"We now find Glencore is the first of the major miners to raise equity in the current tough pricing environment, the marketing division failing to deliver as indicated in [the first half of 2015], poor acquisition outcomes in [African oil group] Caracal and Xstrata and difficult operating outcomes in key assets," Clifford says.
Analyze the relationship between 'Xstrata' and 'Glencore' within the context of the input sentence.
Options: chairperson, member of, distributed by, owned by