Exxon is not just an energy company of the past.ExxonMobil (XOM -0.02%) released first-quarter results on April 26, and the report gave shareholders much to cheer about. For the period ending March 31, the company posted earnings of $8.2 billion, or$2.06 per share.Exxon earned $11.43 billion, or$2.79 per share, in Q1 of last year. Although the recent numbers equal a 26%-28% decrease, a more noteworthy metric is that Exxon generated a whopping $10.1 billion in free cash flow, beating analysts' expectations ...