Key Takeaways
- US Crude Oil futures settled at $79.34/bbl, advancing 1.54% as military tensions in the Middle East reached a boiling point and a new US naval blockade on Iran took effect.
- US Senators released a revised Russia sanctions bill that reduces proposed blanket tariffs on major oil buyers from 500% to 100%, providing a "bone-crushing" but more flexible framework.
- The US military conducted additional airstrikes in Iran on Tuesday to eliminate "emerging threats," while the IRGC warned that regional oil exports will be halted as long as US forces remain.
- Iran’s Deputy Foreign Minister declared the Islamabad MOU "dead," stating Tehran currently has no commitments under the peace framework following repeated US strikes.
- Fitch Ratings affirmed Canada’s AA+ rating with a stable outlook, though it warned that ongoing trade uncertainty and structural challenges continue to plague the economy.
Middle East Conflict Escalates as Naval Blockade Resumes
The US military carried out a third consecutive night of targeted strikes against Iranian military installations on Tuesday. A US official confirmed the operations were intended to eliminate "emerging threats" to commercial shipping and US personnel. These strikes follow a large-scale wave of attacks on Monday that targeted coastal defense systems, drone sites, and maritime capabilities in cities including Bandar Abbas and Bushehr.
In response, the Islamic Revolutionary Guard Corps (IRGC) claimed responsibility for strikes against "enemy weapons and parts storages" in Bahrain and Kuwait. The IRGC issued a stark ultimatum, vowing that "not a drop of oil or gas" will be exported from the region as long as the "evil" US presence persists. US Central Command (CENTCOM) officially reinstated a full naval blockade on all maritime traffic entering and exiting Iranian ports as of 4:00 p.m. ET on Tuesday.
Bipartisan Russia Sanctions Bill Eased to Secure Passage
US Senators have unveiled the text of an updated Russia sanctions bill, a legacy project of the late Senator Lindsey Graham. The revised legislation significantly softens previous proposals to make the bill more palatable for global energy markets. Specifically, it reduces the maximum tariff on the top five buyers of Russian oil and gas to 100%, down from a previously proposed 500% blanket tariff.
The bill includes critical exemptions for countries importing less than 15% of Russia’s natural gas exports, provided they demonstrate "significant efforts" to reduce those imports. Crucially, the legislation grants President Trump the authority to waive these sanctions if he determines it is in the US national interest. This flexibility is seen as a move to maintain executive leverage while still applying substantial economic pressure on Moscow.
Diplomatic Collapse: The Islamabad MOU Fails
The Islamabad Memorandum of Understanding (MOU), which briefly established a ceasefire in June, has effectively collapsed. Iran’s Deputy Foreign Minister stated on Tuesday that Tehran no longer considers itself bound by the agreement, citing "repeated US violations" and the resumption of hostilities. Iranian lawmakers have also formally declared the MOU "dead," pledging to seek retribution for the assassination of the late Supreme Leader.
The collapse of the diplomatic track has sent shockwaves through energy markets. US Crude Oil (WTI) futures rose $1.20 to settle at $79.34/bbl, as traders priced in the risk of a total shutdown of the Strait of Hormuz. Analysts warn that the transition from a "negotiated peace" back to active warfare could lead to sustained volatility in global energy supplies and heightened inflationary pressures.
Fitch Affirms Canada Amid Global Uncertainty
Against the backdrop of geopolitical turmoil, Fitch Ratings affirmed Canada’s Long-Term Issuer Default Rating at 'AA+' with a stable outlook. The agency noted that while the Canadian economy remains resilient, it is currently "plagued by ongoing trade uncertainty" and longstanding structural challenges. Fitch highlighted that the global sovereign sector outlook for 2026 has shifted toward "deteriorating" due to the broader economic impact of the US-Iran war.
Ed Liston is a senior contributing editor at TheStockMarketWatch.com. An active market watcher and investor, Ed guides an independent team of experienced analysts and writes for multiple stock trader publications.