User talk:2806:1016:B:4D1E:1DF0:E38D:F59:E81B

December 2019
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Thank you. ClueBot NG (talk) 02:54, 18 December 2019 (UTC)
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 * The following is the log entry regarding this message: Tracer use in the oil industry was changed by 2806:1016:B:4D1E:1DF0:E38D:F59:E81B (u) (t) ANN scored at 0.930538 on 2019-12-18T02:54:44+00:00