| 467707Amendment | Sep 18, 1997 | Sep 18, 1997 | Christopher Oil & Gas Inc | Collins, Pearl Swift #2 | 8,400 | 39132199 |
| 467707Amendment | Sep 18, 1997 | Sep 18, 1997 | Christopher Oil & Gas Inc | Collins, Pearl Swift #2 | 8,400 | 39132199 |
| 467653 | Sep 16, 1997 | Sep 16, 1997 | Wiser Oil Company, The | Welder "A" #34 | 6,300 | 39132198 |
| 467652 | Sep 16, 1997 | Sep 16, 1997 | Wiser Oil Company, The | Shay "D" #3 | 6,300 | 39132197 |
| 467652Amendment | Sep 16, 1997 | Sep 16, 1997 | Wiser Oil Company, The | Shay "D" #3 | 6,300 | 39132197 |
| 467079 | Sep 15, 1997 | Sep 15, 1997 | T - C Oil Company | O'Connor #64 | 4,500 | 39131836 |
| 467044 | Sep 12, 1997 | Sep 12, 1997 | CTR Petroleum, Inc. | Davenport, O. H. #8 | 5,540 | 39102523 |
| 467369 | Sep 9, 1997 | Sep 9, 1997 | Cobra Operating Company | Carter #1 | 5,000 | 39132196 |
| 466916 | Aug 29, 1997 | Aug 29, 1997 | Kebo Oil & Gas, Inc. | O'Connor, M. V. Estate #3 | 6,600 | 39132195 |
| 466566 | Aug 28, 1997 | Aug 28, 1997 | Quintana Pet. Corp. | Heard, Ira 'A' #12 | 8,325 | 39130127 |
| 466566Amendment | Aug 28, 1997 | Aug 28, 1997 | Quintana Pet. Corp. | Heard, Ira 'A' #12 | 8,325 | 39130127 |
| 466636 | Aug 22, 1997 | Aug 22, 1997 | Wiser Oil Company, The | Vincent "I" #4 | 6,300 | 39132193 |
| 466635 | Aug 22, 1997 | Aug 22, 1997 | Wiser Oil Company, The | Welder "F" #33 | 6,300 | 39132194 |
| 466635Amendment | Aug 22, 1997 | Aug 22, 1997 | Wiser Oil Company, The | Welder "F" #33 | 6,300 | 39132194 |
| 466412 | Aug 20, 1997 | Aug 20, 1997 | Gilster, Ralph R. III | BP #1 | 7,700 | 39132192 |
| 466100 | Aug 15, 1997 | Aug 15, 1997 | Nordan & Company | Nordan, L.A.-O'Connor, Thos. Est #9 | 5,500 | 39101736 |
| 465301 | Jul 29, 1997 | Jul 29, 1997 | T - C Oil Company | O'Connor #52 | 5,200 | 39130233 |
| 465557 | Jul 28, 1997 | Jul 28, 1997 | Wiser Oil Company, The | Vincent #3 | 6,200 | 39132191 |
| 465549 | Jul 28, 1997 | Jul 28, 1997 | Wiser Oil Company, The | Welder "G" #32 | 6,100 | 39132190 |
| 464971 | Jul 22, 1997 | Jul 22, 1997 | Quintana Pet. Corp. | Tom Oconnor (5800 SD) Field Unit #Q434 | 6,290 | 39100662 |
| 464970 | Jul 21, 1997 | Jul 21, 1997 | Quintana Pet. Corp. | Heard, Fannie V. W. Mrs. #100 | 6,017 | 39131577 |
| 465075 | Jul 18, 1997 | Jul 18, 1997 | Mellon Oil Unit | Mellon Oil Unit #27 | 4,500 | 39101741 |
| 464843 | Jul 18, 1997 | Jul 18, 1997 | Quintana Pet. Corp. | Bauer, Mary Claire et Vir #1G | 5,949 | 39110075 |
| 464384 | Jul 14, 1997 | Jul 14, 1997 | Laroco LLP | La Rosa Gas Unit #46 | 5,000 | 39103366 |
| 463676 | Jul 14, 1997 | Jul 14, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'B' #54 | 6,800 | 39132188 |
| 464518 | Jul 2, 1997 | Jul 2, 1997 | Anderson Oil Corporation | Kentucky-Fagan #4 | 3,900 | 39132189 |
| 464139 | Jun 30, 1997 | Jun 30, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'A' #84 | 5,919 | 39101551 |
| 462012 | Jun 26, 1997 | Jun 26, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'C' #9 | 5,925 | 39101167 |
| 464033 | Jun 24, 1997 | Jun 24, 1997 | Quintana Pet. Corp. | Tom OCONNOR(5800 Sand)field Unit #Q346 | 5,923 | 39100568 |
| 463678 | Jun 18, 1997 | Jun 18, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'C' #22 | 5,925 | 39101135 |
| 463678Amendment | Jun 18, 1997 | Jun 18, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'C' #22 | 5,925 | 39101135 |
| 463578 | Jun 16, 1997 | Jun 16, 1997 | T - C Oil Company | O'Connor, Dennis et al "L" #L 38 | 4,600 | 39130168 |
| 463525 | Jun 16, 1997 | Jun 16, 1997 | Copano Company | O'Connor, Thomas "E" #E 39 | 5,600 | 39101663 |
| 463095 | Jun 9, 1997 | Jun 9, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'B' #52 | 8,800 | 39132184 |
| 463095Amendment | Jun 9, 1997 | Jun 9, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'B' #52 | 8,800 | 39132184 |
| 462906 | Jun 9, 1997 | Jun 9, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'A' #115 | 6,800 | 39132182 |
| 462905 | Jun 9, 1997 | Jun 9, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'B' #39 | 8,500 | 39132183 |
| 463485 | Jun 6, 1997 | Jun 6, 1997 | Edco Energy, Inc. | Tatton #1BE | 4,800 | 39132187 |
| 463380 | Jun 5, 1997 | Jun 5, 1997 | Dale Operating Company | Shay "B" #2 | 6,500 | 39132186 |
| 463380Amendment | Jun 5, 1997 | Jun 5, 1997 | Wiser Oil Company, The | Shay "B" #2 | 6,500 | 39132186 |
| 463379 | Jun 5, 1997 | Jun 5, 1997 | Dale Operating Company | Welder "C" #30 | 3,400 | 39132185 |
| 463379Amendment | Jun 5, 1997 | Jun 5, 1997 | Wiser Oil Company, The | Welder "C" #30 | 3,400 | 39132185 |
| 462945 | Jun 4, 1997 | Jun 4, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #7 | 5,923 | 39100421 |
| 462908 | Jun 4, 1997 | Jun 4, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'C' #12 | 5,925 | 39101562 |
| 462882 | May 30, 1997 | May 30, 1997 | Copano Company | O'Connor, Thomas "B" #B 41 | 5,600 | 39101621 |
| 462882Amendment | May 30, 1997 | May 30, 1997 | Copano Company | O'Connor, Thomas "B" #B 41 | 5,800 | 39101621 |
| 462351 | May 19, 1997 | May 19, 1997 | El Regalo Operating Co | Kloesel #1 | 9,000 | 39132181 |
| 461376 | May 19, 1997 | May 19, 1997 | Slack Oil & Gas | Shelton, J. Isabella #B 3 | 6,020 | 39102772 |
| 462317 | May 14, 1997 | May 14, 1997 | Quintana Pet. Corp. | O'Connor, Thomas "B" #49 | 8,350 | 39132033 |
| 461183 | May 12, 1997 | May 12, 1997 | Exxon Corp. | Heard, J.F.B. #3 | 2,856 | 39100862 |
| 462252 | May 9, 1997 | May 9, 1997 | Dale Operating Company | Welder "H" #31 | 6,500 | 39132180 |
| 461080 | May 7, 1997 | May 7, 1997 | Emerald Oil & Gas LC | O'Connor, Mary Ellen #B 8 | 5,500 | 39101879 |
| 460026 | May 6, 1997 | May 6, 1997 | Quintana Pet. Corp. | Bauer, Mary Claire et Vir #1 | 5,942 | 39110075 |
| 461722 | May 2, 1997 | May 2, 1997 | Citation Oil & Gas Corp. | El Oso Cattle Company #1 | 6,215 | 39103687 |
| 461883 | May 1, 1997 | May 1, 1997 | Texas Western Energy Corporation | St. Tract #2 San Antonio River #1 | 3,530 | 39130180 |
| 461857 | May 1, 1997 | May 1, 1997 | Dale Operating Company | Welder "H" #29 | 6,500 | 39132179 |
| 460304 | Apr 18, 1997 | Apr 18, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'B' #31D | 6,008 | 39100528 |
| 461191 | Apr 17, 1997 | Apr 17, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #26 | 5,925 | 39100434 |
| 460954 | Apr 16, 1997 | Apr 16, 1997 | Slack Oil & Gas | Mitchell, J. N. #5 | 5,600 | 39102814 |
| 460997 | Apr 11, 1997 | Apr 11, 1997 | Pedeco, Inc. | Olson #1 | 7,500 | 39132178 |
| 460997Amendment | Apr 11, 1997 | Apr 11, 1997 | Pedeco, Inc. | Olson #1 | 7,500 | 39132178 |
| 460784 | Apr 11, 1997 | Apr 11, 1997 | Quintana Pet. Corp. | Tom O'Connor (5800 Sand) Field U #Q933 | 6,021 | 39100493 |
| 460872 | Apr 9, 1997 | Apr 9, 1997 | Anderson Oil Corporation | Kentucky-Fagan #7 | 3,400 | 39132177 |
| 460872Amendment | Apr 9, 1997 | Apr 9, 1997 | Anderson Oil Corporation | Kentucky-Fagan #7 | 3,247 | 39132177 |
| 460644 | Apr 7, 1997 | Apr 7, 1997 | CTR Petroleum, Inc. | Heard-State Unit #2 #206 | 2,518 | 39131974 |
| 460332 | Apr 2, 1997 | Apr 2, 1997 | Slack Oil & Gas | Mitchell, J.N. #6 | 5,790 | 39102793 |
| 460410 | Mar 31, 1997 | Mar 31, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'C' #32 | 5,925 | 39101147 |
| 460483 | Mar 28, 1997 | Mar 28, 1997 | Kebo Oil & Gas, Inc. | O'Connor M. V. #3 | 6,600 | 39132176 |
| 459821 | Mar 18, 1997 | Mar 18, 1997 | Josey, Lenoir M., Inc. | O'Brien, J. M. #2 | 3,900 | 39101034 |
| 459453 | Mar 5, 1997 | Mar 5, 1997 | Pennzoil Exploration & Prod. Co. | Lambert, M.F. #B 2D | 5,900 | 39132081 |
| 459451 | Mar 5, 1997 | Mar 5, 1997 | Pennzoil Exploration & Prod. Co. | Fox, W.J. #A 44 | 5,800 | 39131223 |
| 458904 | Mar 5, 1997 | Mar 5, 1997 | Lundberg Operating Corporation | Shelton, F. B. #1 | 5,580 | 39131601 |
| 459275 | Mar 4, 1997 | Mar 4, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'A' #7 | 5,838 | 39101500 |
| 459312 | Feb 28, 1997 | Feb 28, 1997 | Anderson Oil Corporation | Gant-Stone #2RL | 3,500 | 39132175 |
| 458893 | Feb 28, 1997 | Feb 28, 1997 | Quintana Pet. Corp. | Tom Oconnor (5800 SD) Field Unit #Q410 | 5,925 | 39100545 |
| 458880 | Feb 28, 1997 | Feb 28, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D 3G | 6,106 | 39100220 |
| 459085 | Feb 26, 1997 | Feb 26, 1997 | Quintana Pet. Corp. | Heard, Ira 'A' #14 | 7,565 | 39130158 |
| 458850 | Feb 26, 1997 | Feb 26, 1997 | Quintana Pet. Corp. | Heard, Fannie V. W. Mrs. #34 | 5,925 | 39100564 |
| 458850Amendment | Feb 26, 1997 | Feb 26, 1997 | Quintana Pet. Corp. | Heard, Fannie V. W. Mrs. #34 | 5,925 | 39100564 |
| 459009 | Feb 21, 1997 | Feb 21, 1997 | Anderson Oil Corporation | Gant-Stone #2R | 3,500 | 39132174 |
| 458730 | Feb 18, 1997 | Feb 18, 1997 | Dale Operating Company | Welder "B" #26 | 3,000 | 39132173 |
| 458729 | Feb 18, 1997 | Feb 18, 1997 | Dale Operating Company | Welder "C" #25 | 6,500 | 39132172 |
| 458643 | Feb 14, 1997 | Feb 14, 1997 | Dale Operating Company | Welder "G" #28 | 6,200 | 39132170 |
| 458643Amendment | Feb 14, 1997 | Feb 14, 1997 | Dale Operating Company | Welder "G" #28 | 6,200 | 39132170 |
| 458642 | Feb 14, 1997 | Feb 14, 1997 | Dale Operating Company | Welder "G" #27 | 6,200 | 39132171 |
| 458642Amendment | Feb 14, 1997 | Feb 14, 1997 | Dale Operating Company | Welder "G" #27 | 6,200 | 39132171 |
| 458618 | Feb 13, 1997 | Feb 13, 1997 | Anderson Oil Corporation | Gant-Stone #2 | 3,500 | 39132169 |
| 458614 | Feb 13, 1997 | Feb 13, 1997 | Dale Operating Company | Welder "C" #24 | 6,500 | 39132167 |
| 458614Amendment | Feb 13, 1997 | Feb 13, 1997 | Dale Operating Company | Welder "C" #24 | 6,500 | 39132167 |
| 458613 | Feb 13, 1997 | Feb 13, 1997 | Dale Operating Company | Shay #1 | 6,500 | 39132168 |
| 458613Amendment | Feb 13, 1997 | Feb 13, 1997 | Dale Operating Company | Shay #1 | 6,500 | 39132168 |
| 458364 | Feb 7, 1997 | Feb 7, 1997 | Dale Operating Company | Welder "C" #23 | 6,500 | 39132166 |
| 458364Amendment | Feb 7, 1997 | Feb 7, 1997 | Dale Operating Company | Welder "C" #23 | 6,500 | 39132166 |
| 458311 | Feb 7, 1997 | Feb 7, 1997 | Abraxas Petroleum Corporation | Roche Ranch #1 | 6,700 | 39132165 |
| 458209 | Feb 6, 1997 | Feb 6, 1997 | Quintana Pet. Corp. | Tom O'Connor 4400 Sand Gas Unit #Q002G | 5,915 | 39101531 |
| 456760 | Feb 3, 1997 | Feb 3, 1997 | H & D Operating Company | Roche, K. D. "D" #5 | 7,700 | 39132161 |
| 457868 | Jan 28, 1997 | Jan 28, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D 63F | 5,848 | 39100217 |
| 457624 | Jan 27, 1997 | Jan 27, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D125 | 6,110 | 39131775 |
| 457624Amendment | Jan 27, 1997 | Jan 27, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D125 | 6,110 | 39131775 |
| 457609 | Jan 21, 1997 | Jan 21, 1997 | Emerald Oil & Gas LC | O'Brien, J. J. #1 | 5,800 | 39102639 |