Asian stock markets were mixed Tuesday, AP reported. China's main stock index rose 1.7% and Tokyo advanced 0.9%. Hong Kong advanced 1.9% and Sydney gained 3.1%. Shanghai Composite Index rose to 2,994.03 and the Nikkei 225 in Tokyo advanced to 19,867.12. Hong Kong's Hang Seng climbed to 25,519.11. The Kospi in Seoul added 0.4% to 1,962.93 and Sydney's S&P-ASX 200 rose to 5,939.60. Singapore, Bangkok and Jakarta advanced by more than 2%, while New Zealand declined. Benchmark U.S. crude gained 7.5%, or $2.33, to $33.46 per barrel in electronic trading on the New York Mercantile Exchange. It lost 25% on Monday to $31.13 per barrel. Brent crude, the standard for international oil prices, gained 8%, or $2.75 to $37.10 per barrel in London.