The US oil major had initially planned to start production in 2012, but a spokeswoman for the company's Vietnamese operations told Reuters that first production has now been pushed back to 2014.
Chevron has a 43% stake in the new facilities off the south-western coast of Vietnam, which will see it invest close to $2 billion of the $4 billion needed to get production and delivery infrastructure off to a start.
Other investors in the project are reported to be Japan's Mitsui Oil Exploration and Thailand's PTT Exploration and Production.
A source close to the project told the Vietnam Investment Review that reference prices provided by the Asian Development Bank of $5.8 to $8.2 per million British thermal units “could help the two companies [Chevron and PetroVietnam] reach an agreement soon.”