This is being followed closely as it is similar to the problem in Hutchinson, KS a few years back that turned out to be an underground leak from underground gas storage that had traveled for about 15 miles. However, according to my brother who is a lot closer to Kingfisher the state officials at this point don't think that is the problem. There are several fault lines in the area but there has not even been a small quake down that way for several years. I am sure the folks in OK don't want the problems Hutch had when they had buildings explode and people die. If you haven't seen the photo images they are great!