Europe could experience energy shortages before the end of April, the chief executive of Shell has warned. Jet fuel supply has already tightened, and a diesel squeeze could be next, with gasoline supply tightening as well, as the continent nears peak fuel demand season in the summer, Wael Sawan said, as quoted by Reuters. “South Asia was first to get that brunt. That's moved to Southeast Asia, Northeast Asia and then more so into Europe as we get into April,” Sawan said, speaking at the CERAWeek conference in Texas. The executive noted…