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.