Royal Dutch Shell plc (ADR) (NYSE: RDS-A) (NYSE: RDS-B) could be one of the best long-term energy value plays. According to a new note by Argus analyst Bill Selesky, the firm maintains its Buy rating and sees 13 percent upside for the high-yielding stock.“We expect Shell’s underperformance relative to the S&P 500 and the Energy sector over the last few years to reverse as the company cuts costs, divests noncore assets, improves its return on capital, and maintains adequate liquidity,” Selesky explained.via