Kuwonjezera okondedwa
 
Chotsani okondedwa

Natural mpweya mbiri mtengo wokwera February 1990

Mitengo mbiri ya Gasi mu February 1990. mtengo 1 MMBTU (1 miliyoni mayunitsi British matenthedwe = 27,93 Bakuman. meters) wa gasi ndi masiku.

Natural mpweya mtengo tchati kwa Europe February 1990

Natural mpweya mbiri mtengo wokwera February 1990

Price of Gasi mu February 1990

Date Madola Btu Miliyoni
27.02.1990 2.820000
   Brent mtengo mafuta moyo lero
   Mbiri WTI mafuta mtengo mafuta mtengo tchati kuyambira 1983
   Mtengo mkuwa mb
   Aluminium mtengo mb