WASHINGTON — Oil consumption has fallen, demand from U.S. motorists for gasoline is flat at best and refiners that turn crude into fuel are operating well below capacity. Yet oil prices keep marching toward $90 a barrel, pushing gasoline toward $3 a gallon in many markets, and prompting American drivers to ask, ‘What gives?’ Blame it on the same folks who brought you $140 oil and $4 gasoline in 2008: Wall Street speculators. Experts attribute much of the recent rise in prices to flows of speculative money into oil markets. These bets are fueled by investor expectations that the U.S. and global economies are poised to return to growth and thus spark increased use of oil. Strong growth in China supports the narrative of rising oil consumption and tightening supplies. ‘The thinking goes that rising stock (market) prices implies expanding business activity, implies growing energy demand, implies rising oil prices. I think you can make that case, but it’s awfully weak,’ said Michael Fitzpatrick, vice president-energy for MF Global, a financial firm that brokers the sale of contracts for future delivery of oil. While there are signs of U.S. economic recovery, such as a slight uptick […]