Very fast, high altitude light traveling from the west to the east.Tuesday morning, Nov. 26, 2013, at approximately 06:15 central standard time, I was waiting for the van to warm up. I observed a light to the south, at a very high altitude moving across the morning sky from west to east. I would estimate the altitude at somewhere around 90,000 to 100,000 feet and possibly following interstate 40 over Oklahoma City, Okla. I would estimate the speed to be around Mach 20. It took approximately 120 seconds for the object to traverse from the west to the east.The object traversed across the sky faster than the space stations, which I have watched from 11,000 feet in the San Christie Mountains at Philmont Scout Ranch. But a whole lot slower than a streaking meteorite, with no contrail visible. It appeared to me as if the sun was reflecting off the bottom of an aircraft. Although there were no white or red strobe lights that was visible. I feel that this could have been the experimental aircraft, Falcon HTV-2. I am not sure what it was, but it was fast.