http://www.ogj.com/articles/2013/05/us-should-repeal-its-antique-ban-on-the-export-of-crude.html http://www.ogj.com/articles/2013/05/doi-releases-revised-proposal-to-regulate-hydraulic-fracturing.html http://www.ogj.com/articles/2013/05/double-eagle-pipeline-begins-eagle-ford-condensate-shipments.html http://www.ogj.com/articles/2013/05/large-gain-seen-in-alberta-oil-production.html http://www.ogj.com/articles/2013/05/san-leon-energy-to-buy-talismans-share-of-poland-shale-gas-jv.html http://www.ogj.com/articles/print/volume-111/issue-5a/regular-features/editorial/the-keystone-xl-symbol.html http://www.ogj.com/articles/print/volume-111/issue-5a/general-interest/water-increasingly-crucial-in-energy.html http://www.ogj.com/articles/2013/05/crosstex-to-invest-in-utica-shale-compression--condensate-stabil.html http://www.ogj.com/articles/2013/05/house-panel-questions-funding-support-for-blm-to-regulate-fracin.html http://www.ogj.com/articles/2013/05/canada-to-eu--don-t-penalize-oil-sands.html