The prominent scientific journal Nature has just published an article that supports what we in the peak oil world have been saying for years.

James Murray of the University of Washington and David King of the University of Oxford say that global oil production peaked in 2005 at about 75 million barrels a day.
The "supply of cheap oil has plateaued," said King. "The geologists know where the source rocks are and where the trap structures are," according to Murray. "If there was a prospect for a new giant oil field, I think it would have been found."
(Excerpts from news articles about the article.)
Click on the headline (link) for the full text.
Many more articles are available through the Energy Bulletin homepage.
Oil Supply as a Strategic Risk
Justin Gillis, Green (blog), New York Time
... In an opinion piece released on Wednesday by the journal Nature, James Murray of the University of Washington and David King of the University of Oxford point out that global oil production appeared to hit a cap of about 75 million barrels a day in 2005. Since then, they note, small supply bumps have caused big price gyrations, yet even when prices spike above $100 a barrel, supply appears incapable of rising to meet the demand.
The professors make only a glancing mention of the term “peak oil,” a widely promoted and widely attacked concept, but their argument resembles some of the less feverish versions of the peak oil case.
They essentially argue that oil supply now represents a large strategic risk to global economic growth, and that smart governments ought to be developing comprehensive plans and pushing hard to move their citizens into more efficient cars, onto public transit and so forth – a greener energy path that would also be good for the climate.
[An incredibly understated analysis of the crisis and a very naive notion of "solutions."]
Variations of the oil-peaked-in-2005 argument have been made by others, but rarely in the pages of Nature, the world’s most august scientific journal. ...
The required energy transformation “will take decades, so we must begin as soon as possible,” the professors write. “Emphasizing the short-term economic imperative from oil prices must be enough to push governments into action now.”
(25 January 2012)
[Comments from Scientific American and Ars Technica also follow]