Aetna Ins. Co. V. Loveland Gas & Electric Co‪.‬

Eleven insurance companies brought suit in the District Court against the Gas Company to recover, by way of subrogation, payments made by them to their insured under fire insurance policies, for damages to his building resulting from an explosion and fire of liquefied petroleum customarily known as propane gas, which emanated from a cylinder or tank supplied by the Gas Company to a tenant of the insured property owner. Jurisdiction was based on diversity of citizenship.