The company also produces conventional oil, heavy crude oil, and natural gas.

World production of conventional oil will reach a maximum and decline thereafter.

Production of conventional crude oil plateaued in 2004 at 74 million barrels per day.

These dry quicker than conventional oils and are creamy to handle.

This process is much more costly than extracting conventional oil out of the ground.

This conversion is expensive, but the end product has all the favorable qualities of conventional light oil.

The global supply of conventional crude oil peaked in 2006.

In other words, it shows that these fuels are dirtier than conventional oil.

It had longer shelf life compared to other conventional oils.

The process is more energy intensive than conventional oil and thus more expensive.