The Trump administration is currently asserting that its blockade of the Strait of Hormuz is achieving its objectives, citing nine ships that have complied with orders to reverse course. Among these was the Rich Starry, a Chinese-owned tanker that turned back in the Gulf of Oman on Wednesday after attempting to exit the waterway.
However, the tactical success of a blockade may be secondary to a deeper strategic shift. While the U.S. And Israel sought to degrade Iran’s nuclear and missile capabilities during the current conflict, Tehran has emerged with a powerful new tool in the Strait of Hormuz that it can leverage long after the war. By transforming a long-standing threat into an operational reality, Iran is attempting to redefine the security architecture of the Persian Gulf.
Tehran has maintained that it retains control over the strait and will dictate which vessels are permitted to transit. This resolve is backed by a stark warning: if Iranian ports are threatened, the regime stated that “no port in the Persian Gulf and the Sea of Oman will remain safe.”
This shift represents a transition from sporadic disruption to a systematic attempt at sovereignty. During recent peace negotiations with the United States, Iranian officials reportedly added sovereignty over the strait to their formal list of demands, signaling that control of this chokepoint is now a core pillar of their long-term strategic thinking.
The Economics of a ‘Tollbooth’ Strategy
The most immediate application of this leverage is financial. Iran has begun implementing a “tollbooth” system, charging transit fees for ships passing through the waterway. By imposing minimal costs—estimated at approximately US$1 per barrel or up to US$2 million per tanker—Tehran is creating a significant new revenue stream.
The projected financial impact is substantial. Reports suggest Iran could generate roughly US$600 million per month from oil shipments and an additional US$800 million per month from gas shipments. Since the vast majority of the region’s energy exports must pass through the strait, economists estimate that at least 80% of these tolls would be paid by Persian Gulf states, potentially costing them as much as US$14 billion a year on oil alone.
Beyond revenue, this control serves as a security guarantee. By proving it can disrupt the world’s most critical energy artery, Iran has shifted its deterrence strategy from purely military threats to economic risk. This creates a powerful incentive for adversaries to avoid direct military action, as any escalation could trigger a global energy crisis.
the strait provides geopolitical leverage with the Global South. Energy-dependent states may be more inclined to circumvent U.S. Sanctions or deepen economic ties with Tehran in exchange for guaranteed, unhindered access to the waterway.
The Structural Limits of U.S. Power
The U.S. Effort to neutralize this leverage—essentially a “siege of a siege”—faces significant structural hurdles. While the U.S. Navy can project power in international waters, maintaining a permanent, restrictive blockade of the strait is a vastly different challenge than Iran maintaining control from its own coastline.
An extended U.S. Blockade would be prohibitively expensive for the American military and would likely cause severe volatility in global markets. For many analysts, the situation risks becoming a “Suez moment” for the United States—a strategic chokepoint that highlights the limits of American reach rather than its dominance.
| Feature | Iranian Control | U.S. Blockade |
|---|---|---|
| Logistical Base | Direct coastal access | International waters/Carrier groups |
| Economic Impact | Revenue via tolls | High operational cost |
| Sustainability | High (geographically fixed) | Low (requires constant deployment) |
| Primary Goal | Sovereignty & Revenue | Containment & Pressure |
China’s Calculated Neutrality
Beijing finds itself in a complex position. China imports more than 80% of Iran’s oil, and approximately 40% of its total oil imports transit through the strait. While one Chinese tanker was forced to turn around by the U.S. Blockade, others have successfully transited by utilizing Iran’s new toll system.
China’s Foreign Ministry spokesperson, Guo Jiakun, described the U.S. Blockade as “dangerous and irresponsible.” This suggests a willingness to abide by Iran’s rules to ensure the flow of energy. Beijing has mitigated its risk by diversifying oil imports and maintaining petroleum reserves believed to be sufficient for up to seven months of replacement.
However, China’s long-term support for a toll system remains unclear. While Beijing has remained largely silent on the fees, it continues to call for a return to “normal passage” through the strait, indicating a preference for stability over Iranian sovereignty.
A Shift Toward a Regional Security Framework
The ongoing conflict is accelerating a political pivot in the Gulf. Several Gulf states are beginning to realize that alignment with the U.S. And partnerships with Israel do not guarantee absolute security. This is evidenced by the recent visit of the crown prince of Abu Dhabi to Beijing.
Economic ties are already shifting; total trade between Gulf states and China reached approximately US$257 billion in 2024, surpassing the region’s combined trade with major Western economies. China has too increased its diplomatic footprint, having mediated the 2023 Saudi-Iran normalization deal and played an indirect role in recent talks in Pakistan to end the war.
Looking ahead, Iran may use its control of the strait to push for a new, regionally based security framework. In such a scenario, China could act as a guarantor or facilitator, marking a fundamental departure from the era when the United States served as the primary security provider in the Persian Gulf.
The next critical checkpoint will be the outcome of the ongoing diplomatic efforts to finalize a peace agreement between the U.S. And Iran, specifically whether Tehran’s demands for sovereignty over the strait are conceded or rejected.
We invite readers to share their perspectives on the shifting security dynamics of the Persian Gulf in the comments below.
