 Dorchester Minerals LP NASDAQ:DMLP insider Minerals Operating Dorchester acquired 7,000 shares of the companys stock in a transaction dated Thursday, February 20th. The shares were bought at an average cost of 16.21 per share, with a total value of 113,470.00. Minerals Operating Dorchester also recently made the following trades: On Tuesday, February 18th, Minerals Operating ... 