The North American natural gas revolution has had an undeniable effect on domestic energy companies. While many of the companies we read about every day are more or less obvious investment ideas, be they oil and gas producers or pipeline operators, there are still a few opportunities floating under the radar. In this video, Fool.com contributor Aimee Duffy takes a look at Canada's Methanex (NASDAQ:MEOH), an energy company that thrives on cheap natural gas, and as a result is striking deals left and right.