Carbon County's retirement portfolio is performing well, officials report.

During the county retirement board meeting on Thursday, Robert Crampsie, county controller, announced that the retirement fund's portfolio value as of Nov. 30, was $62,752,700, up $300,000 for the month.In other matters Crampsie asked the board to set the interest rate on member accounts for 2013. The county is required to set an interest rate between 4 and 5.5 percent on member contributions before the start of the next fiscal year.The board chose to set the interest rate at 4 percent.The board also voted to reimburse the general fund for administrative expenses throughout 2012.