Exhibit 4(a) November 13, 1997 Securities and Exchange Commission 450 5th Street NW Washington, DC 20549 Ladies/Gentlemen: The company agrees to furnish the Commission upon request copies of the following long-term debt instruments: 1. Credit Agreement, as amended, between Equitable of Iowa Companies and Morgan Guaranty Trust Company of New York, as Agent, and the Bank of New York, as Administrative Agent, and participating banks, dated May 10, 1996, re: line of credit in amount of $300,000,000. Very truly yours, /s/ Paul E. Larson Paul E. Larson Executive Vice President and CFO Equitable of Iowa Companies