Devon's dividend policy gives investors a way to capitalize on elevated oil prices.If you're looking to invest in oil and gas stocks, Devon Energy (DVN -0.95%) is a worthy candidate. The oil and gas producer has a trailing dividend yield of 4.8% and provides an attractive way for investors to increase their passive income if oil prices remain high. Here's what you need to know about Devon Energy before you buy it today.Devon's dividend rises alongside oil pricesDevon Energy explores and produces crude oil a ...