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

Overview of all insider trading transactions in MARKWEST ENERGY PARTNERS L P. Get notifications about new insider transactions in MARKWEST ENERGY PARTNERS L P for free.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Grant	A	0.00	18,479	0	128,886	110.4 K to 128.9 K (+16.74 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Grant	A	0.00	15,399	0	109,171	93.8 K to 109.2 K (+16.42 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	WOLF DONALD D	Director	Grant	A	0.00	1,107	0	59,849	58.7 K to 59.8 K (+1.88 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Gift	G	0.00	94,000	0	94,000	0 to 94 K
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Gift	G	0.00	102,000	0	102,000	0 to 102 K
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Gift	G	0.00	196,000	0	150,745	346.7 K to 150.7 K (-56.53 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Grant	A	0.00	47,008	0	280,395	233.4 K to 280.4 K (+20.14 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	NICOLETTI WILLIAM P	Director	Grant	A	0.00	1,107	0	21,587	20.5 K to 21.6 K (+5.41 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	HEPPERMANN DONALD C	Director	Grant	A	0.00	1,107	0	166,116	165 K to 166.1 K (+0.67 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	Fox Mounsey Anne E	Director	Grant	A	0.00	1,107	0	74,581	73.5 K to 74.6 K (+1.51 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	LARSON RANDALL J	Director	Grant	A	0.00	1,107	0	7,667	6.6 K to 7.7 K (+16.88 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	DEMPSTER CHARLES	Director	Grant	A	0.00	1,107	0	21,793	20.7 K to 21.8 K (+5.35 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Grant	A	0.00	1,107	0	19,829	18.7 K to 19.8 K (+5.91 %)
Jan 25 2013	MWE	MARKWEST ENERGY PA ...	BAILEY KEITH E	Director	Grant	A	0.00	1,107	0	59,333	58.2 K to 59.3 K (+1.90 %)
Jan 17 2013	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Operatin ...	Sell	S	52.75	10,000	527,472	271,870	281.9 K to 271.9 K (-3.55 %)
Jan 02 2013	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Operatin ...	Sell	S	52.00	10,000	520,000	281,870	291.9 K to 281.9 K (-3.43 %)
Dec 10 2012	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Sell	S	51.09	15,000	766,416	110,407	125.4 K to 110.4 K (-11.96 %)
Dec 07 2012	MWE	MARKWEST ENERGY PA ...	BAILEY KEITH E	Director	Gift	G	0.00	5,000	0	58,226	63.2 K to 58.2 K (-7.91 %)
Nov 30 2012	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Operatin ...	Sell	S	52.01	10,000	520,129	291,870	301.9 K to 291.9 K (-3.31 %)
Nov 20 2012	MWE	MARKWEST ENERGY PA ...	BAILEY KEITH E	Director	Buy	P	48.35	5,200	251,404	63,226	58 K to 63.2 K (+8.96 %)
Nov 21 2012	MWE	MARKWEST ENERGY PA ...	WOLF DONALD D	Director	Buy	P	49.33	1,000	49,326	3,000	2 K to 3 K (+50.00 %)
Oct 16 2012	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Operatin ...	Sell	S	54.95	10,000	549,512	301,870	311.9 K to 301.9 K (-3.21 %)
Oct 02 2012	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	55.00	2,500	137,500	93,772	96.3 K to 93.8 K (-2.60 %)
Oct 01 2012	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Operatin ...	Sell	S	54.43	10,000	544,267	301,870	311.9 K to 301.9 K (-3.21 %)
Sep 12 2012	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Operatin ...	Sell	S	53.65	10,000	536,474	311,870	321.9 K to 311.9 K (-3.11 %)
Aug 10 2012	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	53.00	2,500	132,500	96,272	98.8 K to 96.3 K (-2.53 %)
May 01 2012	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	60.20	4,100	246,800	246,470	250.6 K to 246.5 K (-1.64 %)
May 01 2012	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	60.20	4,100	246,800	246,470	250.6 K to 246.5 K (-1.64 %)
Apr 25 2012	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	60.01	5,000	300,055	98,772	103.8 K to 98.8 K (-4.82 %)
Apr 05 2012	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	58.57	4,100	240,128	250,570	254.7 K to 250.6 K (-1.61 %)
Feb 06 2012	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	58.43	10,000	584,308	103,772	113.8 K to 103.8 K (-8.79 %)
Mar 23 2012	MWE	MARKWEST ENERGY PA ...	Rosson Paula L	VP/Chief Accounting ...	Sell	S	60.17	4,000	240,680	23,964	28 K to 24 K (-14.30 %)
Feb 06 2012	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Sell	S	58.33	10,000	583,263	125,407	135.4 K to 125.4 K (-7.39 %)
Feb 02 2012	MWE	MARKWEST ENERGY PA ...	Rosson Paula L	VP/Chief Accounting ...	Payment of Exercise	F	57.96	2,682	155,449	27,964	30.6 K to 28 K (-8.75 %)
Feb 02 2012	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Payment of Exercise	F	57.96	18,897	1,095,270	254,670	273.6 K to 254.7 K (-6.91 %)
Feb 02 2012	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Payment of Exercise	F	57.96	14,173	821,467	113,772	127.9 K to 113.8 K (-11.08 %)
Feb 02 2012	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Operatin ...	Payment of Exercise	F	57.96	18,897	1,095,270	321,870	340.8 K to 321.9 K (-5.55 %)
Feb 02 2012	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Payment of Exercise	F	57.96	14,173	821,467	135,407	149.6 K to 135.4 K (-9.48 %)
Feb 02 2012	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Payment of Exercise	F	57.96	23,621	1,369,073	624,882	648.5 K to 624.9 K (-3.64 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	Rosson Paula L	VP/Chief Accounting ...	Grant	A	0.00	3,750	0	30,646	26.9 K to 30.6 K (+13.94 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	Rosson Paula L	VP/Chief Accounting ...	Grant	A	0.00	5,625	0	26,896	21.3 K to 26.9 K (+26.44 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Grant	A	0.00	6,473	0	149,580	143.1 K to 149.6 K (+4.52 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Grant	A	0.00	16,621	0	143,107	126.5 K to 143.1 K (+13.14 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Grant	A	0.00	22,500	0	126,486	104 K to 126.5 K (+21.64 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Grant	A	0.00	6,473	0	127,945	121.5 K to 127.9 K (+5.33 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Grant	A	0.00	14,774	0	121,472	106.7 K to 121.5 K (+13.85 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Grant	A	0.00	22,500	0	106,698	84.2 K to 106.7 K (+26.72 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Grant	A	0.00	9,613	0	273,567	264 K to 273.6 K (+3.64 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Grant	A	0.00	22,346	0	263,954	241.6 K to 264 K (+9.25 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Grant	A	0.00	30,000	0	241,608	211.6 K to 241.6 K (+14.18 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Operatin ...	Grant	A	0.00	9,613	0	340,767	331.2 K to 340.8 K (+2.90 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Operatin ...	Grant	A	0.00	22,346	0	331,154	308.8 K to 331.2 K (+7.24 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Operatin ...	Grant	A	0.00	30,000	0	308,808	278.8 K to 308.8 K (+10.76 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	WOLF DONALD D	Director	Grant	A	0.00	1,043	0	58,742	57.7 K to 58.7 K (+1.81 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Grant	A	0.00	13,224	0	648,503	635.3 K to 648.5 K (+2.08 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Grant	A	0.00	58,041	0	635,279	577.2 K to 635.3 K (+10.05 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Grant	A	0.00	37,500	0	577,238	539.7 K to 577.2 K (+6.95 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	NICOLETTI WILLIAM P	Director	Grant	A	0.00	1,043	0	20,480	19.4 K to 20.5 K (+5.37 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	LARSON RANDALL J	Director	Grant	A	0.00	1,043	0	6,560	5.5 K to 6.6 K (+18.91 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	Fox Mounsey Anne E	Director	Grant	A	0.00	1,043	0	73,474	72.4 K to 73.5 K (+1.44 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	KELLSTROM WILLIAM A	Director	Grant	A	0.00	1,043	0	56,942	55.9 K to 56.9 K (+1.87 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	KELLSTROM WILLIAM A	Director	Gift	G	0.00	2,000	0	55,899	57.9 K to 55.9 K (-3.45 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	DEMPSTER CHARLES	Director	Grant	A	0.00	1,043	0	20,686	19.6 K to 20.7 K (+5.31 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	HEPPERMANN DONALD C	Director	Grant	A	0.00	1,043	0	165,009	164 K to 165 K (+0.64 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Grant	A	0.00	1,043	0	18,722	17.7 K to 18.7 K (+5.90 %)
Jan 30 2012	MWE	MARKWEST ENERGY PA ...	BAILEY KEITH E	Director	Grant	A	0.00	1,043	0	58,026	57 K to 58 K (+1.83 %)
Jan 17 2012	MWE	MARKWEST ENERGY PA ...	Rosson Paula L	VP/Chief Accounting ...	Sell	S	56.34	450	25,353	21,271	21.7 K to 21.3 K (-2.07 %)
Dec 15 2011	MWE	MARKWEST ENERGY PA ...	Rosson Paula L	VP/Chief Accounting ...	Sell	S	53.45	450	24,053	21,721	22.2 K to 21.7 K (-2.03 %)
Nov 15 2011	MWE	MARKWEST ENERGY PA ...	Rosson Paula L	VP/Chief Accounting ...	Sell	S	51.07	450	22,982	22,171	22.6 K to 22.2 K (-1.99 %)
Oct 28 2011	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Sell	S	50.00	2,900	145,000	103,986	106.9 K to 104 K (-2.71 %)
Oct 17 2011	MWE	MARKWEST ENERGY PA ...	Rosson Paula L	VP/Chief Accounting ...	Sell	S	46.47	450	20,912	22,621	23.1 K to 22.6 K (-1.95 %)
Sep 16 2011	MWE	MARKWEST ENERGY PA ...	Rosson Paula L	VP/Chief Accounting ...	Sell	S	48.05	450	21,623	23,071	23.5 K to 23.1 K (-1.91 %)
Aug 22 2011	MWE	MARKWEST ENERGY PA ...	BAILEY KEITH E	Director	Buy	P	43.23	5,000	216,130	56,983	52 K to 57 K (+9.62 %)
Aug 16 2011	MWE	MARKWEST ENERGY PA ...	Rosson Paula L	VP/Chief Accounting ...	Sell	S	46.89	450	21,101	23,521	24 K to 23.5 K (-1.88 %)
Aug 05 2011	MWE	MARKWEST ENERGY PA ...	LARSON RANDALL J	Director	Grant	A	0.00	517	0	5,517	5 K to 5.5 K (+10.34 %)
Jul 11 2011	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Sell	S	50.01	7,100	355,048	106,886	114 K to 106.9 K (-6.23 %)
Jul 01 2011	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	48.01	5,599	268,787	211,608	217.2 K to 211.6 K (-2.58 %)
Jun 14 2011	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Buy	P	47.38	3,165	149,958	17,679	14.5 K to 17.7 K (+21.81 %)
Jun 01 2011	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	47.30	5,599	264,849	217,207	222.8 K to 217.2 K (-2.51 %)
May 17 2011	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Buy	P	43.18	1,160	50,089	539,738	538.6 K to 539.7 K (+0.22 %)
May 13 2011	MWE	MARKWEST ENERGY PA ...	BAILEY KEITH E	Director	Buy	P	45.61	2,200	100,352	51,983	49.8 K to 52 K (+4.42 %)
May 02 2011	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	51.11	5,599	286,177	222,806	228.4 K to 222.8 K (-2.45 %)
Apr 04 2011	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	48.54	5,599	271,775	228,405	234 K to 228.4 K (-2.39 %)
Mar 09 2011	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Sell	S	45.57	10,000	455,693	113,986	124 K to 114 K (-8.07 %)
Mar 21 2011	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	46.00	2,500	115,000	84,198	86.7 K to 84.2 K (-2.88 %)
Mar 21 2011	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	45.03	2,500	112,565	86,698	89.2 K to 86.7 K (-2.80 %)
Feb 02 2011	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Payment of Exercise	F	43.57	25,570	1,114,085	538,578	564.1 K to 538.6 K (-4.53 %)
Mar 18 2011	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	44.73	5,000	223,661	89,198	94.2 K to 89.2 K (-5.31 %)
Mar 08 2011	MWE	MARKWEST ENERGY PA ...	NICOLETTI WILLIAM P	Director	Buy	P	42.55	244	10,382	19,437	19.2 K to 19.4 K (+1.27 %)
Feb 02 2011	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Payment of Exercise	F	43.57	19,522	850,574	234,004	253.5 K to 234 K (-7.70 %)
Feb 02 2011	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Opns Off ...	Payment of Exercise	F	43.57	19,522	850,574	278,808	298.3 K to 278.8 K (-6.54 %)
Feb 02 2011	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Payment of Exercise	F	43.57	15,182	661,480	123,986	139.2 K to 124 K (-10.91 %)
Feb 02 2011	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Payment of Exercise	F	43.57	15,245	664,225	94,198	109.4 K to 94.2 K (-13.93 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Opns Off ...	Grant	A	0.00	25,728	0	298,330	272.6 K to 298.3 K (+9.44 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Opns Off ...	Grant	A	0.00	30,000	0	272,602	242.6 K to 272.6 K (+12.37 %)
Feb 02 2011	MWE	MARKWEST ENERGY PA ...	Teets Bryan	VP Compliance & Int ...	Payment of Exercise	F	43.57	1,914	83,393	18,564	20.5 K to 18.6 K (-9.35 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Grant	A	0.00	18,771	0	109,443	90.7 K to 109.4 K (+20.70 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Grant	A	0.00	22,500	0	90,672	68.2 K to 90.7 K (+33.00 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Grant	A	0.00	25,728	0	253,526	227.8 K to 253.5 K (+11.29 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Grant	A	0.00	30,000	0	227,798	197.8 K to 227.8 K (+15.17 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Grant	A	0.00	21,331	0	139,168	117.8 K to 139.2 K (+18.10 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Grant	A	0.00	22,500	0	117,837	95.3 K to 117.8 K (+23.60 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Grant	A	0.00	81,122	0	564,148	483 K to 564.1 K (+16.79 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Grant	A	0.00	37,500	0	483,026	445.5 K to 483 K (+8.42 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	Teets Bryan	VP Compliance & Int ...	Grant	A	0.00	2,693	0	20,478	17.8 K to 20.5 K (+15.14 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	NICOLETTI WILLIAM P	Director	Grant	A	0.00	1,193	0	19,193	18 K to 19.2 K (+6.63 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	KELLSTROM WILLIAM A	Director	Grant	A	0.00	1,193	0	57,901	56.7 K to 57.9 K (+2.10 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	BAILEY KEITH E	Director	Grant	A	0.00	1,193	0	49,783	48.6 K to 49.8 K (+2.46 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	HEPPERMANN DONALD C	Director	Grant	A	0.00	1,193	0	163,966	162.8 K to 164 K (+0.73 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	DEMPSTER CHARLES	Director	Grant	A	0.00	1,193	0	19,643	18.5 K to 19.6 K (+6.47 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Grant	A	0.00	1,193	0	14,514	13.3 K to 14.5 K (+8.96 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	Fox Mounsey Anne E	Director	Grant	A	0.00	1,193	0	72,431	71.2 K to 72.4 K (+1.67 %)
Jan 31 2011	MWE	MARKWEST ENERGY PA ...	WOLF DONALD D	Director	Grant	A	0.00	1,193	0	57,699	56.5 K to 57.7 K (+2.11 %)
Jan 18 2011	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	42.77	7,500	320,809	197,798	205.3 K to 197.8 K (-3.65 %)
Dec 20 2010	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	41.39	7,500	310,421	205,298	212.8 K to 205.3 K (-3.52 %)
Nov 22 2010	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	42.26	7,500	316,987	212,798	220.3 K to 212.8 K (-3.40 %)
Oct 18 2010	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	36.90	7,500	276,757	220,298	227.8 K to 220.3 K (-3.29 %)
Oct 05 2010	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	37.00	2,500	92,500	68,172	70.7 K to 68.2 K (-3.54 %)
Oct 01 2010	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	36.01	5,000	180,046	70,672	75.7 K to 70.7 K (-6.61 %)
Oct 01 2010	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	35.65	5,000	178,265	75,672	80.7 K to 75.7 K (-6.20 %)
Sep 20 2010	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	34.45	7,500	258,373	227,798	235.3 K to 227.8 K (-3.19 %)
Aug 30 2010	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Grant	A	0.00	18,000	0	80,672	62.7 K to 80.7 K (+28.72 %)
Aug 30 2010	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Grant	A	0.00	19,000	0	95,337	76.3 K to 95.3 K (+24.89 %)
Aug 30 2010	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Opns Off ...	Grant	A	0.00	22,000	0	242,602	264.6 K to 242.6 K (-8.31 %)
Aug 30 2010	MWE	MARKWEST ENERGY PA ...	SEMPLE FRANK M	Chairman, President ...	Grant	A	0.00	81,000	0	445,526	364.5 K to 445.5 K (+22.22 %)
Aug 30 2010	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Sell	S	34.43	7,500	258,218	235,298	242.8 K to 235.3 K (-3.09 %)
Aug 30 2010	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Grant	A	0.00	22,000	0	242,798	220.8 K to 242.8 K (+9.96 %)
Aug 23 2010	MWE	MARKWEST ENERGY PA ...	KELLSTROM WILLIAM A	Director	Gift	G	0.00	2,000	0	56,708	58.7 K to 56.7 K (-3.41 %)
Aug 19 2010	MWE	MARKWEST ENERGY PA ...	BAILEY KEITH E	Director	Buy	P	34.14	1,500	51,210	48,590	47.1 K to 48.6 K (+3.19 %)
Jul 12 2010	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	34.00	5,000	170,000	62,672	67.7 K to 62.7 K (-7.39 %)
Jun 16 2010	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	31.02	5,000	155,106	67,672	72.7 K to 67.7 K (-6.88 %)
May 17 2010	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	30.36	5,000	151,821	72,672	77.7 K to 72.7 K (-6.44 %)
May 17 2010	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Sell	S	30.03	12,000	360,347	76,337	88.3 K to 76.3 K (-13.58 %)
Apr 22 2010	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Buy	P	24.42	1,800	43,956	13,321	11.5 K to 13.3 K (+15.62 %)
Apr 22 2010	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Buy	P	23.87	18	430	11,521	11.5 K to 11.5 K (+0.16 %)
Apr 22 2010	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Buy	P	21.03	19	400	11,504	11.5 K to 11.5 K (+0.17 %)
Apr 22 2010	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Buy	P	15.96	24	383	11,484	11.5 K to 11.5 K (+0.21 %)
Apr 22 2010	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Buy	P	11.33	33	374	11,460	11.4 K to 11.5 K (+0.29 %)
Apr 22 2010	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Buy	P	14.89	24	357	11,427	11.4 K to 11.4 K (+0.21 %)
Apr 22 2010	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Buy	P	33.13	10	331	11,403	11.4 K to 11.4 K (+0.09 %)
Apr 22 2010	MWE	MARKWEST ENERGY PA ...	BEATTY MICHAEL L	Director	Buy	P	36.14	9	325	11,393	11.4 K to 11.4 K (+0.08 %)
Apr 05 2010	MWE	MARKWEST ENERGY PA ...	Buese Nancy	SVP, Chief Financia ...	Sell	S	30.69	5,000	153,429	88,337	93.3 K to 88.3 K (-5.36 %)
Mar 22 2010	MWE	MARKWEST ENERGY PA ...	HEPPERMANN DONALD C	Director	Buy	P	30.95	500	15,475	162,774	162.3 K to 162.8 K (+0.31 %)
Feb 02 2010	MWE	MARKWEST ENERGY PA ...	Teets Bryan	VP Compliance & Int ...	Payment of Exercise	F	28.97	1,436	41,601	17,785	19.2 K to 17.8 K (-7.47 %)
Feb 02 2010	MWE	MARKWEST ENERGY PA ...	Teets Bryan	VP Compliance & Int ...	Grant	A	0.00	4,823	0	19,221	14.4 K to 19.2 K (+33.50 %)
Feb 16 2010	MWE	MARKWEST ENERGY PA ...	Bromley C Corwin	SVP, General Counse ...	Sell	S	28.61	10,000	286,100	77,672	87.7 K to 77.7 K (-11.41 %)
Feb 02 2010	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Payment of Exercise	F	28.97	14,821	429,364	220,798	235.6 K to 220.8 K (-6.29 %)
Feb 02 2010	MWE	MARKWEST ENERGY PA ...	NICKERSON RANDY S	SVP, Chief Commerci ...	Grant	A	0.00	24,000	0	235,619	211.6 K to 235.6 K (+11.34 %)
Feb 02 2010	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Opns Off ...	Payment of Exercise	F	28.97	14,791	428,495	220,602	235.4 K to 220.6 K (-6.28 %)
Feb 02 2010	MWE	MARKWEST ENERGY PA ...	MOLLENKOPF JOHN C	SVP, Chief Opns Off ...	Grant	A	0.00	24,000	0	235,393	211.4 K to 235.4 K (+11.35 %)

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