David L. Pitts

Carrizo Oil & Gas, Inc. engaged in the exploration, development, and production of natural gas and oil. Its operations included Delaware Basin and Eagle Ford Shale. The company was founded by Sylvester P. Johnson IV and Steven Alan Webster in December 1993 and was headquartered in Houston, TX.

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.

Arthur Andersen LLP used to provide accounting services. It was also into consulting services for clients that operate businesses throughout the United States and around the world. Arthur Andersen was founded in 1913 and was headquartered in Chicago, IL.