The group's principal activity is to manufacture and market tubular products. The energy products includes welded and seamless tubular goods, primarily for use in oil and natural gas drilling and production, as well as welded and seamless line pipe products for oil and natural gas transmission. Its customers include bourland and leverich supply co inc and champions pipe and supply inc. Super-major, major and independent oil and natural gas exploration and production companies in drilling and production applications use its oil country tubular goods and line pipe products. Gas utility and transmission companies also use line pipe products. Substantially all of its oil country tubular goods products are sold to domestic distributors. Line pipe products are sold to both domestic distributors and directly to end users.