Aussie,
This is in detail concerning what they call washouts after lease renewals and I think it also entails to transferring leases from one party to another. Too long to snipe it all so will just put a link to it.
Interesting read of court cases.
http://www.jstevenstewart.com/uploads/1/2/3/0/12303218/the_duties_owed_ty_the_executive_rights_owner_and_the_oper.pdf