CAPROCK TXL

Oil · District 08 · Lease #35454

Operator: COSTILLA ENERGY, INC.

Cum Oil

26k BBL

Cum Gas

12k MCF

casinghead

Wells

2

Production

1997-05 — 1999-01

Peak Month

1997-08

Production History

Cum Oil: 26,088 BBL Cum Gas: 11,712 MCF

RRC production reported through Apr 2026 · recent months incomplete

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

Operator History (from monthly production reports)

1998-12 — 1999-03 CONCHO RESOURCES INC. 4 mo
1997-05 — 1998-11 COSTILLA ENERGY, INC. 19 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CONCHO RESOURCES INC.410,5002009-02-20
2JCONCHO RESOURCES INC.210,5001998-02-05