X and O rings are the same basic chains, with lubricant sealed inside the rollers. The outer part of the chain needs no lube except for rust prevention. The oil that would end up between the roller and drive tooth will be forced out almost instantly, leaving a greasy much that dirt sticks to, causing more wear.
Old open chains needed lube, and it rarely got to where it did any good, inside the rollers. That was why they would need to be taken off and soaked in lubricant overnight regularly.
I guess you guys like having something that feels productive to do, lube the chain and clean the mess it sprays?
A oily rag and a wipe of the chain if it is getting gnarly looking is all it needs. It will not get grungy unless you cover it in grease!