SemGroup Corporation provides gathering, transportation, storage, distribution, marketing, and other midstream services for producers, refiners of petroleum products, and other market participants. Its Crude Transportation segment operates crude oil pipelines and truck transportation businesses. As of December 31, 2015, this segment operated a 570-mile crude oil gathering and transportation pipeline system in Kansas and northern Oklahoma; a 16-mile crude oil pipeline that connects its Platteville, Colorado crude oil terminal to the Tampa, Colorado crude oil market; a 527-mile pipeline that transported crude oil from Platteville, Colorado to Cushing, Oklahoma; a 210-mile crude oil pipeline in western and north central Oklahoma; and a 75-mile crude oil gathering pipeline system that transported crude oil from production facilities in the DJ Basin to the pipeline owned by White Cliffs, as well as had crude oil trucking fleet of approximately 270 trucks and 270 trailers. The company’s Crude Facilities segment operates crude oil storage and terminal businesses. It had approximately 7.6 million barrels of crude oil storage capacity in Cushing, Oklahoma; and a 30-lane crude oil truck unloading facility with 350,000 barrels of associated storage capacity in Platteville, Colorado. Its Crude Supply & Logistics segment operates a crude oil marketing business. This segment had approximately 61,800 barrels of crude oil storage capacity in North Dakota. The company’s SemGas segment owns and operates natural gas gathering and processing systems in Kansas, Oklahoma, and Texas. Its SemCAMS segment operated four natural gas processing and gathering facilities in Alberta, Canada. The SemLogistics provides refined products and crude oil storage services in the United Kingdom. The SemMexico segment purchases, produces, stores, and distributes liquid asphalt cement products in Mexico. The company was founded in 2000 and is headquartered in Tulsa, Oklahoma.