The state-owned Colombian oil company Ecopetrol and Occidental Petroleum (OXY) have announced plans to potentially invest up to $2 billion over the next 10 years at the onshore oil field La Cira-Infantas should the project prove successful in the early stages. By Evan Kelly The Federal Reserve decided to leave interest rates unchanged, a move that had become increasingly expected as the Fed meeting drew closer, due to low inflation and concerns over instability in global financial and currency markets. Federal Reserve Chairwoman Janet Yellen said that “heightened uncertainties abroad” convinced the board to wait before raising interest rates.