The Texas Court of Appeals found that Exxon Mobil Corporation was an additional insured under the CGL policy for Exxon's service provider. Liberty Surplus Ins. Corp. v. Exxon Mobil Corporation, 2015 Tex. App. LEXIS 12757 (Tex. Ct. App. Dec. 17, 2015).
Exxon contracted with Wyatt Field Service Company to perform "services" as set