Marcelo D. Guiscardo

Vantage Energy Services, Inc. operates as a blank check company. It acquires through a merger, capital stock exchange, exchangeable share transaction, and other similar business combination in the oilfield services industry. The company is headquartered in Houston, TX.

Pioneer Natural Resources Co. operates as an independent oil and gas exploration and production company. The firm engages in hydrocarbon exploration in the Cline Shale. It focuses on the operation of the Permian Basin, Eagle Ford Shale, Rockies, and West Panhandle projects. The company was founded by Scott Douglas Sheffield on April 2, 1997, and is headquartered in Irving, TX.

Quartermaster, Inc. operates apparel retail stores in California and Nevada. It provides clothing, handcuffs, flashlights, eyewear, batons, bags and packs, holsters, knives and tools, parade and drill products, uniforms, tactical uniforms, women's gear, footwear, equipment, duty gear, gloves, badges and IDs, watches, and body armor products. The company was founded by James R Dirosa in 1974 and is headquartered in Cerritos, CA.

Global Directive Marketing Initiatives, Inc. provides online marketing services. It services include search engine, paid search marketing, social media, brand protection and web analytics services. The firm's clients include the automotive, medical, banking and restaurant industries. The company was founded by Daniel Moricoli in 1979 and is located in Chicago, IL.

QM Equipment SA designs, manufactures and assembly of industrial equipment. It engages in the design and development of complex well assistance equipment for oil extraction. The company was founded by Claudio Nortman and Adrian Ramos on September 29, 2004 and is headquartered in Batán, Argentina.