1. Álvarez, E., Bravo, M., Jiménez, B., Mourão, A., & Schultes, R. (2018). The Oil and Gas value chain: a focus on oil refining. Retrieved from Orkestra - Basque Institue of Competitiveness Deusto Foundation: https://www.orkestra.deusto.es/images/investigacion/publicaciones/informes/cuadernos-orkestra/the-oil-gas-value-chain-refining.pdf
2. Bennett, A.
(2024, March13). Qatar vs US: the fight for number one LNG exporter. Retrieved from kpler: https://www.kpler.com/blog/qatar-us-lng-exports
3. KPMG. (2024, March). President signs Three Executive Orders on Oil and Gas Reforms. Retrieved from kpmg.com: https://assets.kpmg.com/content/dam/kpmg/ng/pdf/2024/03/President%20signs%20Three%20Executive%20Orders%20on%20Oil%20and%20Gas%20Reforms.pdf
4. What is digital transformation?;O'Brien,2024
5. Singh, G.
(2023, November). Digitalisation – Revolutionising the oil and gas sector. Retrieved from Acuity Knowledge Partners: https://www.acuitykp.com/blog/digitalisation-of-the-oil-and-gas-sector/