Repsol acquisition of Talisman done by May 8
Regulatory approvals for deal worth about $13 billion, in hand.
Talisman Energy loses $1.59B Q4
Blames declining commodity prices, dry hole and writedowns.
Oilpatch deals slow amid market uncertainty, foreign investment rules
Ernst & Young study recommends performance improvement programs to boost efficiency.
Talisman Energy replaces CEO Manzoni
Hal Kvisle, former CEO of TransCanada, assumes the role.