Iraq has extended the deadline for foreign companies and investors to bid for a project to build a 100,000 barrel-per-day refinery in Kut province, the oil ministry said on Tuesday. Investors interested in bidding have until Oct. 4 to make offers, the ministry said in a statement. The refinery, south of Baghdad, is one of several crude oil processing projects offered by Iraq as part of its plan to become self-sufficient in oil products. Bidding documents provide for two investment models – build-own-operate (BOO) and build-operate-transfer (BOOT), it said. Reporting by Ahmed Rasheed