MANN51

Oil · District 7C · Lease #17400

Operator: COG OPERATING LLC

Cum Oil

53k BBL

Cum Gas

277k MCF

casinghead

Wells

2

Production

2010-10 — 2026-04

Peak Month

2012-02

Production History

Cum Oil: 53,332 BBL Cum Gas: 277,389 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,766 BBL/mo

Di (annual)

66.1%

b-factor

0.3

EUR

45,582 BBL

R-squared

0.730

type

hyperbolic

Operator History (from monthly production reports)

2010-10 — 2026-07 COG OPERATING LLC 190 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2COG OPERATING LLC211,0002012-02-27
1COG OPERATING LLC110,7752011-01-25