ExxonMobil has a rock-solid dividend track record, and its latest growth move could mean bigger dividends ahead.With a market capitalization of over $500 billion, ExxonMobil (XOM -0.69%) is one of the world's largest oil and gas companies and the largest publicly traded energy stock in the U.S. ExxonMobil has grown leaps and bounds in the 140 years or so of its existence, and the stock has been a favorite among energy investors for its dividend stability and growth -- the integrated oil supermajor increased ...