POWELL "21"

Oil · District 7C · Lease #17335

Operator: COG OPERATING LLC

Cum Oil

488k BBL

Cum Gas

1.0M MCF

casinghead

Wells

6

Production

2010-10 — 2026-04

Peak Month

2012-11

Production History

Cum Oil: 488,127 BBL Cum Gas: 1,048,960 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,665 BBL/mo

Di (annual)

28.8%

b-factor

0.9

EUR

599,641 BBL

R-squared

0.817

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5COG OPERATING LLC112,0002012-06-21
6COG OPERATING LLC112,0002012-03-13
8COG OPERATING LLC111,0002011-09-08
9COG OPERATING LLC211,0002011-01-24
2COG OPERATING LLC111,0002010-11-10
4COG OPERATING LLC110,8002010-07-21