MONTGOMERY, R. "5"

Oil · District 09 · Lease #31365

Operator: PETEX

Cum Oil

77k BBL

Cum Gas

198 MCF

casinghead

Wells

1

Production

2007-09 — 2025-12

Peak Month

2008-04

Production History

Cum Oil: 77,371 BBL Cum Gas: 198 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

537 BBL/mo

Di (annual)

5.3%

b-factor

0.0

EUR

112,939 BBL

R-squared

0.592

type

exponential

Operator History (from monthly production reports)

2018-10 — 2026-07 PETEX 94 mo
2007-09 — 2018-09 ENDEAVOR ENERGY RESOURCES L.P. 133 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HPETEX25,0002007-03-28