These factories were worked by crude oil from the Baku wells.
This is the highest grade crude oil produced in the world.
Pop. (1901), 4135 It is in the midst of the oil region of Canada, and numerous wells in the vicinity have an aggregate output of about 30,000,000 gallons of crude oil per annum, much of which is refined in the town.
In Russia, until 1875, the crude oil was carried in barrels on Persian carts known as " arbas."
But all these are insignificant in comparison with the mineral oil industry of Baku, which in normal times yields annually between ten and eleven million tons of crude oil (naphtha).
