The nation's second largest natural gas company, Chesapeake Energy, has seen its stock plummet almost 40 percent this year. And this week it's been borrowing billions of dollars at high interest rates just to make ends meet.

Anyone who’s filled up a gas tank recently would probably conclude there’s not enough supply and there’s too much demand, that’s why it costs almost $4 on average a gallon nationwide to fill up your tank. But when it comes to natural gas the supply demand problem is just the opposite.

Natural gas is housed in underground salt caverns, depleted oil fields and aquifers. And the glut of gas means they are filling up too fast.

The huge shale gas deposit is a big deal for global energy markets.