Y-BAR UNIT A

Oil · District 01 · Lease #17978

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

Cum Oil

339k BBL

Cum Gas

396k MCF

casinghead

Wells

3

Production

2014-03 — 2026-04

Peak Month

2015-05

Production History

Cum Oil: 338,727 BBL Cum Gas: 395,639 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

10,676 BBL/mo

Di (annual)

62.3%

b-factor

0.3

EUR

292,621 BBL

R-squared

0.881

type

hyperbolic

Operator History (from monthly production reports)

2022-08 — 2026-07 CASTLEROCK EF OPERATING LLC 48 mo
2014-03 — 2022-07 MURPHY EXPL. & PROD. CO. - USA 101 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HCASTLEROCK EF OPERATING LLC29,8002014-02-13
2HCASTLEROCK EF OPERATING LLC19,8002013-05-08
1HCASTLEROCK EF OPERATING LLC19,8002013-05-06