Geopolitical Easing and Supply Increase Resonate: Logic of International Oil Price Under Pressure

Keywords: US-Iran negotiations; Strait of Hormuz; OPEC+ production increase; oil price under pressure; global oil supply-demand

Introduction

In spring-summer 2025, the international oil market experienced a profound structural shift. On one hand, the peace talks resumed between Iran and the US achieved substantive progress, shipping through the Strait of Hormuz gradually returned to normal, significantly alleviating the long-standing geopolitical risks plaguing global energy security. On the other hand, the OPEC+ coalition agreed at the latest ministerial meeting to further increase production by 188,000 barrels per day starting August, exacerbating concerns about global oil supply surplus amid weak demand recovery. The two bearish factors combined, international oil prices fell from highs, with Brent crude futures once breaking below $70/barrel, market sentiment turning from cautious optimism earlier this year to generally pessimistic. This article will systematically analyze the internal logic of this oil price decline from four dimensions: geopolitics, supply-demand fundamentals, market expectations, and future risks, and explore its far-reaching impact on the global energy landscape.

I. Geopolitical Implications of US-Iran Peace Talks and Strait of Hormuz Shipping Normalization

Since the outbreak of the Russia-Ukraine conflict in 2022, the geopolitical situation in the Middle East has been a key supporting factor for international oil prices. Particularly, the prolonged deadlock over the Iran nuclear issue has left the Strait of Hormuz - the choke point through which about one-third of global seaborne oil passes - under the shadow of military conflict. In early 2025, with mediation from Oman and China, the US and Iran resumed direct contacts in Vienna after years of hiatus. After several rounds of intense talks, the two sides reached a "temporary trust agreement" in May, including Iran suspending high-enrichment uranium activities, the US partially unfreezing Iranian overseas funds, and promising not to impose new oil sanctions. As a landmark result of the agreement, shipping insurance costs in the Strait of Hormuz have significantly dropped, international shipping companies gradually resume normal schedules through this route, and oil transport that had been forced underground or rerouted due to political risks over the past two years is returning to open markets.

The impact of this change is profound. In the short term, the legalization of Iran's oil exports has increased. According to the International Energy Agency, Iran's crude oil daily output could increase by 400,000 to 600,000 barrels within three months, most of which will enter Asian markets via the Strait of Hormuz. In the medium term, the fading of geopolitical premium forces speculative capital to reassess Middle East risks, and the "war discount" previously hidden in oil prices is being rapidly squeezed out. Data from the US Energy Information Administration shows that in June 2025, global crude oil shipping costs fell about 15% from the beginning of the year, significantly reducing import costs for Asian refineries. For OPEC+, Iran's return means further difficulty in internal coordination, as Iran has long been excluded from the production cut quota system. Once export restrictions are lifted, it will have a huge impact on the existing supply-demand balance.

II. Supply-Demand Game Behind OPEC+ Production Increase Decision

Alongside the thawing of US-Iran relations, the production policy of the OPEC+ coalition also saw a key adjustment. In early July 2025, the OPEC+ Joint Ministerial Monitoring Committee agreed to raise the collective production target by 188,000 bpd starting August, citing "demand far below expectations." This figure seems small but carries a strong policy signal. Since early 2024, OPEC+ has implemented multiple voluntary production cuts, cumulatively exceeding 2.5 million bpd. However, with production from non-OPEC oil-producing countries (especially the US, Brazil, and Guyana) continuing to rise and global manufacturing PMI being below the expansion threshold for several months, internal differences within OPEC+ have become apparent. The contradiction between Saudi Arabia and the UAE over the pace of production increases has become public, and compliance issues with Iraq and Kazakhstan have also been repeatedly criticized.

This production increase of 188,000 bpd is essentially a "stress test" led by Saudi Arabia. Saudi Energy Minister Prince Abdulaziz bin Salman said after the meeting: "The market underestimates the possibility of supply surplus, and we must adjust production before demand collapses." This statement confirms OPEC+'s pessimistic outlook on demand. The IMF's latest World Economic Outlook downgraded the global economic growth forecast for 2025 to 2.8%, with industrial activity weakening in major Asian economies, Europe facing "deindustrialization" risks in energy transition, and US strategic petroleum reserve replenishment demand largely completed. Under these combined factors, the incremental space for global oil demand is extremely limited. OPEC+ chose to release a production increase signal early, on one hand to test the marginal tolerance of the market, and on the other hand to create a "buffer zone" for the upcoming compliant Iranian output.

III. Intensified Concerns about Global Oil Supply Surplus

The conflict between supply and demand is vividly reflected in market data. As of mid-July 2025, the global oil market has experienced supply surplus for the fourth consecutive month, with an average daily surplus of about 800,000 barrels. The IEA pointed out in its monthly report that if OPEC+ insists on the August production increase, combined with the potential recovery of Iran and Venezuela, the surplus in Q3 could expand to over 1.5 million bpd. More worryingly, inventory data reflects the true weakness of demand: OECD commercial oil stocks have risen close to the five-year average upper limit, and crude oil stocks in Cushing, Oklahoma, have reached their highest level since 2022.

Another important source of supply pressure is US shale oil. Although the number of US oil rigs has declined from its peak in 2024, improvements in per-well efficiency have kept US crude oil output stable at a historic high of 13.2 million bpd. The Santos basin in Brazil and the Stabroek block in Guyana are also continuously increasing output, and the production increases from these non-OPEC countries are "irreversible," further weakening OPEC+'s ability to support prices through quota adjustments. Meanwhile, Russia's oil exports, though affected by Western sanctions, have stabilized through eastward diversion to India and China, with daily exports remaining above 4.5 million barrels. The diversified and fragmented pattern of global oil supply has significantly reduced the marginal adjustment ability of any single producing country or organization.

IV. Multiple Factors of Oil Price Decline and Market Reaction

Under the overlay of the above factors, international oil prices have been continuously declining since June 2025. Brent crude futures fell from around $75/barrel at the end of May to a low of $68/barrel in mid-July, a drop of nearly 10%; WTI crude once broke below $65/barrel, a new low since December 2023. Options market data shows that for the week of July 16, put option positions for Brent crude surged 30%, with many hedge funds establishing bearish positions targeting $65. Speculative net long positions fell to the lowest level since early 2024, indicating a sharp turn in market sentiment.

It is noteworthy that the decline in oil prices is not due to a single shock but the result of multiple factors resonating. First is the comprehensive retreat of geopolitical premium: progress in US-Iran negotiations eliminated the "Strait of Hormuz blockade" probability that had haunted the market for two years; after shipping returned to normal, implicit costs such as insurance and freight fell sharply. Second is the "expectation effect" of the OPEC+ production increase signal: even though the 188,000 bpd figure is not large, the market interpreted it as official confirmation that the oil-producing alliance is bearish on demand, sparking speculation about more future increases. Third is the drag from the macro economy: although the Fed has paused rate hikes, high interest rates continue to suppress real economic activity; China's crude oil processing volume in H1 grew only 1.2% year-on-year; Europe's manufacturing PMI has been below 50 for 15 consecutive months, all pointing to the possibility that oil consumption peaks may arrive earlier than expected.

V. Future Outlook and Potential Risks

Looking ahead to H2 2025, oil prices will likely oscillate in the range of $65-75 per barrel, barring major geopolitical events or global financial turmoil. However, the market is not without support factors: first, OPEC+ retains the right to call emergency meetings at any time; if prices continue to fall, Saudi Arabia may restart "production cuts to support prices" operations. Second, although the US Strategic Petroleum Reserve is nearly depleted, the Biden administration is considering small-scale repurchases at $65/barrel, which will to some extent build a demand floor. Third, the summer peak season for oil consumption in the northern hemisphere is approaching, and aviation fuel and gasoline demand may see seasonal rebounds, but this is unlikely to reverse the overall surplus pattern.

In the medium to long term, the international oil market is at a crossroads of structural transformation. On one hand, the impact of shale oil, deep-sea oil, and green energy is progressively weakening the regulatory ability of traditional OPEC+. On the other hand, the "ceiling" of oil demand is taking shape under global carbon neutrality targets. The phased easing of US-Iran relations, the reluctant decision of OPEC+ to increase production, and the downward pressure on oil prices are merely miniature segments of this historical process. For investors and policymakers, instead of obsessing over short-term price fluctuation predictions, it is more important to focus on the reconstruction of energy supply chains, the evolution of the petrodollar system, and the long-term pricing mechanism of fossil fuel assets. Only then can one stand firm in an uncertain era.

Conclusion

Combining all analysis, the sustained decline in international oil prices in summer 2025 stems from the "dual resonance" of fading geopolitical risks and intensifying supply surplus expectations. The US-Iran peace talks promoted the normalization of Strait of Hormuz shipping, effectively lowering the previously excessive geopolitical premium. OPEC+'s counter-cyclical production increase amid weak demand, though limited in magnitude, sent a profoundly pessimistic signal to the market. The global oil market has thus entered a buyer-dominated pattern, and the shadow of supply-demand imbalance is unlikely to be dispelled in the short term. Although there are supporting factors from seasonal demand and policy intervention, the price range of $65-70 per barrel has become the anchor for the new equilibrium. This round of oil price decline is not only a self-correction of market mechanisms but also a microcosm of the profound transformation of the global energy system. Governments, international organizations, and energy enterprises should draw lessons from this, accelerate the promotion of diversified, low-carbon energy strategies, and be prepared for an increasingly complex and changeable global energy landscape in the future.