Huh?

So I'm watching Fox News this morning, and they're running a story on the oil crisis that will result from the Hurricane.

The shot is a live stand up, and the reporter advises us Americans that 30 percent of the nation's oil supply is produced by Gulf Coast refineries.

As he's saying this, creeping along the bottom of the screen is a statistic that the Gulf Coast produces 20 percent of the nation's oil supply

AND

As we cut away from the live shot, a graphic appears on the screen that shows that the Gulf Coast produces between 25 and 30 percent of the nation's oil supply.

I understand that the Hurricane is a breaking story, but wouldn't we have accurate oil supply numbers written down somewhere?