Group 1 - Dorchester Minerals, L.P. (NASDAQ:DMLP) is recognized as one of the most profitable oil stocks currently available for investment [1] - Goldman Sachs Group Inc. increased its stake in Dorchester Minerals by 6.3% in Q1, acquiring 2,101 shares, bringing its total to 35,684 shares valued at approximately $1,073,000, representing nearly 0.08% ownership [1] - The company operates on a low-cost, high-margin business model, allowing it to expand and seize growth opportunities without significant capital expenditure [2] Group 2 - Dorchester Minerals has demonstrated strong performance, achieving a return of 322.44% over the past five years, significantly outperforming the market return of 99.71% [3] - The company specializes in acquiring, owning, and managing royalty properties, including overriding royalty, net profits, and leasehold interests, and has been committed to maximizing value since its incorporation in 1982 [4]