EB 37

Oil // district 10 // lease#35198

op: COSTILLA ENERGY, INC.

cum_oil

2k BBL

cum_gas

0 MCF

wells

1

production

1996-11 — 1998-03

peak_month

1996-11

-- production_history

cum_oil: 1,605 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

242 BBL/mo

Di (annual)

189.2%

b-factor

0.1

EUR

1,694 BBL

R-squared

0.501

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1COSTILLA PETROLEUM CORPORATION19,0001996-08-22
EOF // data source: Texas Railroad Commission // 2026