Justin H. Wilks

Wilks Masonry Corp. operates as masonry contractors. The company was founded in 1995 and is headquartered in Fort Worth, TX.

FTS International, Inc. engages in the provision of oil and natural gas well completion services. Its services include pressure pumping, wire line and perforating, reservoir optimization, and equipment manufacturing. The company was founded in 2002 and is headquartered in Fort Worth, TX.

CARBO Ceramics, Inc. is an oilfield services technology company. The firm manufactures and supplies ceramic proppant and resin-coated sand. It operates through the following segments: Oilfield and Industrial Technologies and Services; and Environmental Technologies and Services. The Oilfield and Industrial Technologies and Services segment manufactures and sells ceramic technology products and services, base ceramic proppant and frac sand for both the oilfield and industrial sectors. The Environmental Technologies and Services segment intends to protect operator?s assets and minimize environmental risks and lower lease operating expense. The company was founded in 1987 and is headquartered in Houston, TX.