RE: 100% successful Value Digger's Colombian Energy picks C&C Energia Aug 2012, gain 70%
Canacol Energy Oct 2012, gain 75%
Petrominerales Energy Aug 2013, gain 95%
Parex Resources Sep 2013, gain 150%
Surock Energy, gain 140% in 4 months.
All were made in a few months and ALL can be confirmed by checking his profile and his articles in Seeking Alpha.