| 382059 | Dec 7, 1990 | Dec 7, 1990 | Texas Independent Explor., Inc. | Slick Estate 539 #4A42732454 | 4,500 |
| 382024 | Dec 6, 1990 | Dec 6, 1990 | Kebo Oil & Gas, Inc. | Boston Texas Land Trust #142732453 | 6,000 |
| 381906 | Dec 4, 1990 | Dec 4, 1990 | Wagner, Duer & Co. | Guerra Oil Unit #142732452 | 2,000 |
| 381906Amendment | Dec 4, 1990 | Dec 4, 1990 | Wagner, Duer & Co. | Guerra Oil Unit #142732452 | 2,000 |
| 381906Amendment | Dec 4, 1990 | Dec 4, 1990 | Wagner, Duer & Co. | Guerra Oil Unit #142732452 | 2,000 |
| 381686 | Dec 4, 1990 | Dec 4, 1990 | Glenn, Wayne E. & Assoc., Inc. | La Brisa Ranch/State #642731262 | 7,050 |
| 381686Amendment | Dec 4, 1990 | Dec 4, 1990 | Glenn, Wayne E. & Assoc., Inc. | La Brisa Ranch/State 542-B #642731262 | 7,050 |
| 381348 | Dec 4, 1990 | Dec 4, 1990 | Oryx Energy Company | Saenz, M. -State #1942701116 | 6,000 |
| 381561 | Dec 3, 1990 | Dec 3, 1990 | Glenn, Wayne E. & Assoc., Inc. | La Brisa Ranch #542 #342732338 | 5,607 |
| 381276 | Nov 28, 1990 | Nov 28, 1990 | Oryx Energy Company | De Lopez, C. V. -B- #542731903 | 9,300 |
| 381240 | Nov 28, 1990 | Nov 28, 1990 | Hanson Minerals Co. | Bloomberg, Samuel D. #342732449 | 11,500 |
| 381240Amendment | Nov 28, 1990 | Nov 28, 1990 | Hanson Minerals Co. | Bloomberg, Samuel D. #342732449 | 12,000 |
| 381240Amendment | Nov 28, 1990 | Nov 28, 1990 | Hanson Minerals Co. | Bloomberg, Samuel D. #342732449 | 12,000 |
| 381572 | Nov 27, 1990 | Nov 27, 1990 | Texas Independent Explor., Inc. | Cameron #142732451 | 9,500 |
| 381572Amendment | Nov 27, 1990 | Nov 27, 1990 | Texas Independent Explor., Inc. | Cameron #142732451 | 9,500 |
| 381203 | Nov 16, 1990 | Nov 16, 1990 | Hanson Minerals Co. | Bloomberg, Samuel D. #242732448 | 11,500 |
| 381203Amendment | Nov 16, 1990 | Nov 16, 1990 | Hanson Minerals Co. | Bloomberg, Samuel D. #242732448 | 11,500 |
| 380892 | Nov 14, 1990 | Nov 14, 1990 | Conoco Inc. | Slick, T.B. Est. A #15942732445 | 8,000 |
| 380891 | Nov 14, 1990 | Nov 14, 1990 | Conoco Inc. | Slick, T.B. Est. A #16042732446 | 8,000 |
| 380688 | Nov 13, 1990 | Nov 13, 1990 | KTX Management, Inc. | Garza, D. L. #142730175 | 4,510 |
| 380882 | Nov 9, 1990 | Nov 9, 1990 | Oryx Energy Company | Rodriguez, S. #442731265 | 6,150 |
| 380287 | Nov 7, 1990 | Nov 7, 1990 | Fina Oil & Chemical Company | Farm, S. W. & Ranch #642732443 | 8,000 |
| 379728 | Nov 5, 1990 | Nov 5, 1990 | Amax Oil & Gas Inc. | Texas Osage Gas Unit #242732178 | 10,000 |
| 380563 | Nov 2, 1990 | Nov 2, 1990 | Oryx Energy Company | De Lopez, C. V. #342700721 | 5,132 |
| 380509 | Nov 1, 1990 | Nov 1, 1990 | Oryx Energy Company | Saenz, M. -State #2442731882 | 6,512 |
| 380211 | Oct 26, 1990 | Oct 26, 1990 | Oryx Energy Company | Montalvo, I. V. -C- #142700569 | 6,611 |
| 380211Amendment | Oct 26, 1990 | Oct 26, 1990 | Oryx Energy Company | Montalvo, I. V. -C- #142700569 | 6,611 |
| 380128 | Oct 25, 1990 | Oct 25, 1990 | Oryx Energy Company | Rodriguez, S. #842731847 | 8,005 |
| 380090 | Oct 24, 1990 | Oct 24, 1990 | Hanson Minerals Co. | State of Texas #842732442 | 9,000 |
| 380090Amendment | Oct 24, 1990 | Oct 24, 1990 | Hanson Minerals Co. | State of Texas #842732442 | 9,000 |
| 380060 | Oct 24, 1990 | Oct 24, 1990 | Oryx Energy Company | Montalvo, L. V. -C- #2842700596 | 6,503 |
| 380060Amendment | Oct 24, 1990 | Oct 24, 1990 | Oryx Energy Company | Montalvo, I.V. -C- #2842700596 | 6,503 |
| 379700 | Oct 17, 1990 | Oct 17, 1990 | Oryx Energy Company | Laurel, C. #742731437 | 7,700 |
| 379586 | Oct 15, 1990 | Oct 15, 1990 | Texas Independent Explor., Inc. | Slick Estate #539542732398 | 7,500 |
| 379458 | Oct 15, 1990 | Oct 15, 1990 | Samedan Oil Corporation | Davenport-State A #142731836 | 9,500 |
| 379106 | Oct 12, 1990 | Oct 12, 1990 | Carnes Exploration Company | Gonzales - State #142732440 | 3,900 |
| 378708 | Oct 11, 1990 | Oct 11, 1990 | Fina Oil & Chemical Company | Davenport, O. H. Heirs #142731729 | 10,054 |
| 378312 | Oct 11, 1990 | Oct 11, 1990 | Fina Oil & Chemical Company | Slick, T. B. Estate #8342731708 | 10,296 |
| 379235 | Oct 10, 1990 | Oct 10, 1990 | Amax Oil & Gas Inc. | Celestino Garza Gas Unit #542732441 | 8,200 |
| 378705 | Oct 3, 1990 | Oct 3, 1990 | Tasca Exploration Company | Garcia, J. A., et Al #442732269 | 5,390 |
| 377867 | Sep 14, 1990 | Sep 14, 1990 | Fina Oil & Chemical Company | Slick, T. B. Estate #10342732439 | 9,000 |
| 377848 | Sep 11, 1990 | Sep 11, 1990 | Texas Independent Explor., Inc. | La Brisa Land & Cattle #142732292 | 6,500 |
| 377339 | Sep 11, 1990 | Sep 11, 1990 | Texas Independent Explor., Inc. | Yzaguirre #142732437 | 9,500 |
| 377295 | Sep 6, 1990 | Sep 6, 1990 | Fina Oil & Chemical Company | State Slick #D 1642731832 | 9,500 |
| 377410 | Sep 5, 1990 | Sep 5, 1990 | Hanson Minerals Co. | Mayfair-La Brisa #242732395 | 7,500 |
| 377407 | Sep 5, 1990 | Sep 5, 1990 | Hanson Minerals Co. | Cameron 137 #142732438 | 10,000 |
| 376029 | Aug 24, 1990 | Aug 24, 1990 | Oryx Energy Company | H. Acevado Gas Unit #142732321 | 8,150 |
| 376029Amendment | Aug 24, 1990 | Aug 24, 1990 | Oryx Energy Company | H. Acevado Gas Unit #142732321 | 8,150 |
| 376767 | Aug 23, 1990 | Aug 23, 1990 | Texaco Inc. | Bloomberg, S.D. #842730388 | 6,300 |
| 376619 | Aug 16, 1990 | Aug 16, 1990 | Suemaur Exploration, Inc. | Howell, J.J. #142732436 | 8,300 |
| 376576 | Aug 16, 1990 | Aug 16, 1990 | Fina Oil & Chemical Company | Tenneco Conoco Fee #342732281 | 8,800 |
| 376576Amendment | Aug 16, 1990 | Aug 16, 1990 | Fina Oil & Chemical Company | Tenneco Conoco Fee #342732281 | 8,800 |
| 376576Amendment | Aug 16, 1990 | Aug 16, 1990 | Fina Oil & Chemical Company | Tenneco Conoco Fee #342732281 | 8,800 |
| 376617 | Aug 15, 1990 | Aug 15, 1990 | Fina Oil & Chemical Company | Slick, T.B. Estate #10242732435 | 12,000 |
| 376617Amendment | Aug 15, 1990 | Aug 15, 1990 | Fina Oil & Chemical Company | Slick, T.B. Estate #10242732435 | 12,000 |
| 376469 | Aug 10, 1990 | Aug 10, 1990 | Tesoro Expl. & Prod. Company | Guerra #242732434 | 17,000 |
| 376469Amendment | Aug 10, 1990 | Aug 10, 1990 | Tesoro Expl. & Prod. Company | Guerra-USA Gas Unit C #242732434 | 14,581 |
| 376281 | Aug 8, 1990 | Aug 8, 1990 | Fina Oil & Chemical Company | Davenport, O. H. Heirs #542732433 | 10,200 |
| 376281Amendment | Aug 8, 1990 | Aug 8, 1990 | Fina Oil & Chemical Company | Davenport, O. H. Heirs #542732433 | 13,500 |
| 376037 | Aug 1, 1990 | Aug 1, 1990 | Hanson Minerals Co. | Bloomberg, Samuel D. #142732432 | 12,200 |
| 376037Amendment | Aug 1, 1990 | Aug 1, 1990 | Hanson Minerals Co. | Bloomberg, Samuel D. #142732432 | 12,200 |
| 376004 | Jul 31, 1990 | Jul 31, 1990 | Fina Oil & Chemical Company | Urschel, C. F. #642732431 | 9,000 |
| 376004Amendment | Jul 31, 1990 | Jul 31, 1990 | Fina Oil & Chemical Company | Urschel, C. F. #642732431 | 9,000 |
| 376050 | Jul 30, 1990 | Jul 30, 1990 | Oryx Energy Company | Yturria L & L Co. -B- #542732350 | 5,140 |
| 376050Amendment | Jul 30, 1990 | Jul 30, 1990 | Oryx Energy Company | Yturria L & L Co. -B- #542732350 | 5,140 |
| 375832 | Jul 26, 1990 | Jul 26, 1990 | L & F Drilling Co., Inc. (1) | Heard, F. V. W. Heirs Mrs #242700850 | 6,641 |
| 375874 | Jul 24, 1990 | Jul 24, 1990 | Hanson Minerals Co. | State of Texas #742732430 | 9,500 |
| 375874Amendment | Jul 24, 1990 | Jul 24, 1990 | Hanson Minerals Co. | State of Texas #742732430 | 9,500 |
| 375737 | Jul 24, 1990 | Jul 24, 1990 | Mortimer Exploration Company | Breaker #242732429 | 2,000 |
| 375737Amendment | Jul 24, 1990 | Jul 24, 1990 | Mortimer Exploration Company | Breaker #242732429 | 2,000 |
| 375737Amendment | Jul 24, 1990 | Jul 24, 1990 | Mortimer Exploration Company | Breaker #242732429 | 2,000 |
| 374055 | Jul 24, 1990 | Jul 24, 1990 | D.Y. Exploration, Inc. | Garza-Rivas Unit #10542701189 | 4,595 |
| 375775 | Jul 20, 1990 | Jul 20, 1990 | Oryx Energy Company | Garza, Juan M. #342732202 | 6,740 |
| 374712 | Jul 13, 1990 | Jul 13, 1990 | Wagner, Duer & Co. | Groos National Bank #3V42705128 | 925 |
| 375456 | Jul 12, 1990 | Jul 12, 1990 | Oryx Energy Company | Laurel, D. #1142731354 | 8,568 |
| 375456Amendment | Jul 12, 1990 | Jul 12, 1990 | Oryx Energy Company | Laurel, D. #1142731354 | 8,568 |
| 375348 | Jul 12, 1990 | Jul 12, 1990 | Fina Oil & Chemical Company | Fina Conoco Fee #1442732428 | 8,600 |
| 375348Amendment | Jul 12, 1990 | Jul 12, 1990 | Fina Oil & Chemical Company | Fina-Conoco Fee #1442732428 | 8,600 |
| 375427 | Jul 11, 1990 | Jul 11, 1990 | Oryx Energy Company | Yturria, L & L Co. B #242732006 | 7,031 |
| 375232 | Jul 11, 1990 | Jul 11, 1990 | Cameron, Paul E., Jr., Inc. | Cameron #1542732306 | 5,200 |
| 375363 | Jul 10, 1990 | Jul 10, 1990 | Fina Oil & Chemical Company | Urschel, C.F. #542732427 | 8,100 |
| 375363Amendment | Jul 10, 1990 | Jul 10, 1990 | Fina Oil & Chemical Company | Urschel, C.F. #542732427 | 8,100 |
| 375347 | Jul 10, 1990 | Jul 10, 1990 | Oryx Energy Company | Saenz, M. -State #2642731950 | 6,500 |
| 375067 | Jul 5, 1990 | Jul 5, 1990 | Sue-Ann Production Company | Barrera Estate GU #142731625 | 9,010 |
| 375057 | Jun 29, 1990 | Jun 29, 1990 | Oryx Energy Company | Hall, C. M. -A- #1042732318 | 8,999 |
| 374962 | Jun 27, 1990 | Jun 27, 1990 | Kebo Oil & Gas, Inc. | Salinas #142732426 | 6,100 |
| 374952 | Jun 27, 1990 | Jun 27, 1990 | Amax Oil & Gas Inc. | Celestino Garza Gas Unit #442732425 | 8,400 |
| 374925 | Jun 26, 1990 | Jun 26, 1990 | Oryx Energy Company | Hall, C. M. -A- #942732246 | 8,800 |
| 374783 | Jun 26, 1990 | Jun 26, 1990 | Hanson Minerals Co. | Mayfair la Brisa #342732424 | 8,000 |
| 374783Amendment | Jun 26, 1990 | Jun 26, 1990 | Hanson Minerals Co. | Mayfair Labrisa #342732424 | 8,000 |
| 374783Amendment | Jun 26, 1990 | Jun 26, 1990 | Hanson Minerals Co. | Mayfair la Brisa #342732424 | 7,590 |
| 374883 | Jun 25, 1990 | Jun 25, 1990 | Oryx Energy Company | Hall, J. F. -State #2342732258 | 7,495 |
| 374716 | Jun 25, 1990 | Jun 25, 1990 | Tesoro Expl. & Prod. Company | Silva #142732423 | 13,000 |
| 374824 | Jun 22, 1990 | Jun 22, 1990 | Oryx Energy Company | Montalvo, I.V. -C- #2642700594 | 5,666 |
| 374724 | Jun 20, 1990 | Jun 20, 1990 | Hanson Minerals Co. | HMC/Tie la Brisa #342732422 | 8,000 |
| 374052 | Jun 20, 1990 | Jun 20, 1990 | D.Y. Exploration, Inc. | Garza-Rivas Unit(d.d.oil Co.-B-) #101042701194 | 6,400 |
| 374459 | Jun 15, 1990 | Jun 15, 1990 | Exxon Corp. | Montalvo, N. R. & E. A. #2742731340 | 5,740 |
| 374230 | Jun 13, 1990 | Jun 13, 1990 | Suemaur Exploration, Inc. | H. Acevedo Gas Unit #142732330 | 6,000 |
| 374300 | Jun 12, 1990 | Jun 12, 1990 | BT Operating Co. | Thomas #142732421 | 9,000 |
| 374073 | Jun 8, 1990 | Jun 8, 1990 | D.Y. Exploration, Inc. | Garza-Rivas Unit(d.d.oil Co.-B-) #10842701192 | 4,400 |