Water wells for Fracking

Anyone out there have knowledge about water well for drilling a frac well? Another party and I are wanting to sell water off our land and want the best deal we can get. We are not all that knowledgeable about the contracts and what to look for. My friend owns 1/4 th of the land and I own 1/2 so how would that be divided in the contract? Just needing some information on what to look for.

Got to get busy and find a good attorney in oil and gas

Thank you in advance for any and all assistance,