SEMGROUP CORPORATION

SemGroup Corporation (NYSE: SEMG) is a publicly held company that moves energy safely through a network of pipelines, terminals and storage tanks. SemGroup provides gathering, transportation, processing, storage, distribution, marketing and other midstream services primarily to independent oil and natural gas producers, refiners of petroleum products and other market participants located in the Mid-Continent and Rocky Mountain regions of the United States and in Canada, Mexico and the United Kingdom.