When major leaks or fires happen at oil and gas facilities, complicated chemistry ... One of the gases that leaked from the Pemex facility in Deer Park on Thursday was hydrogen sulfide.

A hydrogen sulfide leak at Pemex's Deer Park refinery near Houston operated by Pemex killed two workers and triggered shelter-in-place orders for nearby residents in October. ExxonMobil's Beaumont ...

The Buzbee Law Firm filed a lawsuit against Pemex Monday, alleging the Mexico state-owned petroleum company was negligent in ...

The tycoon is also a eyeing participation in the country's most important onshore natural gas field, Ixachi, the government source and two other sources said. While Pemex is the current operator ...

Representatives of Pemex and Grupo Carso have discussed different schemes to make Lakach profitable, at a lower gas price than they had initially projected, the sources said. Grupo Carso wants to ...