Investors INVESTOR RELATIONS On February 20, 2017, Delta entered into a Merger Agreement with PNG and Drake Merger Sub Inc. ("Merger Sub”), a new wholly owned subsidiary of PNG Companies, LLC ("PNG”). The Merger Agreement provided for the merger of Merger Sub with and into Delta, with Delta surviving as a wholly owned subsidiary of PNG.Each share of Delta common stock issued and outstanding immediately prior to the closing was converted automatically into the right to receive $30.50 in cash per share, without interest, less any applicable withholding taxes.Upon consummation of the Merger on September 20, 2017, Delta common stock was delisted from NASDAQ. Delta and its Board of Directors appreciate the support of its shareholder over the past sixty-eight years. The following are links to historical shareholder materials:SEC FilingsHistorical Stock PricesDividend HistoryIRS Form 8937 Transfer Agent and Registrar ComputershareCorporate Actions250 Royal StreetCanton, MA 02021Phone: 800-546-5141Communications regarding stock transfer requirements, lost certificates, changes of address or other items may be directed to Computershare Investor Services, LLC, the Transfer Agent and Registrar. Communications regarding dividends, the above items or any other shareholder inquiries may be directed to: Computershare