What caused the large scale expansion of the oil industry/9884141/0849a60e? utm_source=registration

Industrialization quickly changed the landscape of the United States and other countries in the 19th century. Construction materials, like steel and iron were needed for buildings, factories, and railroads. Oil was discovered to be a great source of fuel. The Spindletop Geyser in Beaumont, Texas was discovered in 1901, and over 1000 oil companies were chartered. 8 years later, the U.S.'s oil production was more than the rest of the world's oil production combined.