BRNC - Bronco Drilling Company, Inc. - Insider Stock Trading

Filing Date	T Date	Ticker	Sector	Ind	Industry	Owner	oSt	Rel	Title	T	TVal	Price	Qty	oc	Own	H
6/7/11 18:27	6/6/11	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Chesapeake Energy Corp	OK	T		P	1,015,861	11.00	92,351		1	I
5/27/10 16:09	5/27/10	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	House David W	OK	D		P	18	3.58	5	11	51	D
6/9/09 16:57	6/5/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	House David W	OK	D		P.m	130	6.49	20	178	31	D
3/9/09 19:05	3/5/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	202	3.81	53	1	8,347
3/6/09 17:03	3/4/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	182	3.88	47	1	8,247
3/5/09 17:38	3/3/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	268	3.72	72	1	8,128
3/4/09 17:14	3/2/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	75	3.77	20	0	8,038
3/2/09 17:07	2/26/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	69	4.75	15	0	4,008
3/2/09 17:06	2/26/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	179	4.65	38	0	7,949
2/27/09 18:19	2/25/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	116	4.84	24	0	7,886
2/9/09 17:16	2/5/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	2,700	6.00	450	13	3,931
1/21/09 18:50	1/16/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	98	5.74	17	0	6,945
1/20/09 17:02	1/15/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	103	5.74	18	0	6,911
1/14/09 18:11	1/12/09	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	313	5.91	53	1	6,839
1/2/09 17:22	12/30/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	161	5.95	27	0	6,759
12/31/08 17:01	12/29/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	394	5.96	66	1	6,666	D
12/30/08 17:10	12/24/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	3	5.98	1	0	3,300	D
12/30/08 17:09	12/24/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	202	5.86	35	1	6,565	D
12/24/08 17:17	12/22/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P.m	640	6.04	106	2	6,424	D
12/23/08 17:13	12/19/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	804	6.00	134	2	6,192	D
12/18/08 17:23	12/16/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	316	6.44	49	1	6,002	D
12/10/08 17:22	12/8/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	7	6.98	1	0	5,951	D
12/9/08 19:37	12/5/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	159	6.35	25	0	5,931	D
12/8/08 18:49	12/4/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	485	6.47	75	3	2,950	D
12/2/08 17:27	11/28/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	98	6.13	16	0	5,735	D
12/1/08 19:13	11/26/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	21	5.71	4	0	5,715	D
12/1/08 19:13	11/26/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	154	5.44	28	1	5,683	D
11/28/08 17:22	11/25/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	528	5.50	96	2	5,558	D
11/26/08 17:12	11/24/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Inmobiliaria Carso S A De C V	O5	TH	Affiliat	P	273	5.35	51	1	5,411	D
10/10/08 16:55	10/8/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Wexford Capital LLC	CT	T		P	768	7.55	102	5	2,209	I
10/1/08 17:21	9/29/08	BRNC	Energy	OilDrl	Drilling Oil & Gas Wells	Wexford Capital LLC	CT	T		P.m	1,113	10.07	111	3	3,414	I

D	Derivative transaction in filing (usually option exercise)
M	Multiple transactions in filing; earliest reported transaction date and weighted average transaction price
A	Amended filing
E	Error detected in filing

S - Sale	Sale of securities on an exchange or to another person
S - Sale+OE	Sale of securities on an exchange or to another person (after option exercise)
F - Tax	Payment of exercise price or tax liability using portion of securities received from the company
P - Purchase	Purchase of securities on an exchange or from another person

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