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Now Playing: 07-24-12 Marketplace Mid-day Update

The 2012 Olympic Games begin in London on Friday, but already a venerable Olympic sport is underway: The Brits are arguing about the costs and benefits of the event, which set them back at least $15 billion so far. Speaking of $15 billion, China's government-controlled oil company, CNOOC, is snapping up Nexen of Canada for just as much. Nexen is big in the oil sands of Alberta and the Gulf of Mexico. And as this summer's drought shows no signs of letting up, many farmers are worried about the future of their crops -- but in other states, farmers see nothing but green.