SHCP
Secretariat of Finance and Public Credit.
It establishes economic conditions for reservoir tenders and exploration and exploitation contracts for hydrocarbons.
SENER
Secretary of Energy.
Establishes, conducts and coordinates energy policy.
SEMARNAT
Secretariat of the Environment and Natural Resources.
Environmental regulator through the ASEA (National Agency for Industrial Safety and Environmental Protection of the Hydrocarbons Sector)