Shark Tank investor Kevin O'Leary has just announced plans to build a new $14-billion refinery in the United States to help America become more energy independent. The U.S. needs a new refinery as it would not be weaning off fossil fuels for decades to come, the chairman of O'Leary Ventures told FOXBusiness this week. "Unfortunately, no matter how much you think we're getting off hydrocarbons, it's not going to happen for 50 years," O'Leary said on The Big Money Show, revealing for the first time plans to work…