Australian watchdog says North West Shelf gas jv underpaying royalties
November 28, 2016 at 00:18 AM EST
MELBOURNE, Nov 28 (Reuters) - The North West Shelf joint venture, Australia's biggest oil and gas operation, cut royalties it owed by claiming more than $5 billion in deductions, some of which weren't valid, over the 18 months to December 2015, a government watchdog said on Monday.