National Public Radio: In 2007, Rick Kinder was working for a contractor, building a house in southern Colorado. The workers had just finished putting in all the doors, windows and sealing the house. Kinder and a colleague were working in the crawlspace, hanging insulation.
"And we just heard this big roar and then a big boom, and it threw us against the walls, and it just blew the whole top of the roof off," Kinder says.
Colorado Oil and Gas Conservation Commission
He and his colleagues didn't know it, but they...