With total export capacity for liquefied natural gas expected to more than double by the end of the decade, LNG tanker companies like Teekay LNG Partners (NYSE:TGP) and GasLog (NYSE:GLOG) are garnering a lot of attention from investors, especially with the number of new vessels these companies should have in operation in the next couple of years. While these two companies may be in the same business, they are built to serve different purposes for an investors' portfolio.

The obvious difference is that Teekay LNG Partners is a master limited partnership, which means you have to pay income taxes on any cash distributions from the company. These two companies also carry different risks based on their positions in the LNG industry. Find out more about these differences by tuning into the video below.