Our surface mines in Mill Creek use natural gas and electricity to produce whole grain, ground and fine ground silica through hydraulic mining. The reserves are part of the Oil Creek Formation in south central Oklahoma. Since acquiring the facility, we renovated and upgraded its production capabilities to enable it to produce multiple products through various processing methods, including hydraulic sizing, fluid bed drying, grinding and air sizing.
These production techniques allow the Mill Creek facility to meet a wide variety of focused specifications on product composition for glass, foundry, fillers and extenders, building product and oil and gas proppant customers.
We acquired the Mill Creek facility in 1987 by merger with the Pennsylvania Glass Sand Corporation, which had historically used the property to produce whole grain silica for customers in industrial and specialty products end markets.
The facility is located approximately 100 miles southeast of Oklahoma City and is accessible by major highways including U.S. Interstate 35.