Exxon Mobil will not pay tax until 2021, a Senate inquiry has heard, the eighth year in a row it will not contribute to government revenue despite earning $7 billion last year.

Australia's tax take from natural resources has come under criticism after it was revealed the country would become the largest exporter of gas in the world by 2020 while earning the second lowest share of revenue…

IMAGE: Tax campaigners rally outside a Senate inquiry into resources. CREDIT: Justin McManus