The leaders were received at Girua airport by Sohe traditional dancers and led to the State House in Popondetta town.
Also present at the airport to welcome the leaders were members of the disciplinary forces, public servants and other distinguished guests.
It is also a significant occasion as it was the first official engagement that all three Oro MPs were seen together since their election wins.
The MPs, Governor Garry Juffa, Sohe MP, Henry Amuli and Ijivitari MP, Richard Masere will be sworn in into the Provincial Executive Council today at the Provincial Assembly.