In the following video, Motley Fool energy analyst Joel South tells investors about the opportunities ahead for Energy Transfer Partners (NYSE:ETP). Once a strictly intrastate natural gas pipeline company in Texas, it has grown immensely, both in its geographical coverage, as well as its type of pipeline. It's now moved heavily into the higher-margin oil pipeline market. Joel details the regions that the company has expanded to, and discusses just how much demand it is going to be facing there. He also tells us why the company's focus on fee-based contracts is going to mean huge amounts of stable reliable cash flow in the future.