 NEW ORLEANS--BUSINESS WIRE--Former Attorney General of Louisiana Charles C. Foti, Jr., Esq. and the law firm of Kahn Swick Foti, LLC KSF are investigating the proposed merger of Tengasco, Inc. NYSE: TGC with Riley ExplorationPermian, LLC, pursuant to which Tengasco shareholders will end up owning just 5 of the combined company. KSF is seeking to determine whether the merger and the process that led to it are adequate, or whether the merger undervalues the Company. If you believe 