Nancy Nelson

BlueStone Natural Resources, Inc. explores oil and natural gas resources. It plans to actively acquire assets in South Texas, East Texas, the Texas panhandle and Western Oklahoma. It utilizing funds from the management team and Natural Gas Partners. The company was founded in February 2006 and is headquartered in Tulsa, OK.

Part of Unit Corp., Brighton Energy LLC is a company that explores and develops oil and gas properties. The company is based in Tulsa, OK. Brighton Energy was acquired by Unit Corp. on October 16, 2006 for $67 million.

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.

BlueStone Natural Resources II LLC engages in the exploration of oil and natural gas resources. The company was founded on January 30, 2012 and is headquartered in Tulsa, OK.

Millbrae Energy LLC operates in the development of oil and gas reserves. The firm focus on the acquisition, development and production of oil and natural gas reserves in the mid-continent area of the U.S. The company was founded by Stewart Mills Reid in 2001 and is headquartered in Greenwich, CT.

Vintage Petroleum, Inc. was a energy company. The company was engaged in the acquisition, exploitation and exploration of oil and gas properties and the marketing of natural gas and crude oil. The company was headquartered at Tulsa, OK.