According to SAC corporate presentation:

Gold Reserve (GRZ) has an arbitration claim against Venezuela for a mining expropriation:
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Claim notified in April 2009
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Request for arbitration Oct 2009
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Oral hearings Feb 2012
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Share price growth since early 2009 essentially reflects the value of the arbitration claim

So by latest April 2013, GRZ should hear from the tribunal about its claim $$$.  It will be interesting for SAC as well