The Government has defended hosting international oil executives at the 2011 Rugby World Cup as guests.
It has been revealed the Government invited executives from several companies to the tournament to showcase New Zealand as a good place to explore.
Energy Minister Simon Bridges is not sure how much that cost taxpayers, but said on Tuesday it is not unusual for government departments to invest in promotional activity and believes the investment has paid off.
"Obviously it's important to get these people here .... we're very modest in comparison with what's spent internationally, and has resulted in billions of dollars of investment in New Zealand."
Mr Bridges said the Government spends about $200,000 a year promoting oil and gas in New Zealand.
