In a significant twist in Colombia’s energy narrative, state-owned petroleum firm Ecopetrol has announced that it has ...
Occidental Petroleum Corp. (NYSE ... Company headquarters are currently in Houston, Texas. It was founded in 1920 in Los Angeles, and tycoon Armand Hammer was chief executive officer from 1957 ...
Occidental Petroleum Corp. (NYSE ... Company headquarters are currently in Houston, Texas. It was founded in 1920 in Los Angeles, and tycoon Armand Hammer was chief executive officer from 1957 ...