(Bloomberg) -- OPEC Secretary-General Mohammad Barkindo, an oil industry veteran who steered the group through the creation of the OPEC+ alliance, has died in his native Nigeria, according to officials.

Barkindo, 63, was in the final weeks of his six-year tenure as the top diplomat at the Organization of Petroleum Exporting Countries, where he headed its Vienna-based secretariat. He had returned to Abuja in preparation for a post-OPEC career.

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