Congress Advances Russia-Iran Sanctions to Squeeze Putin's Oil Revenue

The United States Congress moved closer to enacting a sweeping sanctions package targeting Russia’s and Iran’s oil revenues on August 10, after the Senate approved the legislation by an 86-11 margin — a lopsided bipartisan vote that signals rare consensus on confronting both adversaries simultaneously.

The House of Representatives advanced the bill just days after that Senate vote, according to OilPrice, opening what the outlet described as “the next phase” in Washington’s effort to restrict energy revenues flowing to Moscow and Tehran.

What the Bill Targets

The legislation is designed to constrict Russia’s oil export revenues — a primary source of Kremlin funding for its ongoing war in Ukraine — while simultaneously tightening pressure on Iran’s energy sector. Packaging the two countries together reflects a congressional assessment that their economic and strategic interests are increasingly intertwined.

Russia has leaned on oil exports to sustain military operations since its full-scale invasion of Ukraine in February 2022. Earlier Western price caps and sanctions rounds reduced but did not eliminate that revenue stream, and Congress has been pressing for stricter enforcement. Iran, meanwhile, has faced mounting pressure over its nuclear program and its financial support for proxy forces across the Middle East. The Iran component of the package comes as the U.S.-Iran confrontation stretches into its sixth month.

Markets Are Already Moving

Oil markets have not waited for the bill to become law. Wall Street futures were muted Monday as the ongoing U.S.-Iran impasse pushed crude prices higher, according to Reuters. Brent crude has already climbed toward $90 per barrel as peace negotiations between Washington and Tehran have stalled — a dynamic covered in our earlier report on deal-compensation talks.

Sanctions that further restrict either country’s oil exports could tighten global supply and sustain upward pressure on crude prices — a trade-off Congress appears willing to accept given the strategic stakes involved.

Iran Strategy Under Scrutiny

The sanctions push comes as the Trump administration faces pointed questions about its Iran posture. Former Defense Secretary Mark Esper said Monday that the administration appears to be on its “back foot” strategically in the nearly six-month conflict with Iran, despite significant damage inflicted on Iranian military and nuclear facilities.

Esper’s assessment captures the central tension: military operations have degraded Iranian capabilities, but Tehran has not changed course, and Iranian-backed forces continue to operate across the region. Houthi rebels renewed attacks on a key Red Sea port city this week, according to AP News, illustrating that proxy networks remain active even as direct pressure on Iran has intensified.

Sanctions offer a complementary track — a non-kinetic instrument to continue degrading Iran’s financial position while diplomatic options remain unresolved.

The Russia-Iran Linkage

The decision to target both countries in a single bill reflects an evolving congressional view that Russia and Iran are providing each other meaningful strategic cover. Ukraine’s President Zelenskyy has repeatedly warned that Russia is deepening its military reliance on North Korean weapons and ballistic missiles, as detailed in earlier reporting. Russian forces have used those assets in strikes that killed nine civilians in Ukraine, according to Ukrainian officials.

The Iran-Russia pairing in this legislation treats the two countries not as isolated problems but as mutually reinforcing threats — a framing that has gained currency among senators on both sides of the aisle.

The 86-11 Senate margin is the clearest evidence of that consensus. A 17-to-1 ratio goes well beyond the hawkish caucus, incorporating members from both parties who view the Russia-Iran relationship as a primary threat to U.S. interests and global stability.

What Happens Next

With the House advancing the bill on August 10, the legislation is on a path toward a full floor vote or conference process. If enacted, it would head to President Trump for signature. The administration has not publicly stated its position on the bill, but a veto would be politically difficult given the Senate margin.

Enforcement would fall to the Treasury Department’s Office of Foreign Assets Control, which would identify specific entities, vessels, and financial networks subject to restriction — a process that typically takes months to operationalize fully.

For energy markets, the question is not just whether the bill passes but how rigorously it is enforced. Stringent implementation could remove meaningful volumes of Russian and Iranian crude from global supply, sustaining the elevated oil prices that have already pushed Brent toward $90 and complicating an economic picture that equity markets are watching with caution.