Sharp upward revision in world oil stocks briefly pushes July oil futures below $30

Gary Park, Petroleum News Calgary correspondent

The International Energy Agency rattled world oil markets June 13 by pumping another 78.8 million barrels into its global inventory, raising the total to 2.44 billion barrels. The findings, based on high U.S. crude runs, briefly pushed July contracts on the New York Mercantile Exchange below $30 a....