Conversation so far:
where do we get petroleum as a resource
Today, petroleum is found in vast underground reservoirs where ancient seas were located. Petroleum reservoirs can be found beneath land or the ocean floor.
what is petroleum used for
Petroleum is used to make gasoline. It is also processed and part of thousands of different items, including tires, refrigerators, life jackets, and anesthetics
is petroleum renewable
Petroleum, like coal and natural gas, is a non renewable source of energy.
where are the largest reserves of petroleum in the us
Prudhoe Bay, Alaska, has the largest oil reserves in the United States.

Question: when were the first wells made
Self-contained rewrite: when were the first oil wells drilled