ReadOasis Step 3

Black liquid exploded out of the ground and towards the sky. It was oil?black gold?and it had the power to light up homes. It had the power to run the engine of the American economy. It had the power to make a man very rich. John D. Rockefeller realized these things, so he took the oil and refined it. Then he created ways to move it around the country with trains and pipes. During his lifetime, Rockefeller became the world's richest man, and he was the first American worth mo...