Answer:
Oil Springs, Nacogdoches County, Corsicana oilfield
Explanation:
When: Summer of 1894
Where: The Corsicana oilfield
One of the first significant wells in Texas was developed near the town of Oil Springs, near Nacogdoches. The site began production in 1866. The first oilfield in Texas with a substantial economic impact was developed in 1894 near Corsicana. In 1898, the field built the state's first modern refinery.
