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UNCONSOLIDATED AFFILIATES (Notes) | 6 Months Ended
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Jun. 30, 2020
Equity Method Investments and Joint Ventures [Abstract] |
UNCONSOLIDATED AFFILIATES | UNCONSOLIDATED AFFILIATES Equity in Net Earnings from Investments and Impairments - The following table sets forth our equity in net earnings (loss) from investments for the periods indicated:
| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
| (Thousands of dollars)
Northern Border Pipeline | $ | 12,871 |  |  | $ | 13,689 |  |  | $ | 34,991 |  |  | $ | 34,491 |
Overland Pass Pipeline | 7,972 |  |  | 15,465 |  |  | 22,083 |  |  | 32,859 |
Roadrunner | 6,809 |  |  | 6,077 |  |  | 13,242 |  |  | 12,415 |
Other | (2,324 | ) |  | (1,113 | ) |  | (361 | ) |  | (2,166 | )
Equity in net earnings from investments | $ | 25,328 |  |  | $ | 34,118 |  |  | $ | 69,955 |  |  | $ | 77,599 |
Impairment of equity investments | $ | — |  |  | $ | — |  |  | $ | (37,730 | ) |  | $ | — |
In the first quarter 2020, we incurred a noncash impairment charge of $30.5 million related to our 10.2% investment in Venice Energy Services Company in our Natural Gas Gathering and Processing segment, which includes $22.3 million related to equity-method goodwill, and a $7.2 million noncash impairment charge related to our 50% investment in Chisholm Pipeline Company in our Natural Gas Liquids segment. Our remaining equity-method goodwill was $16.5 million at June 30, 2020. For additional information on our impairment charges, see Note A. We incurred expenses in transactions with unconsolidated affiliates of $41.8 million and $40.5 million for the three months ended June 30, 2020 and 2019, respectively, and $87.1 million and $82.3 million for the six months ended June 30, 2020 and 2019, respectively, primarily related to Overland Pass Pipeline and Northern Border Pipeline. Accounts payable to our equity-method investees at June 30, 2020, and December 31, 2019, were $9.7 million and $13.5 million, respectively. We have an operating agreement with Roadrunner that provides for reimbursement or payment to us for management services and certain operating costs. Reimbursements and payments from Roadrunner included in operating income in our Consolidated Statements of Income for the three and six months ended June 30, 2020 and 2019, were not material.

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- Definition The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.3A-04) -URI http://asc.fasb.org/extlink&oid=116822174&loc=d3e355119-122828 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI http://asc.fasb.org/topic&trid=2196965 + Details
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