Janet D. Jamieson

Ernst & Young LLP engages in the provision of accounting, assurance, tax, transaction, and advisory services. It specializes in the actuarial, analytics and big data, cyber security, accounting compliance and reporting, center for board matters, international financial reporting standards, country tax advisory, global trade, tax accounting, and climate change and sustainability. The company was founded in 1989 and is headquartered in New York, NY.

Part of C/R Energy Jade LLC, Sapphire Power Holdings LLC operates natural gas fired power generation projects. The company is based in Austin, TX.

Riverstone Holdings LLC operates as an energy focused investment manager. It conducts buyout and growth capital investments in the exploration and production, midstream, oilfield services, power, and renewable sectors of the energy industry. The company was founded by David Matthew Leuschen and Pierre Fernard Lapeyre, Jr. in 2000 and is headquartered in New York, NY.

Raven Power Holdings LLC operates as a power company. It owns coal fired power plants. The company was founded in 2000 and is headquartered in New York, NY.

Optim Energy Altura Cogen LLC operates a natural gas-fired cogeneration plant. The company was founded in 1985 and is headquartered in Channelview, TX.

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.

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.

ILX Holdings II LLC provides oil and gas exploration services. The company is headquartered in Houston, TX.