CHADBOURNE RANCH 469

Oil · District 7C · Lease #13618

Operator: VANGUARD PERMIAN, LLC

Fields: FORT CHADBOURNE (GARDNER)

Cum Oil

3k BBL

Cum Gas

6 MCF

casinghead

Wells

1

Production

1994-04 — 1995-01

Peak Month

1994-05

Production History

Cum Oil: 2,772 BBL Cum Gas: 6 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

662 BBL/mo

Di (annual)

407.1%

b-factor

0.0

EUR

1,969 BBL

R-squared

0.760

type

exponential

Operator History (from monthly production reports)

2020-08 — 2026-07 L.C.S. PRODUCTION COMPANY 72 mo

2019-09 — 2020-07 GRIZZLY OP OF DELAWARE, LLC 11 mo

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

2011-08 — 2015-04 VANGUARD PERMIAN, LLC 45 mo

2006-08 — 2011-07 ENERVEST OPERATING, L.L.C. 60 mo

2004-02 — 2006-07 MAK-J ENERGY PARTNERS(TX),LTD. 30 mo

2001-10 — 2004-01 ST. MARY ENERGY COMPANY 28 mo

2000-07 — 2001-09 PITTENCRIEFF AMERICA, INC. 15 mo

1998-09 — 2000-06 BELCO ENERGY CORP. 22 mo

1994-04 — 1998-08 CODA ENERGY, INC. 53 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-399-34308	L.C.S. PRODUCTION COMPANY	2	5,800	2000-07-26

CHADBOURNE RANCH 469

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 (1)

Production History