Form EFFECT - Notice of Effectiveness:
SEC Accession No. 9999999995-11-001575
Accepted
2011-05-18 00:16:01
Documents
1
Effectiveness Date
2011-05-17
Registration Form
F-4

Document Format Files

Seq Description Document Type Size
1 primary_doc.html EFFECT  
1 primary_doc.xml EFFECT 3771
  Complete submission text file 9999999995-11-001575.txt   15763
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.: 333-173926 | Film No.: 11853392
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-05 | Film No.: 11853403
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-07 | Film No.: 11853405
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-04 | Film No.: 11853402

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-03 | Film No.: 11853401
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-01 | Film No.: 11853394

Mailing Address 4200, 150-6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-02 | Film No.: 11853400

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-06 | Film No.: 11853404

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-14 | Film No.: 11853384

Mailing Address 4200,150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-13 | Film No.: 11853380

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-12 | Film No.: 11853410

Mailing Address 4200,150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
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.: 333-173926-11 | Film No.: 11853409

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
Business Address 10350 RICHMOND AVENUE, SUITE 700 HOUSTON TX 77042 (403)716-4500
Precision Drilling Oilfield Services Corp (Filer) CIK: 0001518024 (see all company filings)

EIN.: 263638348 | State of Incorp.: TX | Fiscal Year End: 1231
Type: EFFECT | Act: 33 | File No.: 333-173926-17 | Film No.: 11853390

Mailing Address 4200, 150-6TH AVENUE S.W. CALGARY A0 T2P 3Y7
Business Address 4200, 150-6TH AVENUE S.W. CALGARY A0 T2P 3Y7 (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.: 333-173926-16 | Film No.: 11853388

Mailing Address 4200, 150-6TH AVENUE S.W. CALGARY A0 T2P 3Y7
Business Address 4200, 150-6TH AVENUE S.W. CALGARY A0 T2P 3Y7 (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.: 333-173926-15 | Film No.: 11853386

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
Business Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7 (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.: 333-173926-10 | Film No.: 11853408

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
Business Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7 (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.: 333-173926-09 | Film No.: 11853407

Mailing Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7
Business Address 4200, 150 - 6TH AVENUE S.W. CALGARY A0 T2P 3Y7 (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.: 333-173926-08 | Film No.: 11853406