Transocean Ltd has agreed to pay $1.4 billion to settle U.S. government charges arising from the massive 2010 BP Plc oil spill in the Gulf of Mexico, a source familiar with the matter said on Thursday.

The settlement includes $1 billion in civil penalties and $400 million in criminal penalties, under terms scheduled to be announced later on Thursday, the source said.

(Reporting by David Ingram; editing by John Wallace)