GEOLOGIC AND GEOCHEMICAL CONTROLS ON THE DISTRIBUTION OF HYDROGEN SULFIDE IN NATURAL GAS.ORR WL.1975; GEOL. SOC. AMER., ABSTR. PROGRAMS; U.S.A.; 1975, VOL. 7, NUM. 0007, P. 1220 A 1221Miscellaneous

CHANGES IN SULFUR CONTENT AND ISOTOPIC RATIOS OF SULFUR DURING PETROLEUM MATURATION, STUDY OF BIG HORN BASIN PALEOZOIC OILS.ORR WL.1974; AMER. ASS. PETROLEUM GEOLOGISTS BULL.; USA; 1974, VOL. 58, NUM. 0011-PART01, P. 2295 A 2318Serial Issue

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NUCLEAR TECHNIQUES IN OIL AND GAS EXPLORATION AND PRODUCTION.CALDWELL RL; MILLS WR JR; ORR WL et al.1977; IN: NUCL. TECH., MINER. RESOUR. 1977. PROC. INT. SYMP. NUCL. TECH. EXPLOR., EXTR. PROCESS. MINER. RESOUR.; VIENNA; 1977; VIENNA; I.A.E.A.; DA. 1977; PP. 3-42; BIBL. 3 P. 1/2; 18 ILL.Conference Paper