This is a Special Issue from “The 1st International Conference on Upstream Energy Technology and Digitalization (ICUPERTAIN) 2022. This proceeding is organized by Universitas Pertamina and collaborated with Universitas Islam Riau as publishing partner through Journal of Geoscience, Engineering, Environment, and Technology and Journal of Earth Energy Engineering. The theme of the International Conference on Upstream Energy and digitalization (ICU-PERTAIN) 2022: “Upstream Industries and 4.0 things to overcome the challenges in a low carbon worldâ€. This theme means identifying the key challenges and opportunities of implementation upstream technology and utilization of big data, data science, machine learning, IoT, and many more to achieve national production target and strive to energy transition.