KenCanning/E+ via Getty Images Introduction Buckle up! It's time to discuss natural gas. Although I promised I would focus more on non-energy investments, I want to take a detour to update my thesis on what may be one of the most volatile stocks on my radar: Antero Resources (NYSE:AR). My most recent article on this company was written on June 9, when I went with the title "Why Antero Resources Is One Of My Highest Conviction Ideas."  Since then, shares have fallen 19%, putting a dent in my thesis. Howe ...