T. Boone Pickens, Iconic Oil Tycoon, Dead At 91

[Isgrimnur]

NPR

In 1957, the Oklahoma native founded what later became oil and gas giant Mesa Petroleum. Four decades later, when he was 68, he started BP Capital, a hedge fund focused on energy investments. He was an early shareholder rights activist and a generous philanthropist, giving away hundreds of millions of dollars to various causes.
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The energy tycoon launched a campaign aimed at cutting the United States' dependence on the OPEC oil cartel by embracing alternative energies like wind and solar power, though he noted they wouldn't replace oil completely.