The New Zealand Superannuation Fund said it would invest up to US$250 million ($292.5m) in North American gas and oil opportunities with US energy investment firm, KKR.
Up to US$175 million would be directed to new KKR energy private equity investments in North American natural gas exploration and production, NZ Super Fund said in a statement.
The remaining US$75 million would be invested with the $2 billion KKR Energy Income and Growth Fund, a new KKR fund focused on investing in the development of unconventional gas and oil resources in North America.
The NZ Super Fund's other energy sector investments over the past 12 months have included US$100m in Bloom Energy, which uses solid oxide fuel cell technology to create power, and US$55m in wind turbine maker, Ogin.
The investments follow extensive research into opportunities in the energy sector by the Fund over the past couple of years, NZ Super Fund said.