Frank B. Rosenberg

Crown Central Petroleum Corp. operates refineries, gasoline stations and convenience stores. It has around 2 refineries in Texas, 13 product terminals and 362 gasoline stations. The company was founded in 1930 and is located in Baltimore, MD

Rosemore, Inc. explores and trades oil and natural gas. It offers oil and gas marketing business is a hardy perennial. The company was founded in 1931 and is headquartered in Baltimore, MD.

Tema Oil & Gas Co. explores and trades oil and natural gas. It focuses in the Permian Basin and other high-potential proven basins. The company was founded in 1999 and is headquartered in Houston, TX.

Attransco, Inc. provides domestic transportation services with a focus on deep seal transportation. The private company is based in Baltimore, MD.

Rosehill Resources, Inc. engages in the production of oil and natural gas. It focuses on the acquisition, exploration, and development of unconventional oil and associated liquids-rich natural gas reserves in the Permian Basin. The company was founded on September 21, 2015 and is headquartered in Houston, TX.