Only two fields in Vietnam have been developed specifically for their Natural Gas potential: Tien Hai, with a potential output of 1.76 million cubic feet per day (Mmcf/d); and Lan Tay/Lan Do of Nam Con Son, which began producing over 5 Mmcf/d in 2002. In the Nam Con Son Basin, a $565 million, 230-mile Pipeline was completed in June 2002 connecting the Lan Tay and Lan Do fields to the mainland at Vung Tau. The Nam Con Son project consists of five subsea wells linked to a production platform and a pipeline leading to an onshore treatment plant. Gas is piped to three generating plants at the Phu My industrial complex, where electricity is provided primarily to areas surrounding Ho Chi Minh City. In December 2004, the Vietnamese government announced that output from Nam Con Son was expected to reach 88 billion cubic feet (Bcf), exceeding planned production by 90%. The project currently supplies the Phu My 1, Phu My 3, Phu My 2.1 power plants and the extended Phu My 2.1 plant. Phu My 2.2 will begin using output from the field soon thereafter.