WATERS RANCH 330

Oil · District 10 · Lease #8459

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

151k BBL

Cum Gas

1.8M MCF

casinghead

Wells

2

Production

2011-09 — 2026-04

Peak Month

2012-02

Production History

Cum Oil: 151,190 BBL Cum Gas: 1,780,210 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,197 BBL/mo

Di (annual)

86.4%

b-factor

0.6

EUR

160,370 BBL

R-squared

0.865

type

hyperbolic

Operator History (from monthly production reports)

2022-02 — 2026-07 HIGHMARK ENERGY OPERATING, LLC 54 mo
2011-09 — 2022-01 EOG RESOURCES, INC. 125 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HHIGHMARK ENERGY OPERATING, LLC19,0002011-10-28
1HHIGHMARK ENERGY OPERATING, LLC19,0002011-06-28