On October 3, 2025, in the evening edition of the Official Gazette of the Federation, several decrees were published issuing new regulations in the energy sector, as well as amendments to existing regulatory provisions.

In particular, the following were issued:

1. Regulation of the Hydrocarbons Sector Law.
2. Regulation of the Geothermal Law.
3. Regulation of Electricity Sector Law.
4. Regulation of the Biofuels Law.
5. Regulation of the Energy Planning and Transition Law.
6. Decree amending and repealing various provisions of the Regulation of the Hydrocarbons Revenue Law.

These regulations update the regulatory framework applicable to the Mexican energy sector, aiming to govern binding planning and energy transition, as well as to establish provisions regarding permits, concessions, and coordination among the competent authorities in the areas of hydrocarbons, electricity, biofuels, and geothermal energy.

At RGR, we are reviewing the scope and implications of each of these regulations and their potential impact on regulated activities within the sector. Should you require a specific analysis or wish to identify possible implications for your operations, we would be pleased to assist with a detailed review.