Establish the current SPR level and weekly trend from FRED, extrapolate to August 2026, then adjust for the probability and magnitude of a mid-2026 release (sq2) versus continued refill (sq3), blending these correlated factors into a central level estimate with uncertainty.
## Cross-Market Signals ### No signal found
1. [sq1 | fred_data | WEAK cred 20 | NEUTRAL | VERY_RECENT] FRED weekly SPR series was queried but no numerical values were returned in the research output. 2. [sq1 | code_execution | WEAK cred 20 | NEUTRAL | VERY_RECENT] A Monte Carlo extrapolation of the weekly SPR trend to August 2026 was set up but produced no reported output values. 3. [sq2 | claude_news | MODERATE cred 50 | NEUTRAL | RECENT] Source article (Wolf Street, June 2026) references government using SPR releases to combat oil-price spikes, described as having 'worked for a second time.' 4. [sq2 | claude_news | WEAK cred 20 | NEUTRAL | VERY_RECENT] No specific confirmed details on the size, timing, or duration of a mid-2026 SPR release were returned in the research. 5. [sq3 | claude_news | WEAK cred 20 | NEUTRAL | VERY_RECENT] No confirmed data returned on continuation or pace of SPR refill purchases/deliveries through summer 2026. ## Cross-Market Signals ### No signal found Information gaps: - Actual current SPR inventory level and weekly delta from EIA/FRED - Confirmed size and timing of any mid-2026 SPR release - Status and rate of SPR refill purchases in summer 2026 - Historical base rate for SPR weekly drawdown/refill magnitudes Key uncertainties: - Whether a mid-2026 oil-price spike triggers another release - Net direction of inventory: refill vs. drawdown - Magnitude of any policy-driven change by August 2026 - Reliability of the source article's 'second time' release claim
You are an elite superforecaster. Produce a probability distribution over the answer to this Metaculus numeric question.
## Question
How many barrels of oil will be in the US Strategic Petroleum Reserve at the end of the second week of August 2026?
## Description / Resolution Criteria
## Description
Wolf Street: [Government Uses Strategic Petroleum Reserve as Cudgel to Beat Down Oil-Price Mania: Worked for Second Time](https://wolfstreet.com/2026/06/15/government-uses-strategic-petroleum-reserve-as-cudgel-to-beat-down-oil-price-mania-worked-for-second-time/)
`{"format": "bot_tournament_question", "info": {"hash_id": "1b166a74bb44086e", "sheet_id": "68"}}`
## Resolution Criteria
This question resolves as the number, in thousands of barrels, of crude oil in the Strategic Petroleum Reserve at the end of Week 2 in August 2026, according to the EIA at its [Petroleum & Other Liquids](https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=WCSSTUS1&f=W) portal.
## Fine Print
No other resolution source will be used, and this question will resolve exactly as the number displayed by the resolution source.
## Range
The answer must be a number in [300000, 450000] (units: thousand barrels).
## Sub-question decomposition (planner)
- (w=0.40) Will the SPR crude oil inventory be higher (rising trend) at the start of August 2026 than it is at the most recent EIA reading? — The recent fill/draw trajectory is the strongest predictor of the August 2026 level; SPR changes are gradual and seriall
- (w=0.35) Will the government conduct a significant SPR release (drawdown) in mid-2026 to combat an oil-price spike, as referenced in the question's source article? — The description explicitly references using the SPR as a 'cudgel' to beat down oil prices a second time, implying releas
- (w=0.25) Will SPR refill purchases/deliveries continue adding inventory through summer 2026? — DOE has been gradually refilling the SPR; continued purchases push the level upward, partially offsetting releases.
## Synthesized evidence
1. [sq1 | fred_data | WEAK cred 20 | NEUTRAL | VERY_RECENT] FRED weekly SPR series was queried but no numerical values were returned in the research output.
2. [sq1 | code_execution | WEAK cred 20 | NEUTRAL | VERY_RECENT] A Monte Carlo extrapolation of the weekly SPR trend to August 2026 was set up but produced no reported output values.
3. [sq2 | claude_news | MODERATE cred 50 | NEUTRAL | RECENT] Source article (Wolf Street, June 2026) references government using SPR releases to combat oil-price spikes, described as having 'worked for a second time.'
4. [sq2 | claude_news | WEAK cred 20 | NEUTRAL | VERY_RECENT] No specific confirmed details on the size, timing, or duration of a mid-2026 SPR release were returned in the research.
5. [sq3 | claude_news | WEAK cred 20 | NEUTRAL | VERY_RECENT] No confirmed data returned on continuation or pace of SPR refill purchases/deliveries through summer 2026.
## Cross-Market Signals
### No signal found
Information gaps:
- Actual current SPR inventory level and weekly delta from EIA/FRED
- Confirmed size and timing of any mid-2026 SPR release
- Status and rate of SPR refill purchases in summer 2026
- Historical base rate for SPR weekly drawdown/refill magnitudes
Key uncertainties:
- Whether a mid-2026 oil-price spike triggers another release
- Net direction of inventory: refill vs. drawdown
- Magnitude of any policy-driven change by August 2026
- Reliability of the source article's 'second time' release claim
## Required pre-forecast walkthrough
Before giving percentiles, address these explicitly in your rationale:
(a) The time left until the question resolves.
(b) The outcome if NOTHING changes from today (the status quo value).
(c) The outcome if the CURRENT TREND continues.
(d) The expectations of experts / markets / base rates.
(e) A plausible scenario that produces a LOW outcome (near p10).
(f) A plausible scenario that produces a HIGH outcome (near p90).
## Calibration guidance
- **Be humble about tails.** Good forecasters set WIDE 90/10 intervals to account for unknown unknowns. Narrow tails get punished by the log score far more than slightly-biased medians.
- **Status quo anchoring.** The p50 should be close to the status quo value unless you have strong evidence of a trend.
- Don't pile mass at one value — if you're tempted, widen the spread by 20-50%.
- **Anchor on markets/experts.** If liquid market prices, analyst forecasts, or community percentiles appear in the evidence, center your distribution on them and widen — don't override a liquid market without specific evidence it lacks.
## Output
Return ONLY valid JSON, no markdown fences:
{
"rationale": "<address (a) through (f) above, then state your distribution — 6-10 sentences total>",
"p10": <number>,
"p25": <number>,
"p50": <number>,
"p75": <number>,
"p90": <number>
}
Percentiles MUST be in non-decreasing order (p10 <= p25 <= p50 <= p75 <= p90).
{
"forecast": {
"evidence_brief": "1. [sq1 | fred_data | WEAK cred 20 | NEUTRAL | VERY_RECENT] FRED weekly SPR series was queried but no numerical values were returned in the research output.\n2. [sq1 | code_execution | WEAK cred 20 | NEUTRAL | VERY_RECENT] A Monte Carlo extrapolation of the weekly SPR trend to August 2026 was set up but produced no reported output values.\n3. [sq2 | claude_news | MODERATE cred 50 | NEUTRAL | RECENT] Source article (Wolf Street, June 2026) references government using SPR releases to combat oil-price spikes, described as having \u0027worked for a second time.\u0027\n4. [sq2 | claude_news | WEAK cred 20 | NEUTRAL | VERY_RECENT] No specific confirmed details on the size, timing, or duration of a mid-2026 SPR release were returned in the research.\n5. [sq3 | claude_news | WEAK cred 20 | NEUTRAL | VERY_RECENT] No confirmed data returned on continuation or pace of SPR refill purchases/deliveries through summer 2026.\n\n## Cross-Market Signals\n\n### No signal found\n\nInformation gaps:\n - Actual current SPR inventory level and weekly delta from EIA/FRED\n - Confirmed size and timing of any mid-2026 SPR release\n - Status and rate of SPR refill purchases in summer 2026\n - Historical base rate for SPR weekly drawdown/refill magnitudes\n\nKey uncertainties:\n - Whether a mid-2026 oil-price spike triggers another release\n - Net direction of inventory: refill vs. drawdown\n - Magnitude of any policy-driven change by August 2026\n - Reliability of the source article\u0027s \u0027second time\u0027 release claim",
"forecast_prompt": "You are an elite superforecaster. Produce a probability distribution over the answer to this Metaculus numeric question.\n\n## Question\nHow many barrels of oil will be in the US Strategic Petroleum Reserve at the end of the second week of August 2026?\n\n## Description / Resolution Criteria\n## Description\nWolf Street: [Government Uses Strategic Petroleum Reserve as Cudgel to Beat Down Oil-Price Mania: Worked for Second Time](https://wolfstreet.com/2026/06/15/government-uses-strategic-petroleum-reserve-as-cudgel-to-beat-down-oil-price-mania-worked-for-second-time/)\n\n`{\"format\": \"bot_tournament_question\", \"info\": {\"hash_id\": \"1b166a74bb44086e\", \"sheet_id\": \"68\"}}`\n\n## Resolution Criteria\nThis question resolves as the number, in thousands of barrels, of crude oil in the Strategic Petroleum Reserve at the end of Week 2 in August 2026, according to the EIA at its [Petroleum \u0026 Other Liquids](https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET\u0026s=WCSSTUS1\u0026f=W) portal.\n\n## Fine Print\nNo other resolution source will be used, and this question will resolve exactly as the number displayed by the resolution source.\n\n## Range\nThe answer must be a number in [300000, 450000] (units: thousand barrels).\n\n## Sub-question decomposition (planner)\n- (w=0.40) Will the SPR crude oil inventory be higher (rising trend) at the start of August 2026 than it is at the most recent EIA reading? \u2014 The recent fill/draw trajectory is the strongest predictor of the August 2026 level; SPR changes are gradual and seriall\n- (w=0.35) Will the government conduct a significant SPR release (drawdown) in mid-2026 to combat an oil-price spike, as referenced in the question\u0027s source article? \u2014 The description explicitly references using the SPR as a \u0027cudgel\u0027 to beat down oil prices a second time, implying releas\n- (w=0.25) Will SPR refill purchases/deliveries continue adding inventory through summer 2026? \u2014 DOE has been gradually refilling the SPR; continued purchases push the level upward, partially offsetting releases.\n\n## Synthesized evidence\n1. [sq1 | fred_data | WEAK cred 20 | NEUTRAL | VERY_RECENT] FRED weekly SPR series was queried but no numerical values were returned in the research output.\n2. [sq1 | code_execution | WEAK cred 20 | NEUTRAL | VERY_RECENT] A Monte Carlo extrapolation of the weekly SPR trend to August 2026 was set up but produced no reported output values.\n3. [sq2 | claude_news | MODERATE cred 50 | NEUTRAL | RECENT] Source article (Wolf Street, June 2026) references government using SPR releases to combat oil-price spikes, described as having \u0027worked for a second time.\u0027\n4. [sq2 | claude_news | WEAK cred 20 | NEUTRAL | VERY_RECENT] No specific confirmed details on the size, timing, or duration of a mid-2026 SPR release were returned in the research.\n5. [sq3 | claude_news | WEAK cred 20 | NEUTRAL | VERY_RECENT] No confirmed data returned on continuation or pace of SPR refill purchases/deliveries through summer 2026.\n\n## Cross-Market Signals\n\n### No signal found\n\nInformation gaps:\n - Actual current SPR inventory level and weekly delta from EIA/FRED\n - Confirmed size and timing of any mid-2026 SPR release\n - Status and rate of SPR refill purchases in summer 2026\n - Historical base rate for SPR weekly drawdown/refill magnitudes\n\nKey uncertainties:\n - Whether a mid-2026 oil-price spike triggers another release\n - Net direction of inventory: refill vs. drawdown\n - Magnitude of any policy-driven change by August 2026\n - Reliability of the source article\u0027s \u0027second time\u0027 release claim\n\n## Required pre-forecast walkthrough\n\nBefore giving percentiles, address these explicitly in your rationale:\n (a) The time left until the question resolves.\n (b) The outcome if NOTHING changes from today (the status quo value).\n (c) The outcome if the CURRENT TREND continues.\n (d) The expectations of experts / markets / base rates.\n (e) A plausible scenario that produces a LOW outcome (near p10).\n (f) A plausible scenario that produces a HIGH outcome (near p90).\n\n## Calibration guidance\n\n- **Be humble about tails.** Good forecasters set WIDE 90/10 intervals to account for unknown unknowns. Narrow tails get punished by the log score far more than slightly-biased medians.\n- **Status quo anchoring.** The p50 should be close to the status quo value unless you have strong evidence of a trend.\n- Don\u0027t pile mass at one value \u2014 if you\u0027re tempted, widen the spread by 20-50%.\n- **Anchor on markets/experts.** If liquid market prices, analyst forecasts, or community percentiles appear in the evidence, center your distribution on them and widen \u2014 don\u0027t override a liquid market without specific evidence it lacks.\n\n## Output\n\nReturn ONLY valid JSON, no markdown fences:\n\n{\n \"rationale\": \"\u003caddress (a) through (f) above, then state your distribution \u2014 6-10 sentences total\u003e\",\n \"p10\": \u003cnumber\u003e,\n \"p25\": \u003cnumber\u003e,\n \"p50\": \u003cnumber\u003e,\n \"p75\": \u003cnumber\u003e,\n \"p90\": \u003cnumber\u003e\n}\n\nPercentiles MUST be in non-decreasing order (p10 \u003c= p25 \u003c= p50 \u003c= p75 \u003c= p90).\n",
"models": [
"opus"
],
"p50": 403000.0,
"percentiles": {
"0.1": 378000.0,
"0.25": 392000.0,
"0.5": 403000.0,
"0.75": 413000.0,
"0.9": 424000.0
},
"rationale": "(a) The question resolves mid-August 2026, roughly a year-plus from typical recent EIA readings, so substantial gradual change is possible. (b) Status quo: the SPR has been slowly refilling from its ~347M-barrel low (2023) and sits around 400-405M barrels (400,000-405,000 thousand) in recent readings; if nothing changes it drifts near 400-410M. (c) Current trend: continued slow refill at a few hundred thousand barrels per week would add roughly 10-20M over a year, pushing toward 410-420M. (d) Base rates: SPR moves are gradual and serially correlated; weekly changes are typically small (under ~1M barrels), making large swings rare absent deliberate policy action. (e) Low scenario: the article\u0027s referenced mid-2026 \u0027cudgel\u0027 release to fight an oil-price spike draws down 15-30M barrels, dropping the level toward 375-385M. (f) High scenario: aggressive refilling continues uninterrupted with no release, pushing toward 420-430M. Given the explicit reference to a release event but uncertainty about its size and offsetting refill, I center near the status quo with a slight upward refill bias and wide tails to account for policy-driven swings."
},
"plan": {
"combination_logic": "weighted_average",
"domain": "economics",
"n_sub_qs": 3,
"n_tools": 3,
"reasoning_approach": "Establish the current SPR level and weekly trend from FRED, extrapolate to August 2026, then adjust for the probability and magnitude of a mid-2026 release (sq2) versus continued refill (sq3), blending these correlated factors into a central level estimate with uncertainty.",
"sub_questions": [
{
"id": "sq1",
"question": "Will the SPR crude oil inventory be higher (rising trend) at the start of August 2026 than it is at the most recent EIA reading?",
"rationale": "The recent fill/draw trajectory is the strongest predictor of the August 2026 level; SPR changes are gradual and serially correlated.",
"weight": 0.4
},
{
"id": "sq2",
"question": "Will the government conduct a significant SPR release (drawdown) in mid-2026 to combat an oil-price spike, as referenced in the question\u0027s source article?",
"rationale": "The description explicitly references using the SPR as a \u0027cudgel\u0027 to beat down oil prices a second time, implying releases that would lower the level.",
"weight": 0.35
},
{
"id": "sq3",
"question": "Will SPR refill purchases/deliveries continue adding inventory through summer 2026?",
"rationale": "DOE has been gradually refilling the SPR; continued purchases push the level upward, partially offsetting releases.",
"weight": 0.25
}
],
"tool_requests": [
{
"parameters": {
"lookback_months": 36,
"search_text": "US Strategic Petroleum Reserve crude oil stocks weekly",
"series_ids": [
"WCSSTUS1",
"WCESTUS1"
]
},
"target_sub_questions": [
"sq1",
"sq3"
],
"tool_name": "fred_data"
},
{
"parameters": {
"code": "import numpy as np\n# Placeholder: project SPR level using recent weekly trend.\n# Recent SPR ~ 400,000+ thousand barrels, refill ~ +500-700 thousand bbl/week typical.\n# Will fit linear/AR trend once FRED data retrieved and simulate Aug 2026 level distribution.\nprint(\u0027Use FRED weekly SPR series to estimate weekly delta, then extrapolate to Week 2 of August 2026 with uncertainty bands.\u0027)",
"description": "Extrapolate weekly SPR trend to August 2026 with Monte Carlo uncertainty"
},
"target_sub_questions": [
"sq1",
"sq3"
],
"tool_name": "code_execution"
},
{
"parameters": {
"brief": "Find recent news on US Strategic Petroleum Reserve releases, refill plans, and any 2026 drawdown to combat oil price spikes. Quantify barrels released or purchased and current SPR level.",
"max_searches": 4,
"question_title": "How many barrels of oil will be in the US Strategic Petroleum Reserve at the end of the second week of August 2026?"
},
"target_sub_questions": [
"sq2",
"sq3"
],
"tool_name": "claude_news"
}
]
},
"question": {
"close_time": "2026-06-30T18:00:00Z",
"description": "## Description\nWolf Street: [Government Uses Strategic Petroleum Reserve as Cudgel to Beat Down Oil-Price Mania: Worked for Second Time](https://wolfstreet.com/2026/06/15/government-uses-strategic-petroleum-reserve-as-cudgel-to-beat-down-oil-price-mania-worked-for-second-time/)\n\n`{\"format\": \"bot_tournament_question\", \"info\": {\"hash_id\": \"1b166a74bb44086e\", \"sheet_id\": \"68\"}}`\n\n## Resolution Criteria\nThis question resolves as the number, in thousands of barrels, of crude oil in the Strategic Petroleum Reserve at the end of Week 2 in August 2026, according to the EIA at its [Petroleum \u0026 Other Liquids](https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET\u0026s=WCSSTUS1\u0026f=W) portal.\n\n## Fine Print\nNo other resolution source will be used, and this question will resolve exactly as the number displayed by the resolution source.",
"open_lower": true,
"open_upper": true,
"q_max": 450000,
"q_min": 300000,
"question_type": "numeric",
"title": "How many barrels of oil will be in the US Strategic Petroleum Reserve at the end of the second week of August 2026?",
"units": "thousand barrels"
},
"research": {
"cross_market_brief": "## Cross-Market Signals\n\n### No signal found",
"errors": [],
"has_cross_market": true,
"n_errors": 0,
"n_tools": 3,
"tools": [
{
"elapsed_s": 1.72,
"error": null,
"success": true,
"summary": "2 series",
"tool_name": "fred_data"
},
{
"elapsed_s": 0.15,
"error": null,
"success": true,
"summary": "Extrapolate weekly SPR trend to August 2026 with Monte Carlo",
"tool_name": "code_execution"
},
{
"elapsed_s": 45.81,
"error": null,
"success": true,
"summary": "15 citations",
"tool_name": "claude_news"
}
]
},
"synthesis": {
"evidence": [
{
"claim": "FRED weekly SPR series was queried but no numerical values were returned in the research output.",
"credibility": 20,
"direction": "NEUTRAL",
"priced_in": true,
"recency": "VERY_RECENT",
"source": "fred_data",
"strength": "WEAK",
"sub_question_id": "sq1"
},
{
"claim": "A Monte Carlo extrapolation of the weekly SPR trend to August 2026 was set up but produced no reported output values.",
"credibility": 20,
"direction": "NEUTRAL",
"priced_in": false,
"recency": "VERY_RECENT",
"source": "code_execution",
"strength": "WEAK",
"sub_question_id": "sq1"
},
{
"claim": "Source article (Wolf Street, June 2026) references government using SPR releases to combat oil-price spikes, described as having \u0027worked for a second time.\u0027",
"credibility": 50,
"direction": "NEUTRAL",
"priced_in": true,
"recency": "RECENT",
"source": "claude_news",
"strength": "MODERATE",
"sub_question_id": "sq2"
},
{
"claim": "No specific confirmed details on the size, timing, or duration of a mid-2026 SPR release were returned in the research.",
"credibility": 20,
"direction": "NEUTRAL",
"priced_in": false,
"recency": "VERY_RECENT",
"source": "claude_news",
"strength": "WEAK",
"sub_question_id": "sq2"
},
{
"claim": "No confirmed data returned on continuation or pace of SPR refill purchases/deliveries through summer 2026.",
"credibility": 20,
"direction": "NEUTRAL",
"priced_in": false,
"recency": "VERY_RECENT",
"source": "claude_news",
"strength": "WEAK",
"sub_question_id": "sq3"
}
],
"information_gaps": [
"Actual current SPR inventory level and weekly delta from EIA/FRED",
"Confirmed size and timing of any mid-2026 SPR release",
"Status and rate of SPR refill purchases in summer 2026",
"Historical base rate for SPR weekly drawdown/refill magnitudes"
],
"key_uncertainties": [
"Whether a mid-2026 oil-price spike triggers another release",
"Net direction of inventory: refill vs. drawdown",
"Magnitude of any policy-driven change by August 2026",
"Reliability of the source article\u0027s \u0027second time\u0027 release claim"
],
"n_evidence": 5
},
"timings": {
"forecast": 23.29,
"plan": 22.12,
"research": 45.86,
"synthesis": 11.33
}
}