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Gain on Disposals | 12 Months Ended
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Dec. 31, 2021
Gain (Loss) on Disposition of Assets [Abstract] |
Gain on Disposals | Note 6 - Gain on Disposals We recognized the following losses and gains on disposal for the year ended December 31, 2021:
| Year Ended December 31, 2021
(in $ millions) | Net proceeds | Book value on disposal | (Loss)/gain on disposal
Balder (1) | 4.4 |  | 4.5 |  | (0.1) |
Rig Related Equipment | 1.3 |  | — |  | 1.3 |
Total | 5.7 | 4.5 | 1.2
(1) Of the net proceeds received from the sale of the "Balder", $3.0 million was received during the year ended December 31, 2020. We recognized the following gains and losses on disposal for the year ended December 31, 2020:
| Year ended December 31, 2020
(In $ millions) | Net proceeds | Book value on disposal | Gain/(loss) on disposal
B152 | 7.9 |  | 1.4 |  | 6.5 |
Dhabi II | 7.9 |  | 1.6 |  | 6.3 |
Atla | 10.0 |  | 5.0 |  | 5.0 |
MSS1 | 2.2 |  | 2.2 |  | — |
Eir | 3.0 |  | 3.0 |  | — |
B391 | 0.4 |  | 0.8 |  | (0.4) |
Rig Related Equipment | 3.3 |  | 1.7 |  | 1.6 |
Total | 34.7 | 15.7 | 19.0
We recognized the following gains on disposal for the year ended December 31, 2019:
| Year ended December 31, 2019
(In $ millions) | Net proceeds | Book value on disposal | Gain on disposal
Baug | 3.0 |  | — |  | 3.0 |
C20051 | 3.0 |  | 2.1 |  | 0.9 |
Rig Related Equipment | 2.5 |  | — |  | 2.5 |
Total | 8.5 |  | 2.1 |  | 6.4 |

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