http://www.ogj.com/articles/print/volume-111/issue-4d/regular-features/ogj-newsletter.html http://www.ogj.com/articles/2013/04/cenovus-hikes-canada-oil-sands--conventional-output.html http://www.ogj.com/articles/2013/04/meg-reports-low-sor-in-sagd-pilot.html http://www.ogj.com/articles/2013/04/alberta-eases-royalty-on-five-pilot-projects.html http://www.ogj.com/articles/2013/04/sunshine-sees-slight-west-ells-sagd-delay.html http://www.ogj.com/articles/print/volume-111/issue-4/regular-features/ogj-newsletter.html http://www.ogj.com/articles/2013/03/may-river-oil-sands-development-expected.html http://www.ogj.com/articles/print/volume-111/issue-2b/general-interest/commercial-bitumen-output-approaches.html http://www.ogj.com/articles/2013/02/alberta-reviewing-advanced-tristar-project.html http://www.ogj.com/articles/print/volume-111/issue-1c/regular-features/ogj-newsletter.html