While it took the Biden administration the better part of six months to drain the US oil supply down to a precarious 20-days of emergency reserves (a 40-year low), it will take decades to refill – if that happens at all, Bloomberg reports.

Stroll through the West Hackberry oil facility on the US Gulf Coast and there’s not much to see: some pipelines and other industrial equipment. But buried deep beneath the surface are storage caverns so massive they’re tall enough to house the Empire State Building with plenty of room to spare.

Thanks to the Biden administration, these reserve sites are sitting half empty.

The Strategic Petroleum Reserve (SPR) now sits at 346.8 million barrels – a level unseen since 1983 – out of a total authorized storage capacity of 714 million.