The refinery configuration has a Nelson Complexity Index of 11.3, one of the highly complex PSU refineries. The MRPL petrochemical intensity is currently at 9.5 per cent, aiming to reach 15 per cent in the medium term. The Nelson Complexity Index (NCI) refers to the types of petroleum products can be produced by a refinery. Measured on a scale from 1 to 20, the higher the value on the NCI, the more sophisticated and complex products the refinery can produce.