EB 37

Oil · District 08 · Lease #35198

Operator: COSTILLA ENERGY, INC.

Cum Oil

2k BBL

Cum Gas

3k MCF

casinghead

Wells

1

Production

1996-11 — 1997-11

Peak Month

1996-11

Production History

Cum Oil: 1,605 BBL Cum Gas: 3,438 MCF

RRC production reported through Apr 2026 · recent months incomplete

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

Operator History (from monthly production reports)

1996-11 — 1998-03 COSTILLA ENERGY, INC. 17 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1COSTILLA ENERGY INC.19,0001996-08-22