At the end of last year, when it looked as if OPEC was making a concerted effort to rein-in oil market oversupply, shares in Royal Dutch Shell(LSE: RDSB) charged to a 52-week high of just under 2,400p. Unfortunately, this rally didn’t last long. By the end of the first quarter, the shares had fallen by nearly 10% and have continued to slide as worries about a new oil glut have continued to grow. The falling oil price has reignited the argument about the sustainability of Shell’s dividend payout. FULL ARTICLE