Overseas Shipholding Group (OSG) flies the flags of many nations. The marine transportation company's fleet, made up mainly of crude oil tankers and product carriers, includes vessels registered in the US and in a number of other countries. Through both long-term and spot market contracts, the company charters its fleet to commercial shippers and government agencies. Overall, the OSG fleet consists of about 110 vessels with a capacity of about 11 million deadweight tons (DWT). Transportation of crude oil and refined petroleum products accounts for the bulk of the company's business, but OSG also transports liquefied natural gas (LNG). In late 2012 OSG filed for Chapter 11 bankruptcy. It emerged in 2014.