| Date | Event |
| 12-Nov-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Results of Operations and Financial Condition |
| 11-Nov-09 | Earnings announcement |
| 30-Oct-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Entry into a Material Definitive Agreement |
| 28-Oct-09 | Ex-Date for dividend payment of $0.32 |
| 26-Oct-09 | Price hit new 52-week high ($20.00) |
| 23-Oct-09 | Price hit new 52-week high ($19.92) |
| 22-Oct-09 | Price hit new 52-week high ($19.52) |
| 2-Oct-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Change in Directors or Principal Officers |
| 13-Aug-09 | WESTERN GAS PARTNERS LP Files SEC form 10-Q, Quarterly Report |
| 12-Aug-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Results of Operations and Financial Condition |
| 29-Jul-09 | Ex-Date for dividend payment of $0.31 |
| 23-Jul-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Entry into a Material Definitive Agreement, Unregistered Sale of Equity S |
| 15-Jul-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Entry into a Material Definitive Agreement |
| 16-Jun-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Other Events |
| 28-May-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Change in Directors or Principal Officers |
| 13-May-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Results of Operations and Financial Condition |
| 20-Apr-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Amendments to Articles of Inc. or Bylaws; Change in Fiscal Year |
| 13-Mar-09 | WESTERN GAS PARTNERS LP Files SEC form 10-K, Annual Report |
| 11-Mar-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Results of Operations and Financial Condition |
| 3-Mar-09 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Change in Directors or Principal Officers |
| 24-Dec-08 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Entry into a Material Definitive Agreement, Unregistered Sale of Equity S |
| 13-Nov-08 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Entry into a Material Definitive Agreement |
| 12-Nov-08 | WESTERN GAS PARTNERS LP Files SEC form 8-K, Results of Operations and Financial Condition |