Nelson complexity index

The Nelson Complexity Index measures how advanced and integrated a refinery is. It considers the variety and sophistication of the processing units within the plant. A higher score indicates a more complex refinery capable of producing a wider range of refined products efficiently, often with greater automation and flexibility. Conversely, a lower score suggests a simpler facility mainly focused on basic refining tasks. This index helps compare refineries' capabilities, costs, and potential profitability, reflecting how efficiently they can handle various crude oils and produce diverse products.