Oil supply running ahead of demand hasn't just pressured prices, it's also filling up storage space, potentially pushing crude toward another leg down.
"We're going to see pretty fast inventory builds over the next few weeks," Francisco Blanch, head of commodity research at Bank of America-Merrill Lynch, told CNBC Wednesday, noting that global supply is running around 1.4 million barrels a day above demand.
"If you run out of space, prices tend to react a lot more violently to adjust that supply and demand imbalance and that's what we expect over the next few weeks," he said, forecasting both WTI and Brent will fall toward $30 a barrel. Prices settled at $50.99 and $61.97, respectively, on Wednesday.
He cited fresh American Petroleum Institute (API) data which showed U.S. crude inventories climbed by a larger-than-expected 8.9 million barrels in the week ended Feb. 20, for a total of around 437 million barrels squirreled away. Around 50 million to 100 million barrels of crude oil may be gathering dust in floating storage by the end of the second quarter, compared with around 110 million barrels in April 2009, during the global financial crisis, he estimated.