De or het oliestookinrichting?

The correct Dutch article is:

de oliestookinrichting

Rule Words ending in -ing: almost always de. See the rule

How to use oliestookinrichting

the oliestookinrichtingde oliestookinrichting
this oliestookinrichtingdeze oliestookinrichting
that oliestookinrichtingdie oliestookinrichting
our oliestookinrichtingonze oliestookinrichting
your oliestookinrichtingjouw oliestookinrichting
every oliestookinrichtingelke oliestookinrichting
which oliestookinrichting?welke oliestookinrichting?
a big oliestookinrichting / the big oliestookinrichtingeen grote oliestookinrichting, de grote oliestookinrichting