| 517237 | Feb 1, 2002 | Feb 1, 2002 | Westport Oil and Gas Company Inc | Howard | McNallen, H. R. Clay #6 | 2,900 | 22732685 |
| 512229 | Aug 7, 2001 | Aug 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #28W | 3,400 | 22735738 |
| 512228 | Aug 7, 2001 | Aug 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #27W | 3,400 | 22735737 |
| 512227 | Aug 7, 2001 | Aug 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #26W | 3,400 | 22735736 |
| 512226 | Aug 7, 2001 | Aug 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #29W | 3,400 | 22735735 |
| 512225 | Aug 7, 2001 | Aug 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #32W | 3,400 | 22735734 |
| 512224 | Aug 7, 2001 | Aug 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #30W | 3,400 | 22735733 |
| 512223 | Aug 7, 2001 | Aug 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #31W | 3,400 | 22735732 |
| 510686 | Jul 3, 2001 | Jul 3, 2001 | Westport Oil and Gas Company Inc | Howard | Clay, H. R. -A- #49 | 3,226 | 22730960 |
| 509064 | Jul 3, 2001 | Jul 3, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #1416 | 3,490 | 22735071 |
| 509519 | Jun 8, 2001 | Jun 8, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #25W | 3,400 | 22735720 |
| 509522 | Jun 7, 2001 | Jun 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #23W | 3,400 | 22735718 |
| 509521 | Jun 7, 2001 | Jun 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #24W | 3,400 | 22735717 |
| 509518 | Jun 7, 2001 | Jun 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #20W | 3,400 | 22735716 |
| 509516 | Jun 7, 2001 | Jun 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #21W | 3,400 | 22735715 |
| 509515 | Jun 7, 2001 | Jun 7, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #22W | 3,400 | 22735714 |
| 508655 | Jun 6, 2001 | Jun 6, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #12 | 3,295 | 22730366 |
| 507450 | May 29, 2001 | May 29, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #34 | 2,700 | 22735699 |
| 507449 | May 29, 2001 | May 29, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #35 | 2,700 | 22735698 |
| 507447 | May 29, 2001 | May 29, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #38 | 2,700 | 22735696 |
| 507445 | May 29, 2001 | May 29, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #40 | 2,700 | 22735694 |
| 508988 | May 22, 2001 | May 22, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #13 | 3,800 | 22733267 |
| 508987 | May 22, 2001 | May 22, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #1315 | 3,800 | 22735070 |
| 507452 | Apr 23, 2001 | Apr 23, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #33 | 2,700 | 22735700 |
| 507448 | Apr 23, 2001 | Apr 23, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #36 | 2,700 | 22735697 |
| 507446 | Apr 23, 2001 | Apr 23, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #39 | 2,700 | 22735695 |
| 507103 | Apr 10, 2001 | Apr 10, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #1419 | 3,400 | 22735679 |
| 507102 | Apr 10, 2001 | Apr 10, 2001 | Westport Oil and Gas Company Inc | Howard | Chalk Otis #1418 | 3,400 | 22735678 |
| 507042 | Apr 4, 2001 | Apr 4, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #46W | 2,700 | 22735689 |
| 507042Amendment | Apr 4, 2001 | Apr 4, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #46W | 2,700 | 22735689 |
| 507041 | Apr 4, 2001 | Apr 4, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #47W | 2,700 | 22735688 |
| 507040 | Apr 4, 2001 | Apr 4, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #48W | 2,700 | 22735687 |
| 507040Amendment | Apr 4, 2001 | Apr 4, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #48 | 2,700 | 22735687 |
| 507047 | Apr 3, 2001 | Apr 3, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #41W | 2,700 | 22735685 |
| 507046 | Apr 3, 2001 | Apr 3, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #42W | 2,700 | 22735684 |
| 507046Amendment | Apr 3, 2001 | Apr 3, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #42W | 2,700 | 22735684 |
| 507045 | Apr 3, 2001 | Apr 3, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #43W | 2,700 | 22735683 |
| 507044 | Apr 3, 2001 | Apr 3, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #44W | 2,700 | 22735682 |
| 507043 | Apr 3, 2001 | Apr 3, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #45W | 2,700 | 22735681 |
| 507043Amendment | Apr 3, 2001 | Apr 3, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #45 | 2,700 | 22735681 |
| 507039 | Apr 3, 2001 | Apr 3, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #50W | 2,700 | 22735680 |
| 507039Amendment | Apr 3, 2001 | Apr 3, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #50 | 2,700 | 22735680 |
| 507054 | Apr 2, 2001 | Apr 2, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #37 | 2,700 | 22735686 |
| 506725 | Apr 2, 2001 | Apr 2, 2001 | Westport Oil and Gas Company Inc | Howard | Kloh #49W | 2,700 | 22735676 |
| 506726 | Mar 23, 2001 | Mar 23, 2001 | Westport Oil and Gas Company Inc | Glasscock | Phillips, Hart #14 | 2,700 | 17333059 |
| 506260 | Mar 14, 2001 | Mar 14, 2001 | Westport Oil and Gas Company Inc | Glasscock | Gilbreath #12 | 2,700 | 17333058 |
| 506259 | Mar 14, 2001 | Mar 14, 2001 | Westport Oil and Gas Company Inc | Glasscock | Gilbreath #11 | 2,700 | 17333057 |
| 506258 | Mar 14, 2001 | Mar 14, 2001 | Westport Oil and Gas Company Inc | Howard | McNallen, H. R. Clay #6 | 3,250 | 22732685 |
| 505744 | Mar 6, 2001 | Mar 6, 2001 | Westport Oil and Gas Company Inc | Howard | McNallen, H. R. Clay #10 | 3,350 | 22710154 |
| 500390 | Oct 11, 2000 | Oct 11, 2000 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #125 | 2,940 | 22731697 |
| 495648 | Aug 3, 2000 | Aug 3, 2000 | Westport Oil and Gas Company Inc | Howard | McNallen, H. R. Clay #12 | 3,350 | 22710155 |
| 496004 | Jun 12, 2000 | Jun 12, 2000 | Westport Oil and Gas Company Inc | Howard | Clay, H. R. #A 36 | 3,300 | 22720064 |
| 487315 | Oct 1, 1999 | Oct 1, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #129 | 3,400 | 22735090 |
| 487569 | Sep 24, 1999 | Sep 24, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #226 | 3,285 | 22735223 |
| 486908 | Sep 22, 1999 | Sep 22, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #211 | 3,076 | 22704311 |
| 486905 | Sep 22, 1999 | Sep 22, 1999 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #3 | 3,900 | 22704225 |
| 486907 | Sep 21, 1999 | Sep 21, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #102B | 2,972 | 22704399 |
| 486906 | Sep 21, 1999 | Sep 21, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #107 | 3,000 | 22703205 |
| 485939 | Jul 21, 1999 | Jul 21, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #131W | 3,000 | 22735350 |
| 485938 | Jul 21, 1999 | Jul 21, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #132W | 3,000 | 22735351 |
| 485989 | Jul 20, 1999 | Jul 20, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #133W | 3,000 | 22735355 |
| 485988 | Jul 20, 1999 | Jul 20, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #134W | 3,000 | 22735354 |
| 485987 | Jul 20, 1999 | Jul 20, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #135W | 3,000 | 22735353 |
| 485986 | Jul 20, 1999 | Jul 20, 1999 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #130W | 3,000 | 22735352 |
| 482338 | Mar 17, 1999 | Mar 17, 1999 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #14 | 3,400 | 22730373 |
| 481826 | Feb 1, 1999 | Feb 1, 1999 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #5 | 3,300 | 22704223 |
| 480663 | Nov 16, 1998 | Nov 16, 1998 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #5W | 3,300 | 22735321 |
| 475001 | May 21, 1998 | May 21, 1998 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #1315 | 3,800 | 22735070 |
| 474890 | May 21, 1998 | May 21, 1998 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #13 | 3,800 | 22733267 |
| 475002 | May 6, 1998 | May 6, 1998 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #212 | 3,000 | 22703157 |
| 474389 | Apr 1, 1998 | Apr 1, 1998 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #228 | 3,400 | 22735303 |
| 474359 | Apr 1, 1998 | Apr 1, 1998 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #231 | 3,400 | 22735304 |
| 474177 | Mar 19, 1998 | Mar 19, 1998 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #233 | 3,400 | 22735295 |
| 474176 | Mar 19, 1998 | Mar 19, 1998 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #235 | 3,400 | 22735296 |
| 474175 | Mar 19, 1998 | Mar 19, 1998 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #232 | 3,400 | 22735297 |
| 474174 | Mar 19, 1998 | Mar 19, 1998 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #234 | 3,400 | 22735298 |
| 471725 | Jan 5, 1998 | Jan 5, 1998 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #123 | 3,300 | 22731327 |
| 470708 | Dec 9, 1997 | Dec 9, 1997 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #126 | 3,158 | 22732204 |
| 470708Amendment | Dec 9, 1997 | Dec 9, 1997 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #126 | 3,158 | 22732204 |
| 468938 | Oct 22, 1997 | Oct 22, 1997 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #210 | 3,400 | 22700322 |
| 468810 | Oct 22, 1997 | Oct 22, 1997 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #230 | 3,400 | 22735260 |
| 468809 | Oct 21, 1997 | Oct 21, 1997 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #227 | 3,400 | 22735259 |
| 468808 | Oct 21, 1997 | Oct 21, 1997 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #229 | 3,400 | 22735258 |
| 463808 | Oct 20, 1997 | Oct 20, 1997 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #226 | 3,400 | 22735223 |
| 455577 | Dec 6, 1996 | Dec 6, 1996 | Westport Oil and Gas Company Inc | Howard | Roberts, Dora #129 | 3,400 | 22735090 |
| 452618 | Oct 22, 1996 | Oct 22, 1996 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #1317 | 3,200 | 22735072 |
| 452618Amendment | Oct 22, 1996 | Oct 22, 1996 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #1317 | 3,200 | 22735072 |
| 452616 | Oct 21, 1996 | Oct 21, 1996 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #1315 | 3,200 | 22735070 |
| 452616Amendment | Oct 21, 1996 | Oct 21, 1996 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #1315 | 3,800 | 22735070 |
| 452617 | Oct 16, 1996 | Oct 16, 1996 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #1416 | 3,800 | 22735071 |
| 452617Amendment | Oct 16, 1996 | Oct 16, 1996 | Westport Oil and Gas Company Inc | Howard | Chalk, Otis #1416 | 3,800 | 22735071 |