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Unaudited Quarterly Financial Information
 12 Months Ended
Dec. 31, 2011
Unaudited Quarterly Financial Information [Abstract]  
Unaudited Quarterly Financial Information

17. UNAUDITED QUARTERLY FINANCIAL INFORMATION

 

In our opinion, the unaudited quarterly information reflects all normal and recurring accruals and adjustments necessary for a fair presentation of our net income for interim periods. Quarterly results are not necessarily indicative of a full year's operations because of various factors. Our unaudited quarterly financial information is as follows:

    2011 Quarterly Periods Ended
    March 31 June 30 September 30 December 31 
    (in millions - except per share amounts) 
Total Revenues$ 3,730 $ 3,609 $ 4,333 $ 3,444 
Operating Income  832   717   890(a)  343(b)
Income Before Extraordinary Items  355   353   657(a) (c)  211(b) (c)
Extraordinary Items, Net of Tax  -   -   273(c)  100(c)
Net Income  355   353   930(a) (c)  311(b) (c)
             
Amounts Attributable to AEP Common Shareholders:            
  Income Before Extraordinary Items  353   352   655(a) (c)  208(b) (c)
  Extraordinary Items, Net of Tax  -   -   273(c)  100(c)
  Net Income  353   352   928(a) (c)  308(b) (c)
             
Basic Earnings per Share Attributable to AEP            
 Common Shareholders:            
  Earnings per Share Before Extraordinary Items  0.73   0.73   1.35   0.43 
  Extraordinary Items per Share  -   -   0.57   0.20 
  Earnings per Share (f)  0.73   0.73   1.92   0.63 
             
Diluted Earnings per Share Attributable to AEP            
 Common Shareholders:            
  Earnings per Share Before Extraordinary Items  0.73   0.73   1.35   0.43 
  Extraordinary Items per Share  -   -   0.57   0.20 
  Earnings per Share (f)  0.73   0.73   1.92   0.63 

    2010 Quarterly Periods Ended
    March 31 June 30 September 30 December 31 
    (in millions - except per share amounts) 
Total Revenues$ 3,569 $ 3,360 $ 4,064 $ 3,434 
Operating Income  758   394(d)  1,025   486(e)
Net Income  346   137(d)  557   178(e)
             
Amounts Attributable to AEP Common Shareholders:            
  Net Income  344   136(d)  555   176(e)
             
Basic Earnings per Share Attributable to AEP            
 Common Shareholders:            
  Earnings per Share (f)  0.72   0.28   1.16   0.37 
             
Diluted Earnings per Share Attributable to AEP            
 Common Shareholders:            
  Earnings per Share (f)  0.72   0.28   1.16   0.37 

(a)       Includes pretax write-offs for plant impairments (see Note 6) and a provision for refund of POLR charges in Ohio (see Note 3).

(b)       Includes a refund of POLR charges in Ohio (see Note 3) and OPCo adjustments for fuel disallowances, the 2010 SEET and the obligation to contribute to Partnership with Ohio and Ohio Growth Fund. Also includes a write-off for SWEPCo's Turk Plant (see Note 6).

(c)       See "TCC Texas Restructuring" section of Note 2 and "Texas Restructuring" section of Note 3 for discussion of gains recorded in the third and fourth quarters of 2011.

(d)       See Note 16 for discussion of expenses related to cost reduction initiatives in 2010.

(e)        Includes a $43 million refund provision for the 2009 SEET in addition to various other provisions for certain regulatory and legal matters.

(f)       Quarterly Earnings per Share amounts are meant to be stand-alone calculations and are not always additive to full-year amount due to rounding.
Appalachian Power Co [Member]
  
Unaudited Quarterly Financial Information [Abstract]  
Unaudited Quarterly Financial Information

17. UNAUDITED QUARTERLY FINANCIAL INFORMATION

 

In management's opinion, the unaudited quarterly information reflects all normal and recurring accruals and adjustments necessary for a fair presentation of the results of operations for interim periods. Quarterly results are not necessarily indicative of a full year's operations because of various factors. The unaudited quarterly financial information for each Registrant Subsidiary is as follows:

Quarterly Periods Ended:APCo I&M OPCo PSO SWEPCo 
    (in thousands) 
March 31, 2011               
Total Revenues$ 831,820 $ 560,492 $ 1,394,190 $ 288,003 $ 362,955 
Operating Income  116,061(a)  95,994   299,396   38,881   54,528 
Net Income  38,980(a)  45,427   165,970   15,389   29,827 
                
June 30, 2011               
Total Revenues$ 751,445 $ 521,478 $ 1,285,558 $ 328,588 $ 399,534 
Operating Income  88,567   64,351   261,534   64,185   80,054 
Net Income  31,627   31,386   142,194   31,560   51,071 
                
September 30, 2011               
Total Revenues$ 858,336 $ 611,232 $ 1,540,231 $ 457,586 $ 534,982 
Operating Income  122,716   100,352   210,453(b)  103,006   128,406 
Net Income  52,804   51,702   128,339(b)  57,349   87,795 
                
December 31, 2011               
Total Revenues$ 763,624 $ 521,568 $ 1,211,132 $ 289,211 $ 356,355 
Operating Income (Loss)  102,236(c)  20,959   63,321(d)  34,939   (12,731)(e)
Net Income (Loss)  39,347(c)  21,159   28,490(d)  20,330   (3,567)(e)

Quarterly Periods Ended:APCo I&M OPCo PSO SWEPCo 
    (in thousands) 
March 31, 2010               
Total Revenues$ 926,623 $ 553,056 $ 1,335,776 $ 237,755 $ 342,804 
Operating Income  157,938   87,870   279,744   22,622   43,468 
Net Income  70,282   45,058   143,553   4,139   31,083 
                
June 30, 2010               
Total Revenues$ 703,274 $ 509,915 $ 1,220,236 $ 327,686 $ 361,467 
Operating Income (f)  9,033(g)  42,140   186,773   39,265   43,518 
Net Income (Loss) (f)  (19,619)(g)  14,602   89,664   15,489   26,705 
                
September 30, 2010               
Total Revenues$ 840,622 $ 608,250 $ 1,474,401 $ 426,569 $ 480,982 
Operating Income  112,060   115,904   376,907   104,654   128,428 
Net Income  50,071   62,300   207,922   55,432   81,685 
                
December 31, 2010               
Total Revenues$ 804,584 $ 524,506 $ 1,224,703 $ 281,652 $ 338,281 
Operating Income  101,992   29,001(h)  201,186(i)  15,451   33,383 
Net Income (Loss)  35,934   4,131(h)  100,477(i)  (2,273)   7,211 

(a)       Includes a $41 million increase due to the pretax write-off of a portion of the Mountaineer Carbon Capture and Storage Product Validation Facility as denied for recovery by the WVPSC. This increase was partially offset by the $32 million decrease due to the deferral of 2010 costs related to storms and our cost reduction initiatives as allowed by the WVPSC.

(b)       Includes a $48 million pretax write-off related to Sporn Unit 5 shutdown (see Note 6), a $42 million pretax write-off related to the FGD project at Muskingum River Unit 5 (see Note 6) and a $43 million provision for refund of POLR charges (see Note 3).

(c)       This increase was partially offset by a $31 million pretax write-off related to the disallowance of certain Virginia environmental costs incurred in 2009 and 2010 as a result of APCo's November 2011 Virginia SCC order. Includes a $27 million increase due to a favorable Asset Retirement Obligation adjustment related to the early closure and previous write-off of the Mountaineer Carbon Capture and Storage Product Validation Facility.

(d)       Includes provisions related to the FAC, the 2010 SEET and the obligation to contribute to Partnership with Ohio and Ohio Growth Fund.

(e)       Includes a $49 million pretax write-off related to SWEPCo's Texas jurisdictional portion of the Turk Plant (see Note 6) as a result of the November 2011 Texas Court of Appeals decision upholding the Texas capital cost cap.

(f)       See Note 16 for discussion of expenses related to cost reduction initiatives in 2010.

(g)       Includes a $54 million pretax write-off of APCo's Virginia share of the Mountaineer Carbon Capture and Storage Product Validation Facility.

(h)       Includes provisions for certain regulatory and legal matters.

(i)       Includes a $43 million refund provision for the 2009 SEET.
Indiana Michigan Power Co [Member]
  
Unaudited Quarterly Financial Information [Abstract]  
Unaudited Quarterly Financial Information

17. UNAUDITED QUARTERLY FINANCIAL INFORMATION

 

In management's opinion, the unaudited quarterly information reflects all normal and recurring accruals and adjustments necessary for a fair presentation of the results of operations for interim periods. Quarterly results are not necessarily indicative of a full year's operations because of various factors. The unaudited quarterly financial information for each Registrant Subsidiary is as follows:

Quarterly Periods Ended:APCo I&M OPCo PSO SWEPCo 
    (in thousands) 
March 31, 2011               
Total Revenues$ 831,820 $ 560,492 $ 1,394,190 $ 288,003 $ 362,955 
Operating Income  116,061(a)  95,994   299,396   38,881   54,528 
Net Income  38,980(a)  45,427   165,970   15,389   29,827 
                
June 30, 2011               
Total Revenues$ 751,445 $ 521,478 $ 1,285,558 $ 328,588 $ 399,534 
Operating Income  88,567   64,351   261,534   64,185   80,054 
Net Income  31,627   31,386   142,194   31,560   51,071 
                
September 30, 2011               
Total Revenues$ 858,336 $ 611,232 $ 1,540,231 $ 457,586 $ 534,982 
Operating Income  122,716   100,352   210,453(b)  103,006   128,406 
Net Income  52,804   51,702   128,339(b)  57,349   87,795 
                
December 31, 2011               
Total Revenues$ 763,624 $ 521,568 $ 1,211,132 $ 289,211 $ 356,355 
Operating Income (Loss)  102,236(c)  20,959   63,321(d)  34,939   (12,731)(e)
Net Income (Loss)  39,347(c)  21,159   28,490(d)  20,330   (3,567)(e)

Quarterly Periods Ended:APCo I&M OPCo PSO SWEPCo 
    (in thousands) 
March 31, 2010               
Total Revenues$ 926,623 $ 553,056 $ 1,335,776 $ 237,755 $ 342,804 
Operating Income  157,938   87,870   279,744   22,622   43,468 
Net Income  70,282   45,058   143,553   4,139   31,083 
                
June 30, 2010               
Total Revenues$ 703,274 $ 509,915 $ 1,220,236 $ 327,686 $ 361,467 
Operating Income (f)  9,033(g)  42,140   186,773   39,265   43,518 
Net Income (Loss) (f)  (19,619)(g)  14,602   89,664   15,489   26,705 
                
September 30, 2010               
Total Revenues$ 840,622 $ 608,250 $ 1,474,401 $ 426,569 $ 480,982 
Operating Income  112,060   115,904   376,907   104,654   128,428 
Net Income  50,071   62,300   207,922   55,432   81,685 
                
December 31, 2010               
Total Revenues$ 804,584 $ 524,506 $ 1,224,703 $ 281,652 $ 338,281 
Operating Income  101,992   29,001(h)  201,186(i)  15,451   33,383 
Net Income (Loss)  35,934   4,131(h)  100,477(i)  (2,273)   7,211 

(a)       Includes a $41 million increase due to the pretax write-off of a portion of the Mountaineer Carbon Capture and Storage Product Validation Facility as denied for recovery by the WVPSC. This increase was partially offset by the $32 million decrease due to the deferral of 2010 costs related to storms and our cost reduction initiatives as allowed by the WVPSC.

(b)       Includes a $48 million pretax write-off related to Sporn Unit 5 shutdown (see Note 6), a $42 million pretax write-off related to the FGD project at Muskingum River Unit 5 (see Note 6) and a $43 million provision for refund of POLR charges (see Note 3).

(c)       This increase was partially offset by a $31 million pretax write-off related to the disallowance of certain Virginia environmental costs incurred in 2009 and 2010 as a result of APCo's November 2011 Virginia SCC order. Includes a $27 million increase due to a favorable Asset Retirement Obligation adjustment related to the early closure and previous write-off of the Mountaineer Carbon Capture and Storage Product Validation Facility.

(d)       Includes provisions related to the FAC, the 2010 SEET and the obligation to contribute to Partnership with Ohio and Ohio Growth Fund.

(e)       Includes a $49 million pretax write-off related to SWEPCo's Texas jurisdictional portion of the Turk Plant (see Note 6) as a result of the November 2011 Texas Court of Appeals decision upholding the Texas capital cost cap.

(f)       See Note 16 for discussion of expenses related to cost reduction initiatives in 2010.

(g)       Includes a $54 million pretax write-off of APCo's Virginia share of the Mountaineer Carbon Capture and Storage Product Validation Facility.

(h)       Includes provisions for certain regulatory and legal matters.

(i)       Includes a $43 million refund provision for the 2009 SEET.
Ohio Power Co [Member]
  
Unaudited Quarterly Financial Information [Abstract]  
Unaudited Quarterly Financial Information

17. UNAUDITED QUARTERLY FINANCIAL INFORMATION

 

In management's opinion, the unaudited quarterly information reflects all normal and recurring accruals and adjustments necessary for a fair presentation of the results of operations for interim periods. Quarterly results are not necessarily indicative of a full year's operations because of various factors. The unaudited quarterly financial information for each Registrant Subsidiary is as follows:

Quarterly Periods Ended:APCo I&M OPCo PSO SWEPCo 
    (in thousands) 
March 31, 2011               
Total Revenues$ 831,820 $ 560,492 $ 1,394,190 $ 288,003 $ 362,955 
Operating Income  116,061(a)  95,994   299,396   38,881   54,528 
Net Income  38,980(a)  45,427   165,970   15,389   29,827 
                
June 30, 2011               
Total Revenues$ 751,445 $ 521,478 $ 1,285,558 $ 328,588 $ 399,534 
Operating Income  88,567   64,351   261,534   64,185   80,054 
Net Income  31,627   31,386   142,194   31,560   51,071 
                
September 30, 2011               
Total Revenues$ 858,336 $ 611,232 $ 1,540,231 $ 457,586 $ 534,982 
Operating Income  122,716   100,352   210,453(b)  103,006   128,406 
Net Income  52,804   51,702   128,339(b)  57,349   87,795 
                
December 31, 2011               
Total Revenues$ 763,624 $ 521,568 $ 1,211,132 $ 289,211 $ 356,355 
Operating Income (Loss)  102,236(c)  20,959   63,321(d)  34,939   (12,731)(e)
Net Income (Loss)  39,347(c)  21,159   28,490(d)  20,330   (3,567)(e)

Quarterly Periods Ended:APCo I&M OPCo PSO SWEPCo 
    (in thousands) 
March 31, 2010               
Total Revenues$ 926,623 $ 553,056 $ 1,335,776 $ 237,755 $ 342,804 
Operating Income  157,938   87,870   279,744   22,622   43,468 
Net Income  70,282   45,058   143,553   4,139   31,083 
                
June 30, 2010               
Total Revenues$ 703,274 $ 509,915 $ 1,220,236 $ 327,686 $ 361,467 
Operating Income (f)  9,033(g)  42,140   186,773   39,265   43,518 
Net Income (Loss) (f)  (19,619)(g)  14,602   89,664   15,489   26,705 
                
September 30, 2010               
Total Revenues$ 840,622 $ 608,250 $ 1,474,401 $ 426,569 $ 480,982 
Operating Income  112,060   115,904   376,907   104,654   128,428 
Net Income  50,071   62,300   207,922   55,432   81,685 
                
December 31, 2010               
Total Revenues$ 804,584 $ 524,506 $ 1,224,703 $ 281,652 $ 338,281 
Operating Income  101,992   29,001(h)  201,186(i)  15,451   33,383 
Net Income (Loss)  35,934   4,131(h)  100,477(i)  (2,273)   7,211 

(a)       Includes a $41 million increase due to the pretax write-off of a portion of the Mountaineer Carbon Capture and Storage Product Validation Facility as denied for recovery by the WVPSC. This increase was partially offset by the $32 million decrease due to the deferral of 2010 costs related to storms and our cost reduction initiatives as allowed by the WVPSC.

(b)       Includes a $48 million pretax write-off related to Sporn Unit 5 shutdown (see Note 6), a $42 million pretax write-off related to the FGD project at Muskingum River Unit 5 (see Note 6) and a $43 million provision for refund of POLR charges (see Note 3).

(c)       This increase was partially offset by a $31 million pretax write-off related to the disallowance of certain Virginia environmental costs incurred in 2009 and 2010 as a result of APCo's November 2011 Virginia SCC order. Includes a $27 million increase due to a favorable Asset Retirement Obligation adjustment related to the early closure and previous write-off of the Mountaineer Carbon Capture and Storage Product Validation Facility.

(d)       Includes provisions related to the FAC, the 2010 SEET and the obligation to contribute to Partnership with Ohio and Ohio Growth Fund.

(e)       Includes a $49 million pretax write-off related to SWEPCo's Texas jurisdictional portion of the Turk Plant (see Note 6) as a result of the November 2011 Texas Court of Appeals decision upholding the Texas capital cost cap.

(f)       See Note 16 for discussion of expenses related to cost reduction initiatives in 2010.

(g)       Includes a $54 million pretax write-off of APCo's Virginia share of the Mountaineer Carbon Capture and Storage Product Validation Facility.

(h)       Includes provisions for certain regulatory and legal matters.

(i)       Includes a $43 million refund provision for the 2009 SEET.
Public Service Co Of Oklahoma [Member]
  
Unaudited Quarterly Financial Information [Abstract]  
Unaudited Quarterly Financial Information

17. UNAUDITED QUARTERLY FINANCIAL INFORMATION

 

In management's opinion, the unaudited quarterly information reflects all normal and recurring accruals and adjustments necessary for a fair presentation of the results of operations for interim periods. Quarterly results are not necessarily indicative of a full year's operations because of various factors. The unaudited quarterly financial information for each Registrant Subsidiary is as follows:

Quarterly Periods Ended:APCo I&M OPCo PSO SWEPCo 
    (in thousands) 
March 31, 2011               
Total Revenues$ 831,820 $ 560,492 $ 1,394,190 $ 288,003 $ 362,955 
Operating Income  116,061(a)  95,994   299,396   38,881   54,528 
Net Income  38,980(a)  45,427   165,970   15,389   29,827 
                
June 30, 2011               
Total Revenues$ 751,445 $ 521,478 $ 1,285,558 $ 328,588 $ 399,534 
Operating Income  88,567   64,351   261,534   64,185   80,054 
Net Income  31,627   31,386   142,194   31,560   51,071 
                
September 30, 2011               
Total Revenues$ 858,336 $ 611,232 $ 1,540,231 $ 457,586 $ 534,982 
Operating Income  122,716   100,352   210,453(b)  103,006   128,406 
Net Income  52,804   51,702   128,339(b)  57,349   87,795 
                
December 31, 2011               
Total Revenues$ 763,624 $ 521,568 $ 1,211,132 $ 289,211 $ 356,355 
Operating Income (Loss)  102,236(c)  20,959   63,321(d)  34,939   (12,731)(e)
Net Income (Loss)  39,347(c)  21,159   28,490(d)  20,330   (3,567)(e)

Quarterly Periods Ended:APCo I&M OPCo PSO SWEPCo 
    (in thousands) 
March 31, 2010               
Total Revenues$ 926,623 $ 553,056 $ 1,335,776 $ 237,755 $ 342,804 
Operating Income  157,938   87,870   279,744   22,622   43,468 
Net Income  70,282   45,058   143,553   4,139   31,083 
                
June 30, 2010               
Total Revenues$ 703,274 $ 509,915 $ 1,220,236 $ 327,686 $ 361,467 
Operating Income (f)  9,033(g)  42,140   186,773   39,265   43,518 
Net Income (Loss) (f)  (19,619)(g)  14,602   89,664   15,489   26,705 
                
September 30, 2010               
Total Revenues$ 840,622 $ 608,250 $ 1,474,401 $ 426,569 $ 480,982 
Operating Income  112,060   115,904   376,907   104,654   128,428 
Net Income  50,071   62,300   207,922   55,432   81,685 
                
December 31, 2010               
Total Revenues$ 804,584 $ 524,506 $ 1,224,703 $ 281,652 $ 338,281 
Operating Income  101,992   29,001(h)  201,186(i)  15,451   33,383 
Net Income (Loss)  35,934   4,131(h)  100,477(i)  (2,273)   7,211 

(a)       Includes a $41 million increase due to the pretax write-off of a portion of the Mountaineer Carbon Capture and Storage Product Validation Facility as denied for recovery by the WVPSC. This increase was partially offset by the $32 million decrease due to the deferral of 2010 costs related to storms and our cost reduction initiatives as allowed by the WVPSC.

(b)       Includes a $48 million pretax write-off related to Sporn Unit 5 shutdown (see Note 6), a $42 million pretax write-off related to the FGD project at Muskingum River Unit 5 (see Note 6) and a $43 million provision for refund of POLR charges (see Note 3).

(c)       This increase was partially offset by a $31 million pretax write-off related to the disallowance of certain Virginia environmental costs incurred in 2009 and 2010 as a result of APCo's November 2011 Virginia SCC order. Includes a $27 million increase due to a favorable Asset Retirement Obligation adjustment related to the early closure and previous write-off of the Mountaineer Carbon Capture and Storage Product Validation Facility.

(d)       Includes provisions related to the FAC, the 2010 SEET and the obligation to contribute to Partnership with Ohio and Ohio Growth Fund.

(e)       Includes a $49 million pretax write-off related to SWEPCo's Texas jurisdictional portion of the Turk Plant (see Note 6) as a result of the November 2011 Texas Court of Appeals decision upholding the Texas capital cost cap.

(f)       See Note 16 for discussion of expenses related to cost reduction initiatives in 2010.

(g)       Includes a $54 million pretax write-off of APCo's Virginia share of the Mountaineer Carbon Capture and Storage Product Validation Facility.

(h)       Includes provisions for certain regulatory and legal matters.

(i)       Includes a $43 million refund provision for the 2009 SEET.
Southwestern Electric Power Co [Member]
  
Unaudited Quarterly Financial Information [Abstract]  
Unaudited Quarterly Financial Information

17. UNAUDITED QUARTERLY FINANCIAL INFORMATION

 

In management's opinion, the unaudited quarterly information reflects all normal and recurring accruals and adjustments necessary for a fair presentation of the results of operations for interim periods. Quarterly results are not necessarily indicative of a full year's operations because of various factors. The unaudited quarterly financial information for each Registrant Subsidiary is as follows:

Quarterly Periods Ended:APCo I&M OPCo PSO SWEPCo 
    (in thousands) 
March 31, 2011               
Total Revenues$ 831,820 $ 560,492 $ 1,394,190 $ 288,003 $ 362,955 
Operating Income  116,061(a)  95,994   299,396   38,881   54,528 
Net Income  38,980(a)  45,427   165,970   15,389   29,827 
                
June 30, 2011               
Total Revenues$ 751,445 $ 521,478 $ 1,285,558 $ 328,588 $ 399,534 
Operating Income  88,567   64,351   261,534   64,185   80,054 
Net Income  31,627   31,386   142,194   31,560   51,071 
                
September 30, 2011               
Total Revenues$ 858,336 $ 611,232 $ 1,540,231 $ 457,586 $ 534,982 
Operating Income  122,716   100,352   210,453(b)  103,006   128,406 
Net Income  52,804   51,702   128,339(b)  57,349   87,795 
                
December 31, 2011               
Total Revenues$ 763,624 $ 521,568 $ 1,211,132 $ 289,211 $ 356,355 
Operating Income (Loss)  102,236(c)  20,959   63,321(d)  34,939   (12,731)(e)
Net Income (Loss)  39,347(c)  21,159   28,490(d)  20,330   (3,567)(e)

Quarterly Periods Ended:APCo I&M OPCo PSO SWEPCo 
    (in thousands) 
March 31, 2010               
Total Revenues$ 926,623 $ 553,056 $ 1,335,776 $ 237,755 $ 342,804 
Operating Income  157,938   87,870   279,744   22,622   43,468 
Net Income  70,282   45,058   143,553   4,139   31,083 
                
June 30, 2010               
Total Revenues$ 703,274 $ 509,915 $ 1,220,236 $ 327,686 $ 361,467 
Operating Income (f)  9,033(g)  42,140   186,773   39,265   43,518 
Net Income (Loss) (f)  (19,619)(g)  14,602   89,664   15,489   26,705 
                
September 30, 2010               
Total Revenues$ 840,622 $ 608,250 $ 1,474,401 $ 426,569 $ 480,982 
Operating Income  112,060   115,904   376,907   104,654   128,428 
Net Income  50,071   62,300   207,922   55,432   81,685 
                
December 31, 2010               
Total Revenues$ 804,584 $ 524,506 $ 1,224,703 $ 281,652 $ 338,281 
Operating Income  101,992   29,001(h)  201,186(i)  15,451   33,383 
Net Income (Loss)  35,934   4,131(h)  100,477(i)  (2,273)   7,211 

(a)       Includes a $41 million increase due to the pretax write-off of a portion of the Mountaineer Carbon Capture and Storage Product Validation Facility as denied for recovery by the WVPSC. This increase was partially offset by the $32 million decrease due to the deferral of 2010 costs related to storms and our cost reduction initiatives as allowed by the WVPSC.

(b)       Includes a $48 million pretax write-off related to Sporn Unit 5 shutdown (see Note 6), a $42 million pretax write-off related to the FGD project at Muskingum River Unit 5 (see Note 6) and a $43 million provision for refund of POLR charges (see Note 3).

(c)       This increase was partially offset by a $31 million pretax write-off related to the disallowance of certain Virginia environmental costs incurred in 2009 and 2010 as a result of APCo's November 2011 Virginia SCC order. Includes a $27 million increase due to a favorable Asset Retirement Obligation adjustment related to the early closure and previous write-off of the Mountaineer Carbon Capture and Storage Product Validation Facility.

(d)       Includes provisions related to the FAC, the 2010 SEET and the obligation to contribute to Partnership with Ohio and Ohio Growth Fund.

(e)       Includes a $49 million pretax write-off related to SWEPCo's Texas jurisdictional portion of the Turk Plant (see Note 6) as a result of the November 2011 Texas Court of Appeals decision upholding the Texas capital cost cap.

(f)       See Note 16 for discussion of expenses related to cost reduction initiatives in 2010.

(g)       Includes a $54 million pretax write-off of APCo's Virginia share of the Mountaineer Carbon Capture and Storage Product Validation Facility.

(h)       Includes provisions for certain regulatory and legal matters.

(i)       Includes a $43 million refund provision for the 2009 SEET.