Talk:Changqing oil field

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Start production date[edit]

The article says production started in 1975 (field discovery in 1971), but this source states that production started in 1959. I won't change the data on the article, but if someone could untangle this, that would be great. --Thevictorator95 (talk) 01:05, 31 May 2021 (UTC)[reply]

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