WASHINGTON, Nov 15 (Reuters) - U.S. Secretary of State Hillary Clinton on Monday praised Israeli Prime Minister Benjamin Netanyahu for outlining to his Cabinet a U.S. plan to extend a freeze on West Bank settlements for 90 days.

Netanyahu presented the plan, which he said was still being drafted with the Americans, to his Cabinet on Sunday, a step which U.S. President Barack Obama told reporters appeared to be a signal that he is serious.

The Palestinians halted peace talks after Israel's 10-month partial construction moratorium expired in September. The Obama administration has offered Israel diplomatic and defense perks to renew the freeze for 90 days, giving negotiations a chance.

This is a very promising development and a serious effort by Prime Minister Netanyahu, Clinton said, declining comment on the details of the plan but stressing that the United States was in close contact with Israeli and Palestinian officials.

We are going to continue to do everything we possibly can to get the parties to begin the kind of serious, end-game negotiations that are necessary to end the conflict, she added.