Another three companies will list today: Shandong Longquan Pipeline Engineering, a pipe manufacturer, AoKang Shoes, a footwear supplier whose boss Wang Zhentao is a former China Rich List member, and Dongjiang Environmental Company, a waste management company traded in Hong Kong that has arranged a secondary listing in Shenzhen.

FORBES: Lujiazui Breakfast: News And Views About China Stocks -- April 26

Mrs Merkel took pains to dispel this idea, turning down a Russian proposal to add a third pipe to the Baltic gas pipeline.

ECONOMIST: Germany and Russia

GAIL, signed a deal to pipe gas from Myanmar along a new pipeline.

ECONOMIST: More drilling, less subsidising

In September 2008, a high-pressure natural gas pipeline operated by BP ruptured, sending two segments of pipe flying 900 feet across the tundra.

WSJ: As CEO Hayward Remade BP, Safety, Cost Drives Clashed

The previous route of the Keystone pipeline would have crossed the U.S. border in Montana, shortcutting an existing pipe that enters the United States in North Dakota.

CNN: Keystone pipeline builder proposes new route