Kicking off the new month on a weaker note, energy markets softened on the day, with the 12-month NYMEX strip down $0.07 USD/MMBtu, the 12-month Dawn strip down $0.09 CAD/GJ, and WTI down $1.33 USD/bbl to $100.05. Ontario was the main story, as net imports fell sharply by 863 MMcf/d to 2,875 MMcf/d, driven by a collapse in St. Clair volumes as NEXUS Colerain maintenance got underway and both Vector and GLGT St. Clair also weakened. More importantly, this looks like the start of a broader maintenance-driven tightening in import capacity rather than a one-day event, with Colerain at zero through April 7, Hanoverton/Wadsworth starting April 6, Salineville going to zero from April 10-17, and Rover Seneca also coming up on April 7-8. (JM)