Munawar H. Hidayatallah

Part of Aly Energy Services, Inc., Aly Operating, Inc. is engaged in oilfield manufacturing, distribution and services. The American company was founded by Munawar H. Hidayatallah. Munawar H. Hidayatallah has been the CEO since incorporation. Aly Operating was acquired by Preferred Voice, Inc. on May 14, 2013.

Stewart & Stevenson LLC designs, manufactures and markets oil and gas equipment. It offers products and services to a variety of industries such as agriculture, construction and industrial, marine, material handling, military and government, mining, oil and gas, on-highway and transportation, power generation, and rail. The company was founded in 1902 and is headquartered in Houston, TX.

Allis-Chalmers Energy, Inc. provided equipment to the oil and natural gas exploration companies. It operated through two segments: Drilling Services and Well Services. The Drilling Services segment provided international and domestic drilling, directional drilling, underbalanced drilling, tubular services, and rental services operations. The Well Services segment provided production services and valve manufacturing operations. The company was founded by Munawar H. Hidayatallah in 1913 and was headquartered in Houston, TX.

Part of Archer Ltd., OilQuip Rentals, Inc. provides air drilling services for the natural gas industry. The American company was founded by Munawar H. Hidayatallah. OilQuip Rentals was acquired by Allis-Chalmers Energy, Inc. on May 10, 2001 for $19.50 million.

IRI International Corp. manufactures land-based drilling and well-servicing rigs and rig component parts. It designs manufactures, sales and lessees onshore and offshore oilfield equipment for the domestic and international markets. The company is headquartered in Houston, TX

Permian Pelican, Inc. operates as an investment holding company. The company is headquartered in Houston, TX.