EDWARDS 12

Oil // district 10 // lease#34435

op: COSTILLA PETROLEUM CORPORATION

cum_oil

29k BBL

cum_gas

0 MCF

wells

1

production

1995-02 — 2000-01

peak_month

1995-04

-- production_history

cum_oil: 28,832 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,309 BBL/mo

Di (annual)

182.5%

b-factor

0.3

EUR

21,623 BBL

R-squared

0.892

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1COSTILLA PETROLEUM CORPORATION29,5001996-05-24
EOF // data source: Texas Railroad Commission // 2026