Ruben Martin

Part of Martin Midstream Partners LP, CF Martin Sulphur LP is a private company that transports, stores, and markets molten sulfur. The company is based in Chicago, IL. CF Martin Sulphur was acquired by Martin Midstream Partners LP from CF Industries Holdings, Inc. on July 19, 2005 for $18.80 million.

Martin Midstream GP LLC engages in the storage and distribution of petroleum products and by-products. It operates through its segments: Terminalling and Storage, Natural Gas Services, Marine Transportation, and Sulfur Services. The company is headquartered in Kilgore, TX.

Martin Energy Services LLC provides oil distribution, transportation and logistics management services. It is a provider of fuels, lubricants and full service logistical support along the U.S. Gulf of Mexico. The company was founded in 1975 and is headquartered in Houston, TX.

Martin Product Sales LLC markets and distributes primarily petroleum-based products including sulfuric acid, fuel oil and asphalt. The company was founded on October 29, 2002 and is headquartered in Houston, TX.

Oberon Fuels, Inc. engages in the production of clean-burning diesel alternative from waste. It serves the transport sector. The company was founded by Hicks Elliot in 2010 and is headquartered in San Diego, CA.

Martin Midstream Finance Corp. engages in the operation of petroleum bulk stations and terminals. The company is headquartered in Kilgore, TX.

Part of Shield AI, Inc., Martin UAV LLC is a private, advanced technology company based in Plano, TX. The company specializes in building wholly-unique, unmanned aircraft systems and associated flight control software. Its systems are commercially developed to fill critical operational needs in tactical & confined operational environments. Martin UAV's V-BAT series aircraft is the only single-engine ducted fan VTOL that has the ability to launch & recover from a hover, fly up to eleven hours in horizontal flight, and make mid-flight transitions to "hover & stare" at any time throughout a given mission set. The company was founded in 2015. The CEO is Ruben S. Martin. Martin UAV was acquired by Shield AI, Inc. on July 30, 2021.

Senterfitt Holdings, Inc. is a private company that holds various personal investments on behalf of Ruben S. Martin III, the President and CEO of MRMc. The company is based in Longview, TX. The company owns a 49% voting interest (50% economic interest) in Holdings, which is the sole member of the general partner of MMLP.