As part of the graduation thesis, a supply chain management model for the oil and gas industry was developed using blockchain technology "Global Sustainable O&G BCSCM" model. The study involved an analysis of existing blockchain methods, identification and description of prospective integration models in the oil and gas sector. Factors influencing the economic impact of blockchain technology implementation were investigated, and a new supply chain management model was proposed, with the development of the model's software code using Python programming language. An essential aspect of this work was the simulation of the developed model using real supply chain data. The obtained results allow for the assessment of blockchain technology implementation effectiveness and the verification of the developed management model's functionality. This research holds practical significance as it offers an innovative platform for decentralized and transparent transactions in the oil and gas industry, addressing issues related to document management, product parameter tracking, transportation conditions, and contributing to the improvement of emissions trading systems.