Long description

This graph shows the price of Brent crude oil (plotted on the left-hand axis) against the share price of BP and Royal Dutch Shell (both plotted on the right-hand axis) between January 2014 and March 2015. From January 2014 to July 2014, the price of Brent crude oil remains fairly constant, hovering around $110/barrel. Both BPs and Shell's shares also remain at a constant level. From July 2014 until January 2015, the price of Brent crude oil plummets to less than half its July peak. Both BP and Shell's share prices reflect this fall.