Royalty payments

My siblings and I have 90+ acres in Section 14 Block 72 PSL that Chesapeake drilled a well on in September 2008, gas well API 38932512. Our royalty checks started about $1,000 per month each, then down to $600, then to $100. In September 2012 they sold to Shell. Shell’s royalty checks were always $100+. In January 2015 they sold to COG Operating, Midland. Since COG has had it we have only been paid $285 total, and nothing since January 2016. I have called them on this and keep getting a run-around, saying that our balance is in the negative! Who can I contact to check to find out what is going on? Will appreciate any help.

Thomas- I would email them through the Owner Relations part of their website and get a written explanation as to why they think you were overpaid.