(EnergyAsia, October 4) — Sakhalin Energy Investment Company Ltd and Russia’s Primorsk Shipping Corporation (PRISCO) last week signed Heads of Agreements (HOA) for the five-year charters of two crude oil tankers the Sakhalin Island and Governor Farkhutdinov.   Sakhalin Energy said PRISCO was well positioned to be awarded these contracts. The company had installed a…