Using data over the past five years, a stochastic view (devoid of any other context aside from the temporal) reveals a neutral bias in Occidental stock. A position entered at the beginning of the week ...

Warren Buffett recently bought shares in Occidental Petroleum, Sirius XM and VeriSign. Berkshire Hathaway now holds over 10% ...

Through this deal, announced in December, Ecopetrol has acquired full ownership of this key asset in the Piedemonte Llanero ...