Oil prices slid on Tuesday amid concerns that a nascent recovery in fuel demand could stall as a fresh wave of COVID-19 infections around the world sparks tighter lockdowns just as major producers ramp up output. US West Texas Intermediate (WTI) crude futures fell 30 cents, or 0.7% to $40.71 a barrel at 0414 GMT, while Brent crude futures fell 37 cents, or 0.8% to $43.78 a barrel. The slide comes after WTI rose 1.8% and Brent climbed 1.5% on Monday on better-than-expected data on manufacturing activity in Asia, Europe and the United States showing factories were emerging from the worst of the early coronavirus pandemic impact. “On the demand side, we had quite encouraging global manufacturing (data) … but there’s still quite a bit of evidence of the oil demand recovery stalling in quite a few markets with a resurgence of COVID-19,” said Lachlan Shaw, head of commodity research at National Australia Bank (NAB). Denting fuel demand, cities from Manila to Melbourne are tightening lockdowns to battle new infections, while Norway has stopped cruise ship traffic in the latest European travel alarm.