HASEL28 UNIT

Oil · District 7C · Lease #19584

Operator: COG OPERATING LLC

Cum Oil

574k BBL

Cum Gas

3.9M MCF

casinghead

Wells

2

Production

2017-03 — 2026-04

Peak Month

2018-03

Production History

Cum Oil: 574,394 BBL Cum Gas: 3,919,785 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

26,118 BBL/mo

Di (annual)

107.7%

b-factor

0.4

EUR

480,781 BBL

R-squared

0.960

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2802BHCOG OPERATING LLC210,5002016-07-01
2801AHCOG OPERATING LLC210,5002016-06-27