Wren House bid against JP Morgan, Blackstone, KKR. : London: The British infrastructure arm of Kuwait’s sovereign wealth fund has agreed to buy oil and gas pipeline firm North Sea Midstream Partners (NSMP) for around £1.3 billion (Dh6.2 billion or $1.7 billion) from ArcLight Capital, according to two sources.Wren House, the London-based infrastructure investment arm of the Kuwait Investment Authority (KIA), fought off bids from JP Morgan, Blackstone, and private equity fund KKR to buy NSMP, according to one of the sources.“Wren House was bidding against some very big players and they simply offered the best terms,” said the source.