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Derivative Financial Instruments (Tables)

6 Months Ended

Oct. 31, 2012

Derivative Financial Instruments [Abstract]

	October 31, 2012		April 30, 2012
	Other	Other	Other	Other
	Current	Current	Current	Current
	Assets	Liabilities	Assets	Liabilities
Derivatives designated as hedging instruments:
Commodity contracts	$ 2,913	$ 8,410	$ 6,569	$ 19,510
Derivatives not designated as hedging instruments:
Commodity contracts	$ 13,557	$ 6,634	$ 3,166	$ 3,631
Foreign currency exchange contracts	1,285	455	436	982
Total derivatives not designated as hedging instruments	$ 14,842	$ 7,089	$ 3,602	$ 4,613
Total derivatives instruments	$ 17,755	$ 15,499	$ 10,171	$ 24,123

Commodity contracts gains and losses recognized on derivatives designated as cash flow hedges

	Three Months Ended October 31,		Six Months Ended October 31,
	2012	2011	2012	2011
Losses recognized in other comprehensive income (loss) (effective portion)	$ (13,135)	$ (4,246)	$ (15,345)	$ (10,260)
(Losses) gains reclassified from accumulated other comprehensive loss to cost of products sold (effective portion)	(12,468)	(416)	(19,006)	5,692
Change in accumulated other comprehensive loss	$ (667)	$ (3,830)	$ 3,661	$ (15,952)
Losses recognized in cost of products sold (ineffective portion)	$ (134)	$ (392)	$ (218)	$ (513)

Interest rate contract gains and losses recognized on the derivative designated as a cash flow hedge

	Three Months Ended October 31,		Six Months Ended October 31,
	2012	2011	2012	2011
Losses recognized in other comprehensive income (loss) (effective portion)	$ 0	$ (6,192)	$ 0	$ (6,192)
Losses reclassified from accumulated other comprehensive loss to interest expense (effective portion)	(132)	(18)	(264)	(18)
Change in accumulated other comprehensive loss	$ 132	$ (6,174)	$ 264	$ (6,174)
Losses recognized in interest expense (ineffective portion)	$ 0	$ (19)	$ 0	$ (19)

Net realized and unrealized gains and losses recognized in cost of products sold on derivatives not designated as qualified hedging instruments

	Three Months Ended October 31,		Six Months Ended October 31,
	2012	2011	2012	2011
Unrealized (losses) gains on commodity contracts	$ (11,234)	$ (10,877)	$ 8,388	$ (6,476)
Unrealized gains on foreign currency exchange contracts	889	632	991	427
Total unrealized (losses) gains recognized in cost of products sold	$ (10,345)	$ (10,245)	$ 9,379	$ (6,049)
Realized gains (losses) on commodity contracts	$ 7,267	$ 12,984	$ (574)	$ 22,280
Realized (losses) gains on foreign currency exchange contracts	(307)	938	(204)	1,228
Total realized gains (losses) recognized in cost of products sold	$ 6,960	$ 13,922	$ (778)	$ 23,508
Total (losses) gains recognized in cost of products sold	$ (3,385)	$ 3,677	$ 8,601	$ 17,459

Outstanding derivative contracts

	October 31, 2012	April 30, 2012
Commodity contracts	$ 798,466	$ 983,381
Foreign currency exchange contracts	147,470	94,424

- Definition

Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

+ References+ Details

- Definition

Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.

+ References+ Details