Fahad, A.Y. and Shaalan, H.Y. 2022. Investment Trends in the Iraqi Oil Sector (Upstream – Oil Refining – Gas Treatment - Transportation - Distribution) (2003 – 2020). Journal of Petroleum Research and Studies. 12, 2 (Jun. 2022), 123-147. DOI:https://doi.org/10.52716/jprs.v12i2.662.