By Kevin Yanik A new era of propane production has arrived, but will U.S. retailers adapt their businesses or allow market forces to dictate their future? Shale gas production is at an all-time high, global demand for the U.S. product is feverish, and markets are developing that can strengthen our footing in the world energy sector for years to come. A golden age for propane production is under way in the United States, and based solely on the sheer volume...