GLASS 8

Oil · District 08 · Lease #42102

Operator: COG OPERATING LLC

Cum Oil

129k BBL

Cum Gas

1.6M MCF

casinghead

Wells

4

Production

2012-01 — 2026-04

Peak Month

2013-06

Production History

Cum Oil: 129,400 BBL Cum Gas: 1,558,575 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,335 BBL/mo

Di (annual)

53.6%

b-factor

0.3

EUR

106,099 BBL

R-squared

0.917

type

hyperbolic

Operator History (from monthly production reports)

2012-01 — 2026-07 COG OPERATING LLC 175 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9COG OPERATING LLC110,8002012-12-17
6COG OPERATING LLC110,0002012-06-21
11COG OPERATING LLC110,5002012-01-04
3COG OPERATING LLC210,5002011-07-28