Earthjustice

Orlin Wagner / AP Photo

The changing composition of crude oil could have big consequences for the future of the Pacific Northwest economy. That’s one of the key ideas behind a Freedom of Information Act request filed Tuesday by three environmental nonprofit groups. It has to do with exceptions being made to the nation’s 40-year policy of banning most exports of crude oil.

A big ruling in a federal suit brought against the state aims to force more regulation of one of the biggest sources of air pollution: oil refineries.