FINANCE: Via Twitter, activist investor jumps back into oil and gas Saqib Rahim, E&E reporter Published: Wednesday, October 9, 2013 The year has brought many a murmur that change is in store for Calgary, Alberta-based Talisman Energy Inc. Please subscribe to EnergyWire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.