Oklahoma's economy runs on oil. The energy industry drives 1 in 5 jobs and is tied to almost every type of tax source, so falling oil prices have rippled into a state budget crisis.
Crude oil prices have dropped more than 70 percent, and that's created problems across government agencies in Oklahoma. Jason Murphy is a project coordinator for the Oklahoma Water Resources Board. He slides on a pair of waders, unspools a sensor probe and splashes into the frigid Canadian River east of Oklahoma City.