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ATMOS ENERGY CORP., MID-TEX DIVISION
<br />RATE BASE ADJUSTMENTS
<br />TEST YEAR ENDING DECEMBER 31, 2017
<br />AMORTIZATION OF REGULATORY LIABILITY
<br />Beginning of Year End of Year
<br />Rate Base Rate Base
<br />Line
<br />Year Ended
<br />Adjustment
<br />Annual
<br />Adjustment
<br />No.
<br />Dec. 31
<br />Amount
<br />Amortization (1
<br />Amount
<br />(a)
<br />(b)
<br />(c)
<br />(d)
<br />1
<br />2017
<br />$
<br />289,813,479
<br />2
<br />2018
<br />$ 289,813,479
<br />$ 12,075,562
<br />277,737,918
<br />3
<br />2019
<br />277,737,918
<br />12,075,562
<br />265,662,356
<br />4
<br />2020
<br />265,662,356
<br />12,075,562
<br />253,586,795
<br />5
<br />2021
<br />253,586,795
<br />12,075,562
<br />241,511,233
<br />6
<br />2022
<br />241,511,233
<br />12,075,562
<br />229,435,671
<br />7
<br />2023
<br />229,435,671
<br />12,075,562
<br />217,360,110
<br />8
<br />2024
<br />217,360,110
<br />12,075,562
<br />205,284,548
<br />9
<br />2025
<br />205,284,548
<br />12,075,562
<br />193,208,986
<br />10
<br />2026
<br />193,208,986
<br />12,075,562
<br />181,133,425
<br />11
<br />2027
<br />181,133,425
<br />12,075,562
<br />169,057,863
<br />12
<br />2028
<br />169,057,863
<br />12,075,562
<br />156,982,301
<br />13
<br />2029
<br />156,982,301
<br />12,075,562
<br />144,906,740
<br />14
<br />2030
<br />144,906,740
<br />12,075,562
<br />132,831,178
<br />15
<br />2031
<br />132,831,178
<br />12,075,562
<br />120,755,616
<br />16
<br />2032
<br />120,755,616
<br />12,075,562
<br />108,680,055
<br />17
<br />2033
<br />108,680,055
<br />12,075,562
<br />96,604,493
<br />18
<br />2034
<br />96,604,493
<br />12,075,562
<br />84,528,932
<br />19
<br />2035
<br />84,528,932
<br />12,075,562
<br />72,453,370
<br />20
<br />2036
<br />72,453,370
<br />12,075,562
<br />60,377,808
<br />21
<br />2037
<br />60,377,808
<br />12,075,562
<br />48,302,247
<br />22
<br />2038
<br />48,302,247
<br />12,075,562
<br />36,226,685
<br />23
<br />2039
<br />36,226,685
<br />12,075,562
<br />24,151,123
<br />24
<br />2040
<br />24,151,123
<br />12,075, 562
<br />12, 075, 562
<br />25
<br />2041
<br />12,075,562
<br />12,075,562
<br />(0)
<br />26
<br />27
<br />Note:
<br />28
<br />1. The annual amortization
<br />of a 24 year recovery period is has -ed on the
<br />29
<br />Reverse South
<br />Georgia Method.
<br />Balance as of
<br />December 31,
<br />2017
<br />(e)
<br />$ 289,813,479
<br />
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