| 373928 | Jun 8, 1990 | Jun 8, 1990 | Fina Oil & Chemical Company | Fina Conoco Fee #13 | 9,000 | 42732419 |
| 373928Amendment | Jun 8, 1990 | Jun 8, 1990 | Fina Oil & Chemical Company | Fina-Conoco Fee #13 | 9,000 | 42732419 |
| 374033 | Jun 6, 1990 | Jun 6, 1990 | Glenn, Wayne E. & Assoc., Inc. | La Brisa Ranch #5 | 6,000 | 42732420 |
| 374033Amendment | Jun 6, 1990 | Jun 6, 1990 | Glenn, Wayne E. & Assoc., Inc. | La Brisa Ranch #5 | 6,000 | 42732420 |
| 373965 | Jun 5, 1990 | Jun 5, 1990 | Fina Oil & Chemical Company | Slick, T. B. Estate #89 | 9,020 | 42731896 |
| 373902 | May 30, 1990 | May 30, 1990 | Fina Oil & Chemical Company | Urschel, C. F. #4 | 8,100 | 42732418 |
| 373632 | May 23, 1990 | May 23, 1990 | Carnes Exploration Company | Ricaby #1 | 1,800 | 42732417 |
| 373632Amendment | May 23, 1990 | May 23, 1990 | Carnes Exploration Company | Ricaby #1 | 1,741 | 42732417 |
| 373706 | May 22, 1990 | May 22, 1990 | Oryx Energy Company | Frost Natl. Bank Ind. Ex. -B- #34 | 4,400 | 42731319 |
| 372236 | May 22, 1990 | May 22, 1990 | Duty Oil Co. | Cook, Vannie Trusts #1 | 1,500 | 42732409 |
| 373281 | May 21, 1990 | May 21, 1990 | Cameron, Paul E., Jr., Inc. | Cameron #6 | 5,100 | 42732169 |
| 373373 | May 18, 1990 | May 18, 1990 | L & F Drilling Co., Inc. (1) | Heard, F. V. W. Mrs. Heirs #3 | 7,125 | 42700854 |
| 373254 | May 17, 1990 | May 17, 1990 | Fina Oil & Chemical Company | State-Slick "D" #20 | 8,900 | 42732415 |
| 373345 | May 14, 1990 | May 14, 1990 | BHP Petroleum (Americas) Inc. | Mendoza, Jose #1 | 13,500 | 42732416 |
| 373252 | May 11, 1990 | May 11, 1990 | Fina Oil & Chemical Company | State-Slick "D" #19 | 9,300 | 42732414 |
| 372974 | May 8, 1990 | May 8, 1990 | Hanson Minerals Co. | Cantu-Flores #2 | 11,800 | 42732413 |
| 372841 | May 4, 1990 | May 4, 1990 | Conoco Inc. | Slick, T.B. "B" #174 | 8,700 | 42732411 |
| 372841Amendment | May 4, 1990 | May 4, 1990 | Conoco Inc. | Slick, T.B. "B" #174 | 7,998 | 42732411 |
| 372931 | May 3, 1990 | May 3, 1990 | Hanson Minerals Co. | De Flores, M. S. #1 | 11,800 | 42732412 |
| 372636 | Apr 30, 1990 | Apr 30, 1990 | Exxon Corp. | Montalvo, N. R. #42 | 5,200 | 42705019 |
| 372628 | Apr 26, 1990 | Apr 26, 1990 | Neuhaus, V. F. Properties | Cameron, Don #3 | 5,800 | 42701359 |
| 372235 | Apr 20, 1990 | Apr 20, 1990 | Duty Oil Co. | Cook, Vannie Trusts #2 | 1,500 | 42732410 |
| 371892 | Apr 20, 1990 | Apr 20, 1990 | Graham Royalty, Ltd. | Pena, Niceforo Jr. No. 1 #1 | 7,920 | 42731571 |
| 372176 | Apr 18, 1990 | Apr 18, 1990 | Sue-Ann Production Company | Barrera Estate GU #2 | 1,000 | 42732408 |
| 371982 | Apr 12, 1990 | Apr 12, 1990 | Zenergy,inc/Reef Exploration Inc | Roos #1 | 4,800 | 42732407 |
| 372083 | Apr 11, 1990 | Apr 11, 1990 | BT Operating Co. | Sanchez #1 | 9,800 | 42732406 |
| 371877 | Apr 5, 1990 | Apr 5, 1990 | Oryx Energy Company | Chapotal Land Co. B #21 | 9,861 | 42731631 |
| 371744 | Apr 4, 1990 | Apr 4, 1990 | Exxon Corp. | McGill Bros. #366 | 6,570 | 42704878 |
| 371660 | Apr 4, 1990 | Apr 4, 1990 | Conoco Inc. | Slick, T. B. "B" #173 | 8,500 | 42732405 |
| 371660Amendment | Apr 4, 1990 | Apr 4, 1990 | Conoco Inc. | Slick, T. B. "B" #173 | 8,500 | 42732405 |
| 371619 | Apr 4, 1990 | Apr 4, 1990 | Exxon Corp. | McGill Bros. #252 | 7,781 | 42700237 |
| 371658 | Mar 30, 1990 | Mar 30, 1990 | Neuhaus, V. F. Properties | Cameron, Don #1 | 5,800 | 42701357 |
| 371566 | Mar 28, 1990 | Mar 28, 1990 | Oryx Energy Company | De Garza, C. L. #21 | 6,702 | 42700549 |
| 371517 | Mar 28, 1990 | Mar 28, 1990 | Texas Independent Explor., Inc. | Slick, T.B. Estate #5352 | 8,000 | 42732400 |
| 371517Amendment | Mar 28, 1990 | Mar 28, 1990 | Texas Independent Explor., Inc. | Slick, T.B. Estate #5352 | 8,000 | 42732400 |
| 371516 | Mar 28, 1990 | Mar 28, 1990 | Texas Independent Explor., Inc. | Slick, T.B. Estate #5351 | 8,000 | 42732403 |
| 371516Amendment | Mar 28, 1990 | Mar 28, 1990 | Texas Independent Explor., Inc. | Slick, T.B. Estate #5351 | 8,000 | 42732403 |
| 371515 | Mar 28, 1990 | Mar 28, 1990 | Texas Independent Explor., Inc. | Slick Estate #5399 | 5,700 | 42732404 |
| 371514 | Mar 28, 1990 | Mar 28, 1990 | Texas Independent Explor., Inc. | Slick Estate #5398 | 7,700 | 42732402 |
| 371513 | Mar 28, 1990 | Mar 28, 1990 | Texas Independent Explor., Inc. | Slick Estate #5397 | 7,000 | 42732401 |
| 371512 | Mar 28, 1990 | Mar 28, 1990 | Texas Independent Explor., Inc. | Slick Estate #5396 | 7,700 | 42732399 |
| 371511 | Mar 28, 1990 | Mar 28, 1990 | Texas Independent Explor., Inc. | Slick Estate #5395 | 7,700 | 42732398 |
| 371508 | Mar 28, 1990 | Mar 28, 1990 | Exxon Corp. | McGill Bros. #405 | 8,470 | 42705087 |
| 371505 | Mar 27, 1990 | Mar 27, 1990 | Oryx Energy Company | Hall, J. F. State -A- #8 | 9,810 | 42731834 |
| 371297 | Mar 23, 1990 | Mar 23, 1990 | Hanson Minerals Co. | Boston Texas Land Trust #1 | 7,500 | 42732397 |
| 370783 | Mar 23, 1990 | Mar 23, 1990 | Fina Oil & Chemical Company | Fina-Conoco Fee #12 | 9,000 | 42732396 |
| 370956 | Mar 14, 1990 | Mar 14, 1990 | Oryx Energy Company | Yturria L & L Co. B #5 | 5,078 | 42732350 |
| 370709 | Mar 14, 1990 | Mar 14, 1990 | Exxon Corp. | Juarez, Miguel #7 | 6,700 | 42731279 |
| 370471 | Mar 6, 1990 | Mar 6, 1990 | Fina Oil & Chemical Company | State-Slick "D" #18 | 10,200 | 42732394 |
| 370417 | Mar 5, 1990 | Mar 5, 1990 | Wagner, Duer & Co. | Bass, Velma #1 | 1,900 | 42732392 |
| 370505 | Mar 2, 1990 | Mar 2, 1990 | Hanson Minerals Co. | Mayfair la Brisa #2 | 7,500 | 42732395 |
| 370495 | Mar 2, 1990 | Mar 2, 1990 | Oryx Energy Company | Yturria L & L Co. -B- #4 | 5,288 | 42732347 |
| 370495Amendment | Mar 2, 1990 | Mar 2, 1990 | Oryx Energy Company | Yturria L & L 'B' #4 | 6,000 | 42732347 |
| 370469 | Mar 2, 1990 | Mar 2, 1990 | Royal Oil & Gas Corp. | Celestino Garza Gas Unit #3 | 8,200 | 42732393 |
| 370383 | Mar 1, 1990 | Mar 1, 1990 | Neuhaus, V. F. Properties | Cameron, Don #5 | 4,450 | 42701358 |
| 369044 | Feb 16, 1990 | Feb 16, 1990 | Oryx Energy Company | Coates, Geo. H. #14 | 6,499 | 42731942 |
| 369926 | Feb 15, 1990 | Feb 15, 1990 | Hanson Minerals Co. | State of Texas #6 | 8,500 | 42732391 |
| 369926Amendment | Feb 15, 1990 | Feb 15, 1990 | Hanson Minerals Co. | State of Texas #6 | 8,700 | 42732391 |
| 369784 | Feb 15, 1990 | Feb 15, 1990 | Conoco Inc. | Cameron, W. I. #23 | 5,200 | 42732389 |
| 369784Amendment | Feb 15, 1990 | Feb 15, 1990 | Conoco Inc. | Cameron, W. I. #23 | 5,200 | 42732389 |
| 369745 | Feb 15, 1990 | Feb 15, 1990 | Newman Operating Company | Villareal #1 | 6,000 | 42732390 |
| 369745Amendment | Feb 15, 1990 | Feb 15, 1990 | Newman Operating Company | Villareal #1 | 6,000 | 42732390 |
| 369822 | Feb 13, 1990 | Feb 13, 1990 | OXY USA Inc. | Martinez B #29 | 8,790 | 42701254 |
| 369647 | Feb 12, 1990 | Feb 12, 1990 | Conoco Inc. | Slick, T. B. "HB" #172 | 5,950 | 42732388 |
| 369646 | Feb 12, 1990 | Feb 12, 1990 | Conoco Inc. | Garcia, M. M. "D" #27 | 4,700 | 42732387 |
| 369646Amendment | Feb 12, 1990 | Feb 12, 1990 | Conoco Inc. | Garcia, M. M. "D" #27 | 4,700 | 42732387 |
| 369645 | Feb 12, 1990 | Feb 12, 1990 | Conoco Inc. | Garcia, M. M. "D" #26 | 4,700 | 42732386 |
| 369645Amendment | Feb 12, 1990 | Feb 12, 1990 | Conoco Inc. | Garcia, M. M. "D" #26 | 4,700 | 42732386 |
| 369649 | Feb 8, 1990 | Feb 8, 1990 | Conoco Inc. | Slick, T. B. "H" #85 | 6,100 | 42732385 |
| 369512 | Feb 7, 1990 | Feb 7, 1990 | Exxon Corp. | McGill Bros. #527 | 8,850 | 42732080 |
| 368430 | Feb 1, 1990 | Feb 1, 1990 | Oryx Energy Company | Speer, Geo. H. #20 | 5,302 | 42700727 |
| 368534 | Jan 30, 1990 | Jan 30, 1990 | Neuhaus, V. F. Properties | Cameron, Don et al State #1B | 7,500 | 42701353 |
| 369028 | Jan 29, 1990 | Jan 29, 1990 | Harkins & Company | Bentsen&whittington Gas Unit #1 #1 | 9,500 | 42732186 |
| 369023 | Jan 29, 1990 | Jan 29, 1990 | Tasca Exploration Company | Garcia, J. A. et Al #4 | 5,400 | 42732269 |
| 369034 | Jan 24, 1990 | Jan 24, 1990 | Oryx Energy Company | Hall, C. M. -C- #7 | 9,627 | 42732356 |
| 368934 | Jan 24, 1990 | Jan 24, 1990 | Conoco Inc. | Slick, T. B. Est E #8 | 4,200 | 42703561 |
| 368431 | Jan 9, 1990 | Jan 9, 1990 | Oryx Energy Company | Montalvo, I. V. -C- #44 | 6,650 | 42731782 |
| 368397 | Jan 8, 1990 | Jan 8, 1990 | OXY USA Inc. | Martinez 'B' #36 | 8,790 | 42732261 |
| 368397Amendment | Jan 8, 1990 | Jan 8, 1990 | OXY USA Inc. | Martinez 'B' #36 | 8,790 | 42732261 |
| 368397Amendment | Jan 8, 1990 | Jan 8, 1990 | OXY USA Inc. | Martinez 'B' #36 | 8,790 | 42732261 |
| 368310 | Jan 8, 1990 | Jan 8, 1990 | Oryx Energy Company | Slick Est. -C- #5 | 10,431 | 42731949 |
| 368189 | Jan 2, 1990 | Jan 2, 1990 | Hanson Minerals Co. | Cantu-Flores #1 | 7,500 | 42732384 |
| 368189Amendment | Jan 2, 1990 | Jan 2, 1990 | Hanson Minerals Co. | Cantu-Flores #1 | 7,500 | 42732384 |
| 368141 | Dec 29, 1989 | Dec 29, 1989 | Oryx Energy Company | Montalvo, I.V. -C- #26 | 5,666 | 42700594 |
| 367821 | Dec 29, 1989 | Dec 29, 1989 | Energy Development Corp. | Villarreal #18 | 7,100 | 42700303 |
| 367707 | Dec 28, 1989 | Dec 28, 1989 | Tesoro Expl. & Prod. Company | Guerra #1 | 13,500 | 42732383 |
| 367707Amendment | Dec 28, 1989 | Dec 28, 1989 | Tesoro Expl. & Prod. Company | Guerra #1 | 13,500 | 42732383 |
| 367823 | Dec 22, 1989 | Dec 22, 1989 | Exxon Corp. | McGill Bros. #492 | 7,500 | 42731716 |
| 367823Amendment | Dec 22, 1989 | Dec 22, 1989 | Exxon Corp. | McGill Bros. #492 | 7,500 | 42731716 |
| 367823Amendment | Dec 22, 1989 | Dec 22, 1989 | Exxon Corp. | McGill Bros. #492 | 6,226 | 42731716 |
| 367635 | Dec 15, 1989 | Dec 15, 1989 | Oryx Energy Company | De Garza, C. L. #31 | 9,159 | 42704827 |
| 367635Amendment | Dec 15, 1989 | Dec 15, 1989 | Oryx Energy Company | De Garza, C. L. #31 | 9,159 | 42704827 |
| 367635Amendment | Dec 15, 1989 | Dec 15, 1989 | Oryx Energy Company | De Garza, C. L. #31 | 9,159 | 42704827 |
| 367504 | Dec 14, 1989 | Dec 14, 1989 | Hanson Minerals Co. | State of Texas #5 | 6,300 | 42732382 |
| 367214 | Dec 11, 1989 | Dec 11, 1989 | Texas Independent Explor., Inc. | La Brisa Land & Cattle #9701 | 5,987 | 42703626 |
| 367184 | Dec 6, 1989 | Dec 6, 1989 | Suemaur Exploration, Inc. | H. Acevedo Gas Unit #2 | 5,562 | 42732344 |
| 367103 | Dec 5, 1989 | Dec 5, 1989 | Fina Oil & Chemical Company | Fina Conoco Fee #11 | 7,500 | 42732381 |
| 367104 | Dec 1, 1989 | Dec 1, 1989 | Fina Oil & Chemical Company | Fina Conoco Fee #10 | 8,000 | 42732380 |
| 367098 | Nov 30, 1989 | Nov 30, 1989 | Oryx Energy Company | Garza, Juan M. #3 | 6,740 | 42732202 |
| 367098Amendment | Nov 30, 1989 | Nov 30, 1989 | Oryx Energy Company | Garza, Juan M. #3 | 6,740 | 42732202 |