1975Standard Industries, Inc. was purchased by Ashland Oil and became a division of Ashland Paving and Construction, Inc. Standard became APAC-Oklahoma, Inc.
1960The McClinton Brothers parted ways. Charles moved to Harrison, Arkansas and started McClinton Inc. Clark stayed in Fayetteville and incorporated the original company.
1960Bill Dills, with the help of a chemist from Reno, Nevada, patented a formula to remove iron from sand making it possible to produce silica sand for use in the glass manufacturing industry.
1955Standard Industries, Inc. was formed and purchased all of the outstanding stock of Standard Paving Company, Acme Materials Company & Standard Roofing Company from the four sons of J.I. Gray. Thru 1975 Standard continued in its role as a highway and street contractor, as well as a supplier of crushed stone and asphalt in the Tulsa, Ponca City, & Pryor areas.
1948McClinton Brothers leased Johnson Quarry. They became the first area contractor with a permanent location for crushed stone and agricultural lime. They later bought the quarry and two other quarries, one at West Fork and the other at Avoca.
1946Brothers, Clark McClinton & Charles Wesley McClinton, started McClinton Brothers with an investment of $5,000. The company was headquartered in Fayetteville, Arkansas. They started by clearing land and building ponds for farmers.