Natural gas is increasingly flowing across borders in the Middle East — even between countries that until recently had frosty relations. This week, Qatar agreed to boost liquefied natural gas supplies and expand energy cooperation with Egypt . The move followed a $35 billion deal announced last month under which Israel will export gas to Egypt until 2040. Egypt also agreed this week to supply gas to Syria via the Arab Gas Pipeline . Together, the deals would have been unthinkable just a few years ago, when Cairo was part of the embargo of Qatar and the former Syrian regime was a pariah. Once the new supplies begin, Israeli gas may indirectly fuel power plants in Syria, a sign of how energy needs are reshaping trade flows across the region. — — Mohammed Sergie