Allegations in the underlying complaint proved crucial in analyzing coverage for an additional insured under Texas' eight-corners rule. See The Burlington N. and Santa Fe R. R. Co. v. National Union Fire Ins. Co. of Pittsburgh, Pa., No. 08-06-00022CV, 2009 Tex. App. LEXIS 9347 (Tex. Ct. App. Dec. 9, 2009).
The railroad entered