XML 32 R22.htm IDEA: XBRL DOCUMENT v3.8.0.1
Related Party Transactions (Tables)
 3 Months Ended
Mar. 31, 2018
Related Party Transaction [Line Items]  
Schedule of Related Party Transactions [Table Text Block]
The following table summarizes related party transactions between OG&E and Enable during the three months ended March 31, 2018 and 2017.
 
Three Months Ended
 
March 31,
(In millions)
2018
2017
Operating revenues:
 
 
Electricity to power electric compression assets
$
4.0

$
2.2

Cost of sales:
 
 
Natural gas transportation services
$
8.8

$
8.8

Natural gas purchases (sales)
$
0.3

$
(0.4
)