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General | Insiders | Insider Transactions | Monthly Overview | Weekly Overview

Overview of all insider trading transactions in Bronco Drilling Company, Inc.. Get notifications about new insider transactions in Bronco Drilling Company, Inc. for free.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Jun 08 2011	BRNC	Bronco Drilling Co ...	INMOBILIARIA CARSO S A DE C V	10% Owner	Option Exercise	U	6.50	5,440,770	35,365,005	0
Jun 08 2011	BRNC	Bronco Drilling Co ...	INMOBILIARIA CARSO S A DE C V	10% Owner	Sell	U	11.00	4,200,000	46,200,000	0	4.2 M to 0 (-100.00 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	U	11.00	289,749	3,187,239	0	289.7 K to 0 (-100.00 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	House David W	Director	Sell	U	11.00	66,240	728,640	0	66.2 K to 0 (-100.00 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	Porter Matthew S	CFO, Treasurer and ...	Sell	U	11.00	87,765	965,415	0	87.8 K to 0 (-100.00 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	Snipes William R	Director	Sell	U	11.00	24,000	264,000	0	24 K to 0 (-100.00 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	Hefner Richard B	Director	Sell	U	11.00	15,000	165,000	0	15 K to 0 (-100.00 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	Hill Gary C	Director	Sell	U	11.00	17,500	192,500	0	17.5 K to 0 (-100.00 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Sell	U	11.00	404,036	4,444,396	0	404 K to 0 (-100.00 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	Starke Steven R	Chief Accounting Of ...	Sell	U	11.00	55,201	607,211	0	55.2 K to 0 (-100.00 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chairman & CEO	Sell	U	11.00	584,711	6,431,821	0	584.7 K to 0 (-100.00 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	CHESAPEAKE ENERGY CORP	10% Owner	Buy	P	11.00	4,521,802	49,739,822	1,000	-4,520,802 to 1,000 (-100.02 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	CHESAPEAKE ENERGY CORP	10% Owner	Buy	P	11.00	63,550,899	699,059,889	87,829,156	24.3 M to 87.8 M (+261.76 %)
Jun 07 2011	BRNC	Bronco Drilling Co ...	CHESAPEAKE ENERGY CORP	10% Owner	Buy	P	11.00	24,278,257	267,060,827	24,278,257	0 to 24.3 M
Mar 18 2011	BRNC	Bronco Drilling Co ...	Hill Gary C	Director	Sell	S	9.85	2,500	24,630	17,500	20 K to 17.5 K (-12.50 %)
Mar 18 2011	BRNC	Bronco Drilling Co ...	Hill Gary C	Director	Sell	S	9.56	2,500	23,900	20,000	22.5 K to 20 K (-11.11 %)
Mar 22 2011	BRNC	Bronco Drilling Co ...	Porter Matthew S	CFO, Treasurer and ...	Sell	S	9.90	4,500	44,550	87,765	92.3 K to 87.8 K (-4.88 %)
Mar 15 2011	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	10.11	12,143	122,766	289,749	301.9 K to 289.7 K (-4.02 %)
Mar 15 2011	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chairman and CEO	Sell	S	10.03	5,000	50,150	584,711	589.7 K to 584.7 K (-0.85 %)
Mar 11 2011	BRNC	Bronco Drilling Co ...	Hill Gary C	Director	Sell	S	9.64	2,500	24,100	22,500	25 K to 22.5 K (-10.00 %)
Mar 11 2011	BRNC	Bronco Drilling Co ...	Hill Gary C	Director	Sell	S	10.34	5,000	51,700	25,000	30 K to 25 K (-16.67 %)
Mar 11 2011	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chairman and CEO	Sell	S	10.06	16,400	164,984	589,711	606.1 K to 589.7 K (-2.71 %)
Mar 11 2011	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chairman and CEO	Sell	S	10.24	8,600	88,064	606,111	614.7 K to 606.1 K (-1.40 %)
Mar 10 2011	BRNC	Bronco Drilling Co ...	Starke Steven R	Chief Accounting Of ...	Sell	S	10.00	15,000	150,000	55,201	70.2 K to 55.2 K (-21.37 %)
Mar 01 2011	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chairman & CEO	Payment of Exercise	F	8.79	47,274	415,538	614,710	662 K to 614.7 K (-7.14 %)
Mar 11 2011	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	10.07	11,000	110,770	301,892	312.9 K to 301.9 K (-3.52 %)
Mar 11 2011	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	10.26	15,600	160,056	312,892	328.5 K to 312.9 K (-4.75 %)
Mar 01 2011	BRNC	Bronco Drilling Co ...	Starke Steven R	Chief Accounting Of ...	Payment of Exercise	F	8.79	6,867	60,361	70,201	77.1 K to 70.2 K (-8.91 %)
Mar 01 2011	BRNC	Bronco Drilling Co ...	Graves Zachary M	See General Remarks	Payment of Exercise	F	8.79	41,857	367,923	404,036	445.9 K to 404 K (-9.39 %)
Mar 01 2011	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Payment of Exercise	F	8.79	40,304	354,272	328,492	368.8 K to 328.5 K (-10.93 %)
Mar 01 2011	BRNC	Bronco Drilling Co ...	Porter Matthew S	CFO, Treasurer and ...	Payment of Exercise	F	8.79	7,235	63,596	92,265	99.5 K to 92.3 K (-7.27 %)
Feb 18 2011	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	8.15	30,000	244,500	368,796	398.8 K to 368.8 K (-7.52 %)
Feb 02 2011	BRNC	Bronco Drilling Co ...	Graves Zachary M	See Remarks	Sell	S	7.22	72,426	522,916	445,893	518.3 K to 445.9 K (-13.97 %)
Feb 02 2011	BRNC	Bronco Drilling Co ...	Graves Zachary M	See Remarks	Sell	S	7.00	597	4,179	518,319	518.9 K to 518.3 K (-0.12 %)
Jan 28 2011	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Sell	S	7.00	100	700	518,916	519 K to 518.9 K (-0.02 %)
Jan 28 2011	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Sell	S	7.00	2,927	20,489	519,016	521.9 K to 519 K (-0.56 %)
Jan 14 2011	BRNC	Bronco Drilling Co ...	Porter Matthew S	Chief Financial Off ...	Grant	A	0.00	39,500	0	99,500	60 K to 99.5 K (+65.83 %)
Jan 14 2011	BRNC	Bronco Drilling Co ...	Starke Steven R	Chief Accounting Of ...	Grant	A	0.00	21,330	0	77,068	55.7 K to 77.1 K (+38.27 %)
Jan 14 2011	BRNC	Bronco Drilling Co ...	Snipes William R	Director	Grant	A	0.00	15,000	0	24,000	9 K to 24 K (+166.67 %)
Jan 14 2011	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chief Executive Off ...	Grant	A	0.00	105,860	0	661,984	556.1 K to 662 K (+19.04 %)
Jan 14 2011	BRNC	Bronco Drilling Co ...	House David W	Director	Grant	A	0.00	15,000	0	66,240	51.2 K to 66.2 K (+29.27 %)
Jan 14 2011	BRNC	Bronco Drilling Co ...	Hill Gary C	Director	Grant	A	0.00	15,000	0	30,000	15 K to 30 K (+100.00 %)
Jan 14 2011	BRNC	Bronco Drilling Co ...	Hefner Richard B	Director	Grant	A	0.00	15,000	0	15,000	0 to 15 K
Jan 14 2011	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Grant	A	0.00	102,700	0	521,943	419.2 K to 521.9 K (+24.50 %)
Jan 13 2011	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Sell	S	6.95	9,146	63,565	419,243	428.4 K to 419.2 K (-2.13 %)
Jan 13 2011	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Sell	S	6.95	14,804	102,888	428,389	443.2 K to 428.4 K (-3.34 %)
Jan 14 2011	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	6.64	20,000	132,800	398,796	418.8 K to 398.8 K (-4.78 %)
Jan 14 2011	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Grant	A	0.00	102,700	0	418,796	316.1 K to 418.8 K (+32.49 %)
Dec 29 2010	BRNC	Bronco Drilling Co ...	Snipes William R	Director	Sell	S	7.37	6,000	44,220	9,000	15 K to 9 K (-40.00 %)
Oct 19 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	4.50	2,483	11,174	316,096	318.6 K to 316.1 K (-0.78 %)
Oct 15 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	4.51	10,600	47,806	318,579	329.2 K to 318.6 K (-3.22 %)
Oct 15 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	4.51	1,000	4,510	329,179	330.2 K to 329.2 K (-0.30 %)
Jun 22 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	4.51	17,917	80,806	330,179	348.1 K to 330.2 K (-5.15 %)
Jun 16 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	4.00	15,000	60,000	348,096	363.1 K to 348.1 K (-4.13 %)
Jun 15 2010	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Sell	S	3.66	20,000	73,200	443,193	463.2 K to 443.2 K (-4.32 %)
Jun 08 2010	BRNC	Bronco Drilling Co ...	Hill Gary C	Director	Sell	S	4.48	13,740	61,555	15,000	28.7 K to 15 K (-47.81 %)
May 27 2010	BRNC	Bronco Drilling Co ...	House David W	Director	Buy	P	3.58	5,000	17,900	51,240	46.2 K to 51.2 K (+10.81 %)
May 14 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	4.42	6,000	26,520	363,096	369.1 K to 363.1 K (-1.63 %)
May 14 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	4.43	9,000	39,870	369,096	378.1 K to 369.1 K (-2.38 %)
Apr 21 2010	BRNC	Bronco Drilling Co ...	Starke Steven R	Chief Accounting Of ...	Grant	A	0.00	27,000	0	55,238	28.2 K to 55.2 K (+95.62 %)
Apr 21 2010	BRNC	Bronco Drilling Co ...	Snipes William R	Director	Grant	A	0.00	15,000	0	15,000	0 to 15 K
Apr 21 2010	BRNC	Bronco Drilling Co ...	Porter Matthew S	Chief Financial Off ...	Grant	A	0.00	50,000	0	60,000	10 K to 60 K (+500.00 %)
Apr 21 2010	BRNC	Bronco Drilling Co ...	Houston David L	Director	Grant	A	0.00	15,000	0	41,240	26.2 K to 41.2 K (+57.16 %)
Apr 21 2010	BRNC	Bronco Drilling Co ...	House David W	Director	Grant	A	0.00	15,000	0	46,240	31.2 K to 46.2 K (+48.02 %)
Apr 21 2010	BRNC	Bronco Drilling Co ...	Hill Gary C	Director	Grant	A	0.00	15,000	0	28,740	13.7 K to 28.7 K (+109.17 %)
Apr 21 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Grant	A	0.00	330,000	0	378,096	48.1 K to 378.1 K (+686.13 %)
Apr 21 2010	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Grant	A	0.00	330,000	0	463,193	133.2 K to 463.2 K (+247.76 %)
Apr 21 2010	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chairman	Grant	A	0.00	334,000	0	556,124	222.1 K to 556.1 K (+150.37 %)
Apr 14 2010	BRNC	Bronco Drilling Co ...	Snipes William R	Director	Sell	S	4.83	6,172	29,811	0	6.2 K to 0 (-100.00 %)
Apr 14 2010	BRNC	Bronco Drilling Co ...	Snipes William R	Director	Sell	S	5.00	2,568	12,840	6,172	8.7 K to 6.2 K (-29.38 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Starke Steven R	Chief Accounting Of ...	Sell	S	4.92	500	2,460	28,238	28.7 K to 28.2 K (-1.74 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Starke Steven R	Chief Accounting Of ...	Sell	S	4.85	9,900	48,015	28,738	38.6 K to 28.7 K (-25.62 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Snipes William R	Director	Sell	S	4.84	1,000	4,840	8,740	9.7 K to 8.7 K (-10.27 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Porter Matthew S	Chief Financial Off ...	Sell	S	4.85	5,000	24,250	10,000	15 K to 10 K (-33.33 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Sell	S	5.04	7,171	36,142	147,193	154.4 K to 147.2 K (-4.65 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Sell	S	4.91	14,300	70,213	154,364	168.7 K to 154.4 K (-8.48 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Graves Zachary M	Executive VP of Ope ...	Sell	S	4.85	10,900	52,865	168,664	179.6 K to 168.7 K (-6.07 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chief Executive Off ...	Sell	S	5.07	14,400	73,008	222,124	236.5 K to 222.1 K (-6.09 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chief Executive Off ...	Sell	S	4.91	14,700	72,177	236,524	251.2 K to 236.5 K (-5.85 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chief Executive Off ...	Sell	S	4.85	11,500	55,775	251,224	262.7 K to 251.2 K (-4.38 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	5.06	14,200	71,852	48,096	62.3 K to 48.1 K (-22.79 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	4.91	14,900	73,159	62,296	77.2 K to 62.3 K (-19.30 %)
Mar 01 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	4.85	10,900	52,865	77,196	88.1 K to 77.2 K (-12.37 %)
Jan 05 2010	BRNC	Bronco Drilling Co ...	Starke Steven R	Chief Accounting Of ...	Sell	S	5.14	667	3,428	38,638	39.3 K to 38.6 K (-1.70 %)
Jan 05 2010	BRNC	Bronco Drilling Co ...	Dubberstein Mark	President	Sell	S	5.12	8,333	42,665	88,096	96.4 K to 88.1 K (-8.64 %)
Jan 05 2010	BRNC	Bronco Drilling Co ...	Graves Zachary M	Chief Financial Off ...	Sell	S	5.12	4,167	21,335	179,564	183.7 K to 179.6 K (-2.27 %)
Nov 17 2009	BRNC	Bronco Drilling Co ...	Hill Gary C	Director	Sell	S	5.86	5,500	32,230	13,740	19.2 K to 13.7 K (-28.59 %)
Nov 16 2009	BRNC	Bronco Drilling Co ...	Snipes William R	Director	Sell	S	6.05	4,000	24,200	9,740	13.7 K to 9.7 K (-29.11 %)
Nov 12 2009	BRNC	Bronco Drilling Co ...	Hill Gary C	Director	Sell	S	6.14	7,000	42,980	19,240	26.2 K to 19.2 K (-26.68 %)
Sep 22 2009	BRNC	Bronco Drilling Co ...	INMOBILIARIA CARSO S A DE C V	10% Owner	Option Exercise	P	6.50	5,440,770	35,365,005	5,440,770
Aug 21 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.28	9,282	39,737	989,498	998.8 K to 989.5 K (-0.93 %)
Aug 21 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.28	16,192	69,320	1,726,226	1.7 M to 1.7 M (-0.93 %)
Aug 21 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.15	1,316	5,461	998,780	1 M to 998.8 K (-0.13 %)
Aug 21 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.15	2,295	9,524	1,742,418	1.7 M to 1.7 M (-0.13 %)
Aug 14 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.26	6,953	29,613	1,000,096	1 M to 1 M (-0.69 %)
Aug 14 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.26	12,130	51,662	1,744,713	1.8 M to 1.7 M (-0.69 %)
Aug 14 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.30	2,757	11,864	1,007,049	1 M to 1 M (-0.27 %)
Aug 14 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.30	4,810	20,698	1,756,843	1.8 M to 1.8 M (-0.27 %)
Aug 12 2009	BRNC	Bronco Drilling Co ...	Harrison D Frank	Chief Executive Off ...	Sell	S	4.18	4,444	18,576	262,724	267.2 K to 262.7 K (-1.66 %)
Aug 10 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.25	3,119	13,262	1,009,806	1 M to 1 M (-0.31 %)
Aug 10 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.25	5,441	23,135	1,761,653	1.8 M to 1.8 M (-0.31 %)
Aug 10 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.13	8,699	35,896	1,012,925	1 M to 1 M (-0.85 %)
Aug 10 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.13	15,176	62,624	1,767,094	1.8 M to 1.8 M (-0.85 %)
Aug 05 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.21	4,740	19,941	1,021,624	1 M to 1 M (-0.46 %)
Aug 05 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.21	8,270	34,792	1,782,270	1.8 M to 1.8 M (-0.46 %)
Aug 05 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.20	22,780	95,594	1,026,364	1 M to 1 M (-2.17 %)
Aug 05 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.20	39,742	166,773	1,790,540	1.8 M to 1.8 M (-2.17 %)
Aug 05 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.17	31,190	130,181	1,049,144	1.1 M to 1 M (-2.89 %)
Aug 05 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.17	54,418	227,130	1,830,282	1.9 M to 1.8 M (-2.89 %)
Jul 29 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.16	1,099	4,576	1,080,334	1.1 M to 1.1 M (-0.10 %)
Jul 29 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.16	1,905	7,932	1,884,700	1.9 M to 1.9 M (-0.10 %)
Jul 24 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.10	18,098	74,274	1,081,433	1.1 M to 1.1 M (-1.65 %)
Jul 24 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.10	31,574	129,580	1,886,605	1.9 M to 1.9 M (-1.65 %)
Jul 24 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.03	32,606	131,529	1,099,531	1.1 M to 1.1 M (-2.88 %)
Jul 24 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.03	56,883	229,460	1,918,179	2 M to 1.9 M (-2.88 %)
Jul 20 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.06	9,167	37,183	1,132,137	1.1 M to 1.1 M (-0.80 %)
Jul 20 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.06	15,948	64,688	1,975,062	2 M to 2 M (-0.80 %)
Jul 20 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.05	293	1,187	1,141,304	1.1 M to 1.1 M (-0.03 %)
Jul 20 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.05	509	2,061	1,991,010	2 M to 2 M (-0.03 %)
Jul 20 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.00	7,683	30,754	1,141,597	1.1 M to 1.1 M (-0.67 %)
Jul 20 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.00	13,367	53,507	1,991,519	2 M to 2 M (-0.67 %)
Jul 15 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.08	21,797	88,962	1,149,280	1.2 M to 1.1 M (-1.86 %)
Jul 15 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.08	37,920	154,767	2,004,886	2 M to 2 M (-1.86 %)
Jul 15 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.05	2,555	10,340	1,171,077	1.2 M to 1.2 M (-0.22 %)
Jul 15 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.05	4,445	17,988	2,042,806	2 M to 2 M (-0.22 %)
Jul 15 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	3.71	49	182	1,173,632	1.2 M to 1.2 M (0.00 %)
Jul 15 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	3.72	85	316	2,047,251	2 M to 2 M (0.00 %)
Jul 09 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	3.69	5,726	21,152	1,173,681	1.2 M to 1.2 M (-0.49 %)
Jul 09 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	3.69	9,974	36,845	2,047,336	2.1 M to 2 M (-0.48 %)
Jul 09 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.01	1,349	5,415	1,179,407	1.2 M to 1.2 M (-0.11 %)
Jul 09 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.01	2,351	9,438	2,057,310	2.1 M to 2.1 M (-0.11 %)
Jul 06 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.05	3,027	12,267	1,180,756	1.2 M to 1.2 M (-0.26 %)
Jul 06 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.05	5,274	21,372	2,059,661	2.1 M to 2.1 M (-0.26 %)
Jul 06 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.32	6,315	27,305	1,183,783	1.2 M to 1.2 M (-0.53 %)
Jul 06 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.32	11,001	47,567	2,064,935	2.1 M to 2.1 M (-0.53 %)
Jun 29 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.40	100	440	2,075,936	2.1 M to 2.1 M (0.00 %)
Jun 29 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.40	63,032	277,341	1,190,098	1.3 M to 1.2 M (-5.03 %)
Jun 29 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	4.40	110,072	484,317	2,076,036	2.2 M to 2.1 M (-5.04 %)
Jun 12 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	6.30	3,700	23,314	1,253,130	1.3 M to 1.3 M (-0.29 %)
Jun 12 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	6.30	6,400	40,326	2,186,108	2.2 M to 2.2 M (-0.29 %)
Jun 09 2009	BRNC	Bronco Drilling Co ...	House David W	Director	Buy	P	6.50	5,300	34,450	31,240	25.9 K to 31.2 K (+20.43 %)
Jun 09 2009	BRNC	Bronco Drilling Co ...	House David W	Director	Buy	P	6.48	14,700	95,256	25,940	11.2 K to 25.9 K (+130.78 %)
Jun 08 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	6.25	4,700	29,375	1,256,830	1.3 M to 1.3 M (-0.37 %)
Jun 08 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	6.25	8,300	51,875	2,192,508	2.2 M to 2.2 M (-0.38 %)
Jun 03 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	6.27	13,367	83,822	1,261,530	1.3 M to 1.3 M (-1.05 %)
Jun 03 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	6.27	23,320	146,235	2,200,808	2.2 M to 2.2 M (-1.05 %)
Jun 03 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	6.21	3,721	23,106	1,274,897	1.3 M to 1.3 M (-0.29 %)
Jun 03 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	6.21	6,492	40,313	2,224,128	2.2 M to 2.2 M (-0.29 %)
May 12 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	6.23	8,661	53,944	1,278,618	1.3 M to 1.3 M (-0.67 %)
May 12 2009	BRNC	Bronco Drilling Co ...	WEXFORD CAPITAL LP	10% Owner	Sell	S	6.23	15,099	94,043	2,230,620	2.2 M to 2.2 M (-0.67 %)

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