Exxon Mobil Corp. said Wednesday it will raise its quarterly dividend by a penny, to 88 cents a share from 87 cents. The new dividend will be payable Dec. 10 to shareholders of record on Nov. 12. The stock slumped 2.5% in afternoon trading, amid a broad slump in energy stocks as crude oil futures shed 2.3%. Based on current stock prices, Exxon Mobil's new annual dividend rate implies a dividend yield of 5.48%, which compares with the yield for the SPDR Energy Select Sector ETF of 3.75% and the implied yield for the S&P 500 of 1.32%. Exxon Mobil's new implied yield would make it the eighth-highest yielding stock in...