Ampol Limited is an Australian petroleum company headquartered in Sydney, New South Wales. Ampol is the largest transport energy distributor and retailer in Australia, with more than 1,800 Ampol-branded service stations across the country as of June 2025. Ampol also operates in New Zealand through its subsidiary Z Energy. Ampol was first incorporated in 1936 and would later be owned by Pioneer International. The Caltex brand in Australia separately began in 1941 to market petrol in its chain of service stations and was owned by Caltex Australia Limited. In 1995, the Ampol and Caltex operations merged to form Australian Petroleum, equally owned by Pioneer and Caltex Australia. Pioneer sold its shareholding between 1997 and 1998, and Caltex Australia gained full ownership of Australian Petroleum. Caltex Australia then gradually replaced the Ampol brand with Caltex over the next decade. From 2001 until 2015, Caltex Australia was owned equally by American petroleum company Chevron Corporation and the Australian public until Chevron sold its shareholding to the public. Wikipedia