it should be pointed out three main refineries are out of action and worse still or has considerably in recent years du constant on its oil installations
It should be pointed out that its three main refineries are out of action and, worse still, its oil production has decreased considerably in recent years due to the constant attacks on its oil installations.
It should be pointed out three main refineries are out of action and, worse still, oil has considerably in recent years due constant on its oil installations.