The Port of Corpus Christi is seeing growth not many expected due to the Eagle Ford Shale. Many oilfield products can be supplied by water and waterborne routes can provide needed flexibility for exports. The Gulf Coast has the largest refining and chemical complex in the world along the water's edge. If a pipeline out of the play can't quite get the product where it needs to be, there's a good chance a barge or tanker can. The M/V Pennsylvania, an oil tanker operated by Crowley Maritime Corporation, entered the Port September 26, 2012, for the first time. The ship has capacity to move 330,000 bbls of petroleum products and sails under the U.S. flag. The flag is significant because the Jones Act only allows domestic ships to move products between U.S. ports.