Given where Houma is, I wouldn't doubt that those are choppers coming off of rigs. In a message dated 2/17/2006 3:25:01 PM Central Standard Time, travelpages@xxxxxxxxx writes: http://flightaware.com/live/airport/KHUM What am I seeing here -- airports with listings like 2911/8808, 2816/8848 -- are those possibly... oil rigs??