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Oil · District 01 · Lease #21649

Operator: CASTLEROCK EF OPERATING LLC

Cum Oil

108k BBL

Cum Gas

92k MCF

casinghead

Wells

1

Production

2024-09 — 2026-04

Peak Month

2024-10

Production History

Cum Oil: 107,885 BBL Cum Gas: 91,839 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

17,109 BBL/mo

Di (annual)

690.6%

b-factor

1.2

EUR

258,155 BBL

R-squared

0.965

type

hyperbolic

Operator History (from monthly production reports)

2024-09 — 2026-07 CASTLEROCK EF OPERATING LLC 23 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
180HCASTLEROCK EF OPERATING LLC210,0002024-03-20