TREADAWAY UNIT

Oil · District 8A · Lease #63653

Operator: VANGUARD PERMIAN, LLC

Cum Oil

70k BBL

Cum Gas

2k MCF

casinghead

Wells

1

Production

1993-01 — 2009-04

Peak Month

1998-03

Production History

Cum Oil: 69,560 BBL Cum Gas: 2,360 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,026 BBL/mo

Di (annual)

26.1%

b-factor

0.0

EUR

47,151 BBL

R-squared

0.517

type

exponential

Operator History (from monthly production reports)

2015-05 — 2015-06 VANGUARD OPERATING, LLC 2 mo
2011-05 — 2015-04 VANGUARD PERMIAN, LLC 48 mo
2005-07 — 2011-04 BLUE RIDGE RESOURCES, LLC 70 mo
1997-05 — 2005-06 PETRA OLEUM CORP. 98 mo
1997-02 — 1997-04 COSTILLA ENERGY, INC. 3 mo
1993-01 — 1997-01 COSTILLA PETROLEUM CORPORATION 49 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1BLUE RIDGE RESOURCES, LLC212,0201981-12-31