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Investments in Unconsolidated Entities (Tables) | 12 Months Ended
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Dec. 31, 2020
Equity Method Investments and Joint Ventures [Abstract] |
Investments in and summarized financial information for entities accounted for under the equity method of accounting | Our investments in unconsolidated entities consisted of the following (in millions, except percentage data):
|  |  |  | Ownership Interest at December 31, 2020 |  | Investment Balance December 31,
Entity (1) |  | Type of Operation |  |  | 2020 |  | 2019
BridgeTex Pipeline Company, LLC (“BridgeTex”) |  | Crude Oil Pipeline |  | 20% |  | $ | 421 |  |  | $ | 431 |
Cactus II Pipeline LLC (“Cactus II”) |  | Crude Oil Pipeline |  | 65% |  | 752 |  |  | 738 |
Capline Pipeline Company LLC |  | Crude Oil Pipeline (2) |  | 54% |  | 514 |  |  | 484 |
Diamond Pipeline LLC (“Diamond”) |  | Crude Oil Pipeline |  | 50% |  | 480 |  |  | 476 |
Eagle Ford Pipeline LLC (“Eagle Ford Pipeline”) |  | Crude Oil Pipeline |  | 50% |  | 372 |  |  | 382 |
Eagle Ford Terminals Corpus Christi LLC (“Eagle Ford Terminals”) |  | Crude Oil Terminal and Dock |  | 50% |  | 122 |  |  | 126 |
Red Oak Pipeline LLC (“Red Oak”) |  | Crude Oil Pipeline |  | 50% |  | 35 |  |  | 20 |
Saddlehorn |  | Crude Oil Pipeline |  | 30% |  | 208 |  |  | 234 |
STACK Pipeline LLC (“STACK”) |  | Crude Oil Pipeline |  | 50% |  | 22 |  |  | 117 |
White Cliffs Pipeline, LLC |  | Crude Oil Pipeline |  | 36% |  | 192 |  |  | 196 |
Wink to Webster Pipeline LLC (“W2W Pipeline”) |  | Crude Oil Pipeline |  | 16% |  | 330 |  |  | 136 |
Other investments |  |  |  |  |  | 316 |  |  | 343 |
Total Investments in Unconsolidated Entities |  |  |  |  |  | $ | 3,764 |  |  | $ | 3,683 |
(1)Except for Eagle Ford Terminals, which is reported in our Facilities segment, the financial results from the entities are reported in our Transportation segment. (2)The Capline pipeline was taken out of service pending the reversal of the pipeline system. Combined summarized financial information for all of our unconsolidated entities is shown in the tables below (in millions). None of our unconsolidated entities have noncontrolling interests.
| December 31,
| 2020 |  | 2019
Current assets | $ | 580 |  |  | $ | 652 |
Noncurrent assets | $ | 8,769 |  |  | $ | 7,264 |
Current liabilities | $ | 343 |  |  | $ | 298 |
Noncurrent liabilities | $ | 10 |  |  | $ | 26 |
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Revenues | $ | 1,360 |  |  | $ | 1,469 |  |  | $ | 1,235 |
Operating income | $ | 828 |  |  | $ | 994 |  |  | $ | 824 |
Net income | $ | 826 |  |  | $ | 995 |  |  | $ | 824 |

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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