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| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2013 | BLACK HILLS CORP /SD/ | BKH | 0 | -23,655 | 0 | -1,042,000 | |
| 03/31/2013 | BLACK HILLS CORP /SD/ | BKH | 23,655 | -395,059 | 1,042,000 | -14,174,000 | $44.05 |
| 12/31/2012 | BLACK HILLS CORP /SD/ | BKH | 418,714 | -47,256 | 15,216,000 | -1,359,000 | $36.34 |
| 09/30/2012 | BLACK HILLS CORP /SD/ | BKH | 465,970 | -171,675 | 16,575,000 | -3,938,000 | $35.57 |
| 06/30/2012 | BLACK HILLS CORP /SD/ | BKH | 637,645 | -10,038 | 20,513,000 | -1,204,000 | $32.17 |
| 03/31/2012 | BLACK HILLS CORP /SD/ | BKH | 647,683 | -28,275 | 21,717,000 | 1,006,000 | $33.53 |
| 12/31/2011 | BLACK HILLS CORP /SD/ | BKH | 665,858 | -10,100 | 22,360,000 | 1,649,000 | $33.58 |
| 09/30/2011 | BLACK HILLS CORP /SD/ | BKH | 675,958 | -7,325 | 20,711,000 | 151,000 | $30.64 |
| 06/30/2011 | BLACK HILLS CORP /SD/ | BKH | 683,283 | 147,136 | 20,560,000 | 2,631,000 | $30.09 |
| 03/31/2011 | BLACK HILLS CORP /SD/ | BKH | 536,147 | -4,315 | 17,929,000 | 1,715,000 | $33.44 |
| 12/31/2010 | BLACK HILLS CORP /SD/ | BKH | 540,462 | -22,225 | 16,214,000 | -1,342,000 | $30.00 |
| 09/30/2010 | BLACK HILLS CORP /SD/ | BKH | 562,687 | -22,765 | 17,556,000 | 888,000 | $31.20 |
| 06/30/2010 | BLACK HILLS CORP /SD/ | BKH | 585,452 | -36,050 | 16,668,000 | -2,195,000 | $28.47 |
| 03/31/2010 | BLACK HILLS CORP /SD/ | BKH | 621,502 | 546,426 | 18,863,000 | 16,864,000 | $30.35 |
| 12/31/2009 | BLACK HILLS CORP /SD/ | BKH | 75,076 | 75,076 | 1,999,000 | 1,999,000 | $26.63 |
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