Arcadia Gas Storage, LLC

Bear Energy LP

BENTEK Energy LLC

BG US Challenge

Boardwalk Pipeline Partners, LP

Bobcat Gas Storage

BP Energy Company

CenterPoint Energy Services

Chevron Natural Gas

CME Group

ConocoPhillips Gas & Power

Constellation Energy Global Commodities Group

Deutsche Bank

Dominion Transmission Inc.

EnergySouth Midstream, Inc.

Enterprise Product Partners

Freeport-McMoRan Energy LLC

JPMorgan

Kinder Morgan Energy Partners, LP

Merrill Lynch Commodities, Inc.

Mobay Storage Hub LLC

NECC Corp.

NGS Energy Fund, LP

ONEOK Energy Services Company

Pacific Summit Energy LLC

Planalytics Inc.

Sequent Energy Management

Shell Energy

Societe Generale

Southern Natural Gas Company

Southern Pines Energy Center

Spectra Energy

SUEZ Energy North America, Inc.

Tenaska Marketing Ventures