Four Corners Materials was formed in 1997 when Oldcastle Materials purchased multiple companies throughout Northwest New Mexico and Southwest Colorado, the oldest of which was founded in 1953. Over the years, we have incorporated additional companies to increase our diverse mix of product lines. Four Corners Materials is the largest producer of sand and gravel products in the Four Corners... Read More

Sierra has been providing roustabout and construction services to customers throughout the San Juan Basin for over 30 years. Sierra Oilfield Services is interested in building and maintaining a relationship based on open communication, respect, good faith, understanding, and fairness. Our knowledge and experienced supervisors, operators, and foremen combine to use their expertise to ensure that the client gets exactly... Read More