A significant reconnaissance seismic survey is being acquired off the east coast of the North Island this summer. The survey will be over an area of more than 100,000 square kilometres, between Te Kaka, in the eastern Bay of Plenty, and Castle Point. The faster than anticipated depletion of the Maui gas field, and uncertainty over the level of gas reserves, has placed pressure on the long-term availability of gas for electricity generation and the petrochemical industry. This prospect has prompted the Government to take the initiative to promote gas exploration in some of New Zealandâs relatively under-explored sedimentary basins. www.crownminerals.govt.nz/petroleum/seismic.html.