Rose Rock Midstream, L.P., owns, operates, develops and acquires a diversified portfolio of midstream energy assets. The Company is engaged in the business of crude oil gathering, transportation, storage, distribution and marketing in Colorado, Kansas, Louisiana, Montana, New Mexico, North Dakota, Oklahoma, Texas and Wyoming. It serves areas that are through its exposure to the Bakken Shale in North Dakota and Montana, the Denver-Julesburg Basin (DJ Basin) and the Niobrara Shale in the Rocky Mountain region, and the Granite Wash and the Mississippi Lime Play in the Mid-Continent region. The Company�s operations are conducted through, and the Company�s operating assets are owned by, its wholly-owned subsidiary, Rose Rock Midstream Operating, LLC, and its subsidiaries. In June 2014, Rose Rock Midstream LP acquired the remaining 33.4% interest, in SemCrude Pipeline LLC, a Tulsa-based owner and operator of crude oil pipelines, from SemCrude LP.