Should I lease with a third party or Continental?

More confusion…We’re currently getting royalties from Continental for Bowery production. An oil and gas company wants to lease our rights in Carter county which also will entitle us to Courbet bonus and royalties. I was sent a draft lease and it’s back dated to Sept 1, 2022. Is that normal? Will signing a new lease affect our current payments from Continental? So much info…lol.