I just figured that is typical market-maker action for KXL - that is their job, to make sure there's always a market for KXL and that no bid or ask gets more than a few minutes stale.
Here is the Stockhouse data option for viewing MM activity ($$cost).
If anyone knows exactly who the market maker is for KXL, let us know. I see that they rotate through a number of brokerages as "fronts" so that the trades don't all appear from one broker.
One guess is Canaccord, but I had a hunch KXL is better than that. We could ask.
Anyways, just typical MM behavior on slow days. We actually have to thank them for what they do.