Pierre Lapeyre

Intank, Inc. provides robotic technologies for cleaning and inspecting tank floors. It offers cleaning/decontamination equipment products, spent fuel, vessel, and reactor pool cleaning/decontamination, condensers, robotic equipment/manipulators, and remote handling technology. The company is headquartered in Laurel, MD.

Topaz Power Group LLC owns and operates natural gas and oil-fired plants. It operates a natural gas combined cycle plant and a natural gas steam power generating facility. The company was founded in 2004 and is headquartered in Austin, Texas.

The Convent of The Sacred Heart operates a network of independent schools for girls. The private company is based in New York, NY.

Alta Mesa Holdings LP engages in the acquisition, exploration, development and production of oil, natural gas, and natural gas liquids within the United States. It specializes in engineering analytics and enhanced geological techniques including three-dimensional seismic analysis, and drilling, stimulation, completion, and production methods. The company was founded by Michael E. Ellis in 1987 and is headquartered in Houston, TX.

Three Rivers Operating Co. LLC provides oil and gas exploration services. It focuses on the acquisition, development and exploitation of oil and natural gas reserves in the Permian Basin in West Texas and Southeast New Mexico. The company was founded in 2010 and is headquartered in Austin, TX.

Enduro Resource Partners II LP engages in the production and development of oil and natural gas. The company is headquartered in Fort Worth, TX.

Three Rivers Operating Co. II LLC engaged in the exploration, development, production and acquisition of oil and natural gas reserves in the Permian Basin in West Texas and Southeastern New Mexico, the largest onshore oil and gas basin in the United States. The company was headquartered in Austin, TX.

Part of Alta Mesa Resources, Inc., Alta Mesa Holdings, LP is a privately held company located in the US. Alta Mesa Holdings, LP is engaged in onshore oil and natural gas acquisition, exploitation, exploration, and production. The American company's focus is to maximize the profitability of their assets in a safe and environmentally sound manner. The CEO of the company is Harlan H. Chappelle.

Riverstone Investment Group LLC (Riverstone Investment Group) is a private equity firm, subsidiary of Riverstone Holdings LLC, founded in 2000 by Pierre F. Lapeyre, Jr. and David M. Leuschen. The firm is headquartered in New York.

Part of Enviva, Inc., Enviva Partners GP LLC is a company that produces and supplies wood pellets. The company is based in Bethesda, MD. John K. Keppler has been the CEO of the company since 2013.

Silver Run Acquisition Corp is a blank check company formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses. The company was founded on November 4, 2015 and is headquartered in Houston, TX.

RCP Apex II Syndication Partners LP operates as a private equity fund. The company was founded in 2016 and is headquartered in New York, NY.

Alta Mesa Resources, Inc. is an independent exploration and production company, which is engages in the development of unconventional onshore oil and natural gas reserves. It operates through the following segments: Exploration and Production, Midstream, and Corporate. The Exploration and Production segment sells its production of oil, natural gas, and natural gas liquids (NGL) to customers generally at prevailing spot prices in effect at the time of the sale. The Midstream segment derives its revenue from fees assessed for gathering and processing natural gas, gathering and transporting oil, the sale of processed residue gas and NGLs, and produced water gathering and disposal services. The company was founded in November 2016 and is headquartered in Houston, TX.

Fieldwood Energy, Inc. engages in the acquisition, exploration and development of oil & gas properties. The company was founded in September, 2013 and is headquartered in Houston, TX.

Decarbonization Plus Acquisition Corp. is a blank check company, which engages in effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses. The company was founded on September 7, 2017 and is headquartered in Menlo Park, CA.

Decarbonization Plus Acquisition Corp. II is a blank check company, which formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more entities. The company was founded on December 4, 2020 and is headquartered in Menlo Park, CA.

Decarbonization Plus Acquisition Corp. III operates as a blank check company. It is formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination. The company was founded on January 29, 2021 and is headquartered in Menlo Park, CA.

Decarbonization Plus Acquisition Corp. IV operates as a blank check company. It was formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization, or similar business combination with one or more businesses. The company was founded on February 22, 2021 and is headquartered in Menlo Park, CA.