HASEL28 P1 UNIT 1

Oil · District 7C · Lease #19676

Operator: COG OPERATING LLC

Cum Oil

301k BBL

Cum Gas

1.8M MCF

casinghead

Wells

1

Production

2017-03 — 2026-04

Peak Month

2017-04

Production History

Cum Oil: 301,070 BBL Cum Gas: 1,769,382 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

27,283 BBL/mo

Di (annual)

162.9%

b-factor

0.4

EUR

333,613 BBL

R-squared

0.961

type

hyperbolic

Operator History (from monthly production reports)

2017-03 — 2026-07 COG OPERATING LLC 113 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2804BHCOG OPERATING LLC110,5002016-07-06