Mergers and Acquisitions

2 big US coal companies combine Wyoming, Colorado operations

Two of the world's largest coal producers have announced they will combine mining operations in Wyoming and Colorado in an attempt to improve their competitiveness against growing competition from natural gas and renewable energy sources.

Pfizer to buy cancer drug developer Array for $10.64B

Pfizer Inc said on Monday it would acquire Array Biopharma Inc for $10.64 billion in cash, giving it access to the target's approved drugs for skin cancer and the targeted cancer medicines in its pipeline.