Unitil Corp. reported unaudited consolidated earnings results for the fourth quarter and full year ended December 31, 2013. For the quarter, total sales margin was $49.4 million against $45.7 million a year ago. Earnings applicable to common shareholders were $10.3 million or $0.75 per share against $9.0 million or $0.66 per share a year ago.

For the full year, total sales margin was $167.2 million against $153.6 million a year ago. Earnings applicable to common shareholders were $21.6 million or $1.57 per share against $18.1 million or $1.43 per share a year ago. Results for 2013 were driven by increases in natural gas and electric sales margins, partially offset by higher utility operating costs.