The main developer behind the Cambo oil field is ultimately owned in an offshore tax haven, which could deprive the UK of tens of millions of pounds.
Ferret Fact Service looks at another five claims from the party leaders during a BBC debate ahead of the Scottish Parliament elections.
The leaders of the five largest parties in the Scottish Parliament tussled over issues which have dominated the campaigning ahead of May's election.
The FFS Show episode five is out now. We looked at claims from the STV leaders' debate.
Ferret Fact Service looks at claims from the party leaders during the STV election debate.
The dramatic reduction to operations in Scotland across specialisms including cancer and cardiology has been revealed by new health board figures obtained and analysed by The Ferret.
Taxpayers may be paying "excessive costs" for new schools, hospitals and roads.
A housing fund which is a precursor to the Scottish National Investment Bank (SNIB) has awarded more than £100m to private developers who have built just 700 affordable houses.
Hundreds of tenants in Scotland have been handed eviction notices since the beginning of lockdown, despite government advice for landlords to be flexible during the pandemic.