Nicholas Grenville Kirton, Director at Essential Energy Services, holds 359.50K shares in Essential Energy Services (Ticker: EEYUF), holds 76.56K shares in Gran Tierra Energy (Ticker: GTE), holds 69.75K shares in Chemtrade Electrochem (Ticker: TSE:CUS). Most recently, Nicholas Grenville Kirton Sold ― shares of Essential Energy Services on Sep 03, 2014 for an estimated value of ―.