UNIVERSITY -143-

Oil · District 08 · Lease #11775

Operator: HENRY PETROLEUM CORP.

Cum Oil

14k BBL

Cum Gas

16k MCF

casinghead

Wells

4

Production

1993-01 — 1995-01

Peak Month

1993-01

Production History

Cum Oil: 14,130 BBL Cum Gas: 15,809 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

730 BBL/mo

Di (annual)

34.0%

b-factor

0.0

EUR

25,711 BBL

R-squared

0.376

type

exponential

Operator History (from monthly production reports)

1993-01 — 1995-04 HENRY PETROLEUM CORP. 28 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6HIGHMARK ENERGY OPERATING, LLC28,7001993-03-01
242-003-05348HIGHMARK ENERGY OPERATING, LLC------
442-003-05350HIGHMARK ENERGY OPERATING, LLC------
542-003-05351HIGHMARK ENERGY OPERATING, LLC------