A multi-billion dollar export deal for the sale of Australian liquefied natural gas (LNG) to Japan has been sealed at a formal signing ceremony in Sydney. Woodside Petroleum chief executive Don Voelte signed the sale and purchase agreements with representatives of Tokyo Gas and Kansai Electric of Japan. The agreement provides for the supply of up to 3.75 million tonnes per annum of LNG to Tokyo Gas and Kansai Electric for 15 years, beginning late 2010. The LNG will be supplied from Woodside's Pluto LNG Project. The board of Woodside last month approved development of the project, subject to receipt of final environmental and other regulatory approvals.