In February 2006, the Mauritanian government led by Ely Ould Mohamed Vall denounced amendments to an oil contract made by former authoritarian leader Maaouya Ould Sid'Ahmed Taya with Woodside Petroleum. In 2004, Woodside had agreed to invest US$600 million in developing Mauritania's Chinguetti offshore oil project. The controversial amendments, which Mauritanian authorities declared had been signed "outside the legal framework of normal practice, to the great detriment of our country", could cost Mauritania up to $200 million a year, according to BBC News. The Australian Federal Police in June 2006 were investigating Woodside for allegations of bribery and corruption in Mauritania according to "The Sydney Morning Herald". The AFP officially cleared the company of any wrongdoing in May 2008.