Mountain Fuel Supply Co.'s request for a rate case rehearing has been rejected by the Utah Public Service Commission.

The company wanted the commission to reconsider a Nov. 21 order granting Mountain Fuel a negligible $76,000 rate increase instead of the $10 million rate hike requested by the company.Mountain Fuel now has 30 days to file an appeal with the Utah Supreme Court if it desires.

In denying the request, the commission rejected claims by Mountain Fuel that the commission erred in using a historic test year without allowing adjustments for current conditions and also rejected the company's argument that a reduction from 12.2 percent to 12.1 percent in its profit margin was arbitrary and capricious.

The commission will allow Mountain Fuel to work out a stipulation with other parties involved in the case concerning the addition of $266,000 in revenues that were not included in the exhibits presented in the case.