Greek shipowner Dynagas Partners is considering changing management and service providers on two Russian-chartered LNG tankers to comply with upcoming European Union and UK sanctions. In its first-quarter results, Dynagas said its 155,000 cubic meter shipping capacities Yenisei and Lena (both built in 2013) are on charters to Singapore-based Yamal Trade until 2033 and 2034, respectively. Both vessels carry Russian-produced LNG for offloading around the world.