They're from the National Energy Board.
Also, if you go back to the sustainability reports for each of the oil sands developers, such as Shell, Syncrude, and Suncor, you can actually calculate that number.
On May 12th, 2009. See this statement in context.
May 12th, 2009 / 9:15 a.m.
Associate Professor, Environmental Engineering Program, University of Alberta, As an Individual
They're from the National Energy Board.
Also, if you go back to the sustainability reports for each of the oil sands developers, such as Shell, Syncrude, and Suncor, you can actually calculate that number.
See context to find out what was said next.