NOVELTY - An engineered microorganism comprising reverse beta -oxidation cycle and capable of producing alcohols, carboxylic acids, and hydrocarbons, is new. The engineered microorganism has (a) expression of beta -oxidation cycle in the absence of fatty acids and presence of non-fatty acid carbon source, (b) functional operation of the beta -oxidation cycle in the reverse/biosynthetic direction, and (c) overexpression of one or more termination enzymes that convert reverse beta -oxidation cycle intermediates to desired alcohol, carboxylic acid, or hydrocarbon.    USE - The engineered microorganism is useful for producing products chosen from alcohols, preferably n-butanol, 4-6C alcohols, 6-10C alcohols, 6-8C alcohols and 6C alcohol, carboxylic acids, preferably beta -ketobutyric acid, beta -hydroxybutyric acid, trans-2-butenoic acid, 4-6C carboxylic acid, 16-18C carboxylic acid and 14-18C carboxylic acid and hydrocarbons, preferably 4-6C alkanes, 14-18C alkanes, 4-6C alkanes, 4-6C alkenes and 14-18C alkenes (all claimed). The alcohols and hydrocarbons are used as fuel and alcohols and carboxylic acids are used as feedstock in industries.    ADVANTAGE - The engineered microorganism produces higher chain alcohols, fatty acid methyl esters and hydrocarbons that are cost-effective and more efficient than ethanol and have reduced hygroscopicity and volatility, higher energy density and thus is more compatible for storage, distribution and usage.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) method of making a product chosen from alcohols or carboxylic acids, involves growing the microorganism under microaerobic (less than 10% oxygen) or anaerobic conditions in nutrient containing broth, preferably glucose minimal medium supplemented with 0-100 mu M iron(II) sulfate, and 0-5 mM calcium pantothenate at 30-40 degrees C for a time sufficient to allow production of product, and obtaining the product; and (3) bacteria, preferably Escherichia comprising fatty acid degradation regulon (fadR) gene, mutant of gene encoding cytosolic transcription factor of E.coli AtoSC two-component system (atoC(c)), aerobic respiration control ( Delta arcA) gene, cyclic AMP receptor protein ( Delta crp) gene, mutant of crp (crpasterisk), alcohol/acetaldehyde dehydrogenase ( Delta adhE) gene, phosphotransacetylase ( Delta pta) gene, fumarate reductase ( Delta frdA) gene, lactate dehydrogenase ( Delta ldhA) gene, methylglyoxal synthase ( Delta mgsA) gene, where Delta is reduced activity.