Most-favoured nation treatment
Indirect expropriation
https://www.iareporter.com/articles/snow-crab-dispute-prompts-first-icsid-arbitration-against-norway/ (requires subscription)
https://globalarbitrationreview.com/norway-faces-first-treaty-claim (requires subscription)
https://globalarbitrationreview.com/article/norway-sees-claim-snow-crab-investors (requires subscription)