The chief executive of BP PLC says it will be about 48 hours before they know if pumping heavy mud into a blown-out well is successful in stopping the massive Gulf of Mexico oil spill.
CEO Tony Hayward said on the CBS "Early Show" that his confidence level in the well-plugging bid remains at about 60 to 70 percent.
© Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.