$CHK Top Institutional Holders Holder Shares Date Reported % Out Value G.F.W. Energy XI, L.P. 200,000,128 Mar 30, 2019 12.24% 620,000,396 Carlyle Group L.P. 172,897,387 Mar 30, 2019 10.58% 535,981,899 Vanguard Group, Inc. (The) 119,929,197 Mar 30, 2019 7.34% 371,780,510 G.F.W. Energy X, L.P. 110,812,594 Mar 30, 2019 6.78% 343,519,041 Blackrock Inc. 103,584,970 Mar 30, 2019 6.34% 321,113,407 Harris Associates L.P. 42,237,380 Mar 30, 2019 2.59% 130,935,878 State Street Corporation 40,277,808 Mar 30, 2019 2.47% 124,861,204 Capital Research Global Investors 23,118,217 Mar 30, 2019 1.42% 71,666,472 AQR Capital Management, LLC 20,994,654 Mar 30, 2019 1.29% 65,083,427 Dimensional Fund Advisors LP 18,955,858 Mar 30, 2019 1.16% 58,763,159 Top Mutual Fund Holders Holder Shares Date Reported % Out Value Oakmark Fund 40,000,000 Dec 30, 2018 2.45% 84,000,000 iShares Core S&P Midcap ETF 30,489,946 May 30, 2019 1.87% 58,540,696 Vanguard Total Stock Market Index Fund 23,229,804 Dec 30, 2018 1.42% 48,782,588 Vanguard Small-Cap Index Fund 22,369,507 Dec 30, 2018 1.37% 46,975,964 Investment Company Of America 20,000,000 Mar 30, 2019 1.22% 62,000,000 Vanguard Small Cap Value Index Fund 14,061,390 Dec 30, 2018 0.86% 29,528,919 SPDR (R) Ser Tr-SPDR (R) S&P (R) Oil & Gas Explor & Prod ETF 13,043,882 May 30, 2019 0.80% 25,044,253 Vanguard Extended Market Index Fund 12,547,664 Dec 30, 2018 0.77% 26,350,094 SPDR S&P Mid Cap 400 ETF Trust 11,987,468 May 30, 2019 0.73% 23,015,938 Vanguard Selected Value Fund 7,553,423 Oct 30, 2018 0.46% 26,512,514