UNIVERSITY -37-

Oil · District 08 · Lease #12530

Operator: WESTPORT OIL AND GAS COMPANY, LP

Cum Oil

253k BBL

Cum Gas

37k MCF

casinghead

Wells

3

Production

1993-01 — 2016-06

Peak Month

2002-04

Production History

Cum Oil: 253,106 BBL Cum Gas: 36,506 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

754 BBL/mo

Di (annual)

20.5%

b-factor

0.0

EUR

44,015 BBL

R-squared

0.360

type

exponential

Operator History (from monthly production reports)

2017-07 — 2018-10 DIAMONDBACK E&P LLC 16 mo
2015-05 — 2017-06 VANGUARD OPERATING, LLC 26 mo
2012-04 — 2015-04 VANGUARD PERMIAN, LLC 37 mo
2009-09 — 2012-03 ENCORE ENERGY PARTNERS OPER LLC 31 mo
2005-12 — 2009-08 ENCORE OPERATING, L.P. 45 mo
2002-03 — 2005-11 WESTPORT OIL AND GAS COMPANY, LP 45 mo
1998-09 — 2002-02 BELCO ENERGY CORP. 42 mo
1998-03 — 1998-08 CODA ENERGY, INC. 6 mo
1996-02 — 1998-02 ENERVEST OPERATING, L.L.C. 25 mo
1993-01 — 1996-01 CONOCO INC. 37 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC113,8002008-10-27
242-003-01018DIAMONDBACK E&P LLC------
342-003-01022DIAMONDBACK E&P LLC------