BNamericas takes a look at assets under management last year and which of the country's four providers give the heftiest returns to affiliates.
Proven hydrocarbon reserves stood at 1.659Bboe on December 31, up from 1.598Bboe a year earlier, according to the state-controlled company.
The company failed to post two bid bonds after signing a 2012 contract to rehabilitate the CA-02 Occidente highway, which was never finished.
The upgrades will reduce agricultural water usage and increase output.
Water scarcity in several neighborhoods has caused many protests and street blockades.