“This [voluntary redundancy programme] is in the context of the reality of a lower for longer oil price environment, and is not exclusively related to the Shell-BG combination,” the company said. “A similar proposal was communicated to Shell staff in the Netherlands earlier this month.”
http://www.theguardian.com/business/2016/apr/25/shell-close-three-uk-offices-affecting-1600-employees-bg-group-takeover