Crockett | Kincaid #19 | 7,200 | 10537967 |
| 470084 | Dec 16, 1997 | Dec 16, 1997 | Union Pacific Resources Company | Crockett | Bean "26" #13 | 7,300 | 10537950 |
| 471196 | Dec 15, 1997 | Dec 15, 1997 | Union Pacific Resources Company | Bastrop | Maggie Unit #1H | 8,000 | 02131535 |
| 471196Amendment | Dec 15, 1997 | Dec 15, 1997 | Union Pacific Resources Company | Bastrop | Maggie Unit #1H | 8,000 | 02131535 |
| 471104 | Dec 15, 1997 | Dec 15, 1997 | Union Pacific Resources Company | Robertson | Upr/T-Bar-X Dauntless #1 | 17,800 | 39530555 |
| 471015 | Dec 12, 1997 | Dec 12, 1997 | Union Pacific Resources Company | Crockett | Montgomery, W. C. Gas Unit "D" #10 | 7,600 | 10537970 |
| 471014 | Dec 12, 1997 | Dec 12, 1997 | Union Pacific Resources Company | Terrell | University "36-6" #2 | 13,000 | 44330770 |
| 471013 | Dec 12, 1997 | Dec 12, 1997 | Union Pacific Resources Company | Terrell | University "36-2" #7 | 13,000 | 44330769 |
| 470716 | Dec 12, 1997 | Dec 12, 1997 | Union Pacific Resources Company | Panola | Cgu 11 #12 | 10,300 | 36533835 |
| 470089Amendment | Dec 12, 1997 | Dec 12, 1997 | Union Pacific Resources Company | Fayette | Schultz Unit #1H | 12,000 | 14933072 |
| 470089Amendment | Dec 12, 1997 | Dec 12, 1997 | Union Pacific Resources Company | Fayette | Schultz Unit #1H | 15,500 | 14933072 |
| 471109 | Dec 11, 1997 | Dec 11, 1997 | Union Pacific Resources Company | Robertson | Wapiti Unit #1H | 7,600 | 39530554 |
| 471004 | Dec 9, 1997 | Dec 9, 1997 | Union Pacific Resources Company | Jasper | Cooper Unit A-110 #1H | 13,000 | 24130647 |
| 471004Amendment | Dec 9, 1997 | Dec 9, 1997 | Union Pacific Resources Company | Jasper | Cooper Unit A-110 #1H | 13,000 | 24130647 |
| 471003 | Dec 9, 1997 | Dec 9, 1997 | Union Pacific Resources Company | Brazos | Schadenfreude Unit #1H | 14,800 | 04131914 |
| 471002 | Dec 9, 1997 | Dec 9, 1997 | Union Pacific Resources Company | Fayette | Warrenton-Arrow Unit #1H | 13,000 | 14933074 |
| 470721 | Dec 9, 1997 | Dec 9, 1997 | Union Pacific Resources Company | Panola | Cgu 6 #8C | 9,650 | 36532688 |
| 470504 | Dec 9, 1997 | Dec 9, 1997 | Union Pacific Resources Company | Rusk | Ballow Gas Unit #7 | 11,800 | 40132814 |
| 470502 | Dec 9, 1997 | Dec 9, 1997 | Union Pacific Resources Company | Rusk | Ballow Gas Unit #8 | 11,800 | 40132816 |
| 470377 | Dec 9, 1997 | Dec 9, 1997 | Union Pacific Resources Company | Rusk | Holt, J. W. Estate Gas Unit #8 | 11,800 | 40132812 |
| 470993 | Dec 8, 1997 | Dec 8, 1997 | Union Pacific Resources Company | Crockett | Hudspeth, L.M. Mem. Hospital "4" #1HH | 10,000 | 10537966 |
| 470850 | Dec 5, 1997 | Dec 5, 1997 | Union Pacific Resources Company | Lee | Kuehn-Carpenter Unit #1H | 8,800 | 28730332 |
| 470503 | Dec 5, 1997 | Dec 5, 1997 | Union Pacific Resources Company | Rusk | Ballow Gas Unit #5 | 11,800 | 40132815 |