Mexico’s Bill to Amend the 13th Transitory Article of the Hydrocarbons Law


On May 4th, 2021, the decree amending and adding various provisions to the Hydrocarbons Law (the Law) was published in the Federal Official Gazette.

In addition to the amendments and additions referred to in a Greenberg Traurig Alert published in April 2021 (Mexico’s Bill with Draft Decree to Amend and Add Various Provisions to the Hydrocarbons Law), on April 21, 2021, the Chamber of Deputies approved the draft decree that amends the Thirteenth Transitory Article of the Law (the Bill), which was sent for review to the Senate, and approved on April 29, 2021.

The Bill addresses the following:

Asymmetric Regulation: General Framework

The current Transitory Article 13 of the Law authorizes the Energy Regulatory Commission (Comisión Reguladora de EnergíaCRE) to impose certain rules on Petróleos Mexicanos (Pemex) to limit its dominating power in the market, including:

This Transitory Article established that the aforementioned regulations will be in force until a more competition is achieved, to promote development of the markets.

In relation to the above, the CRE issued Resolution RES/156/2016, published in the Federal Official Gazette on March 22, 2016, which contains an asymmetric regulation for Pemex for the first-hand sales and the commercialization of gasoline and diesel (the Terms and Conditions), which state:

In addition to RES/156/2016, the CRE also issued resolution RES/2508/2017, to regulate how Pemex determines the purchase price of first-hand sales and sales made at storage terminals. The resolution also regulates what discounts are granted by Pemex, so that:

Resolution RES/2508/2017 also states that once the CRE determines that entities other than Pemex cover at least 30% of the joint sales of gasoline and diesel, Pemex may freely determine the maximum price of first-hand sales and those made in storage terminals.

Finally, the CRE issued the resolution A/057/2018, which annulled RES/2508/2017, and provided that until it is determined that 30% of the joint sales of gasoline and diesel are made by entities other than Pemex:

— are not unduly discriminatory;

— are not conditional on the contracting for other products or services offered by Pemex; and

— are not below the average cost for each first-hand point of sale or list price at each terminal.

Notwithstanding the above, the CRE concluded that a greater participation of entities in the market other than Pemex has been achieved, which resulted in resolution A/043/2019, which annulled resolution A/057/2018. The new resolution did not provide a methodology for Pemex to calculate the maximum price to replace the previous method. Instead, it established that the price calculation methodology would be issued by the CRE only if it was identified that Pemex was involved in unduly discriminatory practices. Therefore, an important part of the asymmetric regulation of setting a methodology for Pemex to calculate the first-hand sale prices of diesel and gasoline was left out, however, various resolutions of the CRE regarding asymmetric regulation remained in force.

The Bill and its Effects

The Bill proposes to amend the 13th Transitory Article of the Law to provide:

The Bill states that the amendments shall become effective on the day following its publication, providing for a 30-day term for the CRE to void all its resolutions issued under the original 13th Transitory Article. The Bill will terminate the asymmetric regulation currently in place pursuant to the  13th Transitory Article of the Law, hence Pemex shall:


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National Law Review, Volume XI, Number 126