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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)

6 Months Ended

Jun. 30, 2021

Accumulated Other Comprehensive Loss

The following table sets forth the balance in accumulated other comprehensive loss for the period indicated:

						Risk- Management Assets/Liabilities (a)						Retirement and Other Postretirement Benefit Plan Obligations (a) (b)						Risk- Management Assets/Liabilities of Unconsolidated Affiliates (a)						Accumulated Other Comprehensive Loss (a)
						(Thousands of dollars)
January 1, 2021						$	(377,446)					$	(157,635)					$	(16,368)					$	(551,449)
Other comprehensive income (loss) before reclassifications						(140,056)						(142)						3,651						(136,547)
Amounts reclassified to net income (c)						76,591						9,027						935						86,553
Other comprehensive income (loss)						(63,465)						8,885						4,586						(49,994)
June 30, 2021						$	(440,911)					$	(148,750)					$	(11,782)					$	(601,443)

(a) - All amounts are presented net of tax.

(b) - Includes amounts related to supplemental executive retirement plan.

(c) - See Note C for details of amounts reclassified to net income for risk-management assets/liabilities and Note H for retirement and other postretirement benefit plan obligations.

Schedule of Accumulated Other Comprehensive Loss for Risk-Management Assets/Liabilities [Table Text Block]

The following table sets forth information about the balance of accumulated other comprehensive loss at June 30, 2021, representing unrealized losses related to risk-management assets and liabilities:

						Risk- Management Assets/Liabilities (a)
						(Thousands of dollars)
Commodity derivative instruments expected to be realized within the next 30 months (b)						$	(149,749)
Settled interest-rate swaps to be recognized over the life of the long-term, fixed-rate debt (c)						(178,441)
Interest-rate swaps with future settlement dates expected to be amortized over the life of long-term debt						(112,721)
Accumulated other comprehensive loss at June 30, 2021						$	(440,911)

(a) - All amounts are presented net of tax.

(b) - Based on commodity prices on June 30, 2021, we expect $142.7 million in net losses, net of tax, over the next 12 months and $7.0 million in net losses, net of tax, thereafter.

(c) - We expect net losses of $30.3 million, net of tax, will be reclassified into earnings during the next 12 months.

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[Table Text Block] for Tabular disclosure of the risk-management assets/liabilities component of other comprehensive income (loss).

+ References

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- Definition

Tabular disclosure of the components of accumulated other comprehensive income (loss).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900

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