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

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.

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.

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

Historically, the United States has had a wonderful energy policy. We're blessed with a diversity of resources. We have oil. We have gas. We have coal. We have nuclear. And renewables. And as a result, one of our biggest competitive advantages has been affordable energy. You need a strong economy and you need affordable energy to fuel that economy.

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.

Most of the well-developed world - Australia, Western Europe - they develop their resources base, they inventory it, they develop it, and they view it as a good source of jobs and revenue. We are a country that for too long has taken affordable energy for granted.