| A | Amendment | M | Marked Up | |
| E | Engrossment | $ | Fiscal Note | |
| HJ | House Journal | SJ | Senate Journal |
| Date | Day | Committee | |
|---|---|---|---|
| 02/03/2011 | 22 | Senate Natural Resources | |
| 02/11/2011 | 28 | Senate Natural Resources | |
| 02/11/2011 | 28 | Senate Natural Resources | |
| 03/10/2011 | 43 | House Energy and Natural Resources |