is the largest oil/gas producer and distributor, playing a dominant role in the oil and gas industry in China
oil and gas exploration and production operations around the world
is an independent oil development and production company
is an independent energy company that explores for, develops and produces natural gas, crude oil and natural gas liquids
has exploration assets in Ireland and Montenegro and is currently evaluating other frontier exploration and oil services deals
ncreasing oil and gas reserves through successful oil and gas exploration and acquisitions.
engaged in the exploration, development, acquisition and operation of oil and gas properties
is an independent upstream oil and gas company headquartered in Calgary, Alberta, Canada.
is engaged in oil and gas exploration.