Form EFFECT - Notice of Effectiveness:
SEC Accession No. 9999999995-12-000537
Accepted
2012-02-22 00:15:09
Documents
1
Effectiveness Date
2012-02-21
Registration Form
F-4

Document Format Files

Seq Description Document Type Size
1 primary_doc.html EFFECT  
1 primary_doc.xml EFFECT 3949
  Complete submission text file 9999999995-12-000537.txt   16606
Mailing Address 150 - 6TH AVENUE S.W. SUITE 4200 CALGARY A0 T2P 3Y7
Business Address 150 - 6TH AVENUE S.W. SUITE 4200 CALGARY A0 T2P 3Y7 403-716-4500
PRECISION DRILLING Corp (Filer) CIK: 0001013605 (see all company filings)

EIN.: 000000000 | State of Incorp.: A0 | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427 | Film No.: 12628623
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403) 716-4500
GREY WOLF INTERNATIONAL, INC. (Filer) CIK: 0001038891 (see all company filings)

EIN.: 760000351 | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-01 | Film No.: 12628624
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403) 716-4500
DI ENERGY, INC. (Filer) CIK: 0001038893 (see all company filings)

EIN.: 742175411 | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-03 | Film No.: 12628626
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403) 716-4500
MURCO DRILLING CORP (Filer) CIK: 0001064400 (see all company filings)

EIN.: 720512163 | State of Incorp.: DE | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-15 | Film No.: 12628632

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403) 716-4500
Precision Drilling Co LP (Filer) CIK: 0001243343 (see all company filings)

EIN.: 760590999 | State of Incorp.: TX | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-14 | Film No.: 12628641
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403) 716-4500
Precision Drilling LLC (Filer) CIK: 0001243345 (see all company filings)

EIN.: 721433406 | State of Incorp.: LA | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-12 | Film No.: 12628639

Mailing Address 800, 525-8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403) 716-4500
Precision Drilling Holdings Co (Filer) CIK: 0001243347 (see all company filings)

EIN.: 741987143 | State of Incorp.: NV | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-13 | Film No.: 12628640

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (413) 716-4500
DI/PERFENSA INC. (Filer) CIK: 0001243350 (see all company filings)

EIN.: 760378440 | State of Incorp.: TX | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-02 | Film No.: 12628625

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403)716-4500
Grey Wolf Supply Inc. (Filer) CIK: 0001517999 (see all company filings)

EIN.: 270185992 | State of Incorp.: TX | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-18 | Film No.: 12628635

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403)716-4500
Precision Completion & Production Services Ltd. (Filer) CIK: 0001518003 (see all company filings)

EIN.: 980679637 | State of Incorp.: DE | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-11 | Film No.: 12628638

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403)716-4500
Precision Directional Services, Inc. (Filer) CIK: 0001518005 (see all company filings)

EIN.: 450603611 | State of Incorp.: TX | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-17 | Film No.: 12628634

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403)716-4500
Precision Drilling, Inc. (Filer) CIK: 0001518023 (see all company filings)

EIN.: 264435759 | State of Incorp.: DE | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-16 | Film No.: 12628633

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403)716-4500
Precision Drilling (US) Corp (Filer) CIK: 0001518024 (see all company filings)

EIN.: 263638348 | State of Incorp.: TX | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-09 | Film No.: 12628636

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1 (403)716-4500
Precision Oilfield Personnel Services Ltd. (Filer) CIK: 0001518141 (see all company filings)

EIN.: 000000000 | State of Incorp.: A0 | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-08 | Film No.: 12628631

Mailing Address 800, 525-8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 800, 525-8TH AVENUE S.W. CALGARY A0 T2P 1G1 (403)716-4500
Precision Limited Partnership (Filer) CIK: 0001518144 (see all company filings)

EIN.: 000000000 | State of Incorp.: A0 | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-07 | Film No.: 12628630

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1 (403)716-4500
Grey Wolf International Drilling Corp (Filer) CIK: 0001518146 (see all company filings)

EIN.: 000000000 | State of Incorp.: Z4 | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-06 | Film No.: 12628629

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1 (403)716-4500
Precision Drilling Canada Limited Partnership (Filer) CIK: 0001518149 (see all company filings)

EIN.: 000000000 | State of Incorp.: A0 | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-05 | Film No.: 12628628

Mailing Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1
Business Address 800, 525 - 8TH AVENUE S.W. CALGARY A0 T2P 1G1 (403)716-4500
Precision Diversified Oilfield Services Corp. (Filer) CIK: 0001518150 (see all company filings)

EIN.: 000000000 | State of Incorp.: A0 | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-04 | Film No.: 12628627

Mailing Address 800, 525 - 8TH AVENUE, S.W. CALGARY A0 T2P 1G1
Business Address 800, 525 - 8TH AVENUE, S.W. CALGARY A0 T2P 1G1 (403) 716-4500
Precision Directional Services Ltd. (Filer) CIK: 0001539284 (see all company filings)

EIN.: 000000000 | State of Incorp.: A0 | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-179427-10 | Film No.: 12628637