Nl Industries, Inc, in No. 97-5030 v. Commercial Union Insurance Company Stonewall Insurance Company Aetna Casualty & Surety Company of America Lexington Insurance Company Midland Insurance Company First State Insurance Company Insurance Company of North America American Centennial Insurance Company Utica Mutual Insurance Company National Union Fire Insurance Company International Insurance Company International Surplus Lines Insurance Company Evanston Insurance Company. Commercial Union Insurance Company, Third-Party v. Certain Underwriters at Lloyd's Insurance Company of North America Allstate Insurance Company, Solely as Successor in Interest to Northbrook Excess and Surplus Insurance Co., Formerly Known as Northbrook Insurance Company, Third-Party International Insurance Company, in No. 97-5028, Insurance Company of North America, in No. 97-5029, Commercial Union Insurance Company, in No. 97-5031

Court of Appeals for the First Circuit