| 495605Amendment | May 30, 2000 | May 30, 2000 | Wheeler Operating Corporation | De Witt | Pevestorff, Edgar J. #2 | 9,500 | 12331884 |
| 494920 | May 10, 2000 | May 10, 2000 | Wheeler Operating Corporation | Garza | Post-Montgomery "B" #3W | 4,000 | 16933588 |
| 494290 | Apr 19, 2000 | Apr 19, 2000 | Wheeler Operating Corporation | Hockley | Pickard Estate #1 | 11,000 | 21936520 |
| 494290Amendment | Apr 19, 2000 | Apr 19, 2000 | Wheeler Operating Corporation | Hockley | Pickard Estate #1 | 11,000 | 21936520 |
| 494290Amendment | Apr 19, 2000 | Apr 19, 2000 | Wheeler Operating Corporation | Hockley | Pickard Estate #1 | 11,000 | 21936520 |
| 492793 | Mar 6, 2000 | Mar 6, 2000 | Wheeler Operating Corporation | Garza | Guthrie-Post Montgomery Co-OP #1 | 4,000 | 16933575 |
| 492793Amendment | Mar 6, 2000 | Mar 6, 2000 | Wheeler Operating Corporation | Garza | Guthrie-Post Montgomery Co-OP #1 | 4,000 | 16933575 |
| 492792 | Mar 6, 2000 | Mar 6, 2000 | Wheeler Operating Corporation | Garza | Post-Montgomery II #1 | 4,000 | 16933574 |
| 492791 | Mar 6, 2000 | Mar 6, 2000 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #5 | 4,000 | 16933573 |
| 492790 | Mar 6, 2000 | Mar 6, 2000 | Wheeler Operating Corporation | Hockley | Bullin #1 | 9,000 | 21936511 |
| 492789 | Mar 6, 2000 | Mar 6, 2000 | Wheeler Operating Corporation | Hockley | Wilson Estate #8 | 9,000 | 21936510 |
| 492501 | Feb 28, 2000 | Feb 28, 2000 | Wheeler Operating Corporation | Hockley | Caddell #3 | 8,260 | 21936503 |
| 492500 | Feb 28, 2000 | Feb 28, 2000 | Wheeler Operating Corporation | Hockley | Caddell #4 | 8,260 | 21936502 |
| 491726 | Feb 3, 2000 | Feb 3, 2000 | Wheeler Operating Corporation | Garza | Carlisle "B" #1 | 4,000 | 16933569 |
| 491669 | Feb 2, 2000 | Feb 2, 2000 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #4 | 4,000 | 16933568 |
| 491668 | Feb 2, 2000 | Feb 2, 2000 | Wheeler Operating Corporation | Hockley | Campbell #1W | 9,000 | 21933153 |
| 491667 | Feb 2, 2000 | Feb 2, 2000 | Wheeler Operating Corporation | Hockley | Campbell #2 | 9,000 | 21936501 |
| 490814 | Jan 4, 2000 | Jan 4, 2000 | Wheeler Operating Corporation | De Witt | Hoehne #1 | 11,000 | 12331875 |
| 490814Amendment | Jan 4, 2000 | Jan 4, 2000 | Wheeler Operating Corporation | De Witt | Hoehne #1 | 11,000 | 12331875 |
| 490814Amendment | Jan 4, 2000 | Jan 4, 2000 | Wheeler Operating Corporation | De Witt | Hoehne #1 | 11,000 | 12331875 |
| 490814Amendment | Jan 4, 2000 | Jan 4, 2000 | Wheeler Operating Corporation | De Witt | Hoehne #1 | 11,000 | 12331875 |
| 488876 | Oct 26, 1999 | Oct 26, 1999 | Wheeler Operating Corporation | De Witt | Pevestorff, Edgar J. #1 | 10,000 | 12331868 |
| 488876Amendment | Oct 26, 1999 | Oct 26, 1999 | Wheeler Operating Corporation | De Witt | Pevestorff, Edgar J. #1 | 10,000 | 12331868 |
| 488876Amendment | Oct 26, 1999 | Oct 26, 1999 | Wheeler Operating Corporation | De Witt | Pevestorff, Edgar J. #1 | 10,000 | 12331868 |
| 487549 | Sep 13, 1999 | Sep 13, 1999 | Wheeler Operating Corporation | Hockley | Jones, T. F. #1 | 10,300 | 21900391 |
| 487062 | Aug 27, 1999 | Aug 27, 1999 | Wheeler Operating Corporation | Brazoria | Holmes, Lucy B. #2 | 9,000 | 03902895 |
| 485344 | Jun 23, 1999 | Jun 23, 1999 | Wheeler Operating Corporation | Garza | Gordon "A" #1 | 3,300 | 16930437 |
| 480573 | Nov 9, 1998 | Nov 9, 1998 | Wheeler Operating Corporation | Hockley | Hunt-Slaughter #19 | 9,000 | 21935857 |
| 480501 | Oct 30, 1998 | Oct 30, 1998 | Wheeler Operating Corporation | Hockley | Slaughter Heirs #25 | 11,000 | 21933459 |
| 480246 | Oct 16, 1998 | Oct 16, 1998 | Wheeler Operating Corporation | Hockley | Slaughter, A. A. Estate #154 | 6,800 | 21936454 |
| 480245 | Oct 16, 1998 | Oct 16, 1998 | Wheeler Operating Corporation | Hockley | Slaughter, A. A. Estate #153 | 6,800 | 21936453 |
| 473040 | Feb 11, 1998 | Feb 11, 1998 | Wheeler Operating Corporation | Hockley | Bullin #2W | 8,050 | 21936150 |
| 472979 | Feb 5, 1998 | Feb 5, 1998 | Wheeler Operating Corporation | Hockley | Padon #1 | 10,000 | 21936410 |
| 472979Amendment | Feb 5, 1998 | Feb 5, 1998 | Wheeler Operating Corporation | Hockley | Padon #1 | 9,000 | 21936410 |
| 472659 | Jan 29, 1998 | Jan 29, 1998 | Wheeler Operating Corporation | Hockley | Bullin-Loran Unit #1 | 10,000 | 21936409 |
| 472659Amendment | Jan 29, 1998 | Jan 29, 1998 | Wheeler Operating Corporation | Hockley | Bullin-Loran Unit #1 | 10,000 | 21936409 |
| 472297 | Jan 16, 1998 | Jan 16, 1998 | Wheeler Operating Corporation | Hockley | Musslewhite, Verna #1 | 10,400 | 21936407 |
| 472297Amendment | Jan 16, 1998 | Jan 16, 1998 | Wheeler Operating Corporation | Hockley | Musslewhite, Verna #1 | 10,400 | 21936407 |
| 472297Amendment | Jan 16, 1998 | Jan 16, 1998 | Wheeler Operating Corporation | Hockley | Musslewhite, Verna #1 | 10,400 | 21936407 |
| 472297Amendment | Jan 16, 1998 | Jan 16, 1998 | Wheeler Operating Corporation | Hockley | Musslewhite, Verna #1 | 10,400 | 21936407 |
| 470934 | Dec 8, 1997 | Dec 8, 1997 | Wheeler Operating Corporation | Hockley | Slaughter, A. A. Estate #152 | 6,800 | 21936385 |
| 470933 | Dec 8, 1997 | Dec 8, 1997 | Wheeler Operating Corporation | Hockley | Slaughter, A. A. Estate #151 | 6,800 | 21936384 |
| 470704 | Dec 1, 1997 | Dec 1, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #23 | 3,300 | 16933497 |
| 470703 | Dec 1, 1997 | Dec 1, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #22 | 3,300 | 16933498 |
| 470397 | Nov 24, 1997 | Nov 24, 1997 | Wheeler Operating Corporation | Hockley | Arnwine #3 | 9,000 | 21936381 |
| 469647 | Nov 7, 1997 | Nov 7, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #21 | 3,300 | 16933494 |
| 467741 | Sep 26, 1997 | Sep 26, 1997 | Wheeler Operating Corporation | Garza | Gordon "B" #2 | 3,300 | 16930362 |
| 467743 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Gordon "B" #4 | 3,310 | 16930373 |
| 467742 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Gordon "B" #3 | 3,355 | 16930372 |
| 467740 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Gordon "B" #1 | 3,300 | 16930347 |
| 467739 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Gordon "A" #1 | 3,300 | 16930437 |
| 467738 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Gordon #3 | 3,300 | 16930288 |
| 467737 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Gordon #2W | 3,270 | 16930240 |
| 467735 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Gordon #1 | 3,410 | 16930225 |
| 467734 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Carlisle #6 | 3,537 | 16930536 |
| 467733 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Carlisle #5 | 3,523 | 16930538 |
| 467732 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Carlisle #4 | 3,523 | 16930537 |
| 467730 | Sep 23, 1997 | Sep 23, 1997 | Wheeler Operating Corporation | Garza | Carlisle #2 | 3,543 | 16930421 |
| 465224 | Jul 24, 1997 | Jul 24, 1997 | Wheeler Operating Corporation | Garza | Barker #4 | 3,506 | 16930533 |
| 465223 | Jul 24, 1997 | Jul 24, 1997 | Wheeler Operating Corporation | Garza | Barker #3 | 3,493 | 16930488 |
| 465222 | Jul 24, 1997 | Jul 24, 1997 | Wheeler Operating Corporation | Garza | Barker #2 | 3,490 | 16930409 |
| 465221 | Jul 24, 1997 | Jul 24, 1997 | Wheeler Operating Corporation | Garza | Barker #1 | 3,490 | 16930410 |
| 465044 | Jul 21, 1997 | Jul 21, 1997 | Wheeler Operating Corporation | Garza | Guthrie #3 | 3,563 | 16930588 |
| 465043 | Jul 21, 1997 | Jul 21, 1997 | Wheeler Operating Corporation | Garza | Guthrie #2 | 3,517 | 16930534 |
| 465042 | Jul 21, 1997 | Jul 21, 1997 | Wheeler Operating Corporation | Garza | Guthrie #1 | 3,490 | 16930408 |
| 463150 | Jun 5, 1997 | Jun 5, 1997 | Wheeler Operating Corporation | Garza | Connell "A" #1W | 5,000 | 16933470 |
| 460951 | Apr 16, 1997 | Apr 16, 1997 | Wheeler Operating Corporation | Garza | Connell "A" #2 | 5,000 | 16933461 |
| 460888 | Apr 11, 1997 | Apr 11, 1997 | Wheeler Operating Corporation | Garza | Guthrie #4 | 5,000 | 16933460 |
| 460189 | Mar 26, 1997 | Mar 26, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "B" #11W | 5,000 | 16930892 |
| 460067 | Mar 25, 1997 | Mar 25, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "B" #10 | 5,000 | 16930891 |
| 459393 | Mar 7, 1997 | Mar 7, 1997 | Wheeler Operating Corporation | Garza | Connell, Arlene #16W | 5,000 | 16933452 |
| 459396 | Mar 6, 1997 | Mar 6, 1997 | Wheeler Operating Corporation | Garza | Guthrie #1W | 5,000 | 16933448 |
| 459395 | Mar 6, 1997 | Mar 6, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "B" #2W | 5,000 | 16933449 |
| 459394 | Mar 6, 1997 | Mar 6, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "B" #1W | 5,000 | 16933450 |
| 459392 | Mar 6, 1997 | Mar 6, 1997 | Wheeler Operating Corporation | Garza | Connell "A" #2W | 5,000 | 16933451 |
| 459132 | Feb 28, 1997 | Feb 28, 1997 | Wheeler Operating Corporation | Hockley | Arnwine-Wilson Unit #1 | 10,000 | 21935968 |
| 458462 | Feb 18, 1997 | Feb 18, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #6W | 4,000 | 16933443 |
| 458461 | Feb 13, 1997 | Feb 13, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #5W | 4,000 | 16933442 |
| 458369 | Feb 13, 1997 | Feb 13, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #4W | 4,000 | 16933441 |
| 458374 | Feb 12, 1997 | Feb 12, 1997 | Wheeler Operating Corporation | Hockley | Arwine-Wilson Unit #1 | 10,000 | 21935870 |
| 458368 | Feb 12, 1997 | Feb 12, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #3W | 4,000 | 16933440 |
| 458367 | Feb 12, 1997 | Feb 12, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #3 | 4,000 | 16933439 |
| 458003 | Feb 7, 1997 | Feb 7, 1997 | Wheeler Operating Corporation | Garza | Connell "A" #1 | 5,000 | 16933436 |
| 457595 | Jan 27, 1997 | Jan 27, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #20 | 5,500 | 16933434 |
| 457274 | Jan 15, 1997 | Jan 15, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #19 | 5,500 | 16933433 |
| 457253 | Jan 15, 1997 | Jan 15, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #18 | 5,500 | 16933432 |
| 457252 | Jan 15, 1997 | Jan 15, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #17W | 5,500 | 16933431 |
| 457248 | Jan 15, 1997 | Jan 15, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #14 | 5,500 | 16933427 |
| 457250 | Jan 14, 1997 | Jan 14, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #16W | 5,500 | 16933428 |
| 457249 | Jan 14, 1997 | Jan 14, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #15W | 5,500 | 16933429 |
| 457247 | Jan 14, 1997 | Jan 14, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #13 | 5,500 | 16933430 |
| 457246 | Jan 14, 1997 | Jan 14, 1997 | Wheeler Operating Corporation | Garza | Connell Estate "937" #12 | 5,500 | 16933426 |
| 456699 | Jan 7, 1997 | Jan 7, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #2W | 4,000 | 16933421 |
| 456698 | Jan 7, 1997 | Jan 7, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #2 | 4,000 | 16933420 |
| 456697 | Jan 7, 1997 | Jan 7, 1997 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #1W | 4,000 | 16933419 |
| 456942 | Jan 3, 1997 | Jan 3, 1997 | Wheeler Operating Corporation | Garza | Connell, Arlene #15W | 5,000 | 16933424 |
| 456942Amendment | Jan 3, 1997 | Jan 3, 1997 | Wheeler Operating Corporation | Garza | Connell, Arlene #15W | 5,000 | 16933424 |
| 455014Amendment | Nov 12, 1996 | Nov 12, 1996 | Wheeler Operating Corporation | Garza | Post-Montgomery "20" #1 | 4,000 | 16933411 |
| 454236Amendment | Oct 22, 1996 | Oct 22, 1996 | Wheeler Operating Corporation | Garza | Connell Estate "937" #5W | 5,500 | 16933404 |
| 454235Amendment | Oct 22, 1996 | Oct 22, 1996 | Wheeler Operating Corporation | Garza | Connell Est 937 #4 | 5,500 | 16933403 |