| 日期/Date | 事件/Event | 地點/Location |
| 2011/1/11 | DVN, CVE, NFG at Capital Markets Unconventional Resource Conference | |
| 2011/1/11 | DVN, CVE, NFG at Capital Markets Unconventional Resource Conference | |
| 2011/1/11 | DVN, CVE, NFG at Capital Markets Unconventional Resource Conference | |
| 2011/1/11 | DVN, CVE, NFG at Capital Markets Unconventional Resource Conference | |