APPEL 438

Oil · District 10 · Lease #8145

Operator: MCCLURE OIL COMPANY, INC.

Cum Oil

350k BBL

Cum Gas

3.7M MCF

casinghead

Wells

3

Production

2010-02 — 2026-04

Peak Month

2010-05

Production History

Cum Oil: 350,090 BBL Cum Gas: 3,749,438 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

20,617 BBL/mo

Di (annual)

148.8%

b-factor

0.6

EUR

383,364 BBL

R-squared

0.937

type

hyperbolic

Operator History (from monthly production reports)

2022-02 — 2026-07 HIGHMARK ENERGY OPERATING, LLC 54 mo
2010-04 — 2022-01 EOG RESOURCES, INC. 142 mo
2010-02 — 2010-03 MCCLURE OIL COMPANY, INC. 2 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7HHIGHMARK ENERGY OPERATING, LLC19,0002010-05-21
6HHIGHMARK ENERGY OPERATING, LLC19,0002009-12-04
5HHIGHMARK ENERGY OPERATING, LLC19,0002009-05-14