http://www.aga.org/

http://tonto.eia.doe.gov/oog/info/ngw/ngupdate.asp

http://www.plca.org/

http://www.pipewire.net/

http://www.iploca.com/

http://www.ingaa.org

http://www.fe.doe.gov/oil_gas/im_ex/otherinfosourc es.html

http://www.gasindustries.com/economics/economic. htm

http://intelligencepress.com/

Pipeline Players

Symbol

Atlas Pipeline Partners

APL

Buckeye Partners, L.P.

BPL

Chesapeake Utilities

CPK

El Paso Energy Partners

EPN

Enbridge Energy Partners,

EEP

Enbridge, Inc.

ENB

Kaneb Pipe Line Partners

KPP

Kinder Morgan Energy Ptnr

KMP

Northern Border Partners

NBP

Plains All Amer. Pipeline

PAA

Shamrock Logistics LP

UDL

TC Pipelines, LP

TCLP

TEPPCO Partners, L.P.

TPP

TransCanada PipeLines Ltd

TRP