1 Filed Pursuant to Rule 424(b)(2) Registration Statement No. 333-09919 Enron Oil & Gas Company Prospectus Supplement dated December 11, 1996 to Prospectus dated September 12, 1996 On December 11, 1996, Enron Corp. sold 7,830,000 shares of the Common Stock of Enron Oil & Gas Company at a price of $26.00 per share. The sale was to an institutional investor in a negotiated transaction.