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The producer responded to calls from buyers to move away from a volatile regional reference -- the Minas formula, an average of assessments from Platts and the Asia Petroleum Price Index (APPI) -- by pricing all its grades on dated Brent.
In the tender, buyers will have to submit their bids to buy a minimum 6,700 barrels per day (bpd) of the medium sweet Su Tu Den crude.
The tender will close on Oct. 12 with bids valid until Oct. 23.