In the second major Bakken deal of the summer Whiting Petroleum announced the sale of its Fort Berthold position to RimRock Oil & Gas for $500 million. This comes just weeks after Halcon announced its $1.4 billion Bakken divestiture and reinforces the value proposition for Bakken assets in light of improved differentials. Boardwalk Pipeline Partners and Sempra LNG & Midstream announced non binding open season for new gas pipeline in Permian. Louisiana Offshore Oil Port (LOOP) seeks to export crude by H1 2018. North Dakota crude by rail volumes drop to 7%. Preferred Sands files S 1 offering in preparation for IPO.