Typically, development can occur even if there is not consent among all the owners of the minerals. This is known as forced pooling. Texas has its own rules regarding forced pooling. This usually results in an administrative body making a determination of a fair royalty and lease bonus. Sometimes owners are allowed to chose between several options. If an owner does not respond a choice is made for him/her.
So, don’t worry that one of your relatives doesn’t sign or if you don’t want to. It won’t stop development.