How was Rockefeller able to becomes so successful in the oil bussines?

John D. Rockefeller achieved immense success in the oil business through strategic practices such as vertical integration, which allowed him to control every aspect of production, from refining to distribution. He founded Standard Oil in 1870 and utilized aggressive tactics, including undercutting competitors' prices and negotiating favorable railroad shipping rates. Rockefeller also focused on efficiency and innovation in refining processes, which helped him reduce costs and maximize profits. His ability to create a near-monopoly in the oil industry ultimately positioned him as one of the wealthiest individuals in history.