New low in oil prices drags BHP Billiton stock below 2009 levels

[caption id="attachment_809668" align="aligncenter" width="600"] Fayetteville Shale, Arkansas, U.S. (Image courtesy of BHP Billiton)[/caption] Shares in BHP Billiton (ASX:BHP), the world’s largest mining company, were severely hurt Monday by what until now was still its strong point against rival Rio Tinto...