Greenhill Materials Division
Founded in 2000, Greenhill Materials specializes in all crushed limestone products, with both washed and unwashed limestone available (City, County, ODOT and Corp of Engineers qualified rock). Greenhill Materials is able to service the greater Tulsa Metropolitan Area including Rogers, Washington, and Osage Counties. Greenhill Materials has a railcar loading facility with rail access to Oklahoma City and other Midwest towns. With millions of tons of rock in reserves and certified quality control and quality assurance on staff, Greenhill Materials can handle multiple customers ranging from large heavy and highway contractors, to builders and developers, to individual cash customers.

Greenhill Concrete Division
Greenhill Concrete is a full service ready mixed concrete producer serving the Tulsa Metro and surrounding markets since 2007. Fixed plants located in the Owasso, Broken Arrow and Sapulpa areas along with over 50 mixer trucks allows Greenhill Concrete to service many different markets and project sizes. In addition Greenhill Concrete has a portable central batch plant. Greenhill Concrete has successfully serviced projects ranging from small cash customer pours, to 80,000 cubic yard ODOT projects. Greenhill Concrete boasts a staff of certified, in-house quality control personnel and a certified lab and has provided consistent quality to projects with even the most stringent specifications.


Borton, L.C.
Founded in 1926, Borton, L.C. is a construction and design engineering firm based in Hutchinson, Kansas. Completed projects are located throughout the United States and also in Mexico and Saudi Arabia. Borton specializes in slipform construction and repair of dry bulk facilities. Borton also has expertise in barge, rail, and truck load out facilities; steel grain storage; material handling; milling facilities; coal and cement plants; millwright work; large foundations; and is expanding into the construction of ethanol plants and wind farms.

Oklahoma Construction Materials Division
Founded in October, 2003 Oklahoma Construction Materials specializes in washed and unwashed crushed limestone and granite materials. Oklahoma Construction Materials services multiple customers throughout the Oklahoma City Metropolitan Area. The range of customers includes large highway contractors, builders, developers and individual cash customers. Aggregate Certified Quality Control and Quality Assurance specialist are on staff and all rock is City, County, ODOT and Corp of Engineers certified. Oklahoma Construction Materials has the capability to handle the smallest driveway to the largest Interstate highway. Regardless if the project is large or small, Oklahoma Construction Materials can handle the aggregate material requirements of the project.


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