Developing an integrated and collaborated evaluation index system for crude oil supply chains: A case study from China

The crude oil supply chain involves production, transportation, refining, marketing, storage and trade, characterized by numerous interconnected links and complex interrelationships. Enhancing the overall value of crude oil supply chains depends on the coordinated development of their upper, middle and lower reaches. However, the absence of a scientific and objective evaluation index system for collaborative development within the crude oil industry precludes identification of weak links that require improvement, thereby impeding decision-making in supply chain development. This study aims to develop an integrated and coordinated development evaluation index system for crude oil supply chains, providing a crucial reference framework for scientific evaluation, guidance, and assessment of crude oil supply chains. Taking China's crude oil supply chain as a case study, this research analyzes the current state of crude oil supply chain research and employs the 5 dimensions of SCOR as the primary evaluation index to examine production, transportation, refining, marketing, storage, and trading. An evaluation index system for integrated and coordinated development of the crude oil supply chain is presented, followed by the development of an evaluation model combining the combination weighting method with the TOPSIS approach. The index system and model established in this study are applied to PetroChina. The findings indicate that PetroChina achieved the highest integration and coordination level in 2021, with a score of 0.578, attributed to optimal supply chain efficiency; conversely, the integration coordination degree in 2017 was subpar, with a score of only 0.468, primarily due to the supply chain's lack of responsiveness. This evaluation index system and model offer a comprehensive assessment of the development in each link and aspect within the supply chain, which can intuitively reflect the weak points of the supply chain and provide essential theoretical support for integrated and coordinated development of PetroChina.