"A decade ago... the marginal cost of producing oil was about $20 a barrel. Today it is closer to $85." http://on.ft.com/O6Fma5
12:00 PM - 30 Aug 2012
0 replies
0 retweets
1 like
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.