July 28 (Reuters) - Suncor Energy Inc SU.TO
* Says forest fires reduced q2 oil sands production by approximately 20 million barrels
* Says Oil Sands Operations production was 177,500 BBLS/D in Q2 of 2016, compared to 423,800 BBLS/D in prior year quarter
* Q2 oper shr loss C$0.36
* Q2 shr loss C$0.46
* Says total upstream production decreased to 330,700 barrels of oil equivalent per day (BOE/D) in Q2 of 2016, compared with 559,900 BOE/D in prior year quarter
* Says Suncor remains on track to achieve $750 mln reduction to its original 2016 capital budget Source text for Eikon: Further company coverage: SU.TO
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