Mexico's Finance Ministry (Secretaría de Hacienda y Crédito Público, SHCP) reactivated the fiscal stimulus on Premium gasoline for the week of July 18-24, 2026, after seven consecutive weeks without support. The decision responds to a surge in international oil prices driven by the escalating conflict between the United States and Iran and mounting tensions in the Strait of Hormuz.
The variable stimulus on the Special Tax on Production and Services (IEPS) is Mexico's weekly mechanism for absorbing external oil shocks without resorting to permanent, generalized subsidies. Every Friday, the SHCP publishes stimulus percentages for the following week in the Official Gazette (Diario Oficial de la Federación), based on the trajectory of international crude and gasoline prices. The immediate trigger was the resumption of hostilities between the United States and Iran in the Middle East, which pushed Brent crude to $88.10 per barrel and WTI to $82.49 per barrel at the close of Friday, July 17, according to El Economista. Mexico's export oil blend reached $77.67 per barrel, an increase of nearly 20 percent relative to pre-conflict levels.
For the week of July 18-24, the Premium stimulus was set at 8.23 percent, equivalent to 0.4655 pesos per liter, leaving consumers with an IEPS quota of 5.1924 pesos. Magna gasoline received a stimulus of 22.20 percent, or 1.4877 pesos per liter, up from 15.95 percent the previous week. Diesel recorded the largest increase, rising from 26.26 to 50.64 percent, a support of 3.7291 pesos per liter, according to the DOF publication as reported by Expansión. National average retail prices as of July 17 stood at 23.69 pesos for Magna, 28.48 for Premium, and 27.07 for diesel.
The next DOF publication, on Friday July 24, will determine whether sustained oil-market pressure requires maintaining or expanding the stimuli. The weekly mechanism allows Mexican fiscal policy to respond with agility to a global energy environment that shows no signs of stabilizing in the near term, as the Middle East conflict keeps markets on alert.
This article was produced with artificial intelligence assistance from verified sources and reviewed by a human editor before publication.