So what’s behind the jump in prices? Market outcomes, like success, can claim a thousand fathers, but here’s a potential rogue’s gallery for Trump following Brent crude’s move to almost $75 a barrel on Thursday, its highest level in more than three years:

The Saudis - Trump’s right on this one. The world’s biggest oil exporter has signaled it wants to push prices even higher, to around $80 a barrel, as it seeks to fund the expansive (and expensive) economic agenda of Crown Prince Mohammed Bin Salman and support the valuation of state energy giant Aramco before an initial public offering. The kingdom spearheaded the successful effort by OPEC, Russia and other major producers to curtail global supply and boost prices. In a meeting this week, oil ministers signaled a willingness to see prices rise further.

Russia - Saudi Arabia’s most important ally in cutting output has backed extending the effort through the end of this year. Meanwhile, tensions are rising between the West and the world’s largest crude producer. The U.S. and Europe announced tough sanctions on Russia in recent weeks, including limits hitting oligarchs in the energy sector, although Trump did reverse a plan earlier this week to impose more restrictions.

The Iran Deal - Fears that Trump will reimpose sanctions on Iran when the nuclear deal is reviewed, largely arising from the president’s public comments, are adding to uncertainty in the market. The Obama administration’s agreement with Iran has boosted production from the nation by more than 1 million barrels a day.