Goodrich Petroleum Corporation and subsidiaries engage in the exploration, exploitation, development, and production of oil and natural gas. It operates primarily on the Cotton Valley trend of east Texas and northwest Louisiana, and the transition zone of south Louisiana. The company owns working interests in 139 active oil and gas wells located in 19 fields in 3 states. Goodrich has interests in the Dirgin-Beckville, North Minden, South Henderson, Bethany-Longstreet, Cotton, and Cotton South fields in the Cotton Valley trend of east Texas and northwest Louisiana. Its south Louisiana operations consist of Burrwood/West Delta 83 fields, Lafitte field, Second Bayou field, St.Gabriel, Plumb Bob fields, Ada field, Lake Raccourci field, Pecan Lake field, and Plumb Bob fields. In addition, the company has interests in Mary Blevins field in Smith County, Texas; Midway field in San Patricio County, Texas; Mott Slough field in Wharton County, Texas; and the Garfield Unit in Kalkaska County, Michigan. As of December 31, 2005, the company had estimated proved reserves of approximately 5.0 MMBbls of oil and condensate, and 143.0 Bcf of natural gas. Goodrich Petroleum was founded in 1970 and is based in Houston, Texas.