Apache's Australian managing director Tim Wall will move to head the group's operations in Canada, with his deputy, John Bedingfield, replacing him as the local chief.
The state's gas shortage is expected to last for another six months as Apache Energy Ltd, the operator of the shut down Varanus Island gas plant, calls on the federal government to review a policy that may have exacerbated damage at the facility.
US-based company Apache Energy Ltd said it will have a clearer picture over the coming days of the extent of the damage and the impact on gas supplies caused by an explosion at its Varanus Island gas plant.
Woodside Energy and BHP Billiton Petroleum are the winners in the annual safety awards presented by the Australian Petroleum Production and Exploration Association (APPEA) for 2008.