O'Neill welcomed the High Commissioner into her new role and said the two countries would continue to build stronger relations.
He also thanked her for New Zealand's provision of independent observers for the forthcoming elections and expertise for APEC preparations.
"As High Commissioner she has arrived in Papua New Guinea at an exciting time in our history as we elect the next Parliament, and host major events such as the Rugby League World Cup and APEC," O'Neill said.
"Papua New Guinea will vote in the coming months, and the presence of international observers is always appreciated to ensure independent verification of transparency in the election process.
"New Zealand will have three former Ministers of State participating as observers and we look forward to them arriving in Papua New Guinea."
As PNG prepares to host APEC, O'Neill said New Zealand was playing an important role in the areas of APEC security and protocol preparations.
"Security for leaders and delegations is one of the most important elements in hosting an APEC summit.
"New Zealand is also working with our protocol personnel to enhance skills required when we bring delegations, including prime ministers and presidents, from the twenty other APEC member economies."