CUMBERLAND

Oil · District 08 · Lease #40642

Operator: WINDSOR PERMIAN LLC

Cum Oil

196k BBL

Cum Gas

592k MCF

casinghead

Wells

6

Production

2010-07 — 2026-04

Peak Month

2012-07

Production History

Cum Oil: 195,682 BBL Cum Gas: 591,799 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,705 BBL/mo

Di (annual)

41.7%

b-factor

0.3

EUR

150,669 BBL

R-squared

0.840

type

hyperbolic

Operator History (from monthly production reports)

2012-07 — 2026-07 DIAMONDBACK E&P LLC 169 mo
2010-07 — 2012-06 WINDSOR PERMIAN LLC 24 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3407DIAMONDBACK E&P LLC310,9062014-01-08
3410DIAMONDBACK E&P LLC211,2252014-01-08
3415DIAMONDBACK E&P LLC111,5002012-02-28
3413DIAMONDBACK E&P LLC111,2002011-09-28
3402DIAMONDBACK E&P LLC211,4292011-07-12
3412DIAMONDBACK E&P LLC310,7002011-07-12