Proved Reserve Growth
Bcfe at end of year
Production Growth
Average mmcfe per day for year
Total Resource Base Growth*
Bcfe at end of year
*Proved and unrisked, unproved reserves
FIVE-YEAR PERFORMANCE
As of December 31   
 CHK       2010 Peer Group (1)        S&P 500
TEN-YEAR PERFORMANCE
As of December 31   
 CHK       2010 Peer Group (1)        S&P 500
20,000
40,000
60,000
100,000
80,000
120,000
0
500
1,000
1,500
2,000
2,500
3,000
0
500
1000
1500
2000
2500
3000
0
5000
10000
15000
20000
0
20000
40000
60000
80000
100000
120000
00 01 02 03 04 05 06 07 08 09 10
0
5,000
10,000
15,000
20,000
00 01 02 03 04 05 06 07 08 09 10
0
00 01 02 03 04 05 06 07 08 09 10
20,000
40,000
60,000
100,000
80,000
120,000
0
500
1,000
1,500
2,000
2,500
3,000
0
500
1000
1500
2000
2500
3000
0
5000
10000
15000
20000
0
20000
40000
60000
80000
100000
120000
00 01 02 03 04 05 06 07 08 09 10
0
5,000
10,000
15,000
20,000
00 01 02 03 04 05 06 07 08 09 10
0
00 01 02 03 04 05 06 07 08 09 10
50,000
100,000
150,000
250,000
200,000
300,000
0
500
1,000
1,500
2,000
2,500
3,000
0
500
1000
1500
2000
2500
3000
0
5000
10000
15000
20000
0
50000
100000
150000
200000
250000
300000
00 01 02 03 04 05 06 07 08 09 10
0
5,000
10,000
15,000
20,000
00 01 02 03 04 05 06 07 08 09 10
0
00 01 02 03 04 05 06 07 08 09 10
0
10
20
30
40
50
60
70
80
0
5
10
15
20
$  0
$  10
$ 20
$ 30
$ 40
$ 50
$ 60
$ 70
DEC 00 DEC 01 DEC 02 DEC 03 DEC 04 DEC 05 DEC 06 DEC 07 DEC 08 DEC 09 DEC 10
CHK Stock Price
$ 0
$ 2.50
$ 5.00
$ 7.50
$ 10.00
$ 12.50
$ 15.00
$ 17.50
$/mcf
Chesapeake’s Stock Price    Chesapeake’s Stock Price at Month End            Henry Hub Natural Gas Spot Price at Month End
(1)    The 2010 peer group is comprised of Anadarko Petroleum Corp., Apache Corp., Devon Energy Corp., Encana Corp. and EOG Resources, Inc.  
XTO Energy, Inc. was not included in the 2010 peer group due to its acquisition by Exxon Mobil Corp.
Chesapeake’s Five-Year and Ten-Year Common Stock Performance
The graphs below compare the performance of our common stock to the S&P 500 Stock Index and a group of peer companies for the past five and 10 years.  
The graph on the left assumes an investment of $100 on December 31, 2004 and the reinvestment of all dividends. The graph on the right assumes an invest -
ment of $100 on December 31, 1999 and the reinvestment of all dividends. The graphs show the value of the investment at the end of each year.
$ 0
$ 100
$ 200
$ 300
$ 400
$ 500
0
100
200
300
400
500
0
100
200
300
400
500
500
00 02 04 06 0801 03 05 07 09 10
0
100
200
300
400
500
0
100
200
300
400
500
500
$ 0
$ 30
$ 60
$ 90
$ 120
$ 150
0
30
60
90
120
150
0
30
60
90
120
150
150
0
30
60
90
120
150
0
30
60
90
120
150
150
05 06 07 08 09 10
2010 ANNUAL REPORT  |  3