On what observation date will the EIA first report Cushing, Oklahoma ending stocks excluding SPR of crude oil below 18,000 thousand barrels?

• My median prediction for the EIA to first report Cushing ending stocks below 18,000 thousand barrels is 13th December 2026.
• As of the latest EIA observation on 3rd July 2026, stocks were at 19,614 thousand barrels, only 1,614 thousand barrels above the target threshold.
• Short-term momentum has flattened in July, with recent weekly changes showing near-flat inventory levels after significant draws throughout May and June.
• Market participants are actively defending an ‘operational floor’ near 20 million barrels by redirecting pipeline flows, which creates a strong technical barrier against falling below 18 million barrels.
• Global supply disruptions, specifically the ongoing closure of the Strait of Hormuz, continue to pull barrels out of Cushing for export, maintaining high pressure on the hub during the peak summer refinery season.
• While a breach is possible as early as late July or August 2026, there is a material probability that the threshold is never reached due to these physical and operational constraints.

Key figures

Historical context

Historically, Cushing is the most critical crude oil storage hub in the U.S., acting as the delivery point for NYMEX WTI futures. Its working capacity is approximately 76-78 million barrels. Observations below 18,000 thousand barrels are rare, occurring in only 8.5% of weeks since 2004. The hub typically operates between 30 and 40 million barrels. Significant historical ‘stress’ events occurred in 2008, 2014, and 2022-2023 when inventories approached the 20 million barrel mark. The most extreme event in the opposite direction occurred in April 2020, when a lack of available storage capacity at Cushing (as stocks hit 60 million barrels) led to the first-ever negative settlement of WTI oil prices. The current situation in 2026 is a mirror image of 2020, representing extreme scarcity rather than a glut. As of early July 2026, stocks are trading near the 5th to 10th percentile of their 20-year history.

Tailwinds

• Ongoing Strait of Hormuz shipping disruptions (near-certain through July) increasing reliance on U.S. domestic stocks for international supply.
• Peak summer refinery demand, which historically drives large commercial inventory draws through August and September.
• High volatility in weekly stock changes, with historical moves exceeding 2 million barrels in a single week being sufficient to breach the current buffer.
• Strong export demand from the U.S. Gulf Coast pulling crude out of mid-continent storage hubs.

Headwinds

• Active redirection of Permian pipeline flows away from the Gulf Coast and toward Cushing to maintain minimum physical inventories.
• Physical ‘tank bottom’ constraints where inventories below 20 million barrels become technically difficult to withdraw (unusable sludge and pressure loss).
• Recent stabilization in EIA and API data showing a shift from massive draws to near-flat inventory changes in early July 2026.
• Strategic Petroleum Reserve (SPR) releases of up to 172 million barrels intended to bridge global supply gaps and reduce the draw on commercial hubs.

Detailed reasoning

My analysis for the first observation of Cushing crude stocks below 18,000 thousand barrels is driven by the interplay between extreme physical tightness and the active defense of ‘tank bottom’ operational levels. As of July 3, 2026, inventories stood at 19,614 thousand barrels. This is approximately the 10th percentile of historical data since 2004 and sits only 1.6 million barrels above the target threshold.

The immediate momentum in May and June 2026 was highly bearish, featuring several weekly draws exceeding 1.5 million barrels, including a peak draw of 2.79 million barrels in late May. However, the data for late June and early July indicates a sharp flattening of this trend. The two most recent EIA reports showed a build of 709,000 barrels followed by a marginal draw of 52,000 barrels. Furthermore, preliminary API data for the week ending July 10 suggests that national stocks remained relatively flat, indicating that the immediate ‘qualifying’ window starting July 17 is unlikely to see a breach unless a high-volatility shock occurs.

The forecast heavily weights the ‘operational floor’ dynamic reported by market analysts. Industry standards identify 20 million barrels as the ‘operational stress level,’ below which the storage facility struggles to supply customers due to the presence of unusable sludge and loss of pipeline pressure. There is evidence that pipeline operators are actively redirecting flows from the Permian Basin toward Cushing—and away from Gulf Coast export terminals—specifically to maintain these minimum physical inventories. This creates a non-linear resistance level near 18-19 million barrels that is difficult to breach through normal market activity.

However, external factors provide a persistent ‘pull’ on these stocks. The Strait of Hormuz remains disrupted, with a near-zero probability of traffic returning to normal before August. This forces a continued reliance on U.S. domestic stocks to meet both high seasonal refinery demand (which typically peaks in August) and export commitments. My model assigns the highest weekly hazard to the period between late July and mid-August, as this is when the cumulative impact of these draws is most likely to overcome the floor defense.

If the threshold is not breached by the end of the summer refinery season (October), the probability of a breach in late 2026 drops significantly as the market enters the seasonal ‘build’ period. The forecast places a median date in mid-December to reflect a balanced view: a breach is highly plausible during the summer peak, but if the operational floor holds through September, a breach may be delayed until a subsequent seasonal cycle or a major supply-side shock in late 2026 or 2027. The total probability of the event ever occurring is estimated at roughly 58%, acknowledging that active management by terminal operators may successfully prevent a sub-18 million barrel print indefinitely.

Key uncertainties

• The efficacy of ‘operational floor’ management: it is unclear if pipeline rerouting can permanently offset the demand-side pull.
• Geopolitical developments: a peace deal or reopening of the Strait of Hormuz would immediately alleviate the pressure on Cushing.
• Data volatility: EIA weekly reports are subject to high variance, and a single outlier week (e.g., due to a pipeline leak or weather event) could trigger the resolution.
• Possible EIA data revisions or reporting delays: the resolution depends on the specific primary DNav series snapshot.

Conclusion

• The most critical period for a potential breach is late July through August 2026, when summer refinery demand and geopolitical disruptions in the Strait of Hormuz will exert maximum pressure on domestic inventories.
• Decision-makers should closely monitor the ‘Cushing to Gulf Coast’ pipeline flow data and regional refinery utilization rates, as a shift in these flows is the primary mechanism currently preventing a breach of operational floors.

Question: will EIA weekly Cushing crude stocks fall below 18.000 million barrels on one of the Fridays between 2026-07-17 and 2026-08-07? Forecasters agree the only eligible EIA end-dates are 2026-07-17, 07-24, 07-31 and 08-07, and that the Jul 3 official level (19.614 Mb) leaves Cushing only ~1.6–1.9 Mb above the threshold—so a breach is plausible but hinges on a very small number of weekly moves. All teams flag the Jul 10 API report (an indicated +238 kbbl build) and the upcoming Jul 15 EIA release as high-leverage information: if EIA confirms a Jul 10 build near 19.8–19.9 Mb, a Jul 17 breach would require an unusually large ~1.8–1.9 Mb one‑week draw. A Monte Carlo using recent draw rates gave first-crossing frequencies concentrated on Jul 17 (62%) but with caveats; forecasters downweight that number because late‑June flattening, the API build, and other signs (national commercial builds, lower exports, and self‑correcting reroutes to Cushing) make large one‑week draws less routine. Supporting pressure includes continued very high PADD 2 refinery runs and low operational stocks, while opposing forces are national builds, moderated export disruptions, and pipeline/flow adjustments that historically have rebounded near-misses (2018/2023) rather than sustained sub‑18 episodes (2014 is the closest analogue). Consequently forecasters place meaningful but not dominant probability on a breach during the window, with most assigning more mass to the later Fridays (Jul 24/31) than to Jul 17 and a substantial open probability that no qualifying sub‑18 print occurs by Aug 7.

Forecast and Reasoning

Forecast: Probability distribution:

• 10.00% chance of value below 2026-07-24 12:05:24 UTC
• 20.00% chance of value below 2026-07-31 13:13:18 UTC
• 40.00% chance of value below 2026-08-12 02:59:00 UTC
• 60.00% chance of value below 2026-08-12 02:59:00 UTC
• 80.00% chance of value below 2026-08-12 02:59:00 UTC
• 90.00% chance of value below 2026-08-12 02:59:00 UTC

Forecast Reasoning

Key facts from the analysts’ research:

• Latest available EIA DNav observation as of 2026-07-14 is week ending 2026-07-03 at 19,614 thousand barrels, after a recent low of 18,957 on 2026-06-19 and a rebound to 19,666 on 2026-06-26.
• The eligible End Dates in this question’s window are the weekly Friday end-dates: 2026-07-17, 2026-07-24, 2026-07-31, and 2026-08-07.

Inference:

• The threshold is 18,000, so from 19,614 the needed draw is ~1,614 kbbl. Weekly Cushing changes can be volatile, but the most recent couple of weeks in the series (a build then near-flat) suggest the earlier sharp drawdown may have stalled.
• This creates a meaningful chance of not seeing <18,000 on any of the four eligible End Dates, which would resolve to the open-after outcome (>2026-08-12T18:00:00Z). Forecasters 1–3 cluster around ~25–45% in-window probability, while forecaster 4 appears to overstate in-window likelihood and also uses several non-eligible dates in their percentile mapping.

Synthesis (my central estimate):

• I place ~35% probability that EIA reports <18,000 on one of the eligible End Dates (with risk increasing later in the window as cumulative draws have more time to occur), and ~65% probability of no qualifying observation by the resolution snapshot (open-after). This implies the median outcome is the open-after tail, and percentiles above ~35% should be placed strictly past the upper bound date to correctly encode that tail mass.

An amateur forecast is likely to (a) extrapolate the earlier May–mid-June draw trend mechanically and overweight the fact that 18,957 occurred recently, yielding an overconfident early-window breach, and/or (b) misuse the platform bounds by stacking mass at the deadline rather than placing it past-bound to represent “no qualifying observation.” My forecast explicitly conditions on (1) the latest EIA level (19,614) and the recent stabilization/rebound and (2) the discrete set of eligible weekly End Dates, producing a calibrated mixture: modest in-window breach probability with most mass in the open-after tail. Confidence: moderate, because weekly Cushing changes can be large and regime shifts can occur quickly.

Forecast rationale (numeric):

— Iteration 1 — The forecasts center on a simple starting point: Cushing is already close to the 18 million-barrel threshold, at about 19.6 million barrels, so only a relatively small additional draw is needed. That makes a near-term breach plausible, but not assured.

Main reasoning patterns

• Recent drawdown supports a near-term crossing: The late spring/early summer decline in stocks suggests the threshold could be reached within the next few weekly EIA reports.
• Operational constraints may slow further draws: Several forecasts note Cushing appears near an effective floor around 20 million barrels, meaning additional reductions may become harder and more expensive. This could slow the pace from the earlier rapid draw rate.
• Oil price weakness could reduce storage tightness: Falling crude prices are viewed as a sign that the market is less constrained, which could ease demand for draws and delay a sub-18 million print.
• Uncertainty is high because future inventory behavior can reverse: If inventories stabilize or rebuild during seasonal shifts, the first sub-18 million observation could be pushed well beyond the near term.

Areas of consensus

• The threshold is close enough that the event is plausible within the forecast horizon.
• Probability is highest on the later Friday observation dates in the near-term window, rather than immediately.
• There is substantial downside uncertainty, with a meaningful chance the crossing does not occur until well after the next few EIA releases.

Key disagreement

• Some forecasts place the most likely first breach in late July to early August, with the strongest weight on the final eligible date in that window.
• Others argue the draw pace will slow enough that the median date is later, around early September, with a long tail extending much further out.

Overall, the shared view is that Cushing is near the threshold but not on a guaranteed path through it; the timing hinges on whether recent draws continue or whether operational and price-related constraints cause inventories to flatten or rebound.

— Iteration 2 — Across the forecasts, the main logic is that Cushing inventories are only modestly above the 18.0 million barrel threshold—roughly in the 19.0–19.6 million barrel range—so the question hinges on whether a large enough draw, on the order of ~1.6 million barrels, happens quickly enough in the next few weekly EIA reports.

Main factors driving the outlook

• Proximity to the threshold: The gap to 18 million barrels is not huge, so a short run of strong draws could trigger the first sub-18 reading relatively soon.
• Recent trend weakening: The latest weekly draw was described as much smaller than earlier declines, suggesting that downward momentum in stocks has slowed.
• Price signal from WTI: A sharp fall in WTI crude prices was interpreted as evidence of a looser physical market, which tends to favor inventory builds rather than further rapid draws.
• Operational floor effects: Because Cushing is already near historically low levels, some reasoning emphasizes that inflows and stabilization may limit how far stocks can fall in the near term.
• Path dependence: If the threshold is not breached soon, the market may shift into a regime where it takes much longer to get below 18 million again.

Areas of consensus

• The most likely near-term window for a first sub-18 report is late July to early August 2026.
• If the breach happens soon, it is more likely to occur toward the later weekly observations rather than immediately.
• The event is viewed as possible but not assured, rather than overwhelmingly likely.

Areas of disagreement

• Some forecasts assign a moderate chance of a breach in the next few weeks.
• Others are more skeptical, arguing that the recent price drop and slowing draws imply stocks could build instead, pushing the breach out by months or even years.
• There is broad uncertainty about whether the threshold is a near-term event or whether Cushing may remain above it for an extended period due to low-level inventory dynamics.

Overall synthesis

The shared view is that Cushing is close enough to 18 million barrels that a near-term breach is plausible, but the combination of slowing draws, weaker oil prices, and possible inventory rebuilds makes it far from certain. The central forecast judgment is a late-summer 2026 risk window, with substantial uncertainty and a meaningful possibility that the first sub-18 reading does not occur until much later.

— Iteration 3 — Across the forecasts, the reasoning centers on a few shared points:

• Starting level is close but still above the threshold: Cushing stocks were cited around 19.6 million barrels, so the market needs roughly a 1.6 million barrel draw to get below 18.0 million.
• The event can only resolve on weekly EIA observation dates: All forecasts focus on the four eligible Fridays in the window: July 17, July 24, July 31, and August 7, 2026.
• Recent weekly moves have been modest: One key argument is that the latest changes were small, making such a large draw over only a few weeks possible but not strongly supported by recent momentum.
• Price and spread signals point to weaker near-term tightening: The sharp WTI price decline and narrower WTI-Brent spread are interpreted as signs of a softer physical market, which may reduce the likelihood of a rapid inventory draw and can even favor builds.
• Low inventories create uncertainty: Even with bearish price signals, some forecasts note that very low stock levels can trigger offsetting flow adjustments, so a crossing by late July or early August remains plausible.

Areas of consensus

• The threshold is close enough that a near-term crossing is plausible.
• The most likely qualifying dates, if it happens in the window, are among the four July/August Friday observation dates.
• There is substantial uncertainty, so the event is not seen as guaranteed.

Main disagreement

• One forecast leans more toward a crossing by August 7 as the central outcome.
• The others are more cautious, giving low-to-moderate probability to a crossing within the window and assigning more weight to a later first sub-18 million report, potentially well beyond August 2026.

Unified takeaway

Overall, the models see Cushing stocks as near the trigger but not clearly on track to break below 18 million barrels immediately. The balance of evidence is mixed: the level is close enough for a short-term breach, but recent inventory dynamics and market signals suggest the more likely outcome is either a late-window crossing or a delay to a later date if draws do not accelerate.

Summary of Rationale Arguments

The consensus across the provided rationales strongly indicates that Cushing, Oklahoma crude oil stocks are highly unlikely to fall below the 18-million-barrel threshold within the eligible reporting window. The reasoning relies on a synthesis of operational limitations, market self-correction mechanisms, and recent inventory trends.

Physical and Operational Constraints (“Tank Bottoms”) The most heavily cited barrier to reaching the threshold is the physical limitation of the Cushing infrastructure. Industry standard places Cushing’s absolute operational minimum—often referred to as “tank bottoms”—between 20 and 22 million barrels. Dropping below 18 million barrels represents a severe mechanical hazard; at such low levels, operators risk drawing up unusable sludge, sediment, and water. Attempting to pump oil below this floor threatens to compromise hydraulic pipeline pressure and cause structural damage to floating roof tanks. Consequently, terminal operators will practically halt outbound flows rather than breach this physical limit.

Market Self-Correction Mechanisms The rationales emphasize that the oil market actively and aggressively defends this operational floor. As inventories have approached the physical limits, price dynamics have shifted to disincentivize further withdrawals. Localized price spikes, narrowing spreads between Cushing and the Gulf Coast, and shifts in the WTI futures curve economically penalize exports. In response to these market signals, pipeline operators are reportedly rerouting inland crude flows specifically to backfill the distressed hub and maintain minimum required pipeline pressures.

Current Baseline and Drawdown Trajectory While reaching the 18-million-barrel mark mathematically requires a relatively small drawdown from the current baseline of approximately 19.6 million barrels, the timeline to achieve this is incredibly brief, restricted to just four eligible EIA weekly reporting dates. Furthermore, recent data indicates that the massive drawdowns experienced earlier in the summer have effectively halted. Supported by strategic government SPR releases, sanctions relief on foreign oil, and upcoming autumn refinery maintenance, the depletion rate has flattened, indicating that operators are successfully defending the operational minimums.

Conclusion Given the immense physical dangers of draining the tanks to 18 million barrels, coupled with the market’s successful structural and economic interventions to prevent it, the rationales universally agree that breaching the threshold is highly improbable. The overwhelming consensus is that the necessary drawdown will not occur before the final qualifying observation date, pushing the outcome to an out-of-bounds default resolution.

SUMMARY

Question: On what observation date will the EIA first report Cushing, Oklahoma ending stocks excluding SPR of crude oil below 18,000 thousand barrels? Final Prediction: Probability distribution:

• 10.00% chance of value below 2026-07-28 12:00:00 UTC
• 20.00% chance of value below 2026-08-04 12:00:00 UTC
• 40.00% chance of value below 2026-09-08 12:00:00 UTC
• 60.00% chance of value below 2027-02-03 12:00:00 UTC
• 80.00% chance of value below 2027-11-25 12:00:00 UTC
• 90.00% chance of value below 2028-12-15 00:00:00 UTC

Total Cost: extra_metadata_in_explanation is disabled Time Spent: extra_metadata_in_explanation is disabled LLMs: extra_metadata_in_explanation is disabled Bot Name: extra_metadata_in_explanation is disabled

Report 1 Summary

Forecasts

Forecaster 1: Probability distribution:

• 10.00% chance of value below 2026-08-01 00:00:00 UTC
• 20.00% chance of value below 2026-08-08 00:00:00 UTC
• 40.00% chance of value below 2026-09-30 00:00:00 UTC
• 60.00% chance of value below 2027-06-30 00:00:00 UTC
• 80.00% chance of value below 2028-12-31 00:00:00 UTC
• 90.00% chance of value below 2030-12-31 00:00:00 UTC

Forecaster 2: Probability distribution:

• 10.00% chance of value below 2026-07-24 23:59:59 UTC
• 20.00% chance of value below 2026-08-01 00:00:00 UTC
• 40.00% chance of value below 2026-08-18 00:00:00 UTC
• 60.00% chance of value below 2026-09-10 00:00:00 UTC
• 80.00% chance of value below 2026-10-20 00:00:00 UTC
• 90.00% chance of value below 2026-11-30 00:00:00 UTC

Research Summary

The research states that as of the EIA weekly report on July 3, 2026, Cushing, Oklahoma ending stocks excluding SPR were 19.614 million barrels, and the Metaculus question asks whether reported ending stocks will fall below 18.0 million barrels during the four weekly EIA reports with week-ending dates between July 14, 2026 and August 7, 2026. It highlights large supply shocks — including a de facto closure of the Strait of Hormuz and heightened US–Iran tensions — driving global tightness, a surge in US crude exports to roughly 6.4 million b/d, and SPR depletion to about 316.5 million barrels; Wood Mackenzie was cited warning Cushing utilization had fallen below ~29% and was approaching an operational floor near 18 million barrels. At the same time, near-term countervailing developments were noted: pipeline operators reportedly have been diverting Permian flows toward Cushing to avoid breaching minimum operating levels, and API data for the week ending July 10, 2026 showed a Cushing build of about 238,000 barrels.

For reference-class and market context, the research emphasizes that Cushing stocks under 18 million barrels are historically rare (notable occurrences in 2004, 2007, and 2014), that the 18–20 million range is commonly described as a “tank bottom” or operational floor which markets and physical flows tend to avoid, and that mechanical/market self-corrections (e.g., widening WTI spreads to attract inflows) reduce the probability of a rapid breach. Given the July 3, 2026 level (19.614M) and the recent API-reported Cushing build, the report concludes breaching 18.0M within the narrow four-week window would require an unusually large and uninterrupted drawdown. It also cites relevant prediction-market activity (Polymarket, Kalshi) and related trading volumes and accuracy claims as outside-view indicators that traders are actively pricing geopolitical and inventory risks into markets.

Sources/websites used: https://www.eia.gov https://www.api.org https://www.woodmac.com https://polymarket.com https://kalshi.com https://www.metaculus.com

RESEARCH

Report 1 Research

Hello! I have completed a detailed rundown of the most relevant news, base rates, and prediction market dynamics to help you forecast this Metaculus question. Here is a comprehensive synthesis of my findings.

Current State & The Target Metric

As of July 3, 2026, the EIA reported Cushing ending stocks (excluding SPR) at 19.614 million barrels [11][13]. The question asks if this figure will drop below 18.0 million barrels (18,000 thousand barrels) for any weekly reporting period ending between July 14, 2026, and August 7, 2026. This is a very narrow window comprising just four upcoming EIA weekly reports.

Relevant News Rundown

The macro environment is currently dominated by extreme supply shocks and geopolitical turmoil, pulling aggressively on U.S. commercial crude:

• Strait of Hormuz Closure & US-Iran Conflict: Escalating conflict between the US and Iran, combined with the Trump administration’s reinstated blockades and tolls, has effectively paralyzed shipping in the Strait of Hormuz [2][3].
• Surging US Exports: To backfill the global supply deficit, US crude exports have surged to a record 6.4 million barrels per day, up from about 4 million bpd before the conflict [4][15].
• Strategic Petroleum Reserve (SPR) Depletion: The US SPR has been drained to roughly 316.5 million barrels—its lowest level since 1983—leaving the market without a reliable buffer to offset commercial inventory draws [1][2].
• Approaching the “Operational Floor”: In late June, Wood Mackenzie warned that Cushing’s storage utilization dropped below 29%, coming perilously close to an all-time low operational floor of around 18 million barrels [15].
• Countervailing Forces (The Bear Case for a Drop): Despite these massive draws, there is intense industry resistance to letting Cushing drop below 18 million barrels. Pipeline operators in the Permian Basin have actively begun diverting crude flows toward Cushing to prevent it from dropping below minimum operating levels [15]. Furthermore, fresh American Petroleum Institute (API) data for the week ending July 10, 2026, indicated that while total US crude inventories fell, Cushing inventories actually rose by 238,000 barrels [1].

Base Rates & Reference Classes

To ground your forecast, consider these historical frequencies and structural benchmarks:

• Historical Frequencies: Over the last decade, Cushing stocks have generally fluctuated between 20 million and 40 million barrels [11]. Drops below 18 million are exceptionally rare, having only occurred notably in 2004, 2007 (during a major Valero refinery shutdown), and 2014 [17][18].
• The “Tank Bottom” Reference Class: The 18 to 20-million-barrel range is widely recognized by industry analysts as the “tank bottom” or operational floor [16]. Dropping below 18 million is considered technologically difficult, as it compromises oil quality, tank pressure, and pipeline functionality [3][16]. Because Cushing is the physical delivery point for West Texas Intermediate (WTI) futures, dropping below this floor threatens the integrity of commodities market functioning [16][18]. As a result, the market tends to force self-correcting mechanisms—like widening WTI price spreads to incentivize Permian inflows—before the 18 million mark is breached [15].
• Time Window Constraints: You only have a 4-week window (July 14 – Aug 7) for this event to occur. Given the July 3 reading of 19.6M barrels [11] and the recent API report of a slight Cushing build [1], stocks would need an aggressive, uninterrupted collapse to cross the 18M threshold in just a few weeks, fighting physical infrastructure limits along the way.

Prediction Markets & Liquidity

While exact prediction markets for this specific Metaculus threshold are niche, the broader ecosystem (which has exploded in 2026 with billions in volume) offers reliable proxies for the macro drivers:

• Oil Inventory Proxies: Polymarket recently resolved a highly comparable market (“Will US crude oil reserves fall to [X] by June 5?”) which saw $163,847 in trading volume, indicating moderate, well-calibrated attention from energy traders [12].
• Global Oil Price Speculation: Polymarket’s “Crude Oil all time high by…?” market currently boasts $1.7 million in trading volume [24]. The relatively high liquidity here suggests traders are heavily pricing in the continued supply constraints from the Middle East.
• Geopolitical Drivers: Geopolitical prediction markets related to the Strait of Hormuz and US-Iran relations are some of the fastest-growing on Polymarket, with over $18 million traded across 20 active contracts as of mid-2026 [21].
• Reliability: Platforms like Polymarket and Kalshi have seen massive institutional adoption in 2026, processing tens of billions in volume [20][26]. Polymarket’s historical ~94% one-month accuracy on high-volume geopolitical markets means the odds derived from these correlated markets are a strong outside-view anchor [24].

I hope this rundown gives you a solid foundation for your forecast. Let me know if you need me to dig deeper into any specific indicator!

FORECASTS

R1: Forecaster 1 Reasoning

Updated reasoning

I accept the critic’s central case for a downward revision from 33%.

Valid criticisms

1. The historical reference class was too brittle. Treating 2005, 2007, and 2008 as three clean, independent episodes gives a false sense of precision. Depending on the starting rule, comparable low-inventory periods took anywhere from two weeks to several months to breach 18 million barrels. I now treat this history as a broad plausibility check rather than a numerical anchor. (eia.gov)

2. The “operational floor” is not exactly the EIA threshold. Wood Mackenzie’s monitored inventory universe differs from the counted EIA series. Its analysis demonstrates a self-correcting physical-market response, particularly increased Permian flows toward Cushing, but it does not make 18 million in the EIA series an impermeable boundary. (woodmac.com)

3. Local balances deserve much more weight than broad macro narratives. Prediction-market volume, the headline SPR level, and global export figures are weak proxies for this specific weekly stock measurement. I am effectively removing the prediction-market material from the forecast.

4. The earlier hazard schedule was insufficiently justified. More elapsed time creates more opportunities for cumulative draws, but survival without a breach also indicates that defensive flows may be working. The hazard should rise only moderately, not mechanically.

Evidence favoring no qualifying observation

The official EIA trajectory has changed substantially: inventories fell to 18.957 million barrels on June 19 but then recovered to 19.666 million on June 26 and remained nearly unchanged at 19.614 million on July 3. The next EIA release, covering the non-eligible July 10 observation, is scheduled for July 15. (eia.gov)

The API estimate of a 238,000-barrel Cushing build suggests that the July 10 starting point could be approximately 19.8 million barrels. If approximately correct, the first eligible observation would need a one-week draw approaching two million barrels to qualify immediately. API–EIA discrepancies prevent treating this as decisive, but it materially reduces the July 17 hazard. (forexfactory.com)

The strongest direct expert evidence is Energy Aspects’ assessment that it views July Cushing balances as “solved,” together with observed redirection of Permian barrels toward Cushing. These are more relevant than generic oil-market tightness because they describe the endogenous response at the actual hub. (energyaspects.com)

The global crude backdrop has also loosened somewhat. The IEA reported a 4.1 million-barrel-per-day global supply rebound in June, recovering Gulf exports, lower benchmark prices, and prompt spreads returning to contango. Those conditions reduce the incentive to drain scarce prompt Cushing barrels and can support storage. (iea.org)

Why I am not going below roughly 25%

The threshold remains only around 1.6–1.9 million barrels below the likely July 10 starting level. Weekly Cushing movements are lumpy, and historical data show that declines of this magnitude over one or two weeks are possible. In 2014, for example, stocks fell from 20.273 million to 17.899 million in two weeks. (eia.gov)

Moreover, the global normalization is incomplete. The IEA reported that Gulf exports and production remained substantially below pre-war levels, while the renewed hostilities of July 7–8 clouded the outlook. High refinery margins also preserve the possibility of continued strong crude demand. (iea.org)

The operational-floor mechanism should therefore reduce the probability of a sustained decline, but it cannot eliminate a temporary sub-18 EIA print caused by survey timing, pipeline nominations, or a renewed inbound disruption.

Revised probabilities

I reduce the total probability of a qualifying observation from 33% to 27%, approximately distributed as:

• July 17: 3%
• July 24: 6%
• July 31: 8%
• August 7: 10%
• No qualifying observation: 73%

The slightly increasing later first-hit mass reflects the possibility of cumulative depletion, but the increase is restrained because each non-breach provides evidence that the Cushing-directed inflow response is holding. The largest remaining uncertainty is the July 10 EIA reading: a substantial EIA draw would move the forecast upward, while confirmation of the API build would move it modestly downward.

Updated prediction:

Percentile 0.1: 2026-07-18
Percentile 1: 2026-07-18
Percentile 5: 2026-07-25
Percentile 10: 2026-08-01
Percentile 20: 2026-08-08
Percentile 30: 2026-08-20
Percentile 40: 2026-09-30
Percentile 50: 2026-12-31
Percentile 60: 2027-06-30
Percentile 70: 2027-12-31
Percentile 80: 2028-12-31
Percentile 90: 2030-12-31
Percentile 95: 2035-12-31
Percentile 99: 2045-12-31
Percentile 99.9: 2060-12-31

R1: Forecaster 2 Reasoning

Updated reasoning

The Round 2 critic identifies the strongest reason to reduce my previous 41% estimate: the recent stabilization appears Cushing-specific, rather than merely reflecting broad market relief. Cushing rose from 18.957 million barrels on June 19 to 19.666 million on June 26 and remained near that level at 19.614 million on July 3. This occurred while Midwest refinery utilization remained approximately 100%, so collapsing local refinery demand does not explain the stabilization. Meanwhile, official weekly crude exports fell from 5.874 million barrels per day on May 29 to 3.262 million on July 3. (eia.gov)

The preliminary API estimate of a 238,000-barrel Cushing build for July 10 strengthens that evidence. If directionally correct, it suggests both a starting level around 19.85 million barrels and a third consecutive week without a significant draw. The critic is right that this is evidence about the underlying regime, not merely an extra 238,000 barrels of distance from the threshold. However, API is not the resolving source, and the corresponding EIA observation was not scheduled for release until July 15. (forexfactory.com)

I nevertheless retain substantial breach probability for three reasons:

1. The remaining buffer is still thin. Even after the estimated API build, approximately 1.85 million barrels would separate stocks from the threshold. The official series recently recorded weekly declines of 1.604, 2.794, 1.606, and 1.077 million barrels, demonstrating that two moderate draws—or one unusually large draw—could suffice. (eia.gov)
2. The floor is probabilistic rather than absolute. Wood Mackenzie described an exceptionally thin buffer and documented sharply increased Permian flows toward Cushing. Historical EIA data also show that stocks can print below 18 million, including the rapid July 2014 decline from 20.273 million to 17.899 million in two weeks. (woodmac.com)
3. The defensive response may have limited additional capacity. A key Permian-to-Cushing pipeline was already reportedly operating at maximum volumes. That supports the stabilization thesis, but it also means the system may have less remaining elasticity if export or refinery pull strengthens again. (news.bloomberglaw.com)

A further refinement is that the renewed blockade applies principally to Iranian ports and cargo, rather than mechanically stopping all non-Iranian Gulf exports. Commercial traffic remains constrained and hostilities have escalated, but the IEA reported that Gulf exports recovered substantially during June before the July 7–8 escalation. Thus, renewed conflict raises the downside risk without guaranteeing an immediate return to record U.S. export demand or Cushing withdrawals. (apnews.com)

Revised probability allocation

I reduce the total qualifying-breach probability from 41% to 35%:

• July 17: 4%
• July 24: 9%
• July 31: 12%
• August 7: 10%
• No qualifying observation: 65%

July 31 remains the modal breach date: it allows time for renewed geopolitical pressure to affect nominations and physical flows. August 7 receives slightly less probability because survival through three additional observations would increasingly confirm that the local corrective mechanism is durable. No material annulment concern is apparent.

The percentile dates for exact weekly observations are shifted forward one day to respect the non-inclusive convention.

Updated prediction:
Percentile 0.1: 2026-07-18
Percentile 1: 2026-07-18
Percentile 5: 2026-07-25
Percentile 10: 2026-07-25
Percentile 20: 2026-08-01
Percentile 30: 2026-08-08
Percentile 40: 2026-08-18
Percentile 50: 2026-08-28
Percentile 60: 2026-09-10
Percentile 70: 2026-09-25
Percentile 80: 2026-10-20
Percentile 90: 2026-11-30
Percentile 95: 2027-01-15
Percentile 99: 2027-04-15
Percentile 99.9: 2027-07-14

Frontier Forecast — Post 615

Modal: Aug 12, 2026 to Sep 11, 2026 (43.3%) • frontier aggregate • 5m45s

Interpret Summary

• Reading: strict
• Type: strict
• Window: Qualifying End Dates on or after 2026-07-14 and on or before 2026-08-07, as reported in the EIA primary DNav series and publicly available by the resolution snapshot

Resolution sources/checks:

• https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?f=W&n=PET&s=W_EPC0_SAX_YCUOK_MBBL: https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?f=W&n=PET&s=W_EPC0_SAX_YCUOK_MBBL - Resolver URL extracted mechanically from resolution criteria
• https://www.eia.gov/petroleum/supply/weekly/: https://www.eia.gov/petroleum/supply/weekly/ - Resolver URL extracted mechanically from resolution criteria

Edge cases:

• EIA weekly End Dates are typically Fridays — the eligible window spans at most ~4 weekly observations (e.g., 2026-07-17, 2026-07-24, 2026-07-31, 2026-08-07), but the exact End Date for the week containing 2026-07-14 must be confirmed.
• Reports are typically released ~6 days after the End Date (following Wednesday); the 2026-08-07 End Date report would normally publish around 2026-08-12, just within the second resolution attempt window — availability at the first attempt…
• If stocks are already below 18,000 thousand barrels at forecast time (2026-07-14), a very early End Date could qualify — the current level must be checked against the threshold.

Temporal Support

• Policy

  • explicit_publication_dates / first_passage_scheduled

• Source cadence

  • explicit_release_calendar

• Candidate dates

  • 2026-07-15, 2026-07-17, 2026-07-22, 2026-07-24, 2026-07-29, 2026-07-31, +2 more; residual/no-hit: ?

• Status

  • candidate

• Warnings

  • Derived 9 candidate date(s) from structured source-calendar cadence.; Temporal support is diagnostic only. Verify explicit_release_calendar before concentrating mass on candidate dates.

Frontier Views (5/5)

• frontier_1 - Modal: Aug 12, 2026 to Sep 11, 2026 (69.0%)

  • Starting level appears around 19.5–19.6 million barrels as of early July 2026, implying a >1.6 million barrel draw needed to breach 18,000 within four eligible Fridays (07/17, 07/24, 07/31, 08/07). Weekly volatility can reach ~0.5–1.5 million barrels in tight markets, but recent prints do not show persistent large draws.

• frontier_2 - Modal: Aug 12, 2026 to Sep 11, 2026 (89.0%)

  • The question asks for the earliest EIA End Date (Fridays, 2026-07-14 to 2026-08-07) on which Weekly Cushing OK ending stocks excl. SPR (series W_EPC0_SAX_YCUOK_MBBL) drops below 18,000 thousand barrels; if none by 2026-08-12 18:00 UTC it resolves ‘>2026-08-12T18:00:00Z’.

• frontier_3 - Modal: After Dec 10, 2026 (17.0%)

  • The resolution criteria require the EIA to report Cushing, OK ending stocks (excluding SPR) below 18,000 thousand barrels (18 million barrels) for an observation End Date between July 14, 2026, and August 7, 2026. Recent EIA data shows Cushing inventories hovered at roughly 19.65 million barrels as of early July 2026.

• frontier_4 - Modal: Jul 14, 2026 to Jul 21, 2026 (25.0%)

  • Window opened 2026-07-14 with no observations yet reported; eligible Friday End Dates are 2026-07-17/24/31 and 2026-08-07. No current Cushing stocks value or trend visible from primary resolver sources, so probability is distributed evenly across the four in-window candidates with residual mass on the post-deadline bin.

• frontier_5 - Modal: Aug 12, 2026 to Sep 11, 2026 (30.0%)

  • EIA primary series W_EPC0_SAX_YCUOK_MBBL shows Cushing weekly stocks at 19,614 thousand barrels for week ending 2026-07-03 (released 2026-07-08). Series trajectory: 21,640 (06/05) → 20,030 (06/12) → 18,961 (06/19, near 12-year low) → 19,670 (06/26, build of +0.709 MMB) → 19,614 (07/03, draw of -0.052 MMB).

Adjudication

• Material notes

  • frontier_3: flag_only/warning - Post-deadline mass is spread too diffusely relative to the agent’s own justification that the event is unlikely in-window but not especially more likely at remote months.
  • frontier_4: flag_only/warning - Did not use available numeric primary-series anchor; defaults to a prior-heavy, high in-window probability that other lanes’ EIA-extraction contradicts.

• Guidance

  • frontier_3: post-deadline mass is spread diffusely into remote months despite its own rationale pointing toward a concentrated ‘no hit by deadline’ residual; consider querying agent to justify the long uniform tail.

• Revision

  • Frontier revision skipped: no_selected_adjudicator_reviews.

Final Distribution (date ranges)

Sources Checked

• Resolver: Resolver URL extracted mechanically from resolution criteria - https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?f=W&n=PET&s=W_EPC0_SAX_YCUOK_MBBL
• Resolver: Resolver URL extracted mechanically from resolution criteria - https://www.eia.gov/petroleum/supply/weekly/
• frontier_1: https://www.eia.gov/petroleum/supply/weekly/pdf/wpsrall.pdf
• frontier_2: EIA DNav series W_EPC0_SAX_YCUOK_MBBL / TradingEconomics
• frontier_2: serper_search / energiesmedia / tankterminals
• frontier_2: tankterminals.com, Reddit/Kpler summary

wooley_rhino • run 5289296e • $2.52 • 5m45s

Extracted Date Percentile Values: {0.1: 1784246400.0, 1.0: 1784246400.0, 5.0: 1784851200.0, 10.0: 1784851200.0, 15.0: 1785456000.0, 20.0: 1785456000.0, 25.0: 1786060800.0, 30.0: 1786492800.0, 35.0: 1786492800.0, 40.0: 1786492800.0, 45.0: 1786492800.0, 46.0: 1786492800.0, 47.0: 1786492800.0, 48.0: 1786492800.0, 49.0: 1786492800.0, 50.0: 1786492800.0, 51.0: 1786492800.0, 52.0: 1786492800.0, 53.0: 1786492800.0, 54.0: 1786492800.0, 55.0: 1786492800.0, 60.0: 1786492800.0, 65.0: 1786492800.0, 70.0: 1786492800.0, 75.0: 1786492800.0, 80.0: 1786492800.0, 85.0: 1786492800.0, 90.0: 1786492800.0, 95.0: 1786492800.0, 99.0: 1786492800.0, 99.9: 1786492800.0}

Model’s Answer:

Analysis

Step one: Identify the reporting cadence and eligible resolution dates.

The EIA releases the Weekly Petroleum Status Report every Wednesday at 10:30 AM ET, with “End Dates” that are Fridays. The current series shows July 3, 2026 (Friday) as the most recent observation. Within the eligible window (End Date ≥ 2026-07-14, ≤ 2026-08-07), the Fridays are:

• 2026-07-17
• 2026-07-24
• 2026-07-31
• 2026-08-07

If none of these yields a sub-18,000 reading, the question resolves as “>2026-08-12T18:00:00Z” which I’ll treat as the “no resolution” bucket anchored at 2026-08-12.

Step two: Establish current level and required change.

As of the week ending July 3, 2026: ~19,614 thousand barrels. The threshold is below 18,000 thousand barrels. Required drawdown: at least 1,615 thousand barrels from current levels.

Step three: Assess recent draw rates and trend.

• Spring 2026 (April–mid-June): ~1,000,000 barrels/week average drawdown
• Recent weeks: slowed dramatically to ~52,000 barrels/week
• The June 19 low was 18,957 thousand barrels — a partial rebound to 19,614 has since occurred
• The threshold has never been breached (June 19 low was ~957k above 18,000)

Over 4 possible weeks, crossing 18,000 requires averaging ≥404k barrels/week of draws — far above the current ~52k/week pace, but not unprecedented given what happened in spring.

Step four: Key assumptions whose failure would alter this forecast.

Assumption A: The spring draw pace (~1M/week) has sustainably slowed. If the spring-like pace resumes, crossing 18,000 becomes probable within the window. I’d put ~25% probability this assumption is wrong enough to matter.

Assumption B: No major supply disruption causes a rapid acceleration (new pipeline outage, geopolitical escalation). Probability of failure: ~15%.

Assumption C: Current market dynamics (strong exports, high refinery runs) persist but at a moderated pace. Probability of failure in either direction: ~30%.

Step five: Probability estimates by date.

Given the 1,615k-barrel gap and recent ~52k/week draws, the probability of breaching the threshold is roughly 28% within the window, concentrated toward the later weeks (more time for accumulating draws):

• 2026-07-17: ~3% (would need a single-week draw of >1,600k — very unusual)
• 2026-07-24: ~7% (two weeks averaging >800k each — well above current pace)
• 2026-07-31: ~9% (three weeks averaging ~540k — plausible if trend reverses)
• 2026-08-07: ~9% (four weeks averaging ~400k — possible with moderate re-acceleration)
• No qualifying observation → resolves as 2026-08-12: ~72%

Earlier outcome reasoning: A sudden large export-driven or geopolitical shock could trigger draws of 1M+ barrels/week, potentially bringing stocks below 18,000 by July 24. This scenario is possible given 2026 market disruptions but unlikely given the stabilization in recent weeks. Probability: ~10% for July 24 or earlier.

Later outcome reasoning: If draws stay minimal (~50-100k/week) or inventories rebuild (as they did from June 19 to July 3), the threshold will not be breached within the window, resolving as “no qualifying observation” on August 12. This is the modal outcome at ~72%.

Percentile .1: 2026-07-17 Percentile 1: 2026-07-17 Percentile 5: 2026-07-24 Percentile 10: 2026-07-24 Percentile 15: 2026-07-31 Percentile 20: 2026-07-31 Percentile 25: 2026-08-07 Percentile 30: 2026-08-12 Percentile 35: 2026-08-12 Percentile 40: 2026-08-12 Percentile 45: 2026-08-12 Percentile 46: 2026-08-12 Percentile 47: 2026-08-12 Percentile 48: 2026-08-12 Percentile 49: 2026-08-12 Percentile 50: 2026-08-12 Percentile 51: 2026-08-12 Percentile 52: 2026-08-12 Percentile 53: 2026-08-12 Percentile 54: 2026-08-12 Percentile 55: 2026-08-12 Percentile 60: 2026-08-12 Percentile 65: 2026-08-12 Percentile 70: 2026-08-12 Percentile 75: 2026-08-12 Percentile 80: 2026-08-12 Percentile 85: 2026-08-12 Percentile 90: 2026-08-12 Percentile 95: 2026-08-12 Percentile 99: 2026-08-12 Percentile 99.9: 2026-08-12

Cushing’s stock range is constrained by finite tank capacity, pipeline throughput, and its role as a delivery hub for a major futures benchmark.

Only specific weekly End Dates within the 2026-07-14 to 2026-08-07 window can legally resolve the question, so the eligible prints are structurally limited.

Recent weekly prints show inventories near the low operational band after a multiweek draw that bottomed just above 19 million barrels and then ticked up modestly.

Short-run pressures are dominated by refinery inputs, import flows, and Permian routing into Cushing, which recently offset further unilateral draws.

A single large operational draw or abrupt export/production diversion can produce a sub-18,000 reading in one eligible week, whereas normal volatility typically yields small builds or shallow draws.

Geopolitical shocks to shipping or sudden changes in refinery utilization are the primary plausible inflection points that substantially raise near-term draw risk.

Key unresolved uncertainties include the still-unpublished July 10 official end-date observation, known weekly sampling and timing differences between industry estimates and official data, and a thin modern reference class for sub‑18 million episodes.

Sensitivity to private pipeline nominations, tank-level behavior, and the timing mismatch between industry signals and the official weekly End Date leaves substantial residual uncertainty about which eligible Friday, if any, will first report below 18,000.

Forecast (median): 2026-08-04

• The latest confirmed Cushing stocks referenced are above the 18,000 threshold (so the question hinges on how fast they fall from there).
• Near-term downside pressure is expected to re-accelerate if a recent Middle East/Hormuz-related disruption persists, pulling more oil into exports.
• A counterforce is that the series has recently shown stabilization, which makes an immediate plunge less likely.
• As inventories get very low, the market may hit a practical “floor” effect—making further draws harder—so the crossing may come later rather than immediately.
• Putting it together, the most likely first qualifying EIA weekly report is in the late-July to early-August cluster, with the center of that range landing around 2026-08-04.