Trading ex dividend today: APN Outdoor, Adacel Technologies, Blackmores, Caltex Australia, Canterbury Surrey Hills, Cardno, MMA Offshore, Oil Search, Phileo Australia, Ramsay Health Care, Saunders International, Service Stream, SpeedCast International.
Refer to the input text as context and select the correct relationship between 'Caltex' and 'Oil' from the available options.
Options: position held, owner of, employer, product/material produced