BP first quarter earnings fall of 80 percent, beat analyst estimates

British oil major BP on Tuesday reported an 80 percent year on year fall in core earnings for the first quarter, when oil prices touched a near 13-year low, but the result was better than analysts had expected. Chief Executive Officer Bob Dudley said he expected global oil supply and demand to balance towards the end of the year, which would likely help push prices higher.     "Market fundamentals continue to suggest that the combination of robust demand and weak supply growt