With investors increasingly concerned about climate change, OPEC kingpin Saudi Arabia is promoting its crude oil reserves as some of the world’s least polluting hydrocarbons. Receive daily email alerts, subscriber notes & personalize your experience. Register Now Several of its Middle East neighbors, such as Iran, Oman and Iraq, however, aren’t able to make such a claim. Taking into account life-cycle carbon emissions from pumping crude out of the ground to processing it in a refinery, Saudi Arabia’s oil has one of the lowest carbon intensity, or CI, ratings among major global producers, largely due to its easy to access reserves and low flaring of associated gas. Its CI of 4.6 g/MJ of CO2 equivalent, according to data from Stanford University, compares favorably to Iran’s CI of […]