Four companies have expressed interest in bidding for work on unconventional gas in Saudi Arabia as the world’s top oil exporter pushes ahead with plans to develop challenging shale deposits, industry sources said. The companies are South Korea’s GS Engineering and Construction, Italy’s Maire Tecnimont, Japan’s JGC and Canada’s SNC-Lavalin, the sources told Reuters. State-run Saudi Aramco’s project will involve building processing facilities, wellheads and pipelines for the gas in Turaif in the northern part of Saudi Arabia where the big mining project Waad al-Shamal is under development, the sources said. Saudi Aramco, SNC-Lavalin, JGC and GS declined to comment, while Maire Tecnimont was not available for comment. The search for gas has been a priority for Saudi Arabia as it struggles to keep pace with rapidly rising domestic demand. Aramco plans to produce as much as 200 million cubic feet per […]