How to increase oil reserves

Since it takes millions or even tens of millions of years to the Earth to form the oil, we can not say that the reserves are extensible. 

If, however, proven reserves correspond to the known deposits that are recovered about 30%, this means that there are several possibilities to increase the proven reserves:

• the discovery of new deposits;
• technical progress, which can be used to exploit known deposits but not accessible;
• Oil prices: some known reserves are not exploited because they are not profitable in the current economic conditions, but may become so if the price of oil increases;
• share prices of oil companies, which is directly related to the reserves they claimed to own, and is therefore likely to be readjusted function economic imperatives of the moment.

The last two possibilities are purely economies or artificial. One thing is certain, if proved reserves are still increasing for some years, they will not rise forever, because the ultimate reserves are not infinite ...