Full protection and security, or similar
Umbrella clause
Arbitrary, unreasonable and/or discriminatory measures
Direct expropriation
Indirect expropriation
Other
https://www.iareporter.com/articles/ecuador-round-up-an-update-on-arbitration-proceedings-against-the-state-including-unreported-cases-and-looming-awards/ (requires subscription)
https://www.iareporter.com/articles/analysis-in-worley-parsons-v-ecuador-arbitrators-deny-jurisdiction-due-to-illegality-and-bad-faith-during-making-of-investment-tribunal-splits-on-whether-illegality-during-investments-ope/ (requires subscription)
https://globalarbitrationreview.com/article/ecuador-beats-refinery-claim-corruption-defence (requires subscription)
https://jusmundi.com/en/document/decision/en-worley-parsons-v-the-republic-of-ecuador-thursday-14th-february-2019#decision_6686