The latest PortfolioDirect investment report contains reviews of Lion Energy, Zeta Petroleum, Orca Energy and Liquefied Natural Gas.  The overall rating for each stock is based on an assessment of market and milestone risk factors displayed by the company. The four stocks cover a wide range of geographic exposures - Indonesia, Romania, South Australia and north America, respectively.  Of the four stocks reviewed, Lion Energy now has the best risk profile.  The Liquefied Natural Gas risk rating has taken account of some slippage in toll contract timing but also a 500% share price rise which has priced the company for a near perfect outcome despite outstanding permitting and execution risks.