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PIONEER NAT RES CO
PIONEER NAT RES CO. Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 601 Institutional holders with a total value of $25,519,162,088.
#
Manager Name
Shares
Value ($)
%
Options
Notes
251 CAPSTONE ASSET MANAGEMENT CO 26,598 4,978,000 0.02%
252 Spot Trading L.L.C 26,536 4,966,000 0.02%
253 FIRST TRUST ADVISORS LP 26,373 4,935,000 0.02%
254 INTEGRAL DERIVATIVES, LLC 26,000 4,866,000 0.02% Call
255 Bridgewater Associates, LP 25,700 4,809,000 0.02%
256 GREENWOOD CAPITAL ASSOCIATES LLC 25,525 4,777,000 0.02%
257 MARK ASSET MANAGEMENT LP 25,429 4,758,000 0.02%
258 Vollero Beach Capital Partners LLC 25,290 4,733,000 0.02%
259 BANK OF AMERICA CORP /DE/ 25,100 4,697,000 0.02% Put
260 TBP Investments Management, LLC 25,000 4,678,000 0.02%
261 OREGON PUBLIC EMPLOYEES RETIREMENT FUND 24,968 4,673,000 0.02%
262 Vollero Beach Capital Partners LLC 24,900 4,660,000 0.02% Call
263 WASHINGTON TRUST BANK 24,588 4,601,000 0.02%
264 Utah Retirement Systems 24,575 4,599,000 0.02%
265 SHELL ASSET MANAGEMENT CO 24,574 4,599,000 0.02%
266 KORNITZER CAPITAL MANAGEMENT INC /KS 24,000 4,491,000 0.02%
267 WELLS FARGO & COMPANY/MN 159,200 4,440,000 0.02% Call
268 HAP Trading, LLC 151,400 4,338,000 0.02% Call
269 ONTARIO TEACHERS PENSION PLAN BOARD 22,637 4,236,000 0.02%
270 Walleye Trading LLC 22,398 4,192,000 0.02%
271 JANUS HENDERSON GROUP PLC 22,109 4,138,000 0.02%
272 GW CAPITAL INC 22,015 4,120,000 0.02%
273 KBC Group NV 22,008 4,119,000 0.02%
274 GLG LLC 21,888 4,096,000 0.02%
275 GARDNER LEWIS ASSET MANAGEMENT L P 21,884 4,095,000 0.02%
276 CENTRAL TRUST Co 21,319 3,990,000 0.02%
277 Twin Tree Management, LP 21,300 3,986,000 0.02% Call
278 BBVA USA Bancshares, Inc. 21,128 3,954,000 0.02%
279 Jefferies Group LLC 21,100 3,949,000 0.02% Call
280 Advisors Asset Management, Inc. 20,425 3,822,000 0.01%
281 Dai-ichi Life Holdings, Inc. 19,993 3,741,000 0.01%
282 Virtu KCG Holdings LLC 19,920 3,728,000 0.01%
283 Livforsakringsbolaget Skandia, Omsesidigt 19,917 3,727,000 0.01%
284 FIDUCIARY FINANCIAL SERVICES OF THE SOUTHWEST INC /TX 19,663 3,680,000 0.01%
285 World Asset Management Inc 18,914 3,540,000 0.01%
286 NEW MEXICO EDUCATIONAL RETIREMENT BOARD 18,667 3,493,000 0.01%
287 CONGRESS ASSET MANAGEMENT CO 18,558 3,473,000 0.01%
288 Campbell & CO Investment Adviser LLC 18,548 3,471,000 0.01%
289 Sculptor Capital LP 18,000 3,369,000 0.01% Put
290 Daiwa SB Investments Ltd. 17,600 3,294,000 0.01%
291 WATERS PARKERSON & CO., LLC 17,135 3,207,000 0.01%
292 MARSHALL WACE, LLP 17,080 3,196,000 0.01%
293 GAMCO INVESTORS, INC. ET AL 17,020 3,185,000 0.01%
294 Talara Capital Management, LLC 17,000 3,181,000 0.01%
295 UBS AG 16,100 3,013,000 0.01% Put
296 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 16,024 2,999,000 0.01%
297 CIBC Asset Management Inc 15,822 2,961,000 0.01%
298 Nicholas Investment Partners, LP 15,769 2,951,000 0.01%
299 NOMURA ASSET MANAGEMENT CO LTD 15,759 2,949,000 0.01%
300 GSA CAPITAL PARTNERS LLP 15,617 2,923,000 0.01%
Page 6 of 13

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.