Unitil Corporation announced that its Board of Directors raised the quarterly dividend on the company's common stock to $0.405 per share, an increase of $0.015 per share. This action increased the company's annualized dividend by $0.060, to $1.62 per share. Also the Board declared the first quarter common stock dividend of $0.405 per share, payable February 28, 2023, to shareholders of record on February 14, 2023.