http://www.ogj.com/articles/print/volume-111/issue-3/processing/2012-ethylene-production-bounces-back-turnarounds.html http://www.ogj.com/articles/2013/02/market-watch--wti-rebounds--brent-regresses--gas-increases-sligh.html http://www.ogj.com/articles/print/volume-111/issue-2b/general-interest/panorama-2013-easing-of-oil-price.html http://www.ogj.com/articles/2013/02/suncor-writes-down-challenged-upgrader.html http://www.ogj.com/articles/print/volume-111/issue-02/regular-features/the-editor-s-perspective/oil-demand-outlook-depends-more.html http://www.ogj.com/articles/2013/02/panorama-2013--easing-of-oil-price-unlikely.html http://www.ogj.com/articles/2013/01/oil-demand-outlook-depends-more-than-usual-on-politics.html http://www.ogj.com/articles/print/volume-111/issue-1/special-report-forecast-review/unusual-economic-uncertainties-cloud.html http://www.ogj.com/articles/print/volume-111/issue-1/regular-features/market-journal/2013-looks-a-lot-like-2012.html http://www.ogj.com/articles/2013/01/market-watch-oil-prices-decline-as-joy-over-budget-agreement-wanes.html