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Brazilian oil and gas company HRT Participações em Petróleo SA said on Thursday it requested the country's oil regulator (ANP) suspend output at the Tubarao Martelo oil field owned by Oleo e Gas Participações SA.
HRT said Tubarao Martelo is connected to its Polvo field and that the regulator should halt its output until it decides on a unitization, a set of rules that require all fields encroaching on an area controlled by another company to be consolidated into a single unit run by a single operator. (Editing by Cynthia Osterman)