In 1901, Baku produced over half of the world's oil, totaling 11 million tons. By 1916, the major oil companies in Baku included Nobel Brothers Petroleum and Standard Oil. Currently there are around 400,000 Azerbaijani Americans primarily from Southern Azerbaijan. Azerbaijan has a population of over 8 million with Azerbaijanis comprising 90.6%. Over 1 million people have been displaced from the Nagorno-Karabakh conflict between Azerbaijan and Armenia over the territory from 1988-1994.