To integrate or not to integrate petrochemicals – that is the question posed by this paper for Saudi Arabian oil refineries. The viability of combining domestic oil refining and petrochemical activities is investigated using an energy system model for Saudi Arabia. Two scenarios are examined: one allows intermediate naphtha streams to flow freely from refineries to petrochemical equipment, while the other prevents petrochemical units from using intermediate naphtha. The modeling analysis reveals present cost savings of $10 billion from 2023 to 2060 due to integration. Since two Saudi refineries are already equipped with petrochemical processes, the lower cost indicates that the integration of the two activities has been beneficial for both industries.

Principal Fellow- Oil & Gas
Walid works on modeling energy systems. He is developing or has developed the following components of the KAPSARC Energy Model…
Walid works on modeling energy systems. He is developing or has developed the following components of the KAPSARC Energy Model (KEM): electric power generation, oil refining, petrochemicals and fertilizers, cement production, and iron and steel. He is also working on a bottom-up residential electricity use framework that merges microeconomics with the physical laws governing electricity use.
Expertise
- Energy Systems Modeling
- Optimization
- Electricity Prices
- Energy Efficiency and the Interdisciplinary Connection Between Energy Economics and Engineering
Publications See all Walid Matar’s publications

Does integrating oil refining with petrochemicals provide long-term benefits for Saudi Arabia?
To integrate or not to integrate petrochemicals – that is the question posed by this…
25th March 2025
Alternative Fuels and Processes for Saudi Construction Materials Companies
To integrate or not to integrate petrochemicals – that is the question posed by this…
11th February 2025