The amendment to the Hydrocarbons Law regarding asymmetric regulation has been published in the Federal Official Gazette, becoming effective as of May 20, 2021.  Additional details at the link below.

https://www.mayerbrown.com/en/perspectives-events/publications/2021/05/mexico-amendment-to-hydrocarbons-law-regarding-asymmetric-regulation-is-published?utm_source=vuture&utm_medium=email&utm_campaign={vx:campaign%20name}