Z Energy plays it safe and sticks with Assignment.
US storage fears may be overblown but shale drillers continue to churn more oil than the market demands.
The New Zealand fuel company says it is always looking to acquire further service stations.
The joint investors previously bought Z Energy and have separate stakes in Metlifecare
DHL and Z Energy earn praise for leadership focus.
Z Energy reported a 13 percent decline in first-half earnings.
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