A kaitiaki of Araiteuru Marae in Dunedin says he's been left bewildered by the information flowing from an oil drilling hui.
The meeting was co-ordinated by the Environmental Protection Agency on 1 May.
Kane Holmes of Ngai Tahu says whanau asked questions about the effects drilling would have on marine life and human life - but the the people they asked were not able provide adequate answers.
He says people also wanted to know about the local economical benefits from oil production royalties.
Mr Holmes says a sum of $4.5 billion for the oil companies was mentioned at the hui, but the figure for New Zealand was only about $200 million.
He says he's no mathematician, but the figures don't sound too grand to him.