00497nam a2200157Ia 450000100060000000300050000600500170001100800410002801000170006924500680008625000180015426000390017230000260021165000590023771000430029648683BIBL20160527184322.0920302s1991    dcuarf     b f0     eng0d  adoc92000588 00aNatural gas annual 1989 [computer file]bdetailed 1989 summary.  a1.2 MB ASCII.00aWashingtonbDept. of Energyc1991.  a1 diskettec5 1/4 in. 0aGas NaturalzUnited StatesxReservesxDatabases.2LEMB10aUnited StatesbDept. of Energy.2Local