The Kiliwani North gas field is located in the Tanzanian Coastal Basin off the coast of Tanzania. It was discovered by Aminex in 2008. The field is developed using the Kiliwani North 1 exploration well. Production began in 2016 following the completion of gas processing and transportation infrastructure on Songo Songo island in 2015. In 2015 the government completed a US$1.2 billion gas infrastructure project which includes a new 36 inch pipeline from Mtwara pipeline to Dar es Salaam a 24 inch offshore spur line from Songo Songo island to the 36 inch pipeline and a gas processing facility on Songo Songo island. One of the new gas processing facilities receives gas from Kiliwani North.