See CenterPoint Energy Pipeline Services Inc

dba Chevron Upstream Europe.

See PanCanadian Energy Corp

See Qatar Petroleum Corporation.

Acquired by E.ON AG in January 2003

Changed name to Citizens Communications in May 2000 to reflect transformation to a pure telecommunications service provider.

UniSource Energy Corp acquired the Arizona gas and electric system assets of Citizens Communications Co in August 2003, see UniSource Energy Services

Gas system operated by the Utility Safety & Design Inc Unionville, MO office

Gas system operated by the Utility Safety & Design Inc Unionville, MO office

Gas system operated by the Utility Safety & Design Inc Unionville, MO office

Kaneb Pipe Line Partners LP, of which Kaneb Pipe Line Co was the general partner, was acquired by Valero LP in July 2005, see Valero LP

Acquired by Valero LP in July 2005.

See CenterPoint Energy Inc

Now CenterPoint Energy Resources Corp d/b/a CenterPoint Energy Minnesota Gas

See Devon Gas Services LP

Acquired by CMS Field Services

Acquired by Penn Virginia Resource Partners LP in March 2005

Changed name to Chevron Corporation in May 2005

Changed name to Enserch Corp in 1975

Singapore Power Ltd amalgamated Australian subsidiaries TXU Networks and SPI PowerNet under the name of SP AusNet in June 2005

aka Williams Midstream Gas And Liquids.

Merged with Devon Energy Corp in April 2003

Duke Energy Gas Transmission purchased AGL Resources Inc's 50% ownership in Virginia Gas Co in August 2005 and changed name to Saltville Gas Storage