Oil will retain the largest share of the energy mix until 2045 despite a decrease in its share, said Ayed S Al-Qahtani, OPEC Director, Research Division. "However, we will see a drop in the share of oil from 31% in 2021 to 29% in 2045...Both of them (natural gas and renewables) will increase at the expense of coal," said Al-Qahtani.