The graph below shows the amount of UK investments in clean energy from 2008 to 2015.

The given illustration compares oil production capacity of several Gulf countries namely Iran, Iraq, Kuwait, Qatar, Saudi Arabia and the UAE between 1990 and 2010. As is presented in the diagram, Saudi Arabia had the highest capacity of oil production and its production increased significantly.
The column graph compares probable oil production capabilities of six Gulf countries from 1990 to 2010. Overall, Saudi Arabi was the leading oil generating country and its production increased faster than the remaining five countries.