Alon USA Partners, LP (Alon) is engaged principally in the business of operating a crude oil refinery in Big Spring, Texas, with a crude oil throughput capacity of approximately 73,000 barrels per day, which the Company refers to as its Big Spring refinery. The Company refines crude oil into finished products, which the Company markets primarily in Central and West Texas, Oklahoma, New Mexico and Arizona through its integrated wholesale distribution network to retail convenience stores and other third-party distributors. Its Big Spring refinery is located on approximately 1,310 acres in the Permian Basin in West Texas. Major processes at its Big Spring refinery include fluid catalytic cracking, naphtha reforming, vacuum distillation, hydrotreating, aromatic extraction and alkylation. Its Big Spring refinery produces ultra-low sulfur gasoline, ultra-low sulfur diesel, jet fuel, petrochemicals, petrochemical feedstocks, asphalt and other petroleum products.