The New Zealand dollar fell below 71 US cents after the Organisation of the Petroleum Exporting Countries agreed to supply cuts, driving up the price of crude oil and adding to positive sentiment for the greenback.
The kiwi dollar fell to 70.81 US cents as at 5pm in Wellington from 71.44 cents late yesterday. The trade-weighted index slipped to 78.04 from 78.48.
Crude oil was recently at US$52.08 a barrel, having tumbled enough through 2014 and 2015 to have a deflationary effect. It sunk to US$27.10 a barrel in January this year. Higher fuel prices add to the story that US inflation will pick up if the pace of the US economy quickens under President-elect Donald Trump's policies.
An early signal of US growth will come with the release on Friday of US non-farm payrolls for November, which is expected to show 165,000 jobs added last month. US Commerce Department overnight showed consumer spending rose 0.3 percent in October.
"There was stronger US data and the unknown of OPEC is out of the way," said Martin Rudings, senior dealer at OMF. "That was a hindrance to the strong US dollar trend because there was a mindset they (OPEC) couldn't get a deal together."