The oil they control isn't below the ground ... "The obvious substitutes for petroleum are plant oils and fats because they have the same base chemical structure as petroleum," he says. Ethanol is a ...

Oil output from the Organization of the Petroleum Exporting Countries fell ... of declining Russian and Iranian exports supports the structure," said Tamas Varga of oil broker PVM.

However, their microporous structure limits their use in processing ... ZMQ-1 proves particularly effective for catalytic cracking of heavy oil. To evaluate the performance of ZMQ-1, the ...