American oil company Anadarko says its maiden New Zealand deep sea exploration well failed to find commercial quantities of oil or natural gas.
Drilling of the Romney 1 well in the Deepwater Taranaki Basin - about 160 km off the Raglan coast - began in November but was found to be "water-bearing" after reaching its total depth of 4619m, the Texas-based firm said in a statement.
"Though the well, drilled by the state-of-the-art drillship Noble Bob Douglas in 1550m of water, did not encounter commercial quantities of oil or natural gas, the data collected from the well will be very useful in determining future activity," the company said.
The firm said the Romney 1 well would be abandoned and plugged in accordance with New Zealand regulations.
Anadarko spokesman Alan Seay said the Noble Bob Douglas would now move to another exploration site in the Canterbury Basin off the Otago coast.