Y-BAR EAST UNIT A

Oil · District 01 · Lease #18270

Operator: MURPHY EXPL. & PROD. CO. - USA

Cum Oil

92k BBL

Cum Gas

137k MCF

casinghead

Wells

1

Production

2014-06 — 2024-10

Peak Month

2014-08

Production History

Cum Oil: 92,361 BBL Cum Gas: 137,259 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,360 BBL/mo

Di (annual)

735.0%

b-factor

1.3

EUR

92,261 BBL

R-squared

0.631

type

hyperbolic

Operator History (from monthly production reports)

2022-08 — 2026-07 CASTLEROCK EF OPERATING LLC 48 mo
2014-06 — 2022-07 MURPHY EXPL. & PROD. CO. - USA 98 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HCASTLEROCK EF OPERATING LLC211,0002014-04-28