Dark
Light
System
Security
MARKWEST ENERGY PARTNERS LP
MARKWEST ENERGY PARTNERS LP. Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 325 Institutional holders with a total value of $7,689,588,647.
#
Manager Name
Shares
Value ($)
%
Options
Notes
51 MASON STREET ADVISORS, LLC 328,200 21,438,000 0.28%
52 REAVES W H & CO INC 314,050 20,514,000 0.27%
53 WELLS FARGO & COMPANY/MN 309,023 20,185,000 0.26%
54 SUSQUEHANNA INTERNATIONAL GROUP, LLP 291,400 19,034,000 0.25% Put
55 WESTWOOD HOLDINGS GROUP INC 266,122 17,383,000 0.23%
56 1919 Investment Counsel, LLC 242,322 15,829,000 0.21%
57 Wood Investment Counsel LLC 241,206 15,756,000 0.20%
58 Bank of New York Mellon Corp 240,568 15,715,000 0.20%
59 AVENIR CORP 238,199 15,559,000 0.20%
60 Weiss Multi-Strategy Advisers LLC 205,329 13,412,000 0.17%
61 BLACKROCK ADVISORS LLC 205,051 13,394,000 0.17%
62 UNITED SERVICES AUTOMOBILE ASSOCIATION 194,930 12,733,000 0.17%
63 HAP Trading, LLC 193,664 12,650,000 0.16%
64 C.V. Starr & Co., Inc. Trust 180,000 11,758,000 0.15%
65 ParenteBeard Wealth Management, LLC 176,250 11,512,679 0.15%
66 TRAVELERS COMPANIES, INC. 176,000 11,496,000 0.15%
67 WILLIAMS JONES & ASSOCIATES LLC 174,710 11,412,000 0.15%
68 NORTHERN TRUST CORP 174,380 11,390,000 0.15%
69 GUGGENHEIM CAPITAL LLC 168,261 10,990,000 0.14%
70 ALLSTATE CORP 159,135 10,395,000 0.14%
71 DELPHI FINANCIAL GROUP, INC. 150,300 9,800,000 0.13%
72 Heronetta Management, L.P. 145,720 9,518,000 0.12%
73 AMP Capital Investors Ltd 143,570 9,378,000 0.12%
74 HighTower Advisors, LLC 141,982 9,274,000 0.12%
75 Pinnacle Holdings, LLC 139,570 9,116,712 0.12%
76 BlackRock Investment Management, LLC 137,300 8,968,000 0.12%
77 STARR INTERNATIONAL CO INC 130,000 8,492,000 0.11%
78 Texas Yale Capital Corp. 128,530 8,396,000 0.11%
79 RUSSELL FRANK CO/ 126,359 8,257,000 0.11%
80 Samson Capital Management, LLC 120,188 7,851,000 0.10%
81 PEAK6 Group LLC 109,200 7,133,000 0.09% Put
82 UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO 107,111 6,996,000 0.09%
83 PNC FINANCIAL SERVICES GROUP, INC. 98,060 6,406,000 0.08%
84 CHICKASAW CAPITAL MANAGEMENT LLC 97,100 6,343,000 0.08%
85 BURNHAM ASSET MANAGEMENT CORP /NY/ 92,390 6,035,000 0.08%
86 Bollard Group LLC 88,979 5,812,000 0.08%
87 BB&T SECURITIES, LLC 8,789 5,740,000 0.07%
88 PEAK6 Group LLC 85,235 5,568,000 0.07%
89 STATE STREET CORP 84,595 5,526,000 0.07%
90 PRUDENTIAL PLC 80,000 5,226,000 0.07%
91 FIRST MANHATTAN CO. LLC. 79,396 5,186,000 0.07%
92 FRANKLIN RESOURCES INC 76,842 5,019,000 0.07%
93 CASTLEARK MANAGEMENT LLC 76,730 5,012,000 0.07%
94 MAI Capital Management 73,870 4,825,000 0.06%
95 Global X Management CO LLC 73,423 4,796,000 0.06%
96 Invesco Ltd. 72,816 4,756,000 0.06%
97 BANK OF MONTREAL /CAN/ 68,688 4,487,000 0.06%
98 Family Manage LLC 63,770 4,165,000 0.05%
99 Shinko Asset Management Co., Ltd. 63,488 4,147,000 0.05%
100 OPPENHEIMER & CO INC 61,562 4,021,000 0.05%
Page 2 of 7

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.