SHENANDOAH 639

Oil · District 8A · Lease #70954

Operator: RILEY PERMIAN OPERATING CO, LLC

Cum Oil

309k BBL

Cum Gas

1.1M MCF

casinghead

Wells

1

Production

2019-05 — 2026-04

Peak Month

2020-07

Production History

Cum Oil: 308,762 BBL Cum Gas: 1,098,103 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,608 BBL/mo

Di (annual)

70.2%

b-factor

1.2

EUR

641,770 BBL

R-squared

0.879

type

hyperbolic

Operator History (from monthly production reports)

2019-05 — 2026-07 RILEY PERMIAN OPERATING CO, LLC 87 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HRILEY PERMIAN OPERATING CO, LLC116,0002019-02-11