system consists of a series of interstate common carrier crude oil and liquid petroleum pipelines that are regulated by the Federal Energy Regulatory Commission, or FERC, and storage assets, all of which are located in the Great Lakes and Midwest regions of the United States. The Lakehead system spans approximately 1,900 miles and includes approximately 4,700 miles of pipe and is the primary transporter of crude oil and liquid petroleum from western Canada to the United States. The Lakehead system serves all the refining centers in the Great Lakes and Midwest regions of the United States and the province of Ontario, Canada.

The company's Mid-Continent system consists of approximately 480 miles of active crude oil pipelines, including the FERC-regulated Ozark pipeline and approximately 15.9 million barrels of storage capacity,which serve refineries in the U.S. Mid-continent region from Cushing, Oklahoma.

The companys Ozark pipeline transports crude oil from Cushing to Wood River where it delivers to ConocoPhillips Wood River refinery and interconnects with the WoodPat Pipeline, and the Wood River Pipeline, each owned by unrelated parties. The companys West Tulsa pipeline moves crude oil from Cushing to Tulsa, Oklahoma where it delivers to Holly Corporations Tulsa refinery, formally owned by Sinclair Oil Corporation. The storage terminals consist of 96 individual storage tanks ranging in size from 55,000 to 575,000 barrels.

Customers: During 2009, approximately 37 shippers tendered crude oil for service by its Mid-Continent system. Its customers include integrated oil companies, independent oil producers, refiners, and marketers.

North Dakota system

The company's North Dakota system includes approximately 240 miles of crude