Subsequent Events (Notes)

6 Months Ended

Jun. 30, 2013

Subsequent Event [Line Items]

Subsequent Events [Text Block]

14. Subsequent Events

We have agreed to acquire substantially all the assets of the downstream transportation business of Hornbeck Offshore Transportation, LLC for approximately $230 million. The business is primarily comprised of nine barges and nine tug boats which transport crude oil and refined petroleum products, principally serving refineries and storage terminals along the Gulf Coast, Eastern Seaboard, Great Lakes and Caribbean.