Therefore, it is imperative to define the multiple sources of Proterozoic Paleozoic oil and gas for further petroleum exploration.
First, he could direct the secretary of the interior, Sally Jewell, to issue a Secretarial Order banning all further petroleum leasing until there is a federal energy strategy that takes into account the climate consequences of fossil fuel combustion.
In order to conduct complex research in oil that originated in Mongolia for further application of petroleum not only as fuel but also as raw material for organic synthesis, we need to study the physical and chemical characteristics, individual and group hydrocarbon's composition of main petroleum fractions.
Robert Kelly, president of the Garden State Fuel and Automotive Industry Association, goes one step further, comparing the petroleum industry with Microsoft in its quest to be both supplier and retailer.
A big reason for the thaw in relations is BP's potential role in helping Russia further its global petroleum ambitions.
Bill Loveless: If that isn't there a goal that's been set by the Prime Minister to -- for at a point at which there would be no further sales of petroleum fueled vehicles?
Next, the 95%% ethanol extract was further divided into petroleum ether, ethyl acetate, n-butanol, and water fractions, and the antioxidant activities of each fraction were compared.
The residue was purified by Semi-HPLC (acetonitrile:methanol:water = 65:5:30) to afford the compound 2′ (157 mg, yield 85%), which was further recrystallized from petroleum ether: ethyl acetate = 3 1 to give a colorless rhombic crystal.
The combined extract was concentrated under reduced pressure to give a residue (0.3 kg), which was further partitioned with petroleum ether (PE, boiling point 60 90 °C, 4 L), ethyl acetate (EtOAc, 4 L) and n-BuOH (4 L), successively.
OPEC wants the United States to dip further into its strategic petroleum reserve to help reduce world oil prices, the cartel's president said Wednesday.
Northern Norway is now in the forefront of further developing the Norwegian petroleum industry".
