Dollar in the Spotlight

U.S. Inflation, Crude Oil Inventories, and OPEC: how the August 12, 2025 data and OPEC could influence the dollar’s purchasing power and the price of oil

Forex 12/08/2025 4FT News
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Dollar in the Spotlight: U.S. Inflation, Crude Oil Inventories, and OPEC in an (Almost) One-Day Show
How the August 12, 2025 data and OPEC moves could influence the dollar’s purchasing power and the price of oil

Note on the dates. U.S. inflation (CPI) is scheduled for Tuesday, August 12, 2025, at 8:30 a.m. ET. The EIA’s weekly crude oil inventories are normally released on Wednesdays at 10:30 a.m. ET; for that week, the EIA page indicates August 13, 2025 as the next release. OPEC does not list a “monthly” meeting on August 12: the latest official announcement was on August 3, 2025 (virtual meeting of the OPEC+ “core eight” group), and the JMMC met on July 28, 2025.

Why these three events matter

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1) U.S. Inflation (CPI)
The CPI measures changes in consumer prices and directly influences expectations for Federal Reserve interest rates. The BLS confirms the release of the July CPI on August 12, 2025; it also noted a methodological update (mobile phone services) in effect with the July release, which could slightly affect the “core” component.

2) U.S. Crude Oil Inventories (EIA – WPSR)
The Weekly Petroleum Status Report provides a snapshot of the U.S. oil market supply-demand balance (production, imports, refinery runs, inventories). It is generally released on Wednesdays at 10:30 a.m. ET. The EIA maintains a page with the calendar/exceptions and a “Next Release Date” note. Inventories act as a market tension gauge: large stock draws often support oil prices.

3) OPEC / OPEC+
On the global supply front, OPEC+ announced on August 3, 2025 an additional production increase of 547,000 barrels/day in September, continuing the gradual adjustments begun in the spring. The JMMC reviewed the situation on July 28, 2025. These official statements frame expectations ahead of the U.S. data.

Geopolitical and economic framework: the threads linking inflation, the dollar, and oil

  • Inflation & Fed → Dollar. A hotter CPI increases the likelihood of less accommodative policy or a slower rate-cut path: the typical result is a stronger dollar in major trade-weighted indices (Federal Reserve Broad Dollar Index). Conversely, a cooler CPI weakens the greenback.
  • Inventories & OPEC → Oil. Falling EIA inventories and OPEC+ signals of more “disciplined” or moderated supply support oil prices; rising inventories and more generous OPEC+ supply weigh on them.
  • Global cycle. Rising oil prices tend to harden headline inflation (energy), feeding back into interest rate expectations and thus the dollar; the mechanism is circular.

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How to read the “USDOLLAR” index

To measure dollar strength from official data, use the Federal Reserve’s (H.10) indices, particularly the Nominal Broad Dollar Index, a trade-weighted average across a wide basket of partners (available in nominal and real versions). These metrics are maintained by the Federal Reserve Board and are also available via the FRED database.

Cross-scenarios for August 12–13

Scenario A: CPI above expectations + EIA inventories down + OPEC+ sticks to announced increases

  • Dollar: tends to strengthen on the Broad Dollar Index thanks to more “hawkish” Fed expectations.
  • Oil: price support (resilient demand + falling stocks), with risk of renewed pressure on headline inflation in upcoming reports.

Scenario B: CPI in line/soft + inventories rising

  • Dollar: weakens/moderates; market prices in more room for future cuts.
  • Oil: softer prices due to temporary surplus; easing of energy-driven inflation pressure.

Scenario C: Mixed CPI (soft core, high headline from energy) + flat inventories

  • Dollar: volatile with less directional conviction; focus on the most sensitive BLS basket components (shelter, services, energy).
  • Oil: sideways, awaiting the next OPEC+ move and upcoming EIA data.

Tactical implications: dollar vs. oil (and vice versa)

  • Energy inflation shock: if oil rises (falling inventories + geopolitical uncertainty), headline inflation could re-accelerate, strengthening the dollar via Fed expectations → strong dollar & high oil possible in the short term.
  • Global demand slowdown: if real activity/manufacturing and U.S. consumption slow, inventories rise, and OPEC+ keeps its output hike path → weaker dollar & softer oil.

What to watch live on August 12–13

  1. BLS CPI release (Aug 12, 8:30 a.m. ET) – focus on:
    • Core services (shelter, healthcare, insurance) and the methodological note on mobile phone services introduced in July.
  2. EIA WPSR (Aug 13, 10:30 a.m. ET) – check:
    • Total/commercial crude stocks, refinery utilization, product stocks (gasoline/distillates). Also review the summary table and weekly overview.
  3. OPEC/OPEC+ updates:
    • Last press release of Aug 3, 2025, and any subsequent minutes/statements (if published).

In summary

  • August 12: CPI can recalibrate rate expectations and, in turn, the Fed’s dollar index.
  • August 13: the EIA’s WPSR updates the supply/demand picture; combined with the latest OPEC+ announcement, it sets the tone for crude oil prices.
  • Key link: inflation ↔ rates ↔ dollar ↔ oil. A “hot” CPI and falling inventories support both the dollar and crude; a “cool” CPI and rising inventories favor a cooling of both dollar and oil.