An informational work that deals with the chief phases of the petroleum industry. The writer attempted to present this work in a simple language free from technicalities to allow the general readers to grasp facts quickly. Contents include: Petroleum and Its Origin The Oil-fields of the World How Petroleum Is Produced The Refining of Petroleum Transport by Land and Sea Petroleum as Fuel Petroleum as a Lighting Agent Internal Combustion Engines Petroleum in England Petroleum in the British Empire Petroleum's Part in the Great War The Scottish Shale-oil Industry A Few Notable Petroleum Enterprises Statistical