In a seemingly contradictory wartime move, the administration is allowing countries like Iran and Russia to sell their oil. The primary goal is to manage the massive political and economic problem of spiking gas prices, even if it means temporarily empowering an enemy.

Donald Trump's plea for Ukraine to stop hitting Russian diesel infrastructure, while seemingly pro-Russia, is a starkly practical take on global economics. He understands that a global diesel shortage causes widespread inflation and hardship that ultimately weakens international support and affects everyone, making it a counterproductive long-term strategy.

Russia has dramatically shifted its oil trade away from the U.S. dollar, with only 5% of exports now settled in USD, down from 55% in 2022. While this circumvents direct financial sanctions, Russia remains vulnerable as key logistics like freight and insurance are still dollar-linked, increasing costs and complexity.

Indian refiners are likely to reduce direct purchases from sanctioned Russian entities like Rosneft. This is driven less by the sanctions themselves and more by the desire to protect their reputation and maintain access to the global financial system. The precedent set with Iran, where official imports dropped to zero, suggests a similar pattern.

A potential US diesel export ban has a cynical, second-order strategic purpose. By cutting off supply to Europe, the US could inflict enough economic pain to force its allies to pressure Ukraine into a settlement with Russia, achieving US policy goals through indirect economic coercion.

The primary impact of U.S. sanctions on Russian oil is not a reduction in supply but a compression of profit margins. Russia is forced to offer deeper discounts, estimated at $3-$5 per barrel below pre-sanction levels, to compensate buyers for increased logistical and financial risks, ensuring export flows remain stable.

Despite his stated goal of lowering oil prices, President Trump's aggressive sanctions on Venezuela, Iran, and Russia have removed significant supply from the market. This creates logistical bottlenecks and "oil on water" buildups, effectively tightening the market and keeping prices higher than they would be otherwise.

A potential 90-day US diesel export ban is not just a flawed economic policy but a strategic weapon. It could create global shortages, enabling the administration to selectively grant exemptions to allies who "kiss the ring," thereby enforcing loyalty and consolidating its geopolitical influence.

The risk from a potential US diesel export ban extends beyond countries directly importing from the US. It would disrupt the entire global product market, creating price pressures for any emerging market nation reliant on refined product imports, regardless of their primary supplier.