| 389331 | Jun 25, 1991 | Jun 25, 1991 | Oryx Energy Company | Garcia L&L -C- #7C | 8,800 | 42732465 |
| 389203 | Jun 21, 1991 | Jun 21, 1991 | Texas Independent Explor., Inc. | La Brisa 91 #1 | 4,800 | 42732483 |
| 389093 | Jun 19, 1991 | Jun 19, 1991 | Texas Independent Explor., Inc. | La Brisa 91 #2 | 4,800 | 42732482 |
| 389089 | Jun 18, 1991 | Jun 18, 1991 | Texas Independent Explor., Inc. | La Brisa 913 #1 | 4,800 | 42732481 |
| 388989 | Jun 17, 1991 | Jun 17, 1991 | Texas Independent Explor., Inc. | La Brisa 92 #1 | 4,800 | 42732480 |
| 388876 | Jun 12, 1991 | Jun 12, 1991 | Exxon Corp. | Juarez, Miguel #9 | 8,900 | 42731779 |
| 388425 | Jun 5, 1991 | Jun 5, 1991 | Enercorp Resources, Inc. | Luera, M.G. et Al #2 | 12,600 | 42731855 |
| 388234 | Jun 5, 1991 | Jun 5, 1991 | Neuhaus, V. F. Properties, Inc. | Sheerin, Irene - Texas State #9 | 975 | 42731160 |
| 388234Amendment | Jun 5, 1991 | Jun 5, 1991 | Neuhaus, V. F. Properties, Inc. | Sheerin, Irene - Texas State #9 | 975 | 42731160 |
| 388233 | Jun 5, 1991 | Jun 5, 1991 | Neuhaus, V. F. Properties, Inc. | Sheerin, Irene - Texas State #14 | 460 | 42731297 |
| 388297 | May 29, 1991 | May 29, 1991 | Hanson Minerals Co. | Mayfair la Brisa #4 | 8,000 | 42732479 |
| 388297Amendment | May 29, 1991 | May 29, 1991 | Hanson Minerals Co. | Mayfair la Brisa #4 | 7,925 | 42732479 |
| 388076 | May 21, 1991 | May 21, 1991 | Hanson Minerals Co. | State of Texas #8C | 8,655 | 42732442 |
| 386943 | May 13, 1991 | May 13, 1991 | Oryx Energy Company | H. Acevado Gas Unit #1 | 8,150 | 42732321 |
| 387621 | May 7, 1991 | May 7, 1991 | Hanson Minerals Co. | Perez #1 | 10,000 | 42732478 |
| 387444 | May 3, 1991 | May 3, 1991 | Texas Independent Explor., Inc. | Trevino Heirs 95 #1 | 5,000 | 42732477 |
| 387287 | Apr 30, 1991 | Apr 30, 1991 | Suemaur Exploration, Inc. | H. Acevedo Gas Unit #1 | 6,000 | 42732330 |
| 387255 | Apr 29, 1991 | Apr 29, 1991 | Union Pacific Resources Company | Guerra, F.B. Estate "B" #11 | 8,175 | 42732299 |
| 387009 | Apr 24, 1991 | Apr 24, 1991 | Exxon Corp. | Montalvo, N.R. #40 | 5,240 | 42720089 |
| 387099 | Apr 23, 1991 | Apr 23, 1991 | Tesoro Expl. & Prod. Company | Guerra #3 | 15,160 | 42732476 |
| 386849 | Apr 19, 1991 | Apr 19, 1991 | Exxon Corp. | Juarez, Miguel #6 | 7,800 | 42731243 |
| 386629 | Apr 19, 1991 | Apr 19, 1991 | Neuhaus, V. F. Properties, Inc. | Cameron, Don #3 | 5,700 | 42701359 |
| 385738 | Apr 19, 1991 | Apr 19, 1991 | Conoco Inc. | Slick, T. B. Est. - A #4 | 4,333 | 42701468 |
| 386788 | Apr 18, 1991 | Apr 18, 1991 | Conoco Inc. | Cameron, W. I #17 | 6,700 | 42701221 |
| 386687 | Apr 18, 1991 | Apr 18, 1991 | Exxon Corp. | Montalvo, N.R. #19 | 5,512 | 42704721 |
| 386421 | Apr 18, 1991 | Apr 18, 1991 | Mortimer Exploration Company | Groos National Bank #2 | 1,550 | 42732275 |
| 386592 | Apr 12, 1991 | Apr 12, 1991 | Exxon Corp. | Montalvo, N.R. #18 | 5,365 | 42704698 |
| 386592Amendment | Apr 12, 1991 | Apr 12, 1991 | Exxon Corp. | Montalvo, N.R. #18 | 5,365 | 42704698 |
| 386041 | Apr 9, 1991 | Apr 9, 1991 | Exxon Corp. | Montalvo, N.R. #28 | 4,990 | 42704868 |
| 383245 | Apr 9, 1991 | Apr 9, 1991 | D.Y. Exploration, Inc. | D.D. Oil Company -B- #11 | 6,092 | 42705048 |
| 386148 | Apr 5, 1991 | Apr 5, 1991 | Hanson Minerals Co. | Boston Texas Land Trust #1 | 7,400 | 42732397 |
| 386245 | Apr 1, 1991 | Apr 1, 1991 | Hanson Minerals Co. | State of Texas #11 | 7,200 | 42732475 |
| 386089 | Mar 29, 1991 | Mar 29, 1991 | Exxon Corp. | Montalvo, N.R. #27 | 4,960 | 42704828 |
| 386178 | Mar 28, 1991 | Mar 28, 1991 | Texas Independent Explor., Inc. | La Brisa 970 #2 | 7,600 | 42732474 |
| 386040 | Mar 26, 1991 | Mar 26, 1991 | Exxon Corp. | McGill Bros. #524 | 8,450 | 42732055 |
| 386025 | Mar 25, 1991 | Mar 25, 1991 | Starco Exploration, Inc. | Edmunds, A. K. #2A | 6,500 | 42732282 |
| 385998 | Mar 22, 1991 | Mar 22, 1991 | Neuhaus, V. F. Properties, Inc. | Gonzalez, et Al #1A | 3,000 | 42732473 |
| 385778 | Mar 21, 1991 | Mar 21, 1991 | Glenn, Wayne E. & Assoc., Inc. | La Brisa Ranch 542 #1 | 6,310 | 42732280 |
| 385648 | Mar 21, 1991 | Mar 21, 1991 | Hanson Minerals Co. | HMC/Tie la Brisa #3 | 6,788 | 42732422 |
| 385802 | Mar 18, 1991 | Mar 18, 1991 | Texas Independent Explor., Inc. | Slick Estate #5399 | 5,700 | 42732404 |
| 385581 | Mar 15, 1991 | Mar 15, 1991 | Petrorey, Inc. | Barrera, H. #1 | 3,000 | 42732472 |
| 385555 | Mar 13, 1991 | Mar 13, 1991 | Fina Oil & Chemical Company | Slick, T.B. Estate #101 | 10,417 | 42732145 |
| 385580 | Mar 12, 1991 | Mar 12, 1991 | Texas Independent Explor., Inc. | La Brisa 971 #1 | 6,100 | 42732471 |
| 385475 | Mar 12, 1991 | Mar 12, 1991 | Pyle Petroleum | La Brisa Ranch #2 | 5,610 | 42732190 |
| 385474 | Mar 12, 1991 | Mar 12, 1991 | Pyle Petroleum | La Brisa Ranch #1 | 5,510 | 42732058 |
| 385474Amendment | Mar 12, 1991 | Mar 12, 1991 | Pyle Petroleum | La Brisa Ranch #1 | 5,510 | 42732058 |
| 385451 | Mar 12, 1991 | Mar 12, 1991 | Conoco Inc. | Slick, T. B. Est A #161 | 8,000 | 42732470 |
| 385208 | Mar 4, 1991 | Mar 4, 1991 | Starco Exploration, Inc. | Solis, M. "A" #1 | 3,762 | 42704256 |
| 384699 | Feb 25, 1991 | Feb 25, 1991 | Texas Independent Explor., Inc. | La Brisa R #1 R | 4,511 | 42703441 |
| 384697 | Feb 25, 1991 | Feb 25, 1991 | Texas Independent Explor., Inc. | La Brisa #2R | 4,180 | 42781497 |
| 384673 | Feb 25, 1991 | Feb 25, 1991 | Fina Oil & Chemical Company | Slick, T. B. Estate #102 | 12,000 | 42732435 |
| 384765 | Feb 19, 1991 | Feb 19, 1991 | Conoco Inc. | Slick, T.B. Est. A #162 | 8,000 | 42732469 |
| 384603 | Feb 19, 1991 | Feb 19, 1991 | Osborn Heirs Company | Fee #19 | 6,011 | 42700917 |
| 384578 | Feb 12, 1991 | Feb 12, 1991 | Union Pacific Resources Company | Guerra, F. B. Estate -B- #9 | 8,015 | 42732260 |
| 384541 | Feb 12, 1991 | Feb 12, 1991 | Texas Independent Explor., Inc. | Yzaguirre #2 | 8,500 | 42732468 |
| 384528 | Feb 11, 1991 | Feb 11, 1991 | Oryx Energy Company | Olivares, A. #22 | 10,400 | 42732467 |
| 384461 | Feb 11, 1991 | Feb 11, 1991 | OXY USA Inc. | Martinez B #7 | 4,562 | 42701123 |
| 384333 | Feb 11, 1991 | Feb 11, 1991 | Geodominion Petroleum | Gonzalez #1 | 4,550 | 42732466 |
| 384268 | Feb 11, 1991 | Feb 11, 1991 | Texas Independent Explor., Inc. | Yzaguirre #1U | 6,610 | 42732437 |
| 384291 | Feb 5, 1991 | Feb 5, 1991 | Oryx Energy Company | Garcia L & L -C- #7 | 8,800 | 42732465 |
| 384269 | Feb 5, 1991 | Feb 5, 1991 | Union Pacific Resources Company | Guerra, F. B. Estate -B- #13 | 8,400 | 42732300 |
| 384164 | Feb 4, 1991 | Feb 4, 1991 | Union Pacific Resources Company | Guerra, A. Jr. et al -A- #10 | 10,200 | 42732317 |
| 385385 | Jan 31, 1991 | Jan 31, 1991 | Exxon Corp. | McGill Bros. #489 | 9,100 | 42731664 |
| 385385Amendment | Jan 31, 1991 | Jan 31, 1991 | Exxon Corp. | McGill Bros. #489 | 9,100 | 42731664 |
| 383915 | Jan 28, 1991 | Jan 28, 1991 | Sanchez-O'Brien Oil & Gas Corp. | Sanchez, A. #1 | 5,000 | 42732464 |
| 383528 | Jan 25, 1991 | Jan 25, 1991 | Fina Oil & Chemical Company | Fina-Conoco Fee #14 | 8,600 | 42732428 |
| 383528Amendment | Jan 25, 1991 | Jan 25, 1991 | Fina Oil & Chemical Company | Fina-Conoco Fee #14 | 8,600 | 42732428 |
| 382602 | Jan 25, 1991 | Jan 25, 1991 | Breck Operating Corp. | Slick Estate #1 | 8,188 | 42701405 |
| 383728 | Jan 23, 1991 | Jan 23, 1991 | Fina Oil & Chemical Company | Fina-Conoco Fee #15 | 8,000 | 42732463 |
| 383712 | Jan 22, 1991 | Jan 22, 1991 | Minerals of Texas, Inc. | Garnett #1 | 3,400 | 42732462 |
| 381416 | Jan 18, 1991 | Jan 18, 1991 | Texas Independent Explor., Inc. | Slick, T. B. Estate #5353 | 7,500 | 42732450 |
| 383422 | Jan 17, 1991 | Jan 17, 1991 | Exxon Corp. | McGill Bros. #269 | 6,400 | 42700239 |
| 383539 | Jan 16, 1991 | Jan 16, 1991 | Oryx Energy Company | Slick Est. -C- #10 | 11,036 | 42732270 |
| 383123 | Jan 11, 1991 | Jan 11, 1991 | Hanson Minerals Co. | HMC/Tie la Brisa #3 | 7,600 | 42732422 |
| 382980 | Jan 11, 1991 | Jan 11, 1991 | Hanson Minerals Co. | Mayfair la Brisa #2 | 7,500 | 42732395 |
| 381037 | Jan 10, 1991 | Jan 10, 1991 | Cameron, Paul E., Jr., Inc. | Walker, W. E. #2262 | 6,000 | 42732447 |
| 382932 | Jan 9, 1991 | Jan 9, 1991 | Tesoro Expl. & Prod. Company | Texaco Fee #1 | 19,000 | 42732460 |
| 382955 | Jan 7, 1991 | Jan 7, 1991 | Texas Independent Explor., Inc. | Slick Estate #5399 | 5,700 | 42732404 |
| 382786 | Jan 4, 1991 | Jan 4, 1991 | Tesoro Expl. & Prod. Company | U.S.A.-Guerra #1 | 14,700 | 42732461 |
| 382786Amendment | Jan 4, 1991 | Jan 4, 1991 | Tesoro Expl. & Prod. Company | U.S.A.-Guerra Gas Unit B #1 | 14,700 | 42732461 |
| 382698 | Jan 2, 1991 | Jan 2, 1991 | Fina Oil & Chemical Company | Slick, T. B. Estate #81 | 13,000 | 42731668 |
| 382692 | Jan 2, 1991 | Jan 2, 1991 | Fina Oil & Chemical Company | Slick, T. B. Estate #82 | 13,000 | 42731693 |
| 382692Amendment | Jan 2, 1991 | Jan 2, 1991 | Fina Oil & Chemical Company | Slick, T. B. Estate #82 | 9,500 | 42731693 |
| 382587 | Jan 2, 1991 | Jan 2, 1991 | Exxon Corp. | Montalvo, N. R. #46 | 4,920 | 42730075 |
| 382505 | Jan 2, 1991 | Jan 2, 1991 | Alpha Omega Petroleum, Inc. | Heard, J.F.B. #3A | 6,000 | 42732459 |
| 382505Amendment | Jan 2, 1991 | Jan 2, 1991 | Alpha Omega Petroleum, Inc. | Heard, J.F.B. #3A | 6,000 | 42732459 |
| 382811 | Dec 31, 1990 | Dec 31, 1990 | Oryx Energy Company | Slick Est. -C- #9 | 8,750 | 42732213 |
| 382466 | Dec 19, 1990 | Dec 19, 1990 | Hanson Minerals Co. | State of Texas #9 | 8,500 | 42732457 |
| 382466Amendment | Dec 19, 1990 | Dec 19, 1990 | Hanson Minerals Co. | State of Texas #9 | 8,700 | 42732457 |
| 382465 | Dec 19, 1990 | Dec 19, 1990 | Hanson Minerals Co. | State of Texas #10 | 8,550 | 42732458 |
| 382465Amendment | Dec 19, 1990 | Dec 19, 1990 | Hanson Minerals Co. | State of Texas #10 | 8,500 | 42732458 |
| 382465Amendment | Dec 19, 1990 | Dec 19, 1990 | Hanson Minerals Co. | State of Texas #10 | 7,200 | 42732458 |
| 382176 | Dec 19, 1990 | Dec 19, 1990 | Carnes Exploration Company | Ricaby #1 | 1,741 | 42732417 |
| 382238 | Dec 18, 1990 | Dec 18, 1990 | San Patricio Corporation | Guerra, R. R. #1 | 3,800 | 42732455 |
| 382238Amendment | Dec 18, 1990 | Dec 18, 1990 | San Patricio Corporation | Guerra, R. R. #1 | 3,800 | 42732455 |
| 382490 | Dec 17, 1990 | Dec 17, 1990 | Wellmakers Inc. | Brock, J.D. "H" #1 A | 3,200 | 42732456 |
| 382212 | Dec 17, 1990 | Dec 17, 1990 | Hanson Minerals Co. | HMC/Tie la Brisa #1 | 9,000 | 42732357 |
| 382397 | Dec 14, 1990 | Dec 14, 1990 | Texas Independent Explor., Inc. | Slick Estates #5398 | 5,510 | 42732402 |
| 381428 | Dec 11, 1990 | Dec 11, 1990 | Conoco Inc. | Slick, T.B. "H" #85 | 6,100 | 42732385 |
| 380798 | Dec 10, 1990 | Dec 10, 1990 | Conoco Inc. | Slick, T. B. "B" #175 | 8,400 | 42732444 |