If you guessed B, you bought into a Hollywood myth. The reality is A. The US relies on 60 massive hollowed out underground salt caverns along the Gulf Coast. Salt domes are naturally impermeable and self healing. They make the ultimate cheap and secure energy vaults. We pump water in. Oil comes out. The foundational law of economics dictates a simple outcome. Flooding a market with a massive injection of new supply mathematically crashes the price of that asset.