This Week In Petroleum.

Teams in the National Football League (NFL) spend a lot of money, resources, and time in analyzing who they should draft each year. Players are interviewed, run through a battery of tests, and watched for countless hours on film. And yet, after all this very thorough analysis, NFL teams still end up drafting a lot of players in early rounds who don?t pan out as expected, while some players who are picked in the later rounds of the draft or are not even drafted, turn out to be stars. So, too, are oil prices difficult to forecast.