The oil and gas company Chevron has submitted a proposal to extend its contract to operate the Rokan production sharing contract (PSC) in onshore central Sumatra (Indonesia) beyond 2021. The Rokan PSC is Indonesia's single largest source of crude oil and is operated by Chevron Pacific Indonesia (CPI). CPI is the country's third largest oil producer, with 173,000 bbl/d of liquids (24% of total production) and 182 mcf/d (5.1 mcm/d) of natural gas in 2016.
On Sumatra, Chevron operates 90 fields including two major fields, namely Duri and Minas. In 2016, the majority of CPI's Sumatra production came from the Rokan PSC. Aside from Rokan, Chevron also has operating interests in four offshore PSC areas in the Kutei Basin, of which a 92.5% interest in East Kalimantan, a 72% interest in Makassar Strait, a 62% interest in Rapak and a 62% interest in Ganal.