UNIVERSITY -7-

Oil · District 08 · Lease #20074

Operator: WESTPORT OIL AND GAS COMPANY, LP

Fields: HUTEX (DEVONIAN)

Cum Oil

365k BBL

Cum Gas

2k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

1997-06

Production History

Cum Oil: 365,117 BBL Cum Gas: 2,009 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,419 BBL/mo

Di (annual)

3.9%

b-factor

0.0

EUR

373,461 BBL

R-squared

0.353

type

exponential

Operator History (from monthly production reports)

2017-07 — 2026-07 DIAMONDBACK E&P LLC 109 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 (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-003-35079	DIAMONDBACK E&P LLC	1	12,700	1985-08-12
1	42-003-10765	DIAMONDBACK E&P LLC	--	--	--

UNIVERSITY -7-

Production HistoryBeta Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]

Decline Curve Analysis

Operator History (from monthly production reports)

Wells (2)

Production History