USA TODAYOil prices tumble on Iran nuclear accordUSA TODAYOil prices tumbled Tuesday after Iran and six world powers reached a nuclear accord that clears the way for Tehran to unleash its oil onto world markets at levels not seen since the West imposed san …

ReutersRebound in oil prices pushes shares higherReutersNEW YORK Stock markets worldwide rose modestly on Tuesday after a landmark nuclear deal between Tehran and six global powers left sanctions on Iran in place for now, spurring gains in energy shares, w …

ReutersCrude drops on Iran deal, hitting oil stocks and currenciesReutersLONDON Oil prices dropped, pushing commodity-linked shares and currencies lower on Tuesday, after Iran and six world powers reached a historic nuclear deal expected to increase the su …

Financial TimesSaudi (oil) tap: Will crude output go up to 11m b/d?Financial TimesThat is one interpretation of the message from Riyadh in Opec's monthly oil market report released on Monday, with Saudi Arabia reporting its crude oil production hit a r …

CBC.caRail companies poised to keep on chugging despite oil swoonCBC.caBut even with oil prices falling off a cliff, industry analysts and railroad executives point out that crude shipments still make up just a sliver of the overall freight delivered by ra …