AGL Resources Inc. [AGL] AmeriGas Partners, L.P. [APU] Atmos Energy Corporation [ATO]
Chesapeake Utilities Corporation [CPK] Clean Energy Fuels Corp. [CLNE] Corning Natural Gas Corporation [CNIG.OB]
Delta Natural Gas Company, Inc. [DGAS]
El Paso Pipeline Partners, L.P. [EPB] Energen Corporation [EGN] EQT Corporation [EQT]
Gas Natural SDG, S.A. [GASNF.PK]
National Fuel Gas Company [NFG] National Grid plc [NGG] New Jersey Resources Corporation [NJR] Nicor Inc. [GAS] Northwest Natural Gas Company [NWN]
ONEOK, Inc. [OKE]
Piedmont Natural Gas Company, Inc. [PNY]
RGC Resources, Inc. [RGCO]
Sempra Energy [SRE] South Jersey Industries, Inc. [SJI] Southern Union Company [SUG] Southwest Gas Corporation [SWX]
The Hong Kong and China Gas Company Limited [HOKCF.PK] The Laclede Group, Inc. [LG] TransCanada Corporation [TRP]
WGL Holdings, Inc. [WGL]
