Y-BAR WEST UNIT A

Oil · District 01 · Lease #18287

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

Cum Oil

170k BBL

Cum Gas

276k MCF

casinghead

Wells

1

Production

2014-06 — 2026-03

Peak Month

2014-08

Production History

Cum Oil: 169,600 BBL Cum Gas: 275,866 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

12,199 BBL/mo

Di (annual)

137.8%

b-factor

0.3

EUR

151,651 BBL

R-squared

0.874

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 LLC110,0002014-03-24