TXL 'F'

Oil · District 7C · Lease #16978

Operator: COG OPERATING LLC

Cum Oil

10k BBL

Cum Gas

33k MCF

casinghead

Wells

1

Production

2009-09 — 2010-04

Peak Month

2009-11

Production History

Cum Oil: 9,970 BBL Cum Gas: 33,011 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,255 BBL/mo

Di (annual)

286.5%

b-factor

0.4

EUR

15,631 BBL

R-squared

0.991

type

hyperbolic

Operator History (from monthly production reports)

2009-09 — 2010-07 COG OPERATING LLC 11 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10COG OPERATING LLC110,8002008-10-09