If you are looking for a utility stock with a strong dividend story, then take a look at this trio of energy providers today.Dividend-paying utility stocks were once viewed as the cornerstone of a conservative investor's income portfolio. The market is much larger today than when utilities were called "widows and orphans" stocks, but more dividend stock options don't actually change the desirability of adding some boring utilities to your portfolio of dividend stocks. As June gets underway, you might want t ...