Dorchester Minerals, L.P. (NASDAQ:DMLP) is among the most profitable oil stocks to buy now. According to a recent disclosure with the SEC, Goldman Sachs Group Inc. raised its position in Dorchester Minerals, L.P. (NASDAQ:DMLP) by 6.3% during the first quarter. Following the acquisition of 2,101 shares, the global bank now owns 35,684 shares of the energy company’s stock, which translates to an investment of $1,073,000 and an ownership of nearly 0.08%. The one thing that is truly interesting about Dorchest ...