According to MANA, The blaze on the tanker Burgos occurred off the coast of Boca del Rio in Veracruz state and all the crew were safe, Pemex said in a tweet.
In April, more than 30 people died and dozens were injured in an explosion at a petrochemical plant in southeast Veracruz state, a joint venture between Pemex and another firm.
In 2013, at least 37 people were killed by a blast at Pemex's Mexico City headquarters, and 26 people died in a fire at a Pemex natural gas facility in northern Mexico in 2012.
A 2015 fire at a Pemex platform in the Bay of Campeche affected oil output and cost the company up to $780 million.