The refinery with a capacity of 500,000 barrels per day (bpd) is one of the largest refinery complexes in North America.

The company will improve its existing terminal at Port Hudson, Louisiana and build new 29km long 20in diameter crude oil pipeline to connect the port to the Maryland Terminal and to the Anchorage Tank Farm.

The new pipeline is expected to have a capacity of about 350,000bpd and will also have the potential to access other local refineries representing about 140,000bpd.

Genesis Energy chief executive officer Grant Sims said the company is planning to expand its operations in the state of Louisiana.

"This project positions Genesis as an efficient conduit for crude oil supply and logistics in the region," Sims added.

Genesis Energy also has plans to build a new crude oil unit train facility at the Baton Rouge Maryland Terminal.

The company is also planning to build a storage capacity of 200,000 barrels to complement its 216,000 barrels of existing tank capacity, apart from improving the truck station and barge dock.

Project work is scheduled to begin early in 2013, while upgrade, expansion, and completion work at the Port Hudson and new crude oil pipeline is expected to be completed by the end of 2013.

The Maryland Terminal completion is scheduled for the second quarter of 2014.