By DPA,
Vienna : The price for crude oil produced by the Organization of the Petroleum Exporting Countries (OPEC) dropped $1.21 Tuesday, sliding below the $42 mark, the Vienna-based cartel announced Wednesday.
One barrel (159 litres) of OPEC crude stood at $41.77 Tuesday, compared with $42.98 at the start of the week.
OPEC calculates an average basket price based on 12 important brands produced by its members.