Niue's Minister for Bulk Fuels, Togia Sioneholo, says the island expects to make substantial gains after it committed last month to the Bulk Fuel Initiative.
It became the fourth country to sign up to the Pacific Petroleum Project.
Mr Sioneholo says converging as a region appears to be the only viable means of achieving greater leverage.
Pacific Islands Forum Leaders agreed nearly four years ago to undertake a joint negotiation process for the bulk procurement of petroleum to address their shared concerns about energy affordability and security.
But it took until last October for the first three countries, Nauru, Tuvalu and the Cook Islands to sign an MoU launching the Pacific Petroleum Project.