| Schedule Of Quarterly Financial Data |
| | | | | | | | | | | | | | | | | (in millions, except per unit data) | First Quarter | | Second Quarter | | Third Quarter | | Fourth Quarter | 2015 | | | | | | | | Operating Revenues | $ | 339.2 |
| | $ | 315.6 |
| | $ | 320.0 |
| | $ | 357.0 |
| Operating Income | 162.0 |
| | 109.2 |
| | 142.8 |
| | 136.3 |
| Net Income | 131.2 |
| | 107.8 |
| | 144.6 |
| | 146.6 |
| Predecessor net income prior to IPO on February 11, 2015 | 42.7 |
| | — |
| | — |
| | — |
| Net income attributable to noncontrolling interest in Columbia OpCo subsequent to IPO | 75.2 |
| | 91.5 |
| | 122.6 |
| | 124.2 |
| Net income attributable to limited partners subsequent to IPO | 13.3 |
| | 16.3 |
| | 22.0 |
| | 22.4 |
| Net Income Per Limited Partner Unit (basic and diluted) | | | | | | | | Common Units | 0.13 |
| | 0.17 |
| | 0.22 |
| | 0.22 |
| Subordinated Units | 0.13 |
| | 0.16 |
| | 0.22 |
| | 0.22 |
| 2014 | | | | | | | | Operating Revenues | $ | 345.5 |
| | $ | 343.4 |
| | $ | 317.6 |
| | $ | 340.4 |
| Operating Income | 158.5 |
| | 103.2 |
| | 93.8 |
| | 133.2 |
| Net Income | 92.5 |
| | 59.0 |
| | 53.2 |
| | 64.4 |
|
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