DOW JONES NEWSWIRES Undersea sensors were deployed to the ruptured well in the Gulf of Mexico on Sunday in an effort to better track the amount of oil gushing into the Gulf, the Huffington Post reported on its website Monday. Coast Guard Adm. Thad Allen, the U.S. commander overseeing the response to the BP Plc (BP) oil spill, said on Sunday goverment officials estimate the spill at about 66 million gallons of oil. Allen said the sensors were to be deployed Sunday and will start taking pressure readings to validate the estimates, the report said. BP spokemsan Jon Pack said undersea robots were attempting to install the sensors within the containment cap that sits over the well. Full story at http://www.huffingtonpost.com/2010/06/13/underwater-sensors-deploy_n_610528.html -Dow Jones Newswires; 212-416-2900 (END) Dow Jones Newswires June 14, 2010 08:00 ET (12:00 GMT)