Star like object with osculating flight path heading N NE South Texa'sThis is the second time I have seen a blue light which appears to be at a high elevation no flashing light last appearance was 6/11/12… The object appears to look just like a medium magnitude blue star.. I work in the oil field and smoke behind my sleeping quarters and scan the sky. I first observed the object at about 90 degrees to the horizon, so pretty much straight above my head.. the object generally flew north and then north east.. What is particularly odd about the object is that its flight path is not a straight line the is a wobble to the path back and forth.. think of a rope stretched tight and you flick one end.. the flight path reassembles the osculation of the rope, this can not be a conventional plane .. there is no flashing light just blue to bluish white… looks just like a moving star.. not much wind at ground level.. the object appears to be very high in the sky…