The event, which takes place at the Perth Convention Exhibition Centre from March 14 to 16 next year, will also be supported by the City of Perth and the Western Australian government.
It is the 37th staging of the event and organisers say that AOG is Australia's largest oil and gas event.
NERA and Woodside have also committed to provide input into the content and organisation of the free industry forums which will take place at AOG 2018.
Woodside was an important participant in the inaugural staging of the ‘collaboration, subsea and knowledge forums' at AOG 2017.
Woodside chief operating officer Michael Utsler said AOG brought the industry together.
"I can genuinely say we are very impressed and pleased with the nature of this conference and the changes that have been implemented to try and provide integration between the trades themselves and the suppliers who are providing service and how problems are being solved," Utsler said at AOG 2017.
AOG 2018 event director Bill Hare said it was very pleasing to have Woodside and NERA again show such strong support for the event.
"The backing we have received from industry and government has been tremendous and it is a testament to the standing and importance of AOG -which we are proud to note is one of the longest running oil and gas events in this region."