Tengasco, Inc. engages in the exploration and production of oil and natural gas in Kansas and Tennessee. Tengasco, Inc. also leases producing and non-producing properties for exploration and development activities. In addition, Tengasco, Inc. owns and operates a 65-mile intrastate pipeline that transports natural gas to customers in Kingsport, Tennessee. Further, Tengasco, Inc. engages in developing and operating treatment and delivery facilities for the extraction of methane gas from non-conventional sources for delivery to natural gas customers through its pipeline system in Tennessee. Tengasco markets its crude oil principally to local refining companies, local utilities, and private industry end-users; and natural gas to local utilities, private industry end-users, and natural gas marketing companies. As of December 31, 2008, Tengasco, Inc. had 184 producing oil wells in Kansas; and 19 producing gas wells and 4 producing oil wells in Tennessee. Tengasco, Inc. was formerly known as Onasco Companies, Inc. and changed its name to Tengasco, Inc. in 1995 as a result of merger with Tengasco, Inc. Tengasco, Inc. was founded in 1916 and is based in Knoxville, Tennessee.