GdF operates the vast majority of France's domestic Pipeline system. The company operates over 19,000 miles of Natural Gas pipelines in France, with an overall system capacity of 5.9 Bcf/d. The GdF systems covers the entire country, with main trunk lines connecting population centers to the import entry points of Dunkerque, Montoir-de-Bretagne, Fos-Cavaou, Cerville-Velaine, and Taisnieres. GdF also maintains 0.28 Bcf of natural gas storage facilities at strategic locations in the transmission network.

Because of its dependence on natural gas imports, France has extensive pipeline connections with its neighbors. The Franpipe, completed in 1998, links Norway's Draupner platform in the North Sea to the French port of Dunkerque. The 521-mile-long, 1.4-Bcf/d Franpipe was the first pipeline to directly link France with a natural gas field in a foreign country. Analysts predict that Franpipe will eventually supply one-third of France's total natural gas consumption. The Trans-Pyrenean natural gas pipeline, linking Calahorra, Spain to Lacq, France began operations in 1993. The 330-million-cubic-feet-per-day (Mmcf/d) connection allows Spain to import natural gas via France from Norway. France also imports natural gas from Russia through the Cerville-Velaine distribution center in northeast France and from the Netherlands through the Taisnieres entry point.