The fate of a tax credit that advocates say is needed to maintain tens of thousands of wind energy jobs will be decided during high-stakes, last-minute negotiations between President Obama and House Republicans over fiscal issues, officials said Tuesday.

The wind energy production tax credit is due to expire at the end of the year. Its extension stalled in Congress this summer amid fierce opposition from some conservative House Republicans. The last chance to extend the measure is in the budget deal that will be cut between Obama and Republicans in the lame duck session of Congress.

Backers of the credit tried to ramp up pressure to extend the $12 billion break Tuesday with a teleconference featuring several governors, who noted that uncertainty over its fate has led to thousands of job losses across the country. A study by a wind energy group found that 37,000 jobs would be lost if the credit expires.