Lease in Parker County

I am trying to research the going signing bonuses on an oil & gas lease on the west end of Weatherford, Texas. My lease is about to expire and Vantage has offered me $300 an acre and 23% royalty. Is this the going rate in my area? I made a few mistakes on the prior lease and want to be better informed this time. I agree to a 6 month extention for free last time because the well has been drilled, but not producing yet because of pipeline issues. I thought maybe it was a shut in, but apparantly not. I would appreciate any input.