Russian oil and gas giants LUKoil, Gazprom find Caspian Oil Field

    Russia's OAO Gazprom and OAO LUKoil say they have discovered a sizable oil and gas field in the Caspian Sea.     The companies didn't say in their announcement Thursday how much oil the offshore field near the border with Kazakhstan could have.     But Dow Jones Newswires quotes an official as saying it could...