Because the people in the war wouldn't give us oil.
Government owned oil companies in India suffer losses as the prices of petroleum products are administered by the government. Even when the oil prices increase the government is not in a position to rise the prices automatically due to fear of loss of popularity. So the government issued oil bonds to cover the losses or to put it simply the loss was covered by the government without paying a single rupee from its funds. The oil companies can raise loans against the bonds but can they cash the same is a moot question.
If you expect prices to rise when borrowing money it depends on if the interest rate is smaller than the rate of inflation. If the interest rate is smaller than it could be advantageous.
Due to the overconsumption. When the demand increases the price also increases.
inflation
Prices can rise for various reasons. However, they usually go up when demand increases, or if there is a condition that causes a scarcity of resources.
the government
Blush thank boo
A driving factor in the rise is the Gulf oil crisis. Prices are expected to rise at least 7% over the summer.
as polyester resin is a bi-product of oil so if the prices of oil rise then it is definite that the polyster resin price will also rise.
The recent rise in oil prices has been much greater than the rise in the value of the GB pound against the US dollar. Without the change in the exchange rate the rise in oil prices in pounds would have been even greater.
natural inflation
An oil embargo against the United States
prices rise gas goes up oil rises in price
The highest that the crude oil prices ever hit was USD$147. You can read about it and the reasons why the prices went that high here : http://english.aljazeera.net/focus/2008/09/200898133143509358.html
the oil exporting countries of the middle east formed OPEC in 1960 because of the Suez crisis and the oil prices rose as production decreased
Generally prices rise when the is increased demand for a product (oil/petrol for example) or when there is a restriction in the supply (eg houses).
When prices rise, income buys less.