| Date | Open | Close | Volume |
| 2010-03-03 | 46.47 | 46.54 | 195800 |
| 2010-03-02 | 46.32 | 46.35 | 20700 |
| 2010-03-01 | 45.84 | 46.31 | 80300 |
| 2010-02-26 | 45.78 | 45.68 | 282800 |
| 2010-02-25 | 45.35 | 45.75 | 29300 |
| 2010-02-24 | 45.56 | 45.91 | 28000 |
| 2010-02-23 | 45.55 | 45.21 | 46900 |
| 2010-02-22 | 45.88 | 45.66 | 41100 |
| 2010-02-19 | 45.64 | 45.78 | 71700 |
| 2010-02-18 | 45.16 | 45.59 | 52400 |
| 2010-02-17 | 44.75 | 45.16 | 25200 |
| 2010-02-16 | 44.34 | 44.60 | 55300 |
| 2010-02-12 | 43.61 | 44.02 | 126100 |
| 2010-02-11 | 43.52 | 44.06 | 34600 |
| 2010-02-10 | 43.69 | 43.53 | 143500 |
| 2010-02-09 | 43.60 | 43.63 | 56100 |
| 2010-02-08 | 43.60 | 43.34 | 38300 |
| 2010-02-05 | 43.38 | 43.63 | 103800 |
| 2010-02-04 | 44.31 | 43.31 | 91900 |
| 2010-02-03 | 44.37 | 44.65 | 45800 |
| 2010-02-02 | 44.35 | 44.63 | 49700 |
| 2010-02-01 | 43.96 | 44.30 | 90600 |
| 2010-01-29 | 44.79 | 43.82 | 165500 |
| 2010-01-28 | 45.20 | 44.56 | 57400 |
| 2010-01-27 | 44.94 | 45.26 | 369000 |
| 2010-01-26 | 45.09 | 45.11 | 25600 |
| 2010-01-25 | 45.43 | 45.16 | 59500 |
| 2010-01-22 | 46.48 | 45.18 | 51300 |
| 2010-01-21 | 47.12 | 46.48 | 81700 |
| 2010-01-20 | 47.25 | 47.06 | 43200 |
| 2010-01-19 | 47.21 | 47.71 | 46600 |
| 2010-01-15 | 47.60 | 47.21 | 27000 |
Other Companies: 10-01-2008-1 | Kodiak Oil & Gas Corp. | 04-09-2007-1
Double Eagle Petroleum Co. | 12-28-2009-1 | Education Realty Trust Inc.