Gold Reserve sued rival Rusoro for allegedly violating an agreement to join a bid to acquire the controlling shares of Citgo as a part of a US court auction of the Venezuela-owned oil refiner to satisfy debts owed by the government. https://t.co/4iJs5vx57b ...

Oil refiner Delek US Holdings claims it lost over $30 million after buying a cargo of crude contaminated with more than 1,000 times the acceptable level of a damaging chemical https://t.co/svuJresRKN ...