In addition to RK1 which was tied in earlier this quarter, RK21 is now tied into the gathering system.
The NRU unit is being commissioned using the RK21 production with full production resuming a bit later this quarter.
That is the main message of the April presentation .
In 2016, RK23 was worked over late in Q4/15 and RK21 late in Q1 of 2016, as the D0 zone was opened for flowing.
These two workovers boosted the RK field production from an average of 200 boepd in Q4 of 2015 to 431 boepd in Q1 of 2016.
Assuming that the RK field entered Q1/16 at 200 boepd, the exit production in Q1/16 must have been about 600 boepd, to average 413 boepd for the quarter.
That is, perforating a new zone in the RK field yields about 200 boepd of production per well.
Resumption of full production later this quarter should result in additional production of at least 400 boepd..
I have not verified this information but it is what others have interpreted from the recent investor presentation on the Cub Energy website. Do your own due diligence.