Singapore and more. Singapore Petroleum Company (SPC) refines and sells oil and petroleum products, both in Singapore and across Asia. A 50%-owner of the Singapore Refining Company (Chevron owns the other half), SPC converts crude products into fuels. It processes 51.5 million barrels of crude per year. The company is also engaged in oil storage and terminalling. SPC also manages a network of 38 gas stations in Singapore. The group also has operations in mainland China, Hong Kong, Malaysia, and Thailand. The company has exploration and production assets in Australia, Cambodia, China, Indonesia, and Vietnam. Singapore-based conglomerate Keppel owned 45% of SPC, but in 2009 sold this stake to PetroChina.