Just keep an eye on the expiration date and store in a cool dry place. Oil can go rancid.
That's why I buy the small bottle, it's just for me and my Chi-town pizzas a few times a month. The small bottles do cost more as you know....volume,VOLume,VOLUME!! buying is best if you can work with it all...

Come to think of it...can you freeze the stuff or keep it refrigerated vcb? Thanks.