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SHELLEY

Oil · District 08 · Lease #39623

Operator: WINDSOR PERMIAN LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

118k BBL

Cum Gas

450k MCF

casinghead

Wells

5

Production

2008-10 — 2026-04

Peak Month

2008-12

Production History

Cum Oil: 117,904 BBL Cum Gas: 450,107 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,743 BBL/mo

Di (annual)

353.4%

b-factor

1.1

EUR

78,286 BBL

R-squared

0.791

type

hyperbolic

Operator History (from monthly production reports)

2022-12 — 2026-07 DIAMONDBACK E&P LLC 44 mo
2022-02 — 2022-11 FIREBIRD ENERGY LLC 10 mo
2021-04 — 2022-01 CHEVRON U. S. A. INC. 10 mo
2012-07 — 2021-03 DIAMONDBACK E&P LLC 105 mo
2010-03 — 2012-06 WINDSOR PERMIAN LLC 28 mo
2008-10 — 2010-02 WINDSOR ENERGY GROUP, L.L.C. 17 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
742-135-41311DIAMONDBACK E&P LLC110,9002011-09-28
542-135-40188DIAMONDBACK E&P LLC210,4032010-03-09
642-329-36498DIAMONDBACK E&P LLC110,2502010-03-09
342-135-39480DIAMONDBACK E&P LLC110,3502008-04-21
442-135-39481DIAMONDBACK E&P LLC110,3502008-04-21