LONDON, March 12 (Reuters) - Royal Dutch Shell's proved oil and natural gas reserves decreased by the equivalentof 863 million barrels of oil in 2014, the company said in itsannual report.
"In 2014, after taking into account production, our totalproved reserves declined by 863 million (barrels of oilequivalent)," Shell said in the report published on Thursday.
Western oil companies including Shell have struggled inrecent years to expand their proven reserves. (Reporting by Alex Lawler)