Caltex Australia Limited (ASX:CTX) has confirmed it has received a number of approaches from potential buyers who may go toe to toe with the group's Canadian suitor. Responding to market speculation Caltex issued a statement to the Australian Securities Exchange saying it had received an approach from British group Euro Garages Limited. In its statement Caltex also said it has had approaches from a number of parties who have indicated that they are potentially interested in making a proposal to acquire Caltex or some of its assets. But Caltex said it had not received a formal takeover proposal since Alimentation Couche-Tard in November. Caltex added there is no certainty that any binding proposal will be made by any of the parties who have expressed potential interest.