CAPROCK TXL

Oil · District 08 · Lease #35630

Operator: COSTILLA ENERGY, INC.

Cum Oil

4k BBL

Cum Gas

3k MCF

casinghead

Wells

1

Production

1998-01 — 1998-11

Peak Month

1998-02

Production History

Cum Oil: 3,957 BBL Cum Gas: 2,629 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

915 BBL/mo

Di (annual)

971.9%

b-factor

1.0

EUR

7,049 BBL

R-squared

0.893

type

hyperbolic

Operator History (from monthly production reports)

1998-12 — 1999-04 CONCHO RESOURCES INC. 5 mo
1998-01 — 1998-11 COSTILLA ENERGY, INC. 11 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2JCONCHO RESOURCES INC.210,5001998-02-05