Bruce W. McCullough

Financial Industry Regulatory Authority, Inc. engages in the provision of securities regulation, complementary compliance, and technology-based services. Its services include writing and enforcing rules governing the activities of securities firms with brokers, examining firms for compliance with those rules, fostering market transparency, and educating investors. The company was founded in 2007 and is headquartered in Washington, DC.

Vanguard Operating LLC develops oil and gas properties. The company is headquartered in Houston, TX.

Encore Energy Partners Operating LLC provides oil and gas production services. The company is headquartered in Houston, TX.

Vanguard Natural Resources LLC is an oil and natural gas exploration company, which focuses on the acquisition and development of mature long-lived natural gas and oil properties. Its properties are located in the Appalachian Basin in Kentucky and Tennessee; the Permian Basin in West Texas and New Mexico; and the Big Horn Basin in Wyoming and Montana. The company was founded in October 2006 and is headquartered in Houston, TX.