HEISMAN

Oil · District 06 · Lease #15071

Operator: GMX RESOURCES INC.

Cum Oil

25k BBL

Cum Gas

332k MCF

casinghead

Wells

1

Production

2010-05 — 2022-03

Peak Month

2010-06

Production History

Cum Oil: 25,270 BBL Cum Gas: 331,524 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

966 BBL/mo

Di (annual)

54.4%

b-factor

0.2

EUR

26,556 BBL

R-squared

0.824

type

hyperbolic

Operator History (from monthly production reports)

2019-10 — 2026-07 ENPOWER RESOURCES INC. 82 mo
2012-09 — 2019-09 EAST TEXAS EXPLORATION, LLC 85 mo
2010-05 — 2012-08 GMX RESOURCES INC. 28 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5AGMX RESOURCES INC.17,5002008-06-21