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Faroe Petroleum ends barren spell
One discovery is estimated to contain between 19m and 126m barrels of oil equivalent – though a review of gas transportation tariffs may pose a problem
Records fall as NY art auctions take in $170 million
* Madonna painting from 1490s fetches week’s highest price
Exxon and Chevron toil in hunt for growth
The groups, with large international operations and relatively little exposure to US shale oil, saw falling volumes as output of mature fields fell
