See Barton Instrument Systems LLC

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.

Acquired by APF Energy Trust in June 2004

Merged with Devon Energy Corp in April 2003

Terminal asset acquired by Magellan Midstream Partners LP in September 2005 for approximately $55 million

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

Merged with Petrochem UK Ltd in December 2000 to form Petrochem Carless Ltd

Merged with Carless Refining & Marketing Limited in December 2000 to form Petrochem Carless Ltd

Merged into Petroflex Industria e Comercio SA in 1996

Merged with Salgema Industrias Quimicas SA and Companhia Quimica do Reconcavo (CQR) in 1996 to form Trikem SA

Merged with Companhia Petroquimica Camacari (CPC) and Companhia Quimica do Reconcavo (CQR) in 1996 to form Trikem SA

Merged with Salgema Industrias Quimicas SA and Companhia Petroquimica Camacari (CPC) in 1996 to form Trikem SA

Integrated with COPENE - Petroquimica do Nordeste SA, OPP Quimica SA, Nitrocarbono SA, Polialden Petroquimica SA & Proppet SA in August 2002 to form Braskem SA; merged into Braskem in February 2004

Combined with Universal Resources Corporation to form Questar Exploration And Production in 1999

Changed name to PetroKazakhstan Inc in May 2003

See Larose Gas Plant and Paradis Fractionator under Williams Midstream Gathering & Processing, the assets operator

See subsidiary Discovery Gas Transmission LLC

Merged with Polisur SA to form PBB Polisur SA

Merged with Petroquimica Bahia Blanca SA to form PBB Polisur SA

Acquired by Pasadena Refining System Inc in January 2005.

Acquired by Delek US Holdings Inc in April 2005, see Delek Pipeline Co.

Acquired by Delek US Holdings Inc in April 2005, see Delek Refining Ltd.