NOLLEY, BERTHA, -A-

Oil · District 08 · Lease #21051

Operator: WESTPORT OIL AND GAS COMPANY, LP

Fields: NOLLEY (PENN)

Cum Oil

131k BBL

Cum Gas

79k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

1995-02

Production History

Cum Oil: 130,591 BBL Cum Gas: 78,546 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

571 BBL/mo

Di (annual)

3.6%

b-factor

0.0

EUR

159,282 BBL

R-squared

0.494

type

exponential

Operator History (from monthly production reports)

2025-11 — 2026-07 CRESCENT ENERGY OPERATING, LLC 9 mo

2022-01 — 2025-10 CONTANGO RESOURCES, LLC 46 mo

2021-02 — 2021-12 CONTANGO RESOURCES, INC. 11 mo

2019-09 — 2021-01 GRIZZLY OP OF DELAWARE, LLC 17 mo

2015-05 — 2019-08 VANGUARD OPERATING, LLC 52 mo

2012-04 — 2015-04 VANGUARD PERMIAN, LLC 37 mo

2008-01 — 2012-03 ENCORE ENERGY PARTNERS OPER LLC 51 mo

2005-12 — 2007-12 ENCORE OPERATING, L.P. 25 mo

2002-03 — 2005-11 WESTPORT OIL AND GAS COMPANY, LP 45 mo

1998-09 — 2002-02 BELCO ENERGY CORP. 42 mo

1995-01 — 1998-08 CODA ENERGY, INC. 44 mo

1993-01 — 1994-12 MOBIL PRODUCING TX. & N.M. INC. 24 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
7	42-003-30031	CRESCENT ENERGY OPERATING, LLC	1	14,455	1989-07-18
11	42-003-36195	CRESCENT ENERGY OPERATING, LLC	1	11,000	1988-06-30

NOLLEY, BERTHA, -A-

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