Petroleum Sarawak Bhd (Petros) has submitted a proposal to Petroliam Nasional Bhd (Petronas) regarding potential cooperation that can be explored between the two companies, said Deputy Prime Minister Fadillah Yusof.

He said that if no decision is reached by both parties, negotiations involving Prime Minister Anwar Ibrahim and Sarawak Premier Abang Johari Openg on the matter will be held.