Friday marks the last chance for investors to receive the next dividend payout from Diamondback Energy (NASDAQ:FANG). What’s HappeningThe company announced on Tuesday that it would pay shareholders a quarterly dividend of 90 cents per share. On Monday, Diamondback Energy will go ex-dividend, meaning the stock will trade lower to reflect that payout. In other words, the stock will likely open 90 cents lower than it would have opened on any other day. In order to be eligible to receive a company’s dividend, shareholders must own the stock prior to the ex-dividend date—in this case, Monday. Share…