< leases

SHELLEY

Oil · District 08 · Lease #38011

Operator: WINDSOR PERMIAN LLC

Fields: SALLIE ANN (SPRABERRY-WOLFCAMP)

Cum Oil

184k BBL

Cum Gas

559k MCF

casinghead

Wells

2

Production

2006-12 — 2022-05

Peak Month

2007-05

Production History

Cum Oil: 183,840 BBL Cum Gas: 558,806 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

15,084 BBL/mo

Di (annual)

157.4%

b-factor

0.4

EUR

190,759 BBL

R-squared

0.883

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
2008-01 — 2010-02 WINDSOR ENERGY GROUP, L.L.C. 26 mo
2007-05 — 2007-12 EXL PETROLEUM, LP 8 mo
2006-12 — 2007-04 CAMBRIAN MANAGEMENT LTD 5 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-135-39160DIAMONDBACK E&P LLC211,0002006-07-27
242-329-35589DIAMONDBACK E&P LLC211,0002006-07-27