Traditional suppliers are losing export availability, giving Asian producers more room to meet requirements in the US, Europe and other overseas markets.

The response spans the region, with South Korea, Taiwan, India, Singapore and China all sending cargoes beyond Asia.

The flows are no longer just clearing August's surplus; their continuation into September shows overseas markets relying on Asian barrels to cover more requirements.

China's resilience is part of that shift, with steady Group III supply despite falling imports freeing more barrels for distant buyers including Europe and Nigeria.

Asia's own market has absorbed the extra demand without straining supply, with weak prices and open arbitrage suggesting supply remains sufficient.

Singapore's export surge this month shows how quickly additional supply can emerge once domestic production recovers.

That growing overseas pull will compete with Asia's own recovering demand, as more of its output is needed at home.

Planned maintenance in Taiwan and Saudi Arabia will remove further supply in the fourth quarter just as that competition intensifies.

With overseas markets relying more on Asian supply, the region's ability to meet export flows and recovering domestic demand will test how much further the wider market tightens.