To complement our pipeline gathering and transportation business, we use approximately 125 owned or leased tanker trucks, which have an average tank size of approximately 200 barrels. Our tanker trucks move crude oil from wellhead locations not served by pipeline gathering systems to aggregation points and storage facilities. Our primary service locations include Oklahoma, Kansas and Texas. Our trucking operations extend our ability to gather and aggregate crude oil on our systems and deliver product for third parties to their facilities. This allows the crude oil marketing customers we serve to increase the level of service they are able to provide to their customers and facilitates the transportation of incremental volumes on our system.