Rang	Name	Position
1	Mr. Brady M. Murphy	President, CEO & Director
2	Mr. Matthew J. Sanderson	Executive VP & CFO
3	Mr. Timothy C. Moeller	Senior Vice President of Global Supply Chain & Chemicals
4	Mr. Roy Evan McNiven	Senior Vice President of Energy Services Operations
5	Ms. Katherine K. Kokenes	VP & Chief Accounting Officer
6	Mr. Kurt Kevin Hallead C.F.A.	Treasurer & VP of Investor Relations
7	Ms. Alicia P. Boston	Senior VP, General Counsel & Chief Compliance Officer
8	Mr. Kimberly M. O'Brien	Corporate Secretary

Aufteilung der Investoren

Rang	Inhaber	Anteile	Wert
1	BlackRock Inc	8,26%	72,97 Mio. USD
2	Neuberger Berman Group LLC	5,85%	51,75 Mio. USD
3	Vanguard Capital Management, LLC	4,13%	36,52 Mio. USD
4	Ameriprise Financial Inc	4,10%	36,21 Mio. USD
5	Needham Investment Management, LLC	3,82%	33,74 Mio. USD
6	Cramer Rosenthal McGlynn LLC	3,42%	30,27 Mio. USD
7	American Century Companies Inc	3,06%	27,03 Mio. USD
8	Driehaus Capital Management LLC	2,95%	26,11 Mio. USD
9	State Street Corp	2,67%	23,61 Mio. USD
10	Vaughan Nelson Scarbrgh & Mccullough LP	2,62%	23,17 Mio. USD
11	Broad Bay Capital Management, LP	2,36%	20,89 Mio. USD
12	Geode Capital Management, LLC	2,25%	19,92 Mio. USD
13	Dimensional Fund Advisors, Inc.	2,24%	19,82 Mio. USD
14	Emerald Advisers, LLC	2,09%	18,47 Mio. USD
15	Gendell Jeffrey L	1,71%	15,13 Mio. USD
16	Vanguard Portfolio Management, LLC	1,69%	14,97 Mio. USD
17	Wellington Management Company LLP	1,58%	13,99 Mio. USD
18	D. E. Shaw & Co LP	1,44%	12,76 Mio. USD
19	Millennium Management LLC	1,35%	11,95 Mio. USD
20	Emerald Mutual Fund Advisers Trust	1,33%	11,76 Mio. USD