| Historical Data for Chesapeake Energy Corp. (CHK) | | | | Pre-Market: $ 27.20 | 0.70(+2.64%) | Volume: 2.52 k | 7:43 AM EDT Oct 7, 2008 | | | | | | | | | Date | Open | High | Low | Close | Volume | Change | Change % | | 10/6/08 | 26.80 | 27.00 | 23.41 | 26.50 | 41,049,658 | -2.42 | -8.37% | | 10/3/08 | 30.55 | 31.89 | 28.76 | 28.92 | 24,321,507 | -1.15 | -3.82% | | 10/2/08 | 33.80 | 33.80 | 29.81 | 30.07 | 26,740,631 | -4.23 | -12.33% | | 10/1/08 | 35.07 | 35.46 | 32.93 | 34.30 | 17,686,678 | -1.56 | -4.35% | | 9/30/08 | 33.29 | 36.34 | 32.95 | 35.86 | 23,274,185 | 3.26 | 10.00% | | 9/29/08 | 36.63 | 36.70 | 31.15 | 32.60 | 28,882,107 | -5.34 | -14.07% | | 9/26/08 | 38.76 | 39.46 | 37.37 | 37.94 | 18,383,079 | -2.49 | -6.16% | | 9/25/08 | 39.29 | 41.11 | 38.94 | 40.43 | 14,194,442 | 0.80 | 2.02% | | 9/24/08 | 41.55 | 41.78 | 39.38 | 39.63 | 13,425,366 | -1.31 | -3.20% | | 9/23/08 | 41.50 | 42.67 | 39.71 | 40.94 | 22,853,406 | 0.05 | 0.12% | | 9/22/08 | 42.20 | 43.35 | 40.57 | 40.89 | 19,498,121 | -0.84 | -2.01% | | 9/19/08 | 41.00 | 42.27 | 39.56 | 41.73 | 21,815,469 | 3.16 | 8.19% | | 9/18/08 | 38.21 | 40.02 | 36.71 | 38.57 | 25,359,782 | 1.41 | 3.79% | | 9/17/08 | 38.81 | 39.95 | 36.61 | 37.16 | 25,044,581 | -1.46 | -3.78% | | 9/16/08 | 36.81 | 38.78 | 35.30 | 38.62 | 27,556,022 | 0.25 | 0.65% | | 9/15/08 | 39.70 | 40.65 | 37.94 | 38.37 | 20,429,786 | -3.89 | -9.20% | | 9/12/08 | 40.59 | 42.34 | 40.40 | 42.26 | 20,260,893 | 2.10 | 5.23% | | 9/11/08 | 39.82 | 40.55 | 38.26 | 40.16 | 21,938,986 | 0.01 | 0.02% | | 9/10/08 | 39.50 | 40.60 | 38.10 | 40.15 | 27,617,748 | 1.26 | 3.24% | | 9/9/08 | 41.73 | 42.035 | 38.88 | 38.89 | 27,698,127 | -3.83 | -8.97% | | 9/8/08 | 45.13 | 45.35 | 42.50 | 42.72 | 18,475,104 | -1.62 | -3.65% | | 9/5/08 | 44.87 | 45.22 | 43.05 | 44.34 | 18,744,269 | -0.32 | -0.72% | | 9/4/08 | 45.19 | 46.00 | 43.45 | 44.66 | 16,871,191 | -0.50 | -1.11% | | 9/3/08 | 44.98 | 46.09 | 43.92 | 45.16 | 24,943,420 | -0.08 | -0.18% | | 9/2/08 | 46.15 | 46.48 | 45.03 | 45.24 | 18,727,104 | -3.16 | -6.53% | | 8/29/08 | 49.87 | 49.872 | 48.32 | 48.40 | 9,330,379 | -0.84 | -1.71% | | 8/28/08 | 51.06 | 51.10 | 48.24 | 49.24 | 13,977,453 | -1.36 | -2.69% | | 8/27/08 | 50.83 | 50.89 | 49.78 | 50.60 | 13,160,386 | 1.15 | 2.33% | | 8/26/08 | 49.19 | 50.24 | 48.87 | 49.45 | 12,740,018 | 1.45 | 3.02% | | 8/25/08 | 47.48 | 48.87 | 47.11 | 48.00 | 9,849,121 | 0.35 | 0.73% | | 8/22/08 | 48.31 | 48.74 | 46.88 | 47.65 | 10,264,921 | -1.74 | -3.52% | | 8/21/08 | 49.58 | 50.13 | 48.57 | 49.39 | 16,160,166 | 0.77 | 1.58% | | 8/20/08 | 47.87 | 49.00 | 46.51 | 48.62 | 20,234,949 | 1.70 | 3.62% | | 8/19/08 | 45.23 | 47.29 | 45.00 | 46.92 | 14,552,275 | 2.00 | 4.45% | | 8/18/08 | 45.76 | 46.62 | 44.70 | 44.92 | 12,771,413 | -0.61 | -1.34% | | 8/15/08 | 45.68 | 46.30 | 44.80 | 45.53 | 12,731,672 | -0.87 | -1.88% | | 8/14/08 | 46.62 | 47.74 | 45.59 | 46.40 | 16,370,784 | -0.71 | -1.51% | | 8/13/08 | 45.03 | 47.60 | 44.76 | 47.11 | 21,574,746 | 2.09 | 4.64% | | 8/12/08 | 44.23 | 45.39 | 43.53 | 45.02 | 20,331,113 | 1.49 | 3.42% | | 8/11/08 | 43.65 | 44.78 | 42.20 | 43.53 | 21,719,813 | 0.24 | 0.55% | | 8/8/08 | 44.19 | 44.30 | 42.81 | 43.29 | 19,900,343 | -1.82 | -4.03% | | 8/7/08 | 47.18 | 47.50 | 45.00 | 45.11 | 19,026,645 | -1.22 | -2.63% | | 8/6/08 | 44.965 | 47.10 | 44.965 | 46.33 | 22,567,850 | 1.41 | 3.14% | | 8/5/08 | 45.00 | 46.14 | 43.79 | 44.92 | 27,535,034 | -0.33 | -0.73% | | 8/4/08 | 49.44 | 49.50 | 44.41 | 45.25 | 28,559,183 | -3.97 | -8.07% | | 8/1/08 | 49.50 | 51.71 | 48.51 | 49.22 | 22,219,483 | -0.93 | -1.85% | | 7/31/08 | 50.76 | 51.00 | 49.03 | 50.15 | 22,997,273 | -0.80 | -1.57% | | 7/30/08 | 46.75 | 51.17 | 46.75 | 50.95 | 27,737,017 | 3.77 | 7.99% | | 7/29/08 | 48.30 | 48.59 | 46.63 | 47.18 | 22,323,870 | -1.75 | -3.58% | | 7/28/08 | 48.96 | 50.58 | 48.48 | 48.93 | 19,193,801 | 0.64 | 1.33% | | 7/25/08 | 49.29 | 49.60 | 47.82 | 48.29 | 21,904,012 | -0.77 | -1.57% | | 7/24/08 | 47.75 | 49.65 | 45.00 | 49.06 | 53,328,839 | 2.10 | 4.47% | | 7/23/08 | 51.20 | 52.39 | 46.61 | 46.96 | 44,722,161 | -4.14 | -8.10% | | 7/22/08 | 54.64 | 54.85 | 50.71 | 51.10 | 28,274,445 | -4.74 | -8.49% | | 7/21/08 | 54.49 | 56.1142 | 53.62 | 55.84 | 14,400,821 | 1.51 | 2.78% | | 7/18/08 | 55.00 | 56.52 | 53.20 | 54.33 | 20,681,666 | -0.41 | -0.75% | | 7/17/08 | 57.00 | 57.80 | 52.00 | 54.74 | 32,792,109 | -1.93 | -3.41% | | 7/16/08 | 58.99 | 59.05 | 55.11 | 56.67 | 19,877,467 | -2.82 | -4.74% | | 7/15/08 | 62.88 | 63.80 | 59.16 | 59.49 | 16,540,519 | -3.51 | -5.57% | | 7/14/08 | 63.48 | 64.92 | 62.37 | 63.00 | 12,877,542 | -0.52 | -0.82% | | 7/11/08 | 63.48 | 65.97 | 61.94 | 63.52 | 25,543,511 | 1.94 | 3.15% | | 7/10/08 | 58.09 | 61.74 | 57.73 | 61.58 | 30,934,728 | 3.86 | 6.69% | | 7/9/08 | 59.04 | 61.00 | 57.72 | 57.72 | 24,223,088 | -3.83 | -6.22% | | | |