Natural gas will displace coal in power generation. Getting natural gas into the transportation fleet is harder. It works best for vehicles that work from centralized fueling facilities like trucking fleets or buses and cabs. That is happening. Before it can make big inroads beyond that, infrastructure is going to need to be developed.

Despite some struggles of our own, Americas business and economic system remains the envy of much of the world.

Chinese growth will either be strong or very strong. They have a voracious demand for energy that will only continue to grow. What they're doing... is looking at all forms of energy. They're going ahead very strongly with coal, nuclear, oil, natural gas.

What I see are people who want affordable energy. They want strong environmental standards - they want a lot of things - but first and foremost they want affordable energy. And if you want affordable energy, you want oil, gas and coal.

Price creates incentive, and energy will be developed if there's demand for it at the price you can develop it.

Actually, I'm a strong supporter of comprehensive tax reform.

If you look around the world, the countries with the best environmental practices are the wealthiest. There's a reason for that. If you're worried about where your next meal is going to come from or shelter over your head, your focus is on those things.