# Mexico energy sector regulatory and permit issues > Live situation record from CLSTR: https://clstr.news/situations/mexico-energy-sector-regulatory-and-permit-issues > Updated: 2026-10-05T15:25:27.000Z. Sources: 7. Developments: 2. Mexico’s energy sector is navigating complex regulatory landscapes involving both traditional fuel imports and emerging biofuel projects. In one instance, the Ministry of Energy (Sener) authorized fuel import permits for Portacelis Gas and Oil, a company established only 52 days prior to the authorization. This permit was issued despite new regulations implemented just nine days earlier that required importers to demonstrate a two-year history of foreign trade to prevent tax fraud. Following the authorization, tax authorities alleged the company engaged in “huachicol fiscal” by under-declaring fuel volumes, leading to claims for 834 million pesos in unpaid taxes. Simultaneously, the biofuel sector faces delays despite the government granting eight permits for the production and distribution of various biofuels. While Sener has issued permits, a lack of secondary regulations and technical standards from other federal agencies—such as Semarnat, Sader, and the SAT—has stalled over $130 million in potential projects. These delays involve the development of technical standards for fuels like biomethane and bioethanol, as well as guidelines for integrating biomethane into natural gas networks. ## Timeline ### 2026-10-05: Mexico biofuel projects face regulatory delays Mexico's $130 million biofuel sector faces delays due to a lack of technical regulations and coordination between federal agencies, despite the issuance of eight initial production and distribution permits. 5 sources. https://clstr.news/cluster/mexico-biofuel-projects-face-regulatory-delays ### 2026-10-04: Mexico's Sener authorized fuel imports for new company despite strict rules Mexico's Sener authorized Portacelis Gas and Oil to import diesel despite the company lacking the required two-year import history, leading to allegations of tax fraud and unpaid duties. 2 sources. https://clstr.news/cluster/mexicos-sener-authorized-fuel-imports-for-new-company-despite-strict-rules --- Cite as: Mexico energy sector regulatory and permit issues. CLSTR, https://clstr.news/situations/mexico-energy-sector-regulatory-and-permit-issues