Shares were mixed in Asia on Monday, AP reported. Japan's Nikkei 225 index gained 0.3 percent to 21,835.53, but Hong Kong's Hang Seng dropped 2 percent to 30,201.64 and the Shanghai Composite index sank 1.5 percent to 3,110.65. South Korea's Kospi edged 0.1 percent higher to 2,457.49 and Australia's S&P ASX 200 picked up 0.2 percent to 5,841.30. Shares fell in Singapore and rose in Indonesia. Oil prices fell with U.S. benchmark crude falling 99 cents, or 1.5 percent, to $66.41 per barrel in electronic trading on the New York Mercantile Exchange. It gained 32 cents on Friday to $67.39. Brent crude, which is used to price international oils, fell $1.14, or 1.6 percent, to $71.45 per barrel. The dollar was trading at 107.27 yen, down from 107.36 yen late Friday. The euro edged higher to $1.2337 from $1.2333.