Atlas Resource Partners, L.P. is an independent developer and producer of natural gas, crude oil and natural gas liquids (NGL), with operations in basins across the United States. The Company is a sponsor and manager of tax-advantaged investment partnerships (drilling partnerships), in which it co-invests, to finance a portion of its natural gas, crude oil and natural gas liquids production activities. The Company operates through three segment gas and oil production, well construction and completion, and other partnership management. Its production positions are in the areas, including Barnett Shale/Marble Falls, Appalachian Basin, Coal-Bed Methane, Rangely, Eagle Ford, Mississippi Lime/Hunton and Chattanooga Shale. The Barnett Shale and Marble Falls play are located east of the Bend Arch and west of the Quachita Thrust in the Fort Worth Basin of northern Texas. It has various coal-bed methane developments across coal-bed methane producing areas.