Hi,
Based on the number of shares issued and the known exploration results (aka SM71 upcoming production) and the ownership of 50:50, the relative values of BYE:OEL should be 1:2.2 i.e 1 BYE share should be equivalent of 2.2 OEL shares.
As of yesterday, it was around 1: 4.7 - OEL has not been rerated as per BYE. This will correct over time - just a matter of time.