Answer:
It transitioned the economy of Texas from agricultural to industrial, because before, there were cattle ranges and mostly focused on the cotton and cattle industries. They would herd the cattle up to Kansas where cows would be shipped off to the East.
The cattle and cotton industry was very profitable most of the time, which led to them being the main attraction.
There were some people who thought, "Hey! Imma just start drilling for oil in some place that I just bought because why not!"
Then they hit oil and created a massive influx of profit, which led to other people thinking, "Hey! Deez people made a lotta dolla bills yall so Imma copy them!"
Finally, people started drilling for oil all over the place (even in their backyards) and transitioned the economy to oil and coal mining.
Even during WW2, miners were drilling for oil to power their fighting machines.
Explanation: