On average, listings lease in the $20's per square foot per year. The Broken Arrow region is going through a a boost in rates. In the last 3 months, the median rate went up $22 per sqft per year.
In the last 90 days, 8 listings have been listed, which means new availabilities might be going fast. You'll want to be prepared to tour spaces as quick as possible. About 75% of the available space in the Broken Arrow are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,950 sqft. Most buildings in this market are around 1 floors. Most buildings in this area were built in 2000 and are Class B.