Demand for low greenhouse gas (GHG) methane is expected to grow in the coming decades as the expanding LNG‑capable fleet faces increasingly stringent emissions requirements. But its long-term viability as marine fuel depends on regulatory clarity, closing the supply gap, and securing volumes against competing demand.With around 800 LNG‑capable vessels currently in operation, 600 more on order, existing bunkering infrastructure, decades of operational experience, and well-established international safety standards, the fleet is already technically mature.