...- Aurizon Operations Ltd. (AUO) has completed the integration of One Rail Australia (ORA)'s bulk business and the divestment of ORA's coal business. - We anticipate AUO's ratio of funds from operations (FFO) to debt will remain subdued at about 33% in fiscal 2023 (ending June 30, 2023). It should improve toward 43%-47% over the next two to three years, supported by capital management initiatives to reduce debt. - At the same time, the consolidated Aurizon group's FFO-to-debt ratio is likely to improve to more than 25% from fiscal 2024 onward. - We affirmed our '###+' long-term issuer credit rating on AUO, a subsidiary of Australia-based integrated freight railway operator Aurizon Holdings Ltd. (AUH). - The stable rating outlook reflects our view that AUO will maintain its dominant position in the above-rail coal freight market over the next 12-24 months, with an increased contribution from the bulk business....