FOSTER

Oil · District 08 · Lease #40747

Operator: RSP PERMIAN, LLC

Cum Oil

41k BBL

Cum Gas

69k MCF

casinghead

Wells

1

Production

2010-12 — 2020-07

Peak Month

2011-09

Production History

Cum Oil: 40,658 BBL Cum Gas: 69,182 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,699 BBL/mo

Di (annual)

622.8%

b-factor

1.5

EUR

44,364 BBL

R-squared

0.573

type

hyperbolic

Operator History (from monthly production reports)

2018-08 — 2023-10 COG OPERATING LLC 63 mo
2010-12 — 2018-07 RSP PERMIAN, LLC 92 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
301COG OPERATING LLC212,0002010-05-06