Cooperative advertising and marketing namely by e-mail, direct mail, and print advertising for appraisals, auctions, refurbishing equipment, investment recovery consulting, trading surplus oilfield equipment and private, negotiated and sealed-bid equipment sales; Private, negotiated and sealed-bid equipment sales and purchases (Internet and traditional); Auction services (Internet and traditional); Trading surplus (both new and used) petroleum, construction, agriculture, mining, transportation, and power equipment, Appraisals; Investment recovery consulting services; and Refurbishment of surplus (both new and used) petroleum, construction, agriculture, mining, transportation, and power equipment