A decrease in crude oil held worldwide on tankers is bullish for oil prices. Vortexa reported Monday that crude oil stored on tankers that have been stationary for at least seven days fell by -7.2% w/w to 67.96 million bbl in the week ended September 12.Monday's weaker-than-expected global economic news is bearish for energy demand and crude prices. The US Sep Empire manufacturing survey of general business conditions fell -20.6 to a three-month low of -8.7, weaker than expectations of 5.0. Also, China's Au ...