| 466621 | Aug 26, 1997 | Aug 26, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Brumble-Studdard #4 | 9,900 | 36533751 |
| 465524 | Aug 13, 1997 | Aug 13, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hudson-Johnson Unit #12 | 9,650 | 36533734 |
| 465890 | Aug 6, 1997 | Aug 6, 1997 | Pennzoil Exploration & Prod. Co. | Nueces | Elliff, Mabel #A 13 | 1,500 | 35533096 |
| 465671 | Aug 5, 1997 | Aug 5, 1997 | Pennzoil Exploration & Prod. Co. | Terry | Mallet Land & Cattle Co. #110 | 8,900 | 44531829 |
| 465399 | Jul 25, 1997 | Jul 25, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 43 | 9,665 | 36532077 |
| 465116 | Jul 25, 1997 | Jul 25, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hall Unit #8 | 9,650 | 36533731 |
| 464096 | Jul 24, 1997 | Jul 24, 1997 | Pennzoil Exploration & Prod. Co. | Terry | Mallet Land & Cattle Co. #108 | 5,200 | 44531828 |
| 464027 | Jul 24, 1997 | Jul 24, 1997 | Pennzoil Exploration & Prod. Co. | Victoria | Womack, J. Y. #6 | 4,300 | 46933234 |
| 464983 | Jul 21, 1997 | Jul 21, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Dunlap Unit #7 | 9,450 | 36533728 |
| 464983Amendment | Jul 21, 1997 | Jul 21, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Dunlap Unit #7 | 9,450 | 36533728 |
| 464080 | Jul 17, 1997 | Jul 17, 1997 | Pennzoil Exploration & Prod. Co. | Terry | Mallet Land & Cattle Co. #109 | 5,200 | 44531827 |
| 464845 | Jul 15, 1997 | Jul 15, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull a-16 Unit #A 16 | 6,850 | 36530673 |
| 464644 | Jul 15, 1997 | Jul 15, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Shaw Unit #11 | 9,650 | 36533716 |
| 464634 | Jul 15, 1997 | Jul 15, 1997 | Pennzoil Exploration & Prod. Co. | Crane | C-Bar San Andres Unit #F 2W | 3,595 | 10300726 |
| 463627 | Jul 10, 1997 | Jul 10, 1997 | Pennzoil Exploration & Prod. Co. | Crane | Lea, P. J. Etal #114 | 4,750 | 10332831 |
| 463626 | Jul 10, 1997 | Jul 10, 1997 | Pennzoil Exploration & Prod. Co. | Crane | Lea, P. J. Etal #135 | 4,800 | 10332951 |
| 464584 | Jul 9, 1997 | Jul 9, 1997 | Pennzoil Exploration & Prod. Co. | Crane | McKnight, M. B. #102 | 6,171 | 10310647 |
| 464451 | Jul 1, 1997 | Jul 1, 1997 | Pennzoil Exploration & Prod. Co. | Zapata | Jennings #35F | 7,500 | 50530993 |
| 464428 | Jul 1, 1997 | Jul 1, 1997 | Pennzoil Exploration & Prod. Co. | Crane | Lea, P.J., Etal #11 | 8,110 | 10300228 |
| 464325 | Jun 30, 1997 | Jun 30, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 64 | 9,650 | 36533712 |
| 463622 | Jun 16, 1997 | Jun 16, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Cavin Unit #6 | 7,012 | 36532885 |
| 463617 | Jun 16, 1997 | Jun 16, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Cavin Unit #7 | 7,875 | 36532933 |
| 463625 | Jun 12, 1997 | Jun 12, 1997 | Pennzoil Exploration & Prod. Co. | Scurry | Sacroc Unit #118-22 | 7,200 | 41533595 |
| 463624 | Jun 12, 1997 | Jun 12, 1997 | Pennzoil Exploration & Prod. Co. | Scurry | Sacroc Unit #118-23 | 7,200 | 41533594 |
| 463333 | Jun 6, 1997 | Jun 6, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Chadwick Gas Unit - McLendon #5 | 9,450 | 36533694 |
| 463294 | Jun 6, 1997 | Jun 6, 1997 | Pennzoil Exploration & Prod. Co. | Terry | Mallet Land & Cattle Co. #107 | 8,200 | 44531823 |
| 463177 | Jun 2, 1997 | Jun 2, 1997 | Pennzoil Exploration & Prod. Co. | Zapata | Jennings #39D | 7,800 | 50531149 |
| 462711 | May 22, 1997 | May 22, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 49 | 7,006 | 36532372 |
| 462315 | May 19, 1997 | May 19, 1997 | Pennzoil Exploration & Prod. Co. | Crane | C-Bar San Andres Unit #I 5 | 3,700 | 10300741 |
| 462314 | May 19, 1997 | May 19, 1997 | Pennzoil Exploration & Prod. Co. | Crane | C-Bar San Andres Unit #I 6 | 3,700 | 10300742 |
| 462430 | May 16, 1997 | May 16, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 23 | 9,617 | 36531334 |
| 462430Amendment | May 16, 1997 | May 16, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 23 | 9,617 | 36531334 |
| 462429 | May 16, 1997 | May 16, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 31 | 9,728 | 36532084 |
| 462164 | May 15, 1997 | May 15, 1997 | Pennzoil Exploration & Prod. Co. | Crane | Henderson, M. F. #104 | 3,700 | 10300205 |
| 462163 | May 15, 1997 | May 15, 1997 | Pennzoil Exploration & Prod. Co. | Crane | Henderson, M. F. #99 | 3,700 | 10300181 |
| 462162 | May 15, 1997 | May 15, 1997 | Pennzoil Exploration & Prod. Co. | Crane | Henderson, M. F. #95 | 3,700 | 10300166 |
| 462138 | May 8, 1997 | May 8, 1997 | Pennzoil Exploration & Prod. Co. | Zapata | Trevino, Albert #B 5 | 11,200 | 50532807 |
| 460424 | Apr 28, 1997 | Apr 28, 1997 | Pennzoil Exploration & Prod. Co. | Crane | McKnight-Croley #1 | 6,030 | 10302593 |
| 461539 | Apr 23, 1997 | Apr 23, 1997 | Pennzoil Exploration & Prod. Co. | Zapata | Jennings #39F | 7,800 | 50531149 |
| 460511 | Apr 2, 1997 | Apr 2, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 69 | 9,650 | 36533648 |
| 460510 | Apr 2, 1997 | Apr 2, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 65 | 9,650 | 36533649 |
| 460532 | Apr 1, 1997 | Apr 1, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 35 | 9,200 | 36532016 |
| 459833 | Mar 13, 1997 | Mar 13, 1997 | Pennzoil Exploration & Prod. Co. | Zapata | Garza, Lauro #E6 X | 11,800 | 50533048 |
| 459397 | Mar 11, 1997 | Mar 11, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Brumble Unit #2 | 9,080 | 36530120 |
| 458301 | Mar 7, 1997 | Mar 7, 1997 | Pennzoil Exploration & Prod. Co. | Crane | Lea, P. J. Etal #220 | 8,050 | 10333511 |
| 459398 | Mar 6, 1997 | Mar 6, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Wilson Unit #8 | 9,650 | 36533620 |
| 459453 | Mar 5, 1997 | Mar 5, 1997 | Pennzoil Exploration & Prod. Co. | Refugio | Lambert, M.F. #B 2D | 5,900 | 39132081 |
| 459451 | Mar 5, 1997 | Mar 5, 1997 | Pennzoil Exploration & Prod. Co. | Refugio | Fox, W.J. #A 44 | 5,800 | 39131223 |
| 459370 | Mar 4, 1997 | Mar 4, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Steele, Corrie #A 5 | 8,000 | 36532441 |
| 459062 | Feb 28, 1997 | Feb 28, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Owens Unit #10 | 9,350 | 36533617 |
| 459061 | Feb 28, 1997 | Feb 28, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hancock Unit #8 | 9,450 | 36533616 |
| 459052 | Feb 25, 1997 | Feb 25, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Steele, Corrie #A 6 | 6,895 | 36532853 |
| 458814 | Feb 24, 1997 | Feb 24, 1997 | Pennzoil Exploration & Prod. Co. | Crane | Texas Consolidated #1 #H 16H | 9,700 | 10334486 |
| 458813 | Feb 24, 1997 | Feb 24, 1997 | Pennzoil Exploration & Prod. Co. | Crane | Texas Consolidated #1 #H 17H | 9,700 | 10334487 |
| 458837 | Feb 19, 1997 | Feb 19, 1997 | Pennzoil Exploration & Prod. Co. | Crane | Texas "HH" #1 | 10,550 | 10302558 |
| 458836 | Feb 19, 1997 | Feb 19, 1997 | Pennzoil Exploration & Prod. Co. | Winkler | Baird, W. E. #1345 | 2,850 | 49505130 |
| 457585 | Feb 19, 1997 | Feb 19, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 55 | 7,000 | 36532402 |
| 457997 | Feb 5, 1997 | Feb 5, 1997 | Pennzoil Exploration & Prod. Co. | Winkler | Baird, W. E. #1379 | 5,100 | 49531298 |
| 458146 | Feb 4, 1997 | Feb 4, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Dennard Unit #8 | 9,650 | 36533602 |
| 458143 | Feb 4, 1997 | Feb 4, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Dennard Unit #9 | 9,650 | 36533601 |
| 455982 | Feb 3, 1997 | Feb 3, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Chadwick Gas Unit - McLendon #4 | 9,450 | 36533553 |
| 457823 | Jan 24, 1997 | Jan 24, 1997 | Pennzoil Exploration & Prod. Co. | Bee | N.P.U. Ray #96 | 6,950 | 02532804 |
| 457822 | Jan 24, 1997 | Jan 24, 1997 | Pennzoil Exploration & Prod. Co. | Bee | N.P.U. Ray #95 | 6,950 | 02532803 |
| 457821 | Jan 24, 1997 | Jan 24, 1997 | Pennzoil Exploration & Prod. Co. | Bee | N.P.U. Ray #94 | 7,000 | 02532805 |
| 457580 | Jan 23, 1997 | Jan 23, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Chadwick Unit #12F | 8,235 | 36533011 |
| 457398 | Jan 21, 1997 | Jan 21, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Woolworth Gas Unit #4 | 9,450 | 36533580 |
| 457397 | Jan 16, 1997 | Jan 16, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 67 | 9,650 | 36533579 |
| 457396 | Jan 16, 1997 | Jan 16, 1997 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 62 | 9,650 | 36533578 |
| 456646 | Dec 31, 1996 | Dec 31, 1996 | Pennzoil Exploration & Prod. Co. | Scurry | Sacroc Unit #11-11A | 7,200 | 41533524 |
| 456385 | Dec 23, 1996 | Dec 23, 1996 | Pennzoil Exploration & Prod. Co. | Andrews | State -BN- #2 | 9,300 | 00301764 |
| 456165 | Dec 23, 1996 | Dec 23, 1996 | Pennzoil Exploration & Prod. Co. | Crane | Henderson, M. F. #176 | 11,000 | 10334310 |
| 456384 | Dec 18, 1996 | Dec 18, 1996 | Pennzoil Exploration & Prod. Co. | Winkler | Baird, W. E. #1934 | 10,640 | 49505101 |
| 456383 | Dec 18, 1996 | Dec 18, 1996 | Pennzoil Exploration & Prod. Co. | Crane | McKnight, M. B. #70 | 3,575 | 10300039 |
| 456208 | Dec 13, 1996 | Dec 13, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Hull a-21 Unit #A 63 | 9,650 | 36533564 |
| 454398 | Dec 13, 1996 | Dec 13, 1996 | Pennzoil Exploration & Prod. Co. | Refugio | Lambert, M. F "H" #H109 | 5,800 | 39131263 |
| 456082 | Dec 11, 1996 | Dec 11, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Hull a-21 Unit #A 70 | 9,650 | 36533560 |
| 455997 | Dec 9, 1996 | Dec 9, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Woolworth Gas Unit #3 | 9,450 | 36533554 |
| 455571 | Dec 3, 1996 | Dec 3, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Hull Unit A #A 68 | 9,650 | 36533546 |
| 455343 | Nov 20, 1996 | Nov 20, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Chadwick Gas Unit - McLendon #3 | 9,450 | 36533542 |
| 455342 | Nov 20, 1996 | Nov 20, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Wilson Unit #7 | 9,650 | 36533541 |
| 455285 | Nov 19, 1996 | Nov 19, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Capps Gas Unit #5 | 9,450 | 36533539 |
| 455284 | Nov 19, 1996 | Nov 19, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Capps Gas Unit #4 | 9,450 | 36533538 |
| 454891 | Nov 13, 1996 | Nov 13, 1996 | Pennzoil Exploration & Prod. Co. | Winkler | Vest Ranch #18 | 8,640 | 49531498 |
| 453721 | Nov 6, 1996 | Nov 6, 1996 | Pennzoil Exploration & Prod. Co. | Hockley | Hudgens, L.F. #20 | 5,200 | 21936294 |
| 453719 | Nov 6, 1996 | Nov 6, 1996 | Pennzoil Exploration & Prod. Co. | Hockley | Hudgens, L.F. #21 | 5,200 | 21936293 |
| 454493 | Nov 4, 1996 | Nov 4, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Werner, Louis Sawmill Co. #L 4A | 3,870 | 36500871 |
| 453724 | Nov 1, 1996 | Nov 1, 1996 | Pennzoil Exploration & Prod. Co. | Cochran | Duggan Slaughter Unit #0607N | 5,200 | 07932890 |
| 453723 | Nov 1, 1996 | Nov 1, 1996 | Pennzoil Exploration & Prod. Co. | Cochran | Duggan Slaughter Unit #1508N | 5,200 | 07932889 |
| 453722 | Nov 1, 1996 | Nov 1, 1996 | Pennzoil Exploration & Prod. Co. | Cochran | Duggan Slaughter Unit #1607N | 5,200 | 07932888 |
| 453720 | Oct 28, 1996 | Oct 28, 1996 | Pennzoil Exploration & Prod. Co. | Cochran | Duggan Slaughter Unit #2007N | 5,200 | 07932887 |
| 453510 | Oct 7, 1996 | Oct 7, 1996 | Pennzoil Exploration & Prod. Co. | Refugio | Lambert, M. F. #B 3 | 3,500 | 39132095 |
| 453173 | Oct 1, 1996 | Oct 1, 1996 | Pennzoil Exploration & Prod. Co. | Refugio | Lambert, M. F. #133 | 6,000 | 39132085 |
| 453173Amendment | Oct 1, 1996 | Oct 1, 1996 | Pennzoil Exploration & Prod. Co. | Refugio | Lambert, M. F. "H" #H133C | 6,010 | 39132085 |
| 453259 | Sep 30, 1996 | Sep 30, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Hancock Unit #6 | 9,350 | 36533511 |
| 452893 | Sep 30, 1996 | Sep 30, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Dunlap Unit #5 | 9,350 | 36533502 |
| 452668 | Sep 18, 1996 | Sep 18, 1996 | Pennzoil Exploration & Prod. Co. | Zapata | Gutierrez E. #A 1 | 10,500 | 50531400 |
| 452339 | Sep 17, 1996 | Sep 17, 1996 | Pennzoil Exploration & Prod. Co. | Karnes | N. P. U. Union Porter #1 | 6,850 | 25501130 |
| 451912 | Sep 4, 1996 | Sep 4, 1996 | Pennzoil Exploration & Prod. Co. | Winkler | Baird, W. E. #1334 | 10,642 | 49505136 |
| 451719 | Aug 22, 1996 | Aug 22, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Dunlap Unit #6 | 9,350 | 36533487 |
| 451719Amendment | Aug 22, 1996 | Aug 22, 1996 | Pennzoil Exploration & Prod. Co. | Panola | Dunlap Unit #6 | 9,350 | 36533487 |