EX-12 14 ex12pso20174q.htm COMPUTATION OF RATIOS - PSO Exhibit


EXHIBIT 12
 
 
PUBLIC SERVICE COMPANY OF OKLAHOMA
Computation of Ratios of Earnings to Fixed Charges
(in millions except ratio data)
 
 
Years Ended December 31,
 
 
2013
 
2014
 
2015
 
2016
 
2017
EARNINGS
 
 

 
 

 
 

 
 

 
 

Income Before Income Taxes
 
$
163.7

 
$
137.5

 
$
143.8

 
$
154.4

 
$
122.1

Fixed Charges (as below)
 
57.6

 
58.2

 
66.1

 
56.9

 
56.5

Total Earnings
 
$
221.3

 
$
195.7

 
$
209.9

 
$
211.3

 
$
178.6

 
 
 
 
 
 
 
 
 
 
 
FIXED CHARGES
 
 

 
 
 
 
 
 
 
 
Interest Expense
 
$
53.2

 
$
54.6

 
$
58.6

 
$
51.2

 
$
53.4

Credit for Allowance for Borrowed Funds Used During Construction
 
2.2

 
1.8

 
5.0

 
3.4

 
1.1

Estimated Interest Element in Lease Rentals
 
2.2

 
1.8

 
2.5

 
2.3

 
2.0

Total Fixed Charges
 
$
57.6

 
$
58.2

 
$
66.1

 
$
56.9

 
$
56.5

 
 
 
 
 
 
 
 
 
 
 
Ratio of Earnings to Fixed Charges
 
3.83

 
3.36

 
3.17

 
3.71

 
3.16