By Arathy Somasekhar HOUSTON (Reuters) -Oil prices fell nearly 4% on Wednesday to their lowest settlements since June, as worries about global fuel demand mounted after U.S. data showed a larger-than-expected rise in gasoline inventories. Brent crude futures settled down $2.90, or 3.8%, at $74.30 a barrel. U.S. WTI crude futures fell by $2.94, or 4.1%, to $69.38 a barrel. “There is demand destruction coming in from the fuel side,”said Dennis Kissler, senior vice president of trading at BOK Financial. “The market is more demand focused than supply focused right now.” Concerns over China’s econo…