Oil was first found on January 10, 1901; it was a gusher, spilling out 100,000 barrels of oil a day.
... spread out with 29.0% under the age of 18, 5.0% from 18 to 24, 29.0% from 25 to 44, 24.2% from 45 to 64, and 12.7% who are 65 years of age or older. The median age is 39 ...