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Stock-Based Compensation
 6 Months Ended
Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Stock-Based Compensation

The following table summarizes the Company's pre-tax compensation expense and related income tax benefit during the three and six months ended June 30, 2013 and 2012 related to the Company's performance units and restricted stock.
 
Three Months Ended
Six Months Ended
 
June 30,
June 30,
(In millions)
2013
2012
2013
2012
Performance units
 
 
 
 
Total shareholder return
$
1.9

$
2.0

$
3.9

$
3.8

Earnings per share
0.7

0.6

1.3

1.3

Total performance units
2.6

2.6

5.2

5.1

Restricted stock
0.1

0.2

0.2

0.4

Total compensation expense
2.7

2.8

5.4

5.5

Less: Amount paid by unconsolidated affiliates
0.6

—

0.6

—

Net compensation expense
$
2.1

$
2.8

$
4.8

$
5.5

Income tax benefit
$
1.0

$
1.1

$
2.1

$
2.2



The Company has issued new shares to satisfy stock option exercises, restricted stock grants and payouts of earned performance units. During the three and six months ended June 30, 2013, there were 33,000 shares and 549,520 shares, respectively, of new common stock issued pursuant to the Company's stock incentive plans related to exercised stock options, restricted stock grants (net of forfeitures) and payouts of earned performance units. During the six months ended June 30, 2013, there were 125,264 of treasury stock shares issued. During the three and six months ended June 30, 2013, there were 5,810 shares and 6,474 shares of restricted stock, respectively, returned to the Company to satisfy tax liabilities. The Company received $1.2 million and $1.4 million during the three and six months ended June 30, 2013 related to exercised stock options. The Company did not realize an income tax benefit for the tax deductions from the exercised stock options during the three and six months ended June 30, 2013 due to the Company being in a tax net operating loss position in 2013.

As a result of the formation of Enable Midstream Partners on May 1, 2013, 50 percent of OGE Holdings' 2013 performance unit grants that were previously based on earnings before interest, taxes, depreciation and amortization were converted to stock-based compensation. The performance unit grants converted totaled 91,390, which is comprised of 45,596 total shareholder return performance units with a $25.89 grant date fair value and 45,794 earnings per share performance units with a $26.73 grant date fair value. The amount of these performance units were adjusted for the effects of the stock split.