ExplorationPetronas claims more than 1 billion barrels of oil equivalent discovered in Malaysia this yearPTTEP and Petronas Carigali the stars of the show offshore Sarawak and SabahSignificant success: Mohamed Firouz Asnan, Petronas’ senior vice president of Malaysia Petroleum Management.Photo: PETRONASRussell SearanckeOslo CorrespondentOslo