Q1 Answer: On January 10, 1901, a well at Spindletop struck oil ("came in"). The Spindletop gusher blew for 9 days at a rate estimated at 100,000 barrels (16,000 m3) of oil per day. The Spindletop discovery led the United States into the oil age. Prior to Spindletop, oil was primarily used for lighting and as a lubricant.
Q2 Answer: Though the oil boom surrounding Spindletop had largely subsided by the beginning of World War I, its impact would last much longer. The abundance of oil found in Texas would fuel the expansion of the shipping and railroad industries, as well as the development of new innovations such as automobiles and airplanes.