Oil prices fell on Monday as a stronger dollar and economic woes in China weighed on the outlook for fuel demand, although Light crude held above $87 a barrel, helped by tighter supplies after Saudi Arabia and Russia extended supply cuts. "Concerns about China's economic growth have weighed on sentiment in the commodity sectors," ANZ analysts said. "The move was compounded by a stronger US dollar, which has dampened investor appetite," they added, referring to the dollar, which has risen for eight straight weeks. Oil prices have risen for the past two straight weeks, with Light crude...