ROGERS 385

Oil · District 10 · Lease #8528

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

178k BBL

Cum Gas

1.4M MCF

casinghead

Wells

2

Production

2012-04 — 2026-04

Peak Month

2012-06

Production History

Cum Oil: 178,451 BBL Cum Gas: 1,396,366 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,832 BBL/mo

Di (annual)

103.1%

b-factor

0.9

EUR

155,527 BBL

R-squared

0.499

type

hyperbolic

Operator History (from monthly production reports)

2022-02 — 2026-07 HIGHMARK ENERGY OPERATING, LLC 54 mo
2012-04 — 2022-01 EOG RESOURCES, INC. 118 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HHIGHMARK ENERGY OPERATING, LLC19,0002011-10-24
3HHIGHMARK ENERGY OPERATING, LLC19,0002011-10-24