Fair and equitable treatment/Minimum standard of treatment, including denial of justice claims
Full protection and security, or similar
Umbrella clause
Transfer of funds
Arbitrary, unreasonable and/or discriminatory measures
http://globalarbitrationreview.com/news/article/14995/german-company-denied-jurisdiction-icsid/ (requires subscription)
http://books.google.ch/books?id=RbQq8dQtsQ0C&pg=PA36&dq=wintershall+argentina+icsid&hl=en&sa=X&ei=mlFvVPWZLcnYPfbxgdgM&ved=0CB4Q6AEwAA#v=onepage&q=wintershall%20argentina%20icsid&f=false