Barseries with reference line on the bar

Hello everyone,

I have a cluster Bar series with 2 clusters or may 3 clusters. Now I want one more reference line, like we have on the bullet chart on these clustered bar series. I think its combining the cluster bar series feature and reference line feature of bullet chart.

Please see the picture for the kind of graph I am looking for. Is this possible in oxyplot? if so, please can anybody provide me sample code ?