http://www.reuters.com/article/2011/11/24/chevron-brazil-idUSN1E7AM1DR20111124Wed Nov 23, 2011 11:32pm EST
By Peter Murphy
BRASILIA, Nov 23 (Reuters) - Brazil's government suspended Chevron Corp's drilling rights until Chevron clarifies the causes of an offshore oil spill, the latest twist in a political firestorm threatening the U.S. company's role in Brazil's oil bonanza.
The decision on Wednesday came as the head of Chevron's Brazilian unit testified before Brazil's Congress, where he apologized for the Nov. 8 spill that leaked about 2,400 barrels of oil into the ocean off the coast of Rio de Janeiro.
Brazil's National Petroleum Agency said it decided to halt Chevron's drilling rights after determining there was evidence that the company had been "negligent" in its study of data needed to drill and in contingency planning for abandoning the well in the event of accident.