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SAO PAULO, March 22 (Reuters) - Brazil's state-run oil company Petroleo Brasileiro SA threatened to turn off several thermal power plants it operates in the country due to lack of payment, according to a letter sent by the company to Brazil's electricity regulator Aneel.
Petrobras, as the company is known, said in the letter seen by Reuters that overdue payments for thermal generation have reached 1.5 billion reais and are hurting its cash reserves. (Reporting by Luciano Costa and Marcelo Teixeira; Editing by Chizu Nomiyama)