EIA: “The Haynesville Shale in Louisiana recently surpassed the Barnett Shale in Texas as the Nation’s highest-producing shale gas play, according to reported pipeline flows. Natural gas production from the Louisiana section of the Haynesville overtook the Barnett’s volumes in early to mid-February, even after the Barnett’s recovery from the winter’s well freeze-offs. The Barnett Shale has been the country’s leading shale gas producer during the past decade.”