Asian stock markets were mixed on Monday, AP reported. Tokyo's Nikkei 225 gained 1% to 20,390.66 and the Hang Seng in Hong Kong added 1.4% to 24,571.74. The Shanghai Composite Index declined to 2,891.06. The Kospi in Seoul was off 0.4% at 1,938.38 while Sydney's S&P-ASX 200 added 1.4% to 5,468.80. India's Sensex opened up 0.7% at 31,852.00 and New Zealand, Singapore and Jakarta also advanced. In energy markets, benchmark U.S. crude lost 50 cents to $24.24 per barrel in electronic trading on the New York Mercantile Exchange. The contract gained $1.19 on Friday to $24.74. Brent crude, used to price international oils, shed 53 cents to $30.43 per barrel in London. It rose $1.51 the previous session to $30.97. The dollar gained to 106.97 from Friday's 106.61. The euro declined to $1.0844 from $1.0847.