GARY 36-A

Oil · District 08 · Lease #35351

Operator: COSTILLA ENERGY, INC.

Cum Oil

708 BBL

Cum Gas

3k MCF

casinghead

Wells

1

Production

1997-04 — 1999-04

Peak Month

1997-05

Production History

Cum Oil: 708 BBL Cum Gas: 2,725 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

157 BBL/mo

Di (annual)

481.0%

b-factor

0.4

EUR

625 BBL

R-squared

0.615

type

hyperbolic

Operator History (from monthly production reports)

1998-12 — 1999-06 CONCHO RESOURCES INC. 7 mo
1997-04 — 1998-11 COSTILLA ENERGY, INC. 20 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2CONCHO RESOURCES INC.110,5001997-02-14