I was at the track, and I must say, my entire grandstand went crazy! Great finish! In regards to oil on the track, I've personally worked as a flagger, and I if just one of us (Out of 14 stations) can confirm there is oil leaking from a car, we immediately report it. So either every single station was in on it, and stayed quiet (Extremely unlikely and will get you fired in certain instances) or NASCAR ignored them (Also extremely unlikely as they are NASCAR's first line of defense in regards to on track action). And according to NASCAR, no one reported any oil leak that may pose an immediate danger to the field. That's not to say there wasn't oil on track, but what little oil there was, coupled with the fact that the leader's tires were fairly old, and they were going for broke, it's no surprise they were sliding.