Info on how to determine rights

Good morning, our family was contacted back in 2020 by a rep from Patch Energy, about mineral rights owned by my husband and his brother through their deceased father that we are unaware of in Ward County, Tx. The company told us they were working on figuring out any other heirs and a sending us a possible lease offer, however we never heard anything else. Their family (Wylie) was big in Texas years ago. Wondering if anyone can suggest who we can contact to try to find this information out for ourselves? No really sure where to start.