NOVELTY - Recovering oil involves saccharifying a cellulosic material with an enzyme composition; fermenting the saccharified cellulosic material into a fermentation product with a fermenting organism, where the fermentation medium comprises a hemicellulose, Family 61 glycoside hydrolase (GH61) polypeptide; and/or endoglucanase; distilling the fermentation product to form a whole stillage; separating the whole stillage into thin stillage and wet cake; and recovering the oil from the thin stillage.    USE - For recovering oil, for dewatering a whole stillage, for producing a feed co-product and for producing a fermentation product (claimed) i.e. biodiesel or other biorenewable product.    ADVANTAGE - The method enhances yield and/or quality of by-products from fermentation processes used for producing fermentation products. The method increases oil recovery yield from processes for producing fermentation products and further enhances the quality of distillers dried grains with solubles (DDGS) by removing fat content from DDGS that are produced as by-products in processes for producing fermentation products.    DETAILED DESCRIPTION - Recovering oil involves either: (a) converting a starch-containing material into dextrins with alpha -amylase; (b) saccharifying the dextrins using a carbohydrate source generating enzyme to form a sugar; (c) fermenting the sugar in a fermentation medium into a fermentation product using a fermenting organism, where the fermentation medium comprises a hemicellulase(s), Family 61 glycoside hydrolase (GH61) polypeptide; and/or endoglucanase; (d) distilling the fermentation product to form a whole stillage; (e) separating the whole stillage into thin stillage and wet cake; and (f) recovering the oil from the thin stillage; or (a1) saccharifying a cellulosic material with an enzyme composition; (b1) fermenting the saccharified cellulosic material into a fermentation product with a fermenting organism, where the fermentation medium comprises a hemicellulose, GH61 polypeptide; and/or endoglucanase; (c1) distilling the fermentation product to form a whole stillage; (d1) separating the whole stillage into thin stillage and wet cake; and (e) recovering the oil from the thin stillage. INDEPENDENT CLAIMS are included for the following:    (1) dewatering a whole stillage, involving either the steps (a) to (e) where more liquid phase is transferred to the thin stillage; or the steps (a1)-(d1), thus more liquid phase is transferred to the thin stillage;    (2) producing a feed co-product, involving either the steps (a) to (e); separating the whole stillage into thin stillage and wet cake; de-oiling the thin stillage to form soluble with less oil; and recovering the feed co-product from the wet cake and soluble with less oil; or the steps (a1)-(d1); de-oiling the thin stillage to form soluble with less oil; and recovering the feed co-product from the wet cake and soluble with less oil;    (3) producing a fermentation product, involving liquefying a starch-containing material into dextrins with an alpha-amylase; saccharifying the dextrins using a carbohydrate source generating enzyme to form a sugar; fermenting the sugar in a fermentation medium into a fermentation product using a fermenting organism, where the fermentation medium comprises a GH61 polypeptide.