... and can we trust other members?

Indonesian Minister of Energy and Mineral Resources who is also the acting secretary-general of OPEC is confident that OPEC members would agree to increase oil production ceiling to stabilize price. As for me, I have little faith on cartel. Are we going to be 1980's Saudi Arabia? Or can we just rely on cooperation from non-OPEC members like Russia, Mexico, and Norway? My hunch is, no.