LNGCentrica signs $8.5 billion LNG contract with Delfin MidstreamAgreement boosts chances of positive final investment decision for the Delfin Deepwater Port offshore LouisianaTransatlantic agreement: Centrica has reached an agreement with US LNG exporter Delfin Midstream for a 15-year deal worth £7 billionPhoto: CENTRICAMark PasswatersHouston