1. https://www.nsenergybusiness.com/projects/kashagan-oil-field-development/
2. https://jpt.spe.org/caspian-oil-and-gas-leverages-strengths-to-survive-in-a-low-carbon-world
3. https://www.offshore-mag.com/regional-reports/middle-east/article/14205990/caspian-sea-megaprojects-facing-uncertain-future
4. https://www.ncoc.kz/en/ncoc/about
5. www.barrows.com