| A | Amendment | M | Marked Up | |
| E | Engrossment | $ | Fiscal Note | |
| HJ | House Journal | SJ | Senate Journal |
| Date | Day | Committee | |
|---|---|---|---|
| 01/23/2007 | 15 | House Natural Resources | |
| 02/22/2007 | 34 | Senate Natural Resources | |
| 02/22/2007 | 34 | Senate Natural Resources | |
| 03/29/2007 | 59 | Conference Committee | |
| 04/03/2007 | 62 | Conference Committee | |
| 04/05/2007 | 64 | Conference Committee | |
| 04/10/2007 | 67 | Conference Committee | |
| 04/12/2007 | 69 | Conference Committee |