FOSTER, R. T. JR. 28

Oil · District 08 · Lease #39710

Operator: REMNANT OIL OPERATING, LLC

Fields: CONGER, SW (WOLFCAMP)

Cum Oil

12k BBL

Cum Gas

1k MCF

casinghead

Wells

2

Production

2009-10 — 2018-01

Peak Month

2009-11

Production History

Cum Oil: 12,116 BBL Cum Gas: 1,343 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

505 BBL/mo

Di (annual)

89.4%

b-factor

0.1

EUR

7,511 BBL

R-squared

0.730

type

hyperbolic

Operator History (from monthly production reports)

2017-11 — 2025-06 ARCH OIL & GAS, LLC 92 mo

2016-10 — 2017-10 7S OIL & GAS, LLC 13 mo

2016-06 — 2016-09 REMNANT OIL OPERATING, LLC 4 mo

2009-10 — 2016-05 LEGACY RESERVES OPERATING LP 80 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-431-30285	ARCH OIL & GAS LLC	1	7,420	2010-06-02
4	42-431-30708	ARCH OIL & GAS LLC	2	8,000	2009-10-20