SHEPHERD "703"

Oil · District 8A · Lease #70163

Operator: VANGUARD PERMIAN, LLC

Fields: WASSON

Cum Oil

45k BBL

Cum Gas

51k MCF

casinghead

Wells

2

Production

2011-01 — 2022-02

Peak Month

2011-05

Production History

Cum Oil: 45,386 BBL Cum Gas: 51,248 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,462 BBL/mo

Di (annual)

205.1%

b-factor

0.8

EUR

48,210 BBL

R-squared

0.716

type

hyperbolic

Operator History (from monthly production reports)

2020-06 — 2022-09 RILEY PERMIAN OPERATING CO, LLC 28 mo
2019-09 — 2020-05 GRIZZLY OP OF DELAWARE, LLC 9 mo
2015-05 — 2019-08 VANGUARD OPERATING, LLC 52 mo
2011-01 — 2015-04 VANGUARD PERMIAN, LLC 52 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1RILEY PERMIAN OPERATING CO, LLC311,1002022-03-23
2RILEY PERMIAN OPERATING CO, LLC512,0002022-03-23