Reuters reports that OPEC+ has lost much of its ability to steer the oil market during the Iran war, with China emerging as the more influential force over crude trade flows and pricing signals.

The news agency's assessment marks a notable shift in how traders and analysts read the producer group's leverage. Through successive rounds of supply management, OPEC+ — led by Saudi Arabia and Russia — has customarily acted as the swing supplier whose output decisions set the floor and ceiling for global benchmarks. During the current conflict, that mechanism has weakened, according to Reuters.

What has changed for the producer bloc?

The war has injected risk premium and supply uncertainty directly into the market, limiting OPEC+'s room to calibrate prices through quota policy. Reuters frames the outcome as a structural loss of sway rather than a temporary blip: the group's decisions now carry less weight in determining where crude trades than they did before the conflict began.

At the same time, the bloc faces a demand-side reality it cannot control. China, the world's largest crude importer, has deepened its influence over the market's direction, Reuters reports. Beijing's purchasing patterns, discounted barrels from sanctioned and conflict-affected supply, and its leverage over exporters competing for Chinese refinery demand have shifted pricing power toward the buyer.

Why does China's position matter?

Chinese refiners have become the reference point for marginal demand, and exporters increasingly structure cargoes, grades, and pricing terms around Chinese procurement. That dynamic dilutes OPEC+'s traditional pricing role: when the largest buyer sets the tempo of trade, producer-side output decisions lose part of their market-moving force.

Reuters does not present this as a formal policy victory for Beijing. It is an analytical judgment: the market's center of gravity has moved toward the demand side, and China occupies that position.

The watch item

For Rig & Refinery readers, the question to track is whether OPEC+ regains traction once the war's supply shock fades. Watch the group's next output decision and any signs that Chinese buying patterns — rather than producer quotas — remain the dominant driver of benchmark moves.