The closure of the Strait of Hormuz in late February 2026 has moved quickly from a geopolitical event to a domestic business emergency. Indonesia, a net oil importer sourcing over 60% of its petroleum needs from abroad, entered the crisis with limited reserves, a subsidy-heavy fiscal framework, and no strategic petroleum reserve. The consequences are now visible: firms are running thin on inventory, cost absorption capacity is largely exhausted, the rupiah has weakened to record lows, and the fiscal deficit is widening well beyond budget assumptions.
Drawing on a Rapid Industry Assessment, this IBC Policy Brief maps the crisis across three dimensions: energy system exposure, macroeconomic transmission, and sector-level business impact and proposes a structured three-stream response framework covering immediate supply stabilization, fiscal demand management, and long-overdue structural reform. The brief is offered as a practical contribution to government decision-making at a moment when the cost of inaction is rising by the day.
