But the tentative settlement does not end all of the legal disputes.
The tentative settlement was the third announced in the securities fraud case.
Both of the committees are expected to act on the tentative settlement today.
The sources said the tentative settlement included job reductions, although the amount was not known.
Earlier this month, a tentative settlement was reached in one of the nine cases.
There are 17 unions involved in the current talks, 7 of which have reached tentative settlements.
The union reached tentative settlements with three new but smaller companies that provide more than half the city's electricity.
A tentative settlement on the union's terms was reached in August.
The company entered a tentative settlement with music publishers over similar issues last month.
In January 2009, a tentative settlement was reached, although the terms were still being finalized.