Its sales of engines and generators, which are often deployed on...

Its sales of engines and generators, which are often deployed on oil rigs, have also grown world wide. It's a sign that, even with Europe in shambles and China faltering, companies still think energy and commodity prices will be high enough to merit the extra investments.

http://www.theatlantic.com/business/archive/2012/07/how-caterpillar-explains-the-world/260312/