RIFLE WEST 7520

Oil · District 08 · Lease #51559

Operator: COG OPERATING LLC

Cum Oil

333k BBL

Cum Gas

665k MCF

casinghead

Wells

1

Production

2018-07 — 2026-04

Peak Month

2018-08

Production History

Cum Oil: 332,756 BBL Cum Gas: 665,373 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

21,199 BBL/mo

Di (annual)

262.3%

b-factor

1.1

EUR

555,536 BBL

R-squared

0.834

type

hyperbolic

Operator History (from monthly production reports)

2018-07 — 2026-07 COG OPERATING LLC 97 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HCOG OPERATING LLC112,5002018-01-02