| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2017-02-09 | WELLINGTON MANAGEMENT GROUP LLP | ANADARKO PETROLEUM CORP | 22,406,389 | 4.0% | EDGAR |
| SC 13G/A | 2017-02-09 | VANGUARD GROUP INC | ANADARKO PETROLEUM CORP | 37,643,758 | 6.7% | EDGAR |
| SC 13G | 2017-02-09 | STATE STREET CORP | ANADARKO PETROLEUM CORP | - | 5.1% | EDGAR |
| SC 13G | 2017-02-03 | Bank of New York Mellon Corp | ANADARKO PETROLEUM CORP | 509,305 | 5.5% | EDGAR |
| SC 13G/A | 2017-01-19 | BlackRock Inc. | ANADARKO PETROLEUM CORP | 42,431,757 | 7.6% | EDGAR |
| SC 13D/A | 2016-07-19 | ANADARKO PETROLEUM CORP | Western Gas Partners LP | 52,143,426 | 39.9% | EDGAR |
| SC 13D/A | 2016-07-19 | ANADARKO PETROLEUM CORP | Western Gas Equity Partners, LP | 178,587,365 | 81.6% | EDGAR |
| SC 13G/A | 2016-02-22 | STATE STREET CORP | ANADARKO PETROLEUM CORP | - | 4.7% | EDGAR |
| SC 13G | 2016-02-16 | Clearbridge Investments, LLC | ANADARKO PETROLEUM CORP | 26,219,370 | 5.2% | EDGAR |
| SC 13G | 2016-02-11 | WELLINGTON MANAGEMENT GROUP LLP | ANADARKO PETROLEUM CORP | 26,762,212 | 5.3% | EDGAR |
| SC 13G/A | 2016-02-10 | BlackRock Inc. | ANADARKO PETROLEUM CORP | 37,524,786 | 7.4% | EDGAR |
| SC 13G/A | 2016-02-10 | VANGUARD GROUP INC | ANADARKO PETROLEUM CORP | 31,667,403 | 6.2% | EDGAR |
| SC 13D/A | 2015-06-25 | ANADARKO PETROLEUM CORP | Western Gas Equity Partners, LP | 191,087,365 | 87.3% | EDGAR |
| SC 13D/A | 2015-02-13 | ANADARKO PETROLEUM CORP | Western Gas Partners LP | 50,053,824 | 39.2% | EDGAR |
| SC 13G/A | 2015-02-11 | VANGUARD GROUP INC | ANADARKO PETROLEUM CORP | 28,587,442 | 5.6% | EDGAR |
| SC 13G | 2015-02-11 | STATE STREET CORP | ANADARKO PETROLEUM CORP | - | 5.1% | EDGAR |
| SC 13G/A | 2015-01-22 | BlackRock Inc. | ANADARKO PETROLEUM CORP | 43,286,886 | 8.5% | EDGAR |
| SC 13G/A | 2014-02-14 | FMR LLC | ANADARKO PETROLEUM CORP | 23,775,296 | 4.7% | EDGAR |
| SC 13G/A | 2014-02-14 | WELLINGTON MANAGEMENT CO LLP | ANADARKO PETROLEUM CORP | 24,850,396 | 4.9% | EDGAR |
| SC 13G | 2014-02-11 | VANGUARD GROUP INC | ANADARKO PETROLEUM CORP | 25,647,988 | 5.1% | EDGAR |