OK here it is. Out of the blue we were contacted by individuals and several O&G companies in 2010 about purchasing or leasing our mineral rights we knew nothing about but tied back to family. These are reputable well known companies. We sign a lease in 2010 that expired in 2013 due to economy. We were paid on that lease after title review by 6 people in that company. Company tried to release but offered a better deal by another company. They did not sign lease because in their research they said we did not own the mineral rights. We now have another offer from a third company at even higher amount. Whats the deal? We obviously want a No warranty clause and what is a good one?  Can any body give incite as to why companies have differing opinions. Should we count on the O&G company to make that determination? This is in Pennsylvania. Is there some law regarding proper recording or look back period by law that determines who owns those rights if a conflict exist.?