Based on recent market reports, prices vary significantly depending on the variety and quality (e.g., "horse quality" vs. "cow hay"):
Often used for horses; prices for large round bales range from $30 to $60 depending on fertilization and weed control. hay-for-sale-in-oklahoma-craigslist
Generally the most affordable "cow hay," often found for $20 to $45 per 4x5 or 5x6 round bale. Based on recent market reports, prices vary significantly
Usually indicates cleaner hay with higher protein and fewer stems. Buying Tips for Oklahomans Oklahoma Direct Hay Report - USDA Based on recent market reports