De or het citrusolie?

The correct Dutch article is:

de citrusolie

How to use citrusolie

the citrusoliede citrusolie
this citrusoliedeze citrusolie
that citrusoliedie citrusolie
our citrusolieonze citrusolie
your citrusoliejouw citrusolie
every citrusolieelke citrusolie
which citrusolie?welke citrusolie?
a big citrusolie / the big citrusolieeen grote citrusolie, de grote citrusolie