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Institutional Investment Manager
CASTLEARK MANAGEMENT LLC
CASTLEARK MANAGEMENT LLC (CIK: 0001106832), located at 1 N Wacker Dr, Chicago, IL. Institutional holdings reported to the SEC.

Institutional Holdings (2014Q1)
Original 13F HR (0001106832-14-000002) filed in 2014.05.20
#
Name
Shares
Value ($)
%
Options
Notes
101 HESS CORP 29,100 2,412 0.07%
102 EQT CORP 25,040 2,428 0.07%
103 NGL ENERGY PARTNERS LP 65,700 2,466 0.07%
104 SPDR S&P 500 ETF TR 13,200 2,469 0.07%
105 Targa Resources Partners LP 45,070 2,536 0.07%
106 MURPHY OIL 40,700 2,558 0.07%
107 Plains Gp Hldgs Lp Npv A 93,700 2,622 0.07%
108 CIMAREX ENERGY 23,100 2,751 0.08%
109 CANCER GENETICS 186,410 2,813 0.08%
110 TESORO LOGISTICS LP 49,010 2,951 0.08%
111 OILTANKING PARTNERS LP 38,620 2,978 0.08%
112 CHEVRON CORP NEW 25,170 2,993 0.09%
113 WHITING PETE CORP NEW 44,350 3,077 0.09%
114 RENTRAK CORP 54,195 3,267 0.09%
115 PETROCHINA CO LTD 30,200 3,277 0.09%
116 TRIMBLE INC 84,800 3,296 0.09%
117 PETSMART 47,900 3,301 0.09%
118 SEMGROUP CORP CL A 51,060 3,354 0.10%
119 UNIT CORP COM 51,490 3,366 0.10%
120 STERICYCLE INC 30,600 3,477 0.10%
121 ENERGY TRANSFER L P 76,380 3,571 0.10%
122 Gastar Exploration, Ltd. 659,497 3,607 0.10%
123 GOODRICH PETE CORP 229,745 3,635 0.10%
124 BUCKEYE PARTNERS L P 49,110 3,686 0.10%
125 RAMBUS INC DEL 343,377 3,691 0.10%
126 CHINA PETROLEUM & CHEMICAL COR ADR SPONSORED 41,660 3,729 0.11%
127 LIVEPERSON INC 308,997 3,730 0.11%
128 CABOT OIL & GAS CORP 110,100 3,730 0.11%
129 EQT MIDSTREAM PARTNERS LP 55,980 3,937 0.11%
130 Xcerra Corp 446,481 3,978 0.11%
131 INTUITIVE SURGICAL INC 9,750 4,270 0.12%
132 DEPOMED INC 296,354 4,297 0.12%
133 WESTERN GAS PARTNERS LP 65,380 4,328 0.12%
134 STATOIL ASA 153,600 4,335 0.12%
135 SUMITOMO MITSUI FINL GROUP I 505,000 4,368 0.12%
136 Western Gas Equity Partners, L.P. 89,600 4,400 0.13%
137 LENNAR 111,500 4,418 0.13%
138 HAWAIIAN HOLDINGS INC COM 318,350 4,444 0.13%
139 MISTRAS GROUP INC 195,505 4,452 0.13%
140 GULFPORT ENERGY CORP 62,700 4,463 0.13%
141 Mueller Industries Inc 602,875 4,510 0.13%
142 EMERGENT BIOSOLUTIONS INC 180,225 4,554 0.13%
143 POWERSECURE INTL INC 200,675 4,704 0.13%
144 CANADIAN NAT RES LTD 123,750 4,748 0.14%
145 ANTERO RES CORP 77,350 4,842 0.14%
146 ENERGEN CORP COM 60,090 4,856 0.14%
147 NOVADAQ TECHNOLOGIES INC 220,303 4,908 0.14%
148 DEL FRISCOS RESTAURANT GROUP COM 177,245 4,944 0.14%
149 MARKWEST ENERGY PARTNERS LP 76,730 5,012 0.14%
150 CONSTANT CONTACT INC 206,457 5,050 0.14%
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