I worked at Alpha Natural Resources full-time (More than 3 years)
The people I worked with were top notch.
Federal regulatory agencies were very difficult to deal with.
I applied through other source. The process took 2+ months. I interviewed at Alpha Natural Resources.
The interview process was my best experience at Alpha. I had a phone interview and then an in person interview the following day. It took about 3 weeks to get an offer after my interviews.