Robert Willette

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.

Texon Distributing LP engages in transports, distributes, and markets natural gas and oil. It also provides liquids marketing. The company was founded in 1989 by Terry Looper and is headquartered in Houston, TX.

Ferrellgas LP distributes propane and related equipment and supplies. The company was founded on June 14, 1994 and is headquartered in Liberty, MO.

Wilks Brothers LLC is a private multifaceted, family-based partnership headquartered in Cisco, Texas. The firm provides investment advice to individual and institutional clients.

ProFrac Holdings LLC is an oilfield services company. The firm offers high-pressure pumps paired with the frac equipment crafted for laterals and multi-well pads. Its services include manifolds, idle management, dual fuel, lab capabilities, frac pumps, and fire suppression services. The company was founded by Ladd Wilks and Matthew D. Wilks in May 2016 and is headquartered in Willow Park, TX.