| 1990-05-16 | 373483 | 42-505-32685 | GUTIERREZ #2 | AMAX OIL & GAS INC. | DRILL | 9,500 | |
| 1990-05-16 | 373433 | 42-505-32680 | DE GARCIA, AMADA C. #Z 1GA | ZAPATA MINERALS, INC. | DRILL | 500 | |
| 1990-05-16 | 373432 | 42-505-32681 | DE GARCIA, AMADA C. #Z 2GA | ZAPATA MINERALS, INC. | DRILL | 500 | |
| 1990-05-16 | 373431 | 42-505-32682 | DE GARCIA, AMADA C. #Z 3GA | ZAPATA MINERALS, INC. | DRILL | 500 | |
| 1990-05-16 | 373430 | 42-505-32683 | DE GARCIA, AMADA C. #Z 4GA | ZAPATA MINERALS, INC. | DRILL | 500 | |
| 1990-05-11 | 373272 | 42-505-32679 | GUTIERREZ, HIGINIO #1 | NATURAL RESERVES GROUP, INC. | DRILL | 10,500 | |
| 1990-05-10 | 373174 | 42-505-32677 | J. G. BENAVIDES GAS UNIT #3 | ENRON OIL & GAS COMPANY | DRILL | 10,200 | |
| 1990-05-10 | 373174 | 42-505-32677 | J. G. BENAVIDES GAS UNIT #3 | ENRON OIL & GAS COMPANY | DRILL | 10,200 | |
| 1990-05-10 | 373173 | 42-505-32678 | VELA, HERMINIA #1 | ENRON OIL & GAS COMPANY | DRILL | 12,300 | |
| 1990-05-07 | 373043 | 42-505-32676 | J.O.D. #3 | TRANSAMERICAN NATURAL GAS CORP. | DRILL | 11,700 | |
| 1990-05-03 | 372842 | 42-505-32675 | URIBE #2 | TRANSAMERICAN NATURAL GAS CORP. | DRILL | 9,800 | |
| 1990-04-26 | 372543 | 42-505-32674 | RAMIREZ, FEDERICO #3 | HOLDEN ENERGY CORPORATION | DRILL | 17,500 | |
| 1990-04-17 | 372280 | 42-505-32673 | GUTIERREZ #3 | AMAX OIL & GAS INC. | DRILL | 9,400 | |
| 1990-04-17 | 372280 | 42-505-32673 | GUTIERREZ #3 | AMAX OIL & GAS INC. | DRILL | 9,576 | |
| 1990-04-16 | 372114 | 42-505-32672 | LA PERLA #131 | TRANSAMERICAN NATURAL GAS CORP. | DRILL | 10,500 | |
| 1990-04-11 | 371989 | 42-505-32671 | RAMIREZ, FEDERICO #2 | HOLDEN ENERGY CORPORATION | DRILL | 12,100 | |
| 1990-04-11 | 371989 | 42-505-32671 | RAMIREZ, FEDERICO #2 | HOLDEN ENERGY CORPORATION | DRILL | 12,100 | |
| 1990-04-10 | 371914 | 42-505-32670 | LA PERLA #130 | TRANSAMERICAN NATURAL GAS CORP. | DRILL | 10,500 | |
| 1990-04-10 | 371913 | 42-505-32669 | GARZA, L. "B" #3 | TRANSAMERICAN NATURAL GAS CORP. | DRILL | 11,600 | |
| 1990-04-06 | 371784 | 42-505-32667 | VIDAURRI, R. ET AL #18 | CHEVRON U. S. A. INC. | DRILL | 9,200 | |
| 1990-04-05 | 371783 | 42-505-32666 | VIDAURRI, R. ET AL #17 | CHEVRON U. S. A. INC. | DRILL | 9,200 | |
| 1990-04-05 | 371783 | 42-505-32666 | VIDAURRI, R. ET AL #17 | CHEVRON U. S. A. INC. | DRILL | 9,200 | |
| 1990-04-05 | 371782 | 42-505-32668 | VIDAURRI, R. ET AL #19 | CHEVRON U. S. A. INC. | DRILL | 9,200 | |
| 1990-04-05 | 371782 | 42-505-32668 | VIDAURRI, R. ET AL #19 | CHEVRON U. S. A. INC. | DRILL | 9,200 | |
| 1990-04-05 | 371782 | 42-505-32668 | VIDAURRI, R. ET AL #19 | CHEVRON U. S. A. INC. | DRILL | 7,881 | |
| 1990-04-04 | 371679 | 42-505-32298 | DE GRACIA HEIRS #1 | KILLAM OIL COMPANY | RECOMP | 8,170 | |
| 1990-04-03 | 371788 | 42-505-32665 | SINGER B #1 | ENRON OIL & GAS COMPANY | DRILL | 12,000 | |
| 1990-04-03 | 371788 | 42-505-32665 | SINGER B #1 | ENRON OIL & GAS COMPANY | DRILL | 12,000 | |
| 1990-03-29 | 371614 | 42-505-32664 | ABEL VELA-STATE GAS UNIT #A 3 | PENNZOIL EXPLORATION & PROD. CO. | DRILL | 9,000 | |
| 1990-03-28 | 371565 | 42-505-32663 | DE BARBERIO #3 | ENRON OIL & GAS COMPANY | DRILL | 13,000 | |
| 1990-03-28 | 371565 | 42-505-32663 | DE BARBERIO #3 | ENRON OIL & GAS COMPANY | DRILL | 13,000 | |
| 1990-03-28 | 371389 | 42-505-31719 | WHITTIER, L. ESTATE #1 | ENRON OIL & GAS COMPANY | RECOMP | 8,470 | |
| 1990-03-28 | 371389 | 42-505-31719 | WHITTIER, L. ESTATE #1 | ENRON OIL & GAS COMPANY | RECOMP | 8,470 | |
| 1990-03-27 | 371495 | 42-505-32662 | ASCHE #21 | TRANSAMERICAN NATURAL GAS CORP. | DRILL | 11,500 | |
| 1990-03-27 | 371372 | 42-505-32659 | ARCO MARSHALL, S. G. #19 | ARCO OIL & GAS CO. | DRILL | 10,600 | |
| 1990-03-27 | 371371 | 42-505-32660 | MARTINEZ, M. #9 | ARCO OIL & GAS CO. | DRILL | 10,800 | |
| 1990-03-26 | 371477 | 42-505-32329 | ALEXANDER, M. M. #1 | ENRON OIL & GAS COMPANY | RECOMP | 9,700 | |
| 1990-03-26 | 371408 | 42-505-32661 | GARZA FAMILY TRUST #4 | BAY ROCK OPERATING COMPANY | DRILL | 2,650 | |
| 1990-03-19 | 371074 | 42-505-32658 | CAVAZOS, M. V. #1 | MARATHON OIL COMPANY | DRILL | 15,500 | |
| 1990-03-16 | 371073 | 42-505-32657 | JENNINGS #59 | PENNZOIL EXPLORATION & PROD. CO. | DRILL | 14,000 | |
| 1990-03-16 | 371073 | 42-505-32657 | JENNINGS #59 | PENNZOIL EXPLORATION & PROD. CO. | DRILL | 14,000 | |
| 1990-03-15 | 371026 | 42-505-32656 | EL EBANITO LAND CO., LTD. #1 | ENRON OIL & GAS COMPANY | DRILL | 9,500 | |
| 1990-03-15 | 371026 | 42-505-32656 | EL EBANITO LAND CO., LTD. #1 | ENRON OIL & GAS COMPANY | DRILL | 9,500 | |
| 1990-03-13 | 370870 | 42-505-32654 | LAS PRIMAS #1 | KILLAM OIL COMPANY | DRILL | 9,500 | |
| 1990-03-13 | 370748 | 42-505-32653 | DODIER, J. O. #1 | ENRON OIL & GAS COMPANY | DRILL | 10,000 | |
| 1990-03-13 | 370732 | 42-505-32652 | TREVINO "B" #3 | TXO PRODUCTION CORP. | DRILL | 10,000 | |
| 1990-03-12 | 370880 | 42-505-32655 | VELA-CUELLAR #3 | ENRON OIL & GAS COMPANY | DRILL | 10,000 | |
| 1990-03-12 | 370880 | 42-505-32655 | VELA-CUELLAR #3 | ENRON OIL & GAS COMPANY | DRILL | 11,000 | |
| 1990-03-06 | 370565 | 42-505-32651 | HAYNES #10 | TRANSAMERICAN NATURAL GAS CORP. | DRILL | 14,500 | |
| 1990-03-05 | 370432 | 42-505-32650 | LA PERLA #119 | TRANSAMERICAN NATURAL GAS CORP. | DRILL | 10,500 | |