CAPROCK TXL

Oil // district 10 // lease#35454

op: COSTILLA ENERGY, INC.

cum_oil

26k BBL

cum_gas

0 MCF

wells

2

production

1997-05 — 1999-03

peak_month

1997-08

-- production_history

cum_oil: 26,088 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,120 BBL/mo

Di (annual)

807.6%

b-factor

1.2

EUR

41,974 BBL

R-squared

0.756

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1JONES, L. E. OPERATING, INC.410,5002009-02-20
2JCOSTILLA ENERGY, INC.210,5001998-02-05
EOF // data source: Texas Railroad Commission // 2026