Operating alongside its subsidiaries, Bass Oil Limited focuses on the exploration, development, and production of petroleum and natural gas resources. Its principal holding is a 55% interest in the Tangai-Sukananti KSO production assets, which are situated in South Sumatra, Indonesia. The company, established in 1965 and headquartered in Melbourne, Australia, was previously known as Bass Strait Oil Company Ltd until it officially adopted the name Bass Oil Limited in March 2017.