Sept 21 (Reuters) - BP Plc on Monday said itcompleted work at two oil processing facilities at Alaska'sPrudhoe Bay field in early to mid-September, but did not commenton the size and scope of the maintenance or specify when it wascompleted.
* Oil production at Alaska's Prudhoe Bay field is up 31percent from August levels following the completion of scheduledturnaround work at the two facilities.
* Crude production at Alaska's largest oilfield has averagedroughly 277,000 barrels per day (bpd) so far in September, upfrom 210,900 bpd in August, according to the Alaska Departmentof Revenue. August levels were the lowest in a year.
* BP operates nine fields in the Prudhoe Bay area.
(Reporting by Liz Hampton)