TECHNOLOGY FOCUS - BIOLOGY - Preferred Components: The bioconversion agent is facultative anaerobes, acetogens, methanogens and/or fungi.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The hydroxide is a hydroxide of sodium, potassium, aluminum, calcium, magnesium, ammonium, copper, or iron. The chemicals are hydrogen peroxide, sodium hydroxide or ethyl acetate.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The contacting step is carried out at 0-300 degrees C. The method further comprises treating the portion of the carbonaceous materials with one or more bioconversion agents during or after the contacting with the member; and adding nutrients, vitamins, minerals, and metal catalysts before or during the contacting. The contacting step further includes: contacting with a solvent comprising phenanthrene, chrysene, fluoranthene and pyrene, a nitrogenous ring aromatic, anthracene and/or fluorene; and contacting with a solvent comprising phosphorous acid, phosphoric acid, a phosphite ester, triethylamine, quinuclidine pyridine, acetonitrile, diethylether, acetone, dimethyl acetamide, dimethyl sulfoxide, tetrahydrothiophene, trimethylphosphine, nitric acid, EDTA, sodium salicylate, triethanolamine, 1,10-o-phenanthroline, sodium acetate, ammonium tartrate, ammonium oxalate, ammonium citrate tribasic, 2,3-dihydroxylbenzoic acid, 2,4-dihydroxylbenzoic acid, 3,4-dihydroxylbenzoic acid, 3,5-dihydroxylbenzoic acid and/or tetrahydrofuran. In the method of solubilizing a carbonaceous material in a subterranean formation, the chemicals are introduced into the formation by one or more conduits or wellbores, extending from the surface to a carbonaceous subterranean deposit; the chemicals are injected sequentially, each injection being separated by a volume of water; the chemicals are injected in the order peroxide, hydroxide and ester or salt of a 1-4C carboxylic acid or benzoic acid. The method of solubilizing a carbonaceous material in a subterranean formation further comprises recovering the solubilized carbonaceous material; contacting the recovered solubilized carbonaceous material with an anaerobic fermentation system for the bioconversion of the solubilized carbonaceous material into a gas; recovering the solubilized carbonaceous material; and contacting the recovered solubilized carbonaceous material with an anaerobic fermentation system for the bioconversion of the solubilized carbonaceous material into a gas. The conduits or wellbores are arranged in an array of patterns or configurations to displace injected chemicals into the subterranean formation and recover solubilized carbonaceous material. The solubilized carbonaceous material is introduced into an anaerobic fermentation system or systems of varying configuration comprising one-stage or two-stage fermentation systems. The solubilization chemicals are introduced into the subterranean formation at 10-250 degrees C. The solubilizing chemicals are introduced into the subterranean formation under a pressure of 0-5000 psig per foot of depth from the surface to the depth of the subterranean formation. The subterranean formation is sonicated before or during introduction of the chemicals. The contacting step occurs in situ or ex situ. Preferred Components: The solubilization chemical is an ester of acetic acid comprising methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, n-butyl acetate, isobutyl acetate, amyl acetate, isoamyl acetate, hexyl acetate, heptyl acetate, octyl acetate, nonanyl acetate, decyl acetate, undecyl acetate, lauryl acetate, tridecyl acetate, myristyl acetate, pentadecyl acetate, cetyl acetate, heptadecyl acetate, stearyl acetate, behenyl acetate, hexacosyl acetate, triacontyl acetate, benzyl acetate, bornyl acetate, isobornyl acetate or cyclohexyl acetate. The solubilization chemical is the acetate.