Ecopetrol, Permian Basin and Occidental Petroleum

Colombian President Gustavo Petro on Tuesday called for the sale of state oil firm Ecopetrol's fracking operations in the ...
One such company is Occidental Petroleum (NYSE: OXY), Berkshire Hathaway's sixth-largest holding. Don't get me wrong: Occidental Petroleum appears to be a well-run company. Buffett has expressed ...
Ecopetrol SA engages in the exploration, development, and production of crude oil and natural gas. It operates through the following segments: Exploration and Production, Transportation and ...