Blueknight Energy Partners, L.P., together with its subsidiaries, 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. The company offers crude oil terminalling and storage services, which enables it customers to manage their crude oil inventories, marketing, and operating activities, as well as asphalt services that enables its customers to manage their asphalt product storage and processing, and marketing activities. It also provides crude oil pipeline and crude oil trucking services. In addition, the company offers producer field services, including gathering condensates by way of bobtail trucks for natural gas companies to hauling produced water to disposal wells; provision of hot and cold fresh water; chemical and down hole well treatment services; wet oil clean up services; and building and maintaining separation facilities. As of March 13, 2012, it owned and operated a portfolio of midstream energy assets consisting of approximately 7.8 million barrels of crude oil storage located in Oklahoma and Texas; approximately 1,289 miles of crude oil pipeline located primarily in Oklahoma and Texas; approximately 300 crude oil transportation and oilfield services vehicles deployed in Kansas, Colorado, New Mexico, Oklahoma, and Texas; and approximately 7.2 million barrels of combined asphalt product and residual fuel oil storage facilities located at 44 terminals in 22 states. Blueknight Energy Partners G.P., L.L.C. serves as the general partner of Blueknight Energy Partners, L.P. The company, formerly known as SemGroup Energy Partners, L.P., is headquartered in Oklahoma City, Oklahoma.