South Africa's government has given the go-ahead for a proposal to merge its three state-owned oil and gas entities into a single corporation.

The move will bring to an end the often turbulent times for state oil company PetroSA, which was the successor to Soekor. PetroSA will be brought under one roof with the Strategic Fuel Fund and iGas.

The enlarged organisation will be called the National Oil Company and, as the companies are now, will continue to be controlled by South Africa's state energy company, the Central Energy Fund.