Like all of our pipelines, the Mid-Continent System is monitored 24 hours a day, 7 days a week.

MID-CONTINENT SYSTEM
Our Mid-Continent System is composed of our Ozark Pipeline, delivering crude oil from Cushing to Wood River, Ill.; our West Tulsa Pipeline, delivering crude oil to Tulsa area refineries from the Cushing Hub; and storage terminals at Cushing and at El Dorado, Kansas. Altogether, the system includes 480 miles of pipeline, with average deliveries in 2007 totaling 236,000 bpd, and 104 individual storage tanks, ranging in size from 55,000 to 575,000 barrels. With the addition of 11 new tanks in Cushing during 2007 (excluding four older tanks taken out of service), Mid-Continent storage capacity increased to 16.7 million barrels from 12.8 million barrels in 2006.