Operating in Australia, Icon Energy Limited is a company dedicated to the... Operating in Australia, Icon Energy Limited is a company dedicated to the exploration and development of oil and gas resources. The firm maintains interests in the Cooper/Eromanga and Surat Basins, both situated within Queensland. Established in 1993 and based in Gold Coast, Australia, the company previously traded as Icon Oil NL before adopting its current name, Icon Energy Limited, in November 2000.