That they haven't yet found oil is not the main issue here.
They don't deny that it is hard to find new oil.
Scientists also found oil underwater that could not be seen from the top.
In 2008, £1.4 billion was spent finding new oil and gas reserves.
How does a company go about finding oil and pumping it from the ground?
As some senators noted, there are other places to find oil at far less risk to the environment.
Government scientists place the probability of finding oil there at 46 percent.
Also, the company is still trying to shake its reputation as being one of the least successful companies in finding oil.
Most are having trouble finding enough oil to replace what they pump out each day.
Radar can even be used to find oil or see what chemicals are in soil.