Rose Rock Midstream LP, an LP formed by SemGroup to own crude oil midstream assets in the western US, raised $140 million by offering 7 million shares at $20, at the midpoint of the proposed $19 to $21 range. Rose Rock Midstream LP plans to list on the NYSE under the symbol RRMS. Barclays Capital, Citi, and Deutsche Bank Securities acted as lead managers on the deal.
