J MARK LESTER Insider Trading $CHK CHESAPEAKE ENERGY CORP

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General | Insider Transactions | Monthly Overview

Get the latest insider transactions of J MARK LESTER. J MARK LESTER is Executive Vice President in CHESAPEAKE ENERGY CORP ($CHK) and Retired Executive VP in CHESAPEAKE ENERGY CORP ($CHK).

J MARK LESTER in CHESAPEAKE ENERGY CORP

Trading Symbol: CHK
Industry: CRUDE PETROLEUM & NATURAL GAS [1311]
Position of J MARK LESTER: Retired Executive VP, Executive Vice President
Holdings: 315,458 shares
Current Value: $1,946,376
Latest Transaction: Feb 02 2010
$CHK Market Capitalization: $4.69B
$CHK Previous Close: $6.17

Last 4 weeks trend: HOLD
Last 3 months trend: HOLD

Latest Insider Trading Transactions of J MARK LESTER in CHESAPEAKE ENERGY CORP

	1 Week	2 Weeks	1 Month	3 Months	6 Months	1 Year	2 Years
No. of Purchases	0	0	0	0	0	0	0
Value of Purchases ($)	0	0	0	0	0	0	0
No. of Sales	0	0	0	0	0	0	0
Value of Sales ($)	0	0	0	0	0	0	0

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Sell	D	0.00	45,640	0	315,458	361.1 K to 315.5 K (-12.64 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	4,982	123,454	361,098	366.1 K to 361.1 K (-1.36 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	5,244	129,946	366,080	371.3 K to 366.1 K (-1.41 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	5,244	129,946	371,324	376.6 K to 371.3 K (-1.39 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	5,244	129,946	376,568	381.8 K to 376.6 K (-1.37 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	5,244	129,946	381,812	387.1 K to 381.8 K (-1.35 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	5,244	129,946	387,056	392.3 K to 387.1 K (-1.34 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	5,244	129,946	392,300	397.5 K to 392.3 K (-1.32 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	677	16,776	397,544	398.2 K to 397.5 K (-0.17 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	677	16,776	398,221	398.9 K to 398.2 K (-0.17 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	677	16,776	398,898	399.6 K to 398.9 K (-0.17 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	4,510	111,758	399,575	404.1 K to 399.6 K (-1.12 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	4,510	111,758	404,085	408.6 K to 404.1 K (-1.10 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	4,510	111,758	408,595	413.1 K to 408.6 K (-1.09 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	4,982	123,454	413,105	418.1 K to 413.1 K (-1.19 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	5,244	129,946	418,087	423.3 K to 418.1 K (-1.24 %)
Feb 02 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Retired Executive V ...	Payment of Exercise	F	24.78	4,351	107,818	423,331	427.7 K to 423.3 K (-1.02 %)
Jan 05 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	25.88	3,795	98,215	427,682	431.5 K to 427.7 K (-0.88 %)
Jan 05 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	25.88	4,250	109,990	431,477	435.7 K to 431.5 K (-0.98 %)
Jan 05 2010	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	25.88	1,209	31,289	435,727	434.5 K to 435.7 K (+0.28 %)
Oct 02 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	26.50	677	17,941	434,453	435.1 K to 434.5 K (-0.16 %)
Oct 02 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	28.40	3,796	107,806	435,130	431.3 K to 435.1 K (+0.88 %)
Aug 27 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	23.35	19,146	447,059	431,236	450.4 K to 431.2 K (-4.25 %)
Jul 06 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	18.68	4,943	92,335	450,382	455.3 K to 450.4 K (-1.09 %)
Jul 02 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	0.00	50,000	0	455,325	405.3 K to 455.3 K (+12.34 %)
Jul 02 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	D	19.67	3,435	67,566	405,325	408.8 K to 405.3 K (-0.84 %)
Jul 02 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	19.83	1,578	31,292	408,760	407.2 K to 408.8 K (+0.39 %)
Apr 02 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	17.06	5,030	85,812	407,093	402.1 K to 407.1 K (+1.25 %)
Jan 05 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	17.27	4,177	72,137	400,476	404.7 K to 400.5 K (-1.03 %)
Jan 05 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	0.00	50,000	0	404,653	354.7 K to 404.7 K (+14.10 %)
Jan 05 2009	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	16.17	1,935	31,289	354,653	352.7 K to 354.7 K (+0.55 %)
Oct 10 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Buy	P	14.84	5,000	74,200	362,619	357.6 K to 362.6 K (+1.40 %)
Oct 10 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Buy	P	12.50	5,000	62,500	357,619	352.6 K to 357.6 K (+1.42 %)
Oct 03 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	0.00	6,450	0	352,619	346.2 K to 352.6 K (+1.86 %)
Oct 02 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	35.86	2,943	105,536	346,169	343.2 K to 346.2 K (+0.86 %)
Jul 11 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	57.72	2,884	166,464	343,198	346.1 K to 343.2 K (-0.83 %)
Jul 07 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	66.78	4,719	315,135	346,082	350.8 K to 346.1 K (-1.35 %)
Jul 07 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	69.40	4,981	345,681	350,801	355.8 K to 350.8 K (-1.40 %)
Jul 02 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	67.36	3,565	240,138	355,782	359.3 K to 355.8 K (-0.99 %)
Jul 02 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	0.00	43,000	0	359,347	316.3 K to 359.3 K (+13.59 %)
Jul 02 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	65.69	459	30,152	316,347	315.9 K to 316.3 K (+0.15 %)
Jun 24 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	66.22	1,062	70,330	315,858	316.9 K to 315.9 K (-0.34 %)
Jun 24 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	66.22	2,000	132,440	316,920	318.9 K to 316.9 K (-0.63 %)
Jun 24 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	66.21	4,000	264,844	318,920	322.9 K to 318.9 K (-1.24 %)
Jun 24 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	66.23	2,000	132,464	322,920	324.9 K to 322.9 K (-0.62 %)
Jun 24 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	66.24	2,000	132,482	324,920	326.9 K to 324.9 K (-0.61 %)
Jun 24 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	66.24	2,000	132,484	326,920	328.9 K to 326.9 K (-0.61 %)
Jun 12 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	60.21	2,287	137,701	328,920	331.2 K to 328.9 K (-0.69 %)
Jun 12 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	60.22	2,000	120,448	331,207	333.2 K to 331.2 K (-0.60 %)
Jun 12 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	60.30	2,000	120,603	333,207	335.2 K to 333.2 K (-0.60 %)
Jun 12 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	60.31	2,000	120,621	335,207	337.2 K to 335.2 K (-0.59 %)
Jun 12 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	60.31	2,000	120,621	337,207	339.2 K to 337.2 K (-0.59 %)
Jun 12 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	60.27	2,000	120,540	339,207	341.2 K to 339.2 K (-0.59 %)
Jun 12 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	60.22	2,000	120,444	341,207	343.2 K to 341.2 K (-0.58 %)
Jun 12 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	60.17	2,000	120,334	343,207	345.2 K to 343.2 K (-0.58 %)
Jun 12 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	60.30	2,000	120,601	345,207	347.2 K to 345.2 K (-0.58 %)
Jun 09 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	56.08	4,981	279,334	347,207	352.2 K to 347.2 K (-1.41 %)
Jun 09 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	56.08	4,981	279,334	352,188	357.2 K to 352.2 K (-1.39 %)
Jun 09 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	56.08	4,981	279,334	357,169	362.2 K to 357.2 K (-1.38 %)
Jun 09 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	56.08	4,981	279,334	362,150	367.1 K to 362.2 K (-1.36 %)
Jun 09 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	56.08	3,146	176,428	367,131	370.3 K to 367.1 K (-0.85 %)
Jun 09 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	56.08	3,146	176,428	370,277	373.4 K to 370.3 K (-0.84 %)
Jun 09 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	56.08	3,565	199,925	373,423	377 K to 373.4 K (-0.95 %)
Jun 09 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	56.08	3,356	188,204	376,988	380.3 K to 377 K (-0.88 %)
Jun 09 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	56.08	4,719	264,642	380,344	385.1 K to 380.3 K (-1.23 %)
Jun 09 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	56.08	4,719	264,642	385,063	389.8 K to 385.1 K (-1.21 %)
May 08 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	55.61	2,613	145,303	389,782	392.4 K to 389.8 K (-0.67 %)
Apr 02 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	46.15	1,743	80,439	392,395	390.7 K to 392.4 K (+0.45 %)
Feb 28 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	45.86	6,894	316,159	390,061	397 K to 390.1 K (-1.74 %)
Jan 17 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	39.54	1,887	74,612	396,955	398.8 K to 397 K (-0.47 %)
Jan 14 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	39.60	842	33,345	398,842	399.7 K to 398.8 K (-0.21 %)
Jan 14 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	39.64	2,000	79,275	399,684	401.7 K to 399.7 K (-0.50 %)
Jan 14 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	39.65	2,000	79,301	401,684	403.7 K to 401.7 K (-0.50 %)
Jan 14 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	39.62	2,000	79,245	403,684	405.7 K to 403.7 K (-0.49 %)
Jan 14 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	39.63	2,000	79,259	405,684	407.7 K to 405.7 K (-0.49 %)
Jan 07 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	40.50	3,146	127,413	407,684	410.8 K to 407.7 K (-0.77 %)
Jan 07 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	40.50	3,512	142,236	410,830	414.3 K to 410.8 K (-0.85 %)
Jan 07 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	40.50	4,981	201,731	414,342	419.3 K to 414.3 K (-1.19 %)
Jan 03 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	0.00	47,500	0	419,375	371.9 K to 419.4 K (+12.77 %)
Jan 03 2008	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	39.20	762	29,870	371,875	371.1 K to 371.9 K (+0.21 %)
Oct 02 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	35.26	2,756	97,177	384,198	381.4 K to 384.2 K (+0.72 %)
Sep 18 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	35.14	2,000	70,280	381,400	383.4 K to 381.4 K (-0.52 %)
Sep 18 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	35.13	4,000	140,520	383,400	387.4 K to 383.4 K (-1.03 %)
Sep 18 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	35.11	514	18,045	387,400	387.9 K to 387.4 K (-0.13 %)
Aug 27 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.88	903	29,691	387,914	388.8 K to 387.9 K (-0.23 %)
Aug 27 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.88	2,000	65,753	388,817	390.8 K to 388.8 K (-0.51 %)
Aug 27 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.88	2,000	65,760	390,817	392.8 K to 390.8 K (-0.51 %)
Aug 27 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.87	2,000	65,740	392,817	394.8 K to 392.8 K (-0.51 %)
Aug 27 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.85	2,000	65,700	394,817	396.8 K to 394.8 K (-0.50 %)
Jul 11 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	35.28	2,894	102,100	396,817	399.7 K to 396.8 K (-0.72 %)
Jul 09 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Option Exercise	M	10.08	5,625	56,700	0
Jul 09 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Buy	M	10.08	5,625	56,700	399,711	394.1 K to 399.7 K (+1.43 %)
Jul 05 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	35.30	4,736	167,181	394,086	398.8 K to 394.1 K (-1.19 %)
Jul 03 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	0.00	47,500	0	398,822	351.3 K to 398.8 K (+13.52 %)
Jul 03 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	34.60	3,578	123,799	351,322	354.9 K to 351.3 K (-1.01 %)
Jul 03 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	34.60	846	29,272	354,900	354.1 K to 354.9 K (+0.24 %)
Jun 29 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Option Exercise	M	10.08	5,625	56,700	0
Jun 29 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Buy	M	10.08	5,625	56,700	354,014	348.4 K to 354 K (+1.61 %)
Jun 29 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	35.08	2,000	70,160	348,389	350.4 K to 348.4 K (-0.57 %)
Jun 29 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	35.07	1,625	56,986	350,389	352 K to 350.4 K (-0.46 %)
Jun 29 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	35.06	2,000	70,120	352,014	354 K to 352 K (-0.56 %)
May 14 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Option Exercise	M	10.08	5,625	56,700	5,625
May 14 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Option Exercise	M	7.80	6,250	48,750	0
May 14 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	34.17	3,625	123,866	354,014	357.6 K to 354 K (-1.01 %)
May 14 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	34.17	2,000	68,342	357,639	359.6 K to 357.6 K (-0.56 %)
May 14 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Buy	M	10.08	5,625	56,700	359,639	354 K to 359.6 K (+1.59 %)
May 14 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	34.21	250	8,553	354,014	354.3 K to 354 K (-0.07 %)
May 14 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	34.22	2,000	68,440	354,264	356.3 K to 354.3 K (-0.56 %)
May 14 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	34.17	2,000	68,346	356,264	358.3 K to 356.3 K (-0.56 %)
May 14 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	34.19	2,000	68,380	358,264	360.3 K to 358.3 K (-0.56 %)
May 14 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Buy	M	7.80	6,250	48,750	360,264	354 K to 360.3 K (+1.77 %)
Apr 03 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	30.88	2,334	72,074	354,014	351.7 K to 354 K (+0.66 %)
Mar 28 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Option Exercise	M	5.20	7,500	39,000	0
Mar 28 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	31.05	2,000	62,100	350,902	352.9 K to 350.9 K (-0.57 %)
Mar 28 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	31.06	5,500	170,830	352,902	358.4 K to 352.9 K (-1.53 %)
Mar 28 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Buy	M	5.20	7,500	39,000	358,402	350.9 K to 358.4 K (+2.14 %)
Jan 26 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Option Exercise	M	10.08	5,625	56,700	5,625
Jan 26 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Option Exercise	M	7.80	6,250	48,750	0
Jan 26 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Buy	M	7.80	6,250	48,750	357,883	351.6 K to 357.9 K (+1.78 %)
Jan 26 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Buy	M	10.08	5,625	56,700	351,633	346 K to 351.6 K (+1.63 %)
Feb 01 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	29.20	3,056	89,235	350,902	354 K to 350.9 K (-0.86 %)
Jan 25 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	29.74	1,048	31,168	346,008	347.1 K to 346 K (-0.30 %)
Jan 25 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	29.73	2,000	59,456	347,056	349.1 K to 347.1 K (-0.57 %)
Jan 25 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	29.69	2,000	59,380	349,056	351.1 K to 349.1 K (-0.57 %)
Jan 24 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	D	29.22	1,384	40,440	351,056	352.4 K to 351.1 K (-0.39 %)
Jan 24 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	D	29.25	2,000	58,490	352,440	354.4 K to 352.4 K (-0.56 %)
Jan 24 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	D	29.23	2,000	58,456	354,440	356.4 K to 354.4 K (-0.56 %)
Jan 17 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	28.05	1,444	40,504	356,440	357.9 K to 356.4 K (-0.40 %)
Jan 05 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	27.83	5,068	141,042	357,884	363 K to 357.9 K (-1.40 %)
Jan 05 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	27.83	47,500	1,321,925	362,952	315.5 K to 363 K (+15.06 %)
Jan 03 2007	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	29.05	871	25,303	315,452	314.6 K to 315.5 K (+0.28 %)
Nov 17 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.80	1,940	63,632	314,535	316.5 K to 314.5 K (-0.61 %)
Nov 17 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.79	2,000	65,580	316,475	318.5 K to 316.5 K (-0.63 %)
Oct 03 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Option Exercise	M	5.20	7,500	39,000	0
Oct 03 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	28.98	2,943	85,288	318,475	315.5 K to 318.5 K (+0.93 %)
Oct 03 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Buy	M	5.20	7,500	39,000	315,487	308 K to 315.5 K (+2.44 %)
Aug 29 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	0.00	91,280	0	307,987	216.7 K to 308 K (+42.12 %)
Aug 09 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.19	2,871	92,417	223,582	226.5 K to 223.6 K (-1.27 %)
Aug 09 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.17	2,000	64,330	226,453	228.5 K to 226.5 K (-0.88 %)
Aug 29 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.39	875	28,341	216,707	217.6 K to 216.7 K (-0.40 %)
Aug 29 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.37	2,000	64,740	217,582	219.6 K to 217.6 K (-0.91 %)
Aug 29 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.35	4,000	129,400	219,582	223.6 K to 219.6 K (-1.79 %)
Jul 11 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	29.40	2,935	86,289	228,453	231.4 K to 228.5 K (-1.27 %)
Jul 05 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	0.00	45,000	0	231,388	186.4 K to 231.4 K (+24.14 %)
Jul 05 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Payment of Exercise	F	30.25	3,629	109,777	186,388	190 K to 186.4 K (-1.91 %)
Jul 05 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Grant	A	30.25	743	22,476	189,977	189.2 K to 190 K (+0.39 %)
Jun 28 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	29.89	3,018	90,208	189,234	192.3 K to 189.2 K (-1.57 %)
May 12 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Option Exercise	M	7.80	6,250	48,750	6,250
May 12 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.89	2,250	74,003	192,252	194.5 K to 192.3 K (-1.16 %)
May 12 2006	CHK	CHESAPEAKE ENERGY ...	LESTER J MARK	Executive Vice Pres ...	Sell	S	32.87	1,000	32,870	194,502	195.5 K to 194.5 K (-0.51 %)

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