The typical asking rate per listing is in the $20's per square foot per year. The Payne County submarket is going through a an increase in rates. In the last 3 months, the median rate went up $23 per sqft per year.
In the last 90 days, 7 listings have been listed, which means leases most likley are leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,630 sqft. Most properties in this area are around 2 floors. Most buildings in this region were built in 1994 and are Class A.