Filing search / Registration and prospectus / Horsepower Holdings, Inc.

POS AM

Horsepower Holdings, Inc.

14 Aug 08

Prospectus update (post-effective amendment)

12:00am

15-15D

Horsepower Holdings, Inc.

14 Aug 08

Suspension of duty to report

12:00am

15-15D

Horsepower Holdings, Inc.

22 Jul 08

Suspension of duty to report

12:00am

425

GW Grey Wolf Inc

9 Jul 08

Business combination disclosure

12:00am

425

Horsepower Holdings, Inc.

9 Jul 08

Business combination disclosure

12:00am

425

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8 Jul 08

Business combination disclosure

12:00am

425

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2 Jul 08

Business combination disclosure

12:00am

425

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2 Jul 08

Business combination disclosure

12:00am

425

1yj5 jpdhufk

2 Jul 08

Business combination disclosure

12:00am

425

p5j8ai0zka m40

1 Jul 08

Business combination disclosure

12:00am

425

5yznm2l7pmbt97

27 Jun 08

Business combination disclosure

12:00am

425

o34sdq6ku3dz

27 Jun 08

Business combination disclosure

12:00am

S-4/A

tgwvyd1ngd29eqzqrf

9 Jun 08

Registration of securities issued in business combination transactions (amended)

12:00am

S-4

23uh1rm6k anju0tm

14 May 08

Registration of securities issued in business combination transactions

12:00am