Welcome to the forum, I moved your question over to Cooke county. Suggest that you read the trail of message there.
Regarding this order. I would not go for a five year plus an option. Only three year. The eight year time frame is likely not in your favor. 10% royalty is unacceptable and below the usual minimum offer of 12.5% which is a 1/8th royalty. Most of us would want at least 3/16ths. In my opinion this is NOT a decent offer for the mineral owner. The group offering it would think it is great.
It is wise to get a good oil and gas attorney to look over any draft lease as most of them are not in the mineral owner’s favor and need quite a bit of edit work. The directories tab above has several Texas attorneys.