Washington State Investment Board, Olympia, committed $200 million to Prostar Energy Infrastructure Fund II, managed by Prostar Capital, spokeswoman Tish Day said in an email.
The board, which oversees $134.7 billion in assets, including $104 billion in defined benefit plan assets, previously committed $100 million to Prostar Asia-Pacific Energy Infrastructure Fund and made a co-investment of up to $100 million in Global Terminal Investments in 2014.
As of March 31, the actual allocation to tangible assets was 4.7%.