(EnergyAsia, May 26 2011, Thursday) — New Zealand Refining Company (NZRC) is seeking board approval to invest NZ$500 million in upgrades to meet the country’s rising jet fuel and diesel demand, said chief executive Ken Rivers. (US$1=NZ$1.25). Having expanded its Marsden Point plant by 15% to 135,000 b/d last year, the company is eyeing another…