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Big oil’s secretive trading arms are having an extraordinary year

source: news (news:economist-business)published 2026-06-28 17:45ingested 2026-06-29 10:30

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document fetched 2026-06-29 10:30 · canonical https://economist.com/business/2026/06/28/big-oils-secretive-trading-arms-are-having-an-extraordinary-year