Barrow Island is a 202 km2 island 50 km northwest off the coast of Western Australia. The first oilfield on Barrow Island was established in 1964, there are currently 400 oil wells on the island and has been Australia's leading producer of oil by the number of barrels per life of the field. Motto: Cygnis Insignis (Distinguished by its swans) Nickname: Wildflower State Other Australian states and territories Capital Perth Government Governor Premier Const. ... Nodding donkey pumping an oil well near Sarnia, Ontario, 2001 Petroleum (from Latin petra â rock and oleum â oil), crude oil, sometimes colloquially called black gold, is a thick, dark brown or greenish liquid. ...