On September 1, 2011, Halliburton filed claims against BP in Texas state court for negligent misrepresentation, business disparagement and defamation related to the April 20, 2010, Macondo incident.

Halliburton has also moved to amend its claims against BP in the multi-district litigation in New Orleans, Louisiana, to include fraud.

These allegations are based upon BP providing Halliburton with inaccurate information prior to performing cementing services on April 19, 2010, and BP’s use of and omission of that information in subsequent public statements, filings and governmental investigations.

Halliburton has learned that BP provided Halliburton inaccurate information about the actual location of hydrocarbon zones in the Macondo well.