Devon Energy's acquisition strategy has paid big dividends over the past five years.Devon Energy (DVN +0.27%) is a leading U.S. oil and gas producer. The company has expanded significantly over the past five years by completing a series of acquisitions. Here's a look at how the oil stock has performed compared to the S&P 500 during its acquisition binge over the past five years. Drilling down into Devon Energy's five-year returnsThe following table shows the return of Devon Energy's stock price and its tota ...