Fair and equitable treatment/Minimum standard of treatment, including denial of justice claims
Full protection and security, or similar
http://www.energycharter.org/what-we-do/dispute-settlement/investment-dispute-settlement-cases/17-liman-caspian-oil-bv-the-netherlands-and-ncl-dutch-investment-bv-the-netherlands-v-republic-of-kazakhstan/
http://globalarbitrationreview.com/news/article/14026/oil-company-fights-kazakhstan-drilling-rights/ (requires subscription)
https://www.transnational-dispute-management.com/legal-and-regulatory-detail.asp?key=9444