BAGHDAD, (Reuters) - Iraq's oil ministry on Thursday called on companies to invest in a project to build a 70 Mbpd oil refinery in the western province of Anbar.

Potential investors have until June 14 to make proposals, the ministry said in a statement, adding that the project is offered on a Build-Own-Operate or Build-Own-Transfer basis.

The Anbar refinery, near the town of Hadditha, is part of a government plan to increase the nation's oil processing capacity and reduce its oil products imports.

Baghdad in recent months has announced plans to build four refineries and to refurbish oil and gas processing plants destroyed during fighting with Islamic State insurgents.

(Reporting by Maher Chmaytelli; editing by Jason Neely)