The government's drive for new investment in oil and gas development in New Zealand has suffered another blow with the departure of Texan mid-sized player Apache Corp from a joint venture with Canadian TAG Oil.
The pair were to explore together for oil and gas on the North Island's East Coast. TAG says it will now go it alone.
The shale gas play is likely to involve the controversial practice of hydraulic fracturing, or "fracking", to which the Parliamentary Commissioner for the Environment last year gave a partial clean bill of health, subject to robust regulation.
A groundswell of local opposition to the exploration has been building in the region.
Unlike the Taranaki region on the west coast of the island, the east has no previous experience of oil and gas exploration. TAG is already actively producing oil and gas from numerous onshore wells in Taranaki, has engaged in some fracking to do so, and won more permits in Taranaki in a government tender round late last year.