| A | Amendment | M | Marked Up | |
| E | Engrossment | $ | Fiscal Note | |
| HJ | House Journal | SJ | Senate Journal |
| Date | Day | Committee | |
|---|---|---|---|
| 01/19/2007 | 13 | House Natural Resources | |
| 01/19/2007 | 13 | House Natural Resources | |
| 02/23/2007 | 35 | Senate Natural Resources | |
| 03/15/2007 | 49 | Senate Natural Resources | |
| 03/21/2007 | 53 | Senate Natural Resources | |
| 04/02/2007 | 61 | Senate Natural Resources | |
| 04/12/2007 | 69 | Conference Committee | |
| 04/13/2007 | 70 | Conference Committee | |
| 04/20/2007 | 75 | Conference Committee |