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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
201 CANCER GENETICS 186,410 2,813 0.08%
202 CIMAREX ENERGY 23,100 2,751 0.08%
203 Plains Gp Hldgs Lp Npv A 93,700 2,622 0.07%
204 MURPHY OIL 40,700 2,558 0.07%
205 Targa Resources Partners LP 45,070 2,536 0.07%
206 SPDR S&P 500 ETF TR 13,200 2,469 0.07%
207 NGL ENERGY PARTNERS LP 65,700 2,466 0.07%
208 EQT CORP 25,040 2,428 0.07%
209 HESS CORP 29,100 2,412 0.07%
210 TARGA RES CORP 23,900 2,372 0.07%
211 SUMMIT MIDSTREAM PARTNERS LP 54,200 2,323 0.07%
212 GENESIS ENERGY LP COM UNITS NPV 42,450 2,301 0.07%
213 FASTENAL CO 46,000 2,268 0.06%
214 DICKS SPORTING GOODS INC 41,410 2,261 0.06%
215 VERTEX PHARMACEUTICALS INC 31,830 2,251 0.06%
216 EMERGE ENERGY SVCS LP 35,800 2,227 0.06%
217 MPLX LP 45,300 2,219 0.06%
218 Portfolio Recovery Ass 37,700 2,181 0.06%
219 IMPERIAL OIL LTD 45,700 2,127 0.06%
220 GENTEX CORP 66,060 2,083 0.06%
221 VARIAN MED SYS INC 24,760 2,080 0.06%
222 MOOG INC CL A 31,200 2,044 0.06%
223 BHP BILLITON LTD 29,500 1,999 0.06%
224 TRANSCANADA CORP 42,700 1,944 0.06%
225 PIONEER NAT RES CO 9,300 1,740 0.05%
226 ISHARES TR 40,900 1,677 0.05%
227 ABBOTT LABS 41,800 1,610 0.05%
228 CNOOC LTD 10,100 1,533 0.04%
229 ONEOK PARTNERS LP 26,160 1,401 0.04%
230 BONANZA CREEK ENERGY INC 31,215 1,386 0.04%
231 ALTERA CORPORATION 38,151 1,382 0.04%
232 CINTAS CORP 22,400 1,335 0.04%
233 LINN ENERGY LLC UNIT LTD LIAB 46,900 1,328 0.04%
234 DST SYS INC DEL 13,900 1,318 0.04%
235 SEALED AIR CORP NEW 38,220 1,256 0.04%
236 SONIC CORP 53,050 1,209 0.03%
237 SOUTHWEST AIRLS CO 50,450 1,191 0.03%
238 SUNCOR ENERGY INC NEW 33,990 1,188 0.03%
239 FOREST LABS INC COM 12,800 1,181 0.03%
240 ONEOK INC NEW 19,600 1,161 0.03%
241 HOLLYFRONTIER CORP 23,900 1,137 0.03%
242 CAMERON INTERNATIONAL COMPANY 17,600 1,087 0.03%
243 KINDER MORGAN MANAGEMENT LLC 14,727 1,055 0.03%
244 CONCHO RESOURCES 8,400 1,029 0.03%
245 RPM INTL INC 23,900 1,000 0.03%
246 MICROCHIP TECHNOLOGY 20,150 962 0.03%
247 WATERS CORP 8,800 954 0.03%
248 HELMERICH & PAYNE INC 8,800 947 0.03%
249 MYRIAD GENETICS INC 26,500 906 0.03%
250 TIVO INC 63,800 844 0.02%
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