Mineral rights in Canada

Hello. I’m a relatively new mineral rights owner along with my brother and sister. The three of us inherited mineral rights to a small piece of property in Alberta, Canada, location SE 19-37-27W4M (undivided 1/9 interest). We have had an offer to lease the rights about 3+ years ago. We decided at that time to decline the offer. The property is approx. 17.78 net acres. The offer at the time was $889.00 bonus consideration. The royalty offered was 15%. The property is located nearest the town of Red Deer. Just wondering if we are doing the right thing by patiently waiting for a better offer someday down the road?