DOYLE 708

Oil · District 10 · Lease #8475

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

132k BBL

Cum Gas

1.6M MCF

casinghead

Wells

2

Production

2011-11 — 2026-04

Peak Month

2011-12

Production History

Cum Oil: 132,336 BBL Cum Gas: 1,617,006 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,305 BBL/mo

Di (annual)

252.5%

b-factor

0.8

EUR

119,101 BBL

R-squared

0.833

type

hyperbolic

Operator History (from monthly production reports)

2022-02 — 2026-07 HIGHMARK ENERGY OPERATING, LLC 54 mo
2011-11 — 2022-01 EOG RESOURCES, INC. 123 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HHIGHMARK ENERGY OPERATING, LLC19,0002011-03-15
5HHIGHMARK ENERGY OPERATING, LLC29,0002011-02-24