Contract
EXHIBIT
12 -Joint Filing Agreement
The
undersigned reporting persons hereby agree that the statements filed pursuant
to
this Schedule 13D/A, to which this Agreement is filed as an exhibit, are
filed
on behalf of each of them.
Date:
October 6, 2005
By:
|
EnCap
Equity Fund IV GP, L.P., its general partner
|
|||
By:
|
EnCap
Investments L.P., its general partner
|
|||
By:
|
EnCap
Investments GP, L.L.C., its general partner
|
|||
By:
|
/s/
Xxxxx X. Xxxxxx
|
|||
Xxxxx
X. Xxxxxx
|
||||
Title:
|
Senior
Managing Director
|
|||
EnCap
IV-B Acquisitions, L.P.
|
||||
By:
|
EnCap
IV-B Acquisitions GP, LLC, its general partner
|
|||
By:
|
EnCap
Energy Capital Fund IV-B, L.P.,
|
|||
its
sole member
|
||||
By:
|
EnCap
Equity Fund IV GP, L.P., its general partner
|
|||
By:
|
EnCap
Investments L.P., its general partner
|
|||
By:
|
EnCap
Investments GP, L.L.C., its general partner
|
|||
By:
|
/s/
Xxxxx X. Xxxxxx
|
|||
Xxxxx
X. Xxxxxx
|
||||
Title:
|
Senior
Managing Director
|
|||
EnCap
IV-B Acquisitions GP, LLC
|
||||
By:
|
EnCap
Energy Capital Fund IV-B, L.P.,
|
|||
its
sole member
|
||||
By:
|
EnCap
Equity Fund IV GP, L.P., its general partner
|
|||
By:
|
EnCap
Investments L.P., its general partner
|
|||
By:
|
EnCap
Investments GP, L.L.C., its general partner
|
|||
By:
|
/s/
Xxxxx X. Xxxxxx
|
|||
Xxxxx
X. Xxxxxx
|
||||
Title:
|
Senior
Managing Director
|
EnCap
Energy Capital Fund IV-B, L.P.
|
||||
By:
|
EnCap
Equity Fund IV GP, L.P., its general partner
|
|||
By:
|
EnCap
Investments L.P., its general partner
|
|||
By:
|
EnCap
Investments GP, L.L.C., its general partner
|
|||
By:
|
/s/
Xxxxx X. Xxxxxx
|
|||
Xxxxx
X. Xxxxxx
|
||||
Title:
|
Senior
Managing Director
|
|||
EnCap
Equity Fund IV GP, L.P.
|
||||
By:
|
EnCap
Investments L.P., its general partner
|
|||
By:
|
EnCap
Investments GP, L.L.C., its general partner
|
|||
By:
|
/s/
Xxxxx X. Xxxxxx
|
|||
Xxxxx
X. Xxxxxx
|
||||
Title:
|
Senior
Managing Director
|
|||
EnCap
Investments L.P.
|
||||
By:
|
EnCap
Investments GP, L.L.C., its general partner
|
|||
By:
|
/s/
Xxxxx X. Xxxxxx
|
|||
|
Xxxxx X. Xxxxxx | |||
Title:
|
Senior
Managing Director
|
|||
EnCap
Investments GP, L.L.C.
|
||||
By:
|
/s/
Xxxxx X. Xxxxxx
|
|||
Xxxxx
X. Xxxxxx
|
||||
Title:
|
Senior
Managing Director
|
|||
RNBD
GP LLC
|
||||
By:
|
/s/
Xxxxx X. Xxxxxx
|
|||
Xxxxx
X. Xxxxxx
|
||||
Title:
|
Senior
Managing Director
|
Xxxxx
X. Xxxxxx
|
|||
By:
|
/s/
Xxxxx X. Xxxxxx
|
||
Xxxxx
X. Xxxxxx
|
|||
D.
Xxxxxx Xxxxxxxx
|
|||
By:
|
/s/
D. Xxxxxx Xxxxxxxx
|
||
D.
Xxxxxx Xxxxxxxx
|
|||
Xxxx
X. Xxxxxxxx
|
|||
By:
|
/s/
Xxxx X. Xxxxxxxx
|
||
Xxxx
X. Xxxxxxxx
|
|||
Xxxxxx
X. Xxxxxx
|
|||
By:
|
/s/
Xxxxxx X. Xxxxxx
|
||
Xxxxxx
X. Xxxxxx
|