HILL 433

Oil · District 10 · Lease #8146

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

168k BBL

Cum Gas

1.6M MCF

casinghead

Wells

4

Production

2010-04 — 2026-04

Peak Month

2011-01

Production History

Cum Oil: 167,774 BBL Cum Gas: 1,646,257 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,492 BBL/mo

Di (annual)

15.3%

b-factor

0.0

EUR

117,296 BBL

R-squared

0.348

type

exponential

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

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6HHIGHMARK ENERGY OPERATING, LLC19,0002010-01-29
7HHIGHMARK ENERGY OPERATING, LLC19,0002010-01-29
4HHIGHMARK ENERGY OPERATING, LLC19,0002009-11-04
5HHIGHMARK ENERGY OPERATING, LLC210,0002009-04-28