The typical asking rate per listing is in the $10's per square foot per year. The Tulsa region is going through a decrease in rates. In the last 3 months, the median rate decreased $1 per sqft per year. That's a 7% decrease in rent.
In the last 90 days, 342 listings have been listed, so you'll want to check back regularly for new listings. About 1% of the listings in the Tulsa are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 4,870 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this market are close to 2 floors. Most buildings in this area were built in 1981 and are Class B.