Market: 30%
ProbGap: 72%
Gap: +42 percentage points
Previous ProbGap forecast: 48%
Forecast revision: +24 pp

Something important has changed in PG-0003.

Saudi Arabia's East–West Pipeline is no longer merely expected to restart.

According to Reuters, it has restarted.

Three sources briefed on the matter say Saudi Arabia has resumed operations on the pipeline, with crude already flowing at a reduced pumping rate.

Saudi Aramco is now reportedly working to increase flows toward roughly 4 million barrels per day, while crude exports from Yanbu could resume as soon as Tuesday.

And yet the prediction market remains at just 30% for a restart by September 30.

That looks strange.

But there's a catch.

This market isn't really about whether the pipeline is running anymore

The resolution rules matter enormously here.

Polymarket requires the government of Saudi Arabia to announce that the East–West Pipeline is operational or no longer shut down before September 30.

Partial or reduced-capacity operation qualifies.

But reporting from Reuters — even reporting based on multiple well-placed sources — does not.

Neither does an announcement saying that a restart is planned or expected.

The Saudi government must effectively confirm that the pipeline is presently operating.

That distinction has transformed PG-0003.

The key uncertainty is no longer primarily:

Will Saudi Arabia manage to restart the pipeline?

It is increasingly:

Will Saudi Arabia officially acknowledge the restart before the deadline?

The physical evidence has moved dramatically

When we previously cut our forecast from 64% to 48%, the evidence had deteriorated.

Damage assessments suggested meaningful repairs could be required. Security around Yanbu remained uncertain. Saudi Arabia was developing alternative export routes while the timeline for restoring the pipeline was unclear.

Today's information changes that picture.

Reuters now reports that the pipeline has restarted at a low pumping rate.

Aramco is reportedly trying to raise flows toward 4 million barrels per day.

And the restart was significant enough to contribute to a sharp move in oil markets, with Brent falling more than $2 per barrel as supply concerns eased.

Those are materially different facts from “repairs are progressing.”

The underlying event appears to have occurred.

So why aren't we at 90%?

Because prediction markets resolve on rules, not on economic reality.

There is still no qualifying Saudi government announcement in the information we can verify.

Saudi Aramco had not commented in Reuters' initial report.

That leaves an unusual tail risk.

The pipeline could continue operating while the Saudi government simply does not issue the type of statement required by the market before September 30.

In that scenario, the real-world pipeline could be operational — and the prediction market could still resolve NO.

That distinction is why we aren't treating today's Reuters report as equivalent to resolution.

But 30% now looks too low

We think today's evidence shifts the probabilities substantially.

Before today, both physical restart risk and announcement risk mattered.

Now the first appears to have largely fallen away.

If reduced-capacity operations continue and Yanbu exports resume, there are multiple opportunities over the remaining days for Saudi authorities to publicly confirm the operational status.

And importantly, reduced capacity is enough under the market rules.

Our revised forecast is therefore:

Market: 30%

ProbGap: 72%

Gap: +42 pp

Previous forecast: 48%

This is our second revision to PG-0003.

The forecast history now tells its own story:

Initial forecast: 64%

After damage/security deterioration: 48%

After reported physical restart: 72%

That's what forecast updating should look like.

Not defending the original number.

Updating it when the evidence changes.

What we're watching now

PG-0003 could move very quickly from here.

The most important trigger is no longer another anonymous report that oil is flowing.

It's an official statement.

A qualifying announcement from the Saudi government that the East–West Pipeline is presently operating — even at reduced capacity — would satisfy the market's stated resolution condition.

Until then, there is a striking disconnect:

The pipeline is reportedly running.

The market still says 30%.

ProbGap says 72%.

Gap: +42 percentage points.

This has become less a forecast about engineering — and more a forecast about information.