Provision of services in favor of the principal establishment to support the commercial activities of the principal establishment, in particular; provision of market analyses identifying opportunities for purchasing oil or petroleum product cargoes; negotiation of contracts proposed for the purchase of oil or petroleum products for and on behalf of the principal establishment and submission of these contracts to the principal establishment for approval; assistance to the principal establishment in the operation, execution and management of oil or petroleum product purchase contracts; provision of advice to the principal establishment on price risk management services; negotiation and signing of contracts related to financial products concerning the above, including but not limited to options; provision of services and advice to the principal establishment on the storage and blending of oil or petroleum products, including on board the principal establishment's vessels.