National treatment
Indirect expropriation
Umbrella clause
https://www.iareporter.com/articles/duo-of-us-based-oil-services-companies-makes-good-on-earlier-threat-to-initiate-treaty-based-arbitration-against-colombia/ (requires subscription)
https://globalarbitrationreview.com/article/1212424/new-icsid-claims-against-colombia-and-croatia (requires subscription)