The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Secretary Chu announced the coordinated release on 23 June 2011 and the notice of sale followed the next day; DOE's update of 30 June reports the bidding.
Gives the announcement date, the US obligation, the notice of sale and the final contract volume of 30.64 million barrels.[1]
The IEA's own announcement of the collective action the US release was part of.
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.