CRX YBAR D

Oil · District 01 · Lease #21063

Operator: CASTLEROCK EF OPERATING LLC

Cum Oil

299k BBL

Cum Gas

269k MCF

casinghead

Wells

1

Production

2022-11 — 2026-04

Peak Month

2023-04

Production History

Cum Oil: 298,932 BBL Cum Gas: 269,426 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

15,042 BBL/mo

Di (annual)

61.3%

b-factor

0.1

EUR

327,312 BBL

R-squared

0.785

type

hyperbolic

Operator History (from monthly production reports)

2022-11 — 2026-07 CASTLEROCK EF OPERATING LLC 45 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7HCASTLEROCK EF OPERATING LLC214,0002022-08-23