Chalk wells are much cheaper to drill than Eagle Ford wells due to not having to frac the laterals. Eagle Ford results in this area have been less than great to even uneconomic historically. Make sure you have a solid reference point as to what base of Austin Chalk is ( tie to existing local well and get independent confirmation on this pick). Plus make sure lease has wording to ensure operator getting directional data to share with you to make sure any horizontal is not drilled into section below the Austin chalk. The royalty and term looks good to me but bonus seems light. I would shoot for $500 per net acre and not settle for less than $350.