BP 2007 Annual Report Download - page 146

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144
34 Derivative financial instruments continued
Derivatives held for trading
The group maintains active trading positions in a variety of derivatives. The contracts may be entered into for risk management purposes, to satisfy
supply requirements or for entrepreneurial trading. Certain contracts are classified as held for trading, regardless of their original business objective,
and are recognized at fair value with changes in fair value recognized in the income statement. Trading activities are undertaken by using a range of
contract types in combination to create incremental gains by arbitraging prices between markets, locations and time periods. The net of these
exposures is monitored using market value-at-risk techniques as described in Note 28.
The following tables show further information on the fair value of derivatives and other financial instruments held for trading purposes. The fair
values at the year end are not materially unrepresentative of the position throughout the year.
Changes during the year in the net fair value of derivatives held for trading purposes were as follows.
$ million
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Oil Natural gas Power
Currency price price price Other
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Fair value of contracts at 1 January 2007 105 296 855 42 113
Contracts realized or settled in the year (109) (289) (602) (68) (83)
Fair value of options at inception 28 168 36
Fair value of other new contracts entered into during the year ––1–
Changes in fair values relating to price (167) (253) (58) (20)
Exchange adjustments 1 2 (9)
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Fair value of contracts at 31 December 2007 (170) (218) 366 (19) 30
$ million
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Oil Natural gas Power
Currency price price price Other
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Fair value of contracts at 1 January 2006 23 (61) 529 183
Contracts realized or settled in the year (16) 85 (327) (37) (106)
Fair value of options at inception 36 247 (70) 45
Fair value of other new contracts entered into during the year ––21
Change in fair value due to changes in valuation techniques or key assumptions 1––
Changes in fair values relating to price 98 231 421 (22) 174
Exchange adjustments 4 (17) (13)
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Fair value of contracts at 31 December 2006 105 296 855 42 113
If at inception of a contract the valuation cannot be supported by observable market data, any gain determined by the valuation methodology is not
recognized in the income statement but is deferred on the balance sheet and is commonly known as ‘day-one profit’. This deferred gain is recognized
in the income statement over the life of the contract until substantially all of the remaining contract term can be valued using observable market data
at which point any remaining deferred gain is recognized in income. Changes in valuation from this initial valuation are recognized immediately through
income.