WASHINGTON & CHARLESTON, W.Va.--(BUSINESS WIRE)--United Bankshares, Inc. (NASDAQ: UBSI), today reported an increase in earnings for the fourth quarter and year of 2014 as compared to same time periods last year. Earnings for the fourth quarter of 2014 were $33.3 million or $0.48 per diluted share as compared to earnings of $19.7 million or $0.39 per diluted share for the fourth quarter of 2013. Earnings for the year of 2014 were $129.9 million or $1.92 per diluted share, an increase from earnin