CNOOC Petroleum Brasil Ltda., a subsidiary of CNOOC Ltd., entered into four concession contracts with the Brazilian National Agency for Petroleum for exploration blocks offshore Brazil.

The contracts, announced Oct. 16, were signed for a total of four blocks: S-M-1813 in the Santos Basin, and blocks P-M-1737, P-M-39 and P-M-97 in the Pelotas Basin. The total area is approximately 2,600 sq km, with water depths from 600 m to 3,000 m.

CNOOC Petroleum Brasil is the sole owner and operator in the Santos’ Block S-M-1813.

CNOOC holds a 20% non-operated interest in each of the three Pelotas Basin blocks, with Petrobras holding a 50% operating interested in the blocks and Shell holding the remaining 30% of non-operating interests.