U.S. supermajor Chevron will be fined $17 million for an offshore oil spill rather than the nearly $25 million announced in July, the head of Brazil's National Petroleum Agency, or ANP, said Monday.

Chevron Corp. has been assessed a penalty of 35.1 million reais ($17 million) for 24 of the 25 infractions identified as contributing to the November 2011 accident, Magda Chambriard told reporters at the Rio Oil & Gas Fair.

She noted, however, that the fine could increase by 2 million reais ($1 million) depending on how the ANP evaluates the 25th infraction.

The ANP is still reviewing Chevron's application to resume operations in Brazil and will make its decision without regard to a judge's ruling that the California-based giant must abandon the South American country, Chambriard said.

The two companies are the subjects of legal proceedings over a spill of 3,700 barrels of crude last year off the coast of Rio de Janeiro state.

Petrobras is helping the companies because it has eight Transocean rigs under contract in deepwater areas, Formigli said.

A suspension of Transocean's operations would harm Petrobras because it would not be able to operate the rigs, the executive said. EFE