Woodside Petroleum has completed the $US2.817 billion acquisition of LNG and oil assets owned by Apache Corporation in Australia, with a second, $US854 million transaction involving the Canadian interests expected to close next week. The $US3.67 billion deal was announced by the two companies in December, involving a total purchase price of $US2.75 billion, plus extra amounts to reimburse the US company for investment made since the effective date of July 1 last year.