UPDATE 1-Chevron faces problem regaining Brazil drill permit -ANP
June 05, 2012 at 22:02 PM EDT
RIO DE JANEIRO, June 5 (Reuters) - Chevron, the second-largest U.S. oil company, faces problems regaining its Brazilian oil-drilling rights because it has not explained how it plans to "mitigate" problems at an offshore field, Magda Chambriard, Brazil's chief oil regulator, told reporters on Tuesday.
