DEGUELLO

Oil · District 7C · Lease #15431

Operator: VANGUARD PERMIAN, LLC

Cum Oil

264k BBL

Cum Gas

230k MCF

casinghead

Wells

1

Production

2003-06 — 2025-02

Peak Month

2003-08

Production History

Cum Oil: 263,657 BBL Cum Gas: 229,833 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,194 BBL/mo

Di (annual)

14.5%

b-factor

0.0

EUR

263,617 BBL

R-squared

0.444

type

exponential

Operator History (from monthly production reports)

2014-09 — 2026-07 DISCOVERY NATURAL RESOURCES LLC 143 mo
2011-05 — 2014-08 FIML NATURAL RESOURCES, LLC 40 mo
2008-03 — 2011-04 VANGUARD PERMIAN, LLC 38 mo
2003-06 — 2008-02 APACHE CORPORATION 57 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DISCOVERY NATURAL RESOURCES LLC110,0002003-04-16