CLARKSVILLE COTTON VALLEY UNIT

Oil // district 6 // lease#12914

op: ST. MARY LAND & EXPLORATION CO.

cum_oil

5.0M BBL

cum_gas

0 MCF

wells

37

production

1993-01 — 2026-03

peak_month

1997-03

-- production_history

cum_oil: 4,991,486 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

55,257 BBL/mo

Di (annual)

36.4%

b-factor

0.7

EUR

4,098,672 BBL

R-squared

0.961

type

hyperbolic

-- wells (37)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1801SANTA FE MINERALS, INC.25,7002014-02-10
1310BASA RESOURCES, INC.15,9002013-09-20
1402AMOCO PRODUCTION CO-RATLIFF CITY25,4751997-03-28
1501AMOCO PRODUCTION CO-RATLIFF CITY15,7001997-02-11
2102AMOCO PRODUCTION CO-RATLIFF CITY15,8001997-02-11
1602AMOCO PRODUCTION CO-RATLIFF CITY15,7001996-12-06
1309AMOCO PRODUCTION CO-RATLIFF CITY25,4601996-08-23
2002AMOCO PRODUCTION CO-RATLIFF CITY25,6601996-08-23
2206AMOCO PRODUCTION CO-RATLIFF CITY25,6251996-08-23
2205AMOCO PRODUCTION COMPANY15,6501996-08-15
1903AMOCO PRODUCTION CO-RATLIFF CITY25,6401996-08-14
201AMOCO PRODUCTION CO-RATLIFF CITY25,5301996-08-14
1308AMOCO PRODUCTION COMPANY15,6501996-07-24
1306AMOCO PRODUCTION COMPANY15,6501996-07-19
1307AMOCO PRODUCTION COMPANY15,6501996-07-19
1902AMOCO PRODUCTION COMPANY15,6501996-07-19
2101AMOCO PRODUCTION COMPANY15,6501996-07-03
802SFM HOLDINGS, INC.25,7501994-12-21
A 1WSSFM HOLDINGS, INC.13,8001994-02-07
1305SFM HOLDINGS, INC.26,0001993-08-24
2204SANTA FE MINERALS, INC.16,0001989-05-31
2203SANTA FE MINERALS, INC.15,9001989-05-02
2202SANTA FE MINERALS, INC.15,8001989-02-02
1WSSANTA FE MINERALS, INC.15,8001989-01-19
2201SANTA FE MINERALS, INC.16,0001988-10-24
2001SANTA FE MINERALS, INC.15,8001988-06-01
1304SANTA FE MINERALS, INC.16,0001988-05-27
1601SANTA FE MINERALS, INC.15,5501988-05-18
1303SANTA FE MINERALS, INC.15,8001988-03-31
101SANTA FE MINERALS, INC.15,7001987-09-29
1901SANTA FE MINERALS, INC.16,0001987-09-23
601SANTA FE MINERALS, INC.15,7501987-02-18
1401SANTA FE MINERALS, INC.16,2001987-01-29
1302SANTA FE MINERALS, INC.16,5001986-11-24
701SANTA FE MINERALS, INC.25,8001986-11-19
1301SANTA FE MINERALS, INC.15,8001986-06-27
801SANTA FE MINERALS, INC.17,0001985-11-12
EOF // data source: Texas Railroad Commission // 2026