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

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.
product/material produced