The project began in 1982, when the
Economic Community of West African States (ECOWAS) proposed the development of a natural gas pipeline throughout West Africa. In 1991, a feasibility report conducted by the
World Bank on supplying Nigerian gas to West African markets deemed that a project was commercially viable. In September 1995, the governments of four African countries signed a Heads of State Agreement. The feasibility study was carried out in 1999. On 11 August 1999, a Memorandum of Understanding was signed by participating countries in
Cotonou,
Benin. In February 2000, an Inter-Governmental Agreement was signed. The WAGP implementation agreement was signed in 2003. Groundbreaking ceremonies for the project were held at
Sekondi-Takoradi, Ghana, on 3 December 2004. Construction began in 2005. The offshore pipeline was completed in December 2006 and was scheduled to start operating on 23 December 2007 but was delayed after leaks were detected in supply pipelines in Nigeria. The second delivery deadline was scheduled on 13 February 2008, but regular deliveries were delayed again, when one of the contractors of Willbros was shot and killed in Nigeria by armed robbers. However, deliveries were postponed again due to an irregular amount of moisture found inside the onshore gas pipeline. ==Route==