The state government has called the $A300m development "the jewel in the crown" and touts its benefits to tourism and job creation.
Once reached, the agreement will be ratified by legislation and go through parliamentary and select committee processes.
"Methinks Mr Joyce just wants to have Ms Metiria Turei gnashing her teeth over the weekend. This will really get her going."
The casino operator's shares rise 3.4% to $4.55, the highest since November 2007.
Net profit falls to $66.3m, or 11.5 cents a share, in the six months ended December 31, from $78.8m (13.7c a share) a year earlier.
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