IEA (2020), "Gas Trade Flows", IEA, Paris https://www.iea.org/reports/gas-trade-flows
The Gas Trade Flows (GTF) data service is intended to improve transparency in natural gas markets. This free service is based on an IEA data collection system that principally covers the European natural gas network, including pipeline and LNG physical flows by entry point. The dataset includes monthly gas flow data by entry/exit point (physical flows) for the 31 participating countries. Data are collected on a monthly M-1 basis. The information is collected by border-point, trade partner country, amounts (both in cubic meters and Terajoules), and maximum flow capacity.