Will Iran’s average daily crude oil production for June 2026 be at least 1.6M bpd?

rationale:

This assessment centers on the July 2026 OPEC Monthly Oil Market Report (MOMR) secondary-source estimate for Iran's June 2026 crude production. Note that the official resolution text mistakenly lists BLS sources; the underlying metric is strictly the OPEC MOMR figure opec.org.

The central dynamic for June is a 'tale of two halves,' dividing the month between severe constraint and rapid recovery.

The Baseline and the Production Floor Before the war, Iran produced roughly 3.24M bpd. By May, the Strait of Hormuz closure and US naval blockade had collapsed exports. Yet OPEC secondary sources reported May production at a resilient 2.33M bpd bloomberg.comsignalscv.comtradingeconomics.comcommoditycontext.comceicdata.comwsj.com. This highlights a crucial distinction: OPEC measures production, not exports. Domestic refining requirements provide a structural floor of roughly 1.7M–1.8M bpd, allowing production to continue even when exports flatline, up until onshore and floating storage capacity is fully exhausted.

First Half of June: Peak Constraint During the first ~17 days of June, Iran hit those storage limits. The EIA forecast that shut-ins would rise through June as storage maxed out eia.gov, and early June exports hovered around a marginal 340 kb/d reuters.com. Production during this period was likely forced down toward the domestic refining floor, averaging roughly 1.7M–1.9M bpd kpler.comthenationalnews.comreuters.comeia.govbrookings.edu.

Second Half of June: Sanctions Relief and Rebound The operating environment shifted dramatically mid-month with the reopening of Hormuz, a US-Iran MOU (~June 17), and a 60-day US sanctions waiver (June 22) indexbox.ioreuters.comiea.org. Loadings accelerated rapidly to ~1.6M bpd reuters.com, and a massive late-June export surge (~30–36M barrels shipped) quickly drained storage en.wikipedia.org. However, this export surge must not be conflated with production. Much of the initial export volume was drawn from floating storage rather than immediate output reuters.comreuters.com. Production restarts inherently lag export recoveries due to capped wells and infrastructure damage, with estimates suggesting Iran may fall 100–150 kb/d short of pre-war capacity even in the near term spglobal.com. Still, production was visibly recovering late in the month, with Rystad estimating output reached 2.4M bpd by June 25 ajot.com.

Synthesizing the Distribution A time-weighted average of ~17 depressed days (~1.8M bpd) and ~13 recovering days (~2.2M–2.4M bpd) establishes a central estimate for the June average of approximately 2.05M–2.1M bpd.

• 1.6M to 1.8M bpd (92% to 84%): These levels are highly secure. The ~1.7M domestic refining floor, combined with the late-month recovery, makes an average below 1.8M improbable unless early-month infrastructure damage was unexpectedly severe.
• 2.0M bpd (54%): This is the key pivot point. If OPEC secondary estimators smooth or lag the late-month recovery signal, or if the restart was slower than estimated, the monthly average could easily slip slightly below 2.0M.
• 2.2M to 3.4M bpd (34% tapering to 2%): A full recovery to pre-war levels for the monthly average is mathematically out of reach because half the month was spent under extreme blockade and storage constraints. Higher thresholds are aggressively discounted, reflecting the mathematical drag of the first 17 days.