California Water Service Group reported a net income attributable to CWT of $30.1 million and diluted earnings per share of $0.52 for the fourth quarter of 2023, compared to a net income of $19.6 million and diluted earnings per share of $0.35 for the fourth quarter of 2022. The increase was primarily due to revenue increase from a decrease in deferred revenue, increase in income tax benefit, and an increase in net other income, partially offset by expense increases.