It would be a mistake, IMO, to attach much significant to the content of Duma's speech. What he is really saying is " I am a powerful and important person." Only the most westernized of the PNG elite have adopted the understated and careful tones which are characteristic of the elite in the U.S. .
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Agreed. I don't read Duma's comments as any indication that a deal with XOM won't ultimately be favored...only that he "has final say" and wants everyone to be reminded of it. I do think PNG knows that they are the final party needed to sign-off and could use that as an opportunity to negotiate some small concessions or otherwise want to "feel important" in the process...rather than just quickly rubber-stamping it. That could take some time.