Dow Jones: Centrica PLC (CNA.LN), one of the U.K.'s main energy providers, has signed a deal to buy billions of cubic meters of liquefied natural gas from a U.S. plant, in the first deal clearly intended to bring gas from North America to the U.K. The contract with Cheniere Energy Partners LP (CQP) will see Centrica import 1.75 million metric tons of gas per year, enough to power around 1.8 million U.K. homes, according to a statement by the firm. It is the first such deal between a U.S. supplier and a U.K....