Blueknight Energy Partners, L.P. provides integrated terminalling, storage, processing, gathering, and transportation services for companies engaged in the production, distribution, and marketing of crude oil and asphalt products in the United States. It operates in four segments: Crude Oil Terminalling and Storage Services, Crude Oil Pipeline Services, Crude Oil Trucking and Producer Field Services, and Asphalt Services. The Crude Oil Terminalling and Storage Services segment owns and operates oil terminalling facilities and storage tanks with an aggregate of approximately 7.7 million barrels of storage capacity to manage its customers crude oil inventories and enhance flexibility in their marketing and operating activities. The Crude Oil Pipeline Services segment owns and operates crude oil transportation system in the Mid-Continent region of the United States with a combined length of approximately 500 miles; and a 200 mile tariff-regulated crude oil gathering and transportation pipeline in the Longview, Texas, as well as Eagle North system in the Mid-Continent region of the United States with a length of approximately 200 miles. The Crude Oil Trucking and Producer Field Services segment offers crude oil producer field services comprising gathering condensates from natural gas companies and hauling produced water to disposal wells. It owns or leases 156 tanker trucks to gather crude oil in Kansas, Oklahoma, Texas, New Mexico, and Colorado The Asphalt Services segment offers asphalt services that enable its customers to manage their asphalt product storage, processing, and marketing activities. It has 42 asphalt cement terminals located in 21 states. Blueknight Energy Partners G.P., L.L.C. operates as a general partner of the company. The company was formerly known as SemGroup Energy Partners, L.P. and changed its name to Blueknight Energy Partners, L.P. in December 2009. Blueknight Energy Partners, L.P. is headquartered in Oklahoma City, Oklahoma.