Yes we have had an official Government report called Oil Prices and Transport Sector Resilience in Nov 2009. This unsigned report had to be ferreted out by the wonderful Thames-based Dennis Tegg, who blogs so responsibly on the topic of peak oil. http://oilshockhorrorprobe.blogspot.co.nz/2011/08/new-zealand-at-greater-risk-from-oil.html. Our unique vulnerability on many fronts is described in the report. Gerry Brownlee and Steven Joyce apparently don't believe an informed public is going to be useful for their oil friendly and lignite friendly agendas! The road transport lobby is no doubt also doing some effective lobbying to bend their ears.
There is another report, the one written by Clint Smith for the Parliamentary Library in Oct 2010. http://www.parliament.nz/en-NZ/ParlSupport/ResearchPapers/4/6/a/00PLEco10041-The-next-oil-shock.htm and to date is still on their website. It is excellent.
And of course there is a report commissioned by NZ Transport Authority from 2008 which was never given much airtime. It was 148 pages long.
And during January Australia suppressed its long and comprehensive report on peak oil too.
The Minister of Defence is also turning a deaf ear to military reports overseas and neglecting to commission a report for our country's security. Like the others he has his head firmly in the sand. When a US CNA Military Advisory Board Report on peak oil came out last year, calling for a 30 percent reduction in US oil use over ten years to reduce "grave national security risks", I wrote to our Minister of Defence, Wayne Mapp, to find out whether he had seen it and asking under the Official Information Act for copies of all reports on oil, and the implications for security that he had received. He replied that he hadn't.
No wonder we have seen all this rush for deep sea oil exploration and lignite production in Southland. Tag Oil in early January spoke of the potential to build thousands of oil wells in the largely untouched region of New Zealand, and said that New Zealand could become the Texas of the South. This was repeated by MPs and Ministers. The dangerous and resource intensive practice of fracking continues. So widespread is the local concern, even the Christchurch City Council has asked for a moratorium on fracking.