[Always Right]

The only thing I can think of is if you are less than three, that means you are not for big oil.

[Lexinom]

Oh, you mean like this!:

const int IN_FAVOR_OF_BIG_OIL_AGE = 3;
if( this.age < IN_FAVOR_OF_BIG_OIL_AGE )
   this.AntiOil(BIG);