SC 13G 1 teo21004a.txt SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 ______________________ SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) Tesco Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 88157K101 (CUSIP Number) December 31, 2003 (Date of event which requires filing of this statement) Check the appropriate box to designate the rule pursuant to which this Schedule 13G is filed: [ ] Rule 13d-1(b) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) (Page 1 of 12 Pages) ________________ *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes) CUSIP No. 88157K101 13G Page 2 of 12 Pages ____________________________________________________________________________ (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Centennial Energy Partners, L.P. 13-3793743 _____________________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [ ] (b) [X] _____________________________________________________________________________ (3) SEC USE ONLY _____________________________________________________________________________ (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware _____________________________________________________________________________ NUMBER OF (5) SOLE VOTING POWER -0- SHARES ______________________________________________________________ BENEFICIALLY (6) SHARED VOTING POWER 2,164,702 OWNED BY ___________________________________________________________ EACH (7) SOLE DISPOSITIVE POWER -0- REPORTING ______________________________________________________________ PERSON WITH (8) SHARED DISPOSITIVE POWER 2,164,702 _____________________________________________________________________________ (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,164,702 _____________________________________________________________________________ (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] _____________________________________________________________________________ (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.30% _____________________________________________________________________________ (12) TYPE OF REPORTING PERSON ** PN _____________________________________________________________________________ ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 88157K101 13G Page 3 of 12 Pages ____________________________________________________________________________ (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Tercentennial Energy Partners, L.P. 13-3877256 _____________________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [ ] (b) [X] _____________________________________________________________________________ (3) SEC USE ONLY _____________________________________________________________________________ (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware _____________________________________________________________________________ NUMBER OF (5) SOLE VOTING POWER -0- SHARES ______________________________________________________________ BENEFICIALLY (6) SHARED VOTING POWER 3,185,228 OWNED BY ___________________________________________________________ EACH (7) SOLE DISPOSITIVE POWER -0- REPORTING ______________________________________________________________ PERSON WITH (8) SHARED DISPOSITIVE POWER 3,185,228 _____________________________________________________________________________ (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,185,228 _____________________________________________________________________________ (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] _____________________________________________________________________________ (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 9.27% _____________________________________________________________________________ (12) TYPE OF REPORTING PERSON ** PN _____________________________________________________________________________ ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 88157K101 13G Page 4 of 12 Pages ____________________________________________________________________________ (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Quadrennial Partners, L.P. 13-3883223 _____________________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [ ] (b) [X] _____________________________________________________________________________ (3) SEC USE ONLY _____________________________________________________________________________ (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware _____________________________________________________________________________ NUMBER OF (5) SOLE VOTING POWER -0- SHARES ______________________________________________________________ BENEFICIALLY (6) SHARED VOTING POWER 805,547 OWNED BY ___________________________________________________________ EACH (7) SOLE DISPOSITIVE POWER -0- REPORTING ______________________________________________________________ PERSON WITH (8) SHARED DISPOSITIVE POWER 805,547 _____________________________________________________________________________ (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 805,547 _____________________________________________________________________________ (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] _____________________________________________________________________________ (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 2.35% _____________________________________________________________________________ (12) TYPE OF REPORTING PERSON ** PN _____________________________________________________________________________ ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 88157K101 13G Page 5 of 12 Pages ____________________________________________________________________________ (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Centennial Energy Partners V, L.P. 13-3883223 _____________________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [ ] (b) [X] _____________________________________________________________________________ (3) SEC USE ONLY _____________________________________________________________________________ (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware _____________________________________________________________________________ NUMBER OF (5) SOLE VOTING POWER -0- SHARES ______________________________________________________________ BENEFICIALLY (6) SHARED VOTING POWER 58,373 OWNED BY ___________________________________________________________ EACH (7) SOLE DISPOSITIVE POWER -0- REPORTING ______________________________________________________________ PERSON WITH (8) SHARED DISPOSITIVE POWER 58,373 _____________________________________________________________________________ (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 58,373 _____________________________________________________________________________ (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] _____________________________________________________________________________ (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) .17% _____________________________________________________________________________ (12) TYPE OF REPORTING PERSON ** PN _____________________________________________________________________________ ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 88157K101 13G Page 6 of 12 Pages ____________________________________________________________________________ (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Centennial Energy Partners, L.L.C. 13-3961810 _____________________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [ ] (b) [X] _____________________________________________________________________________ (3) SEC USE ONLY _____________________________________________________________________________ (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware _____________________________________________________________________________ NUMBER OF (5) SOLE VOTING POWER -0- SHARES ______________________________________________________________ BENEFICIALLY (6) SHARED VOTING POWER 6,213,850 OWNED BY ___________________________________________________________ EACH (7) SOLE DISPOSITIVE POWER -0- REPORTING ______________________________________________________________ PERSON WITH (8) SHARED DISPOSITIVE POWER 6,213,850 _____________________________________________________________________________ (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,213,850 _____________________________________________________________________________ (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] _____________________________________________________________________________ (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 18.09% _____________________________________________________________________________ (12) TYPE OF REPORTING PERSON ** OO _____________________________________________________________________________ ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 88157K101 13G Page 7 of 12 Pages ____________________________________________________________________________ (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Peter K. Seldin _____________________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [ ] (b) [X] _____________________________________________________________________________ (3) SEC USE ONLY _____________________________________________________________________________ (4) CITIZENSHIP OR PLACE OF ORGANIZATION United States _____________________________________________________________________________ NUMBER OF (5) SOLE VOTING POWER 16,083 SHARES ______________________________________________________________ BENEFICIALLY (6) SHARED VOTING POWER 6,213,850 OWNED BY ___________________________________________________________ EACH (7) SOLE DISPOSITIVE POWER 16,083 REPORTING ______________________________________________________________ PERSON WITH (8) SHARED DISPOSITIVE POWER 6,213,850 _____________________________________________________________________________ (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,229,933 _____________________________________________________________________________ (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] _____________________________________________________________________________ (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 18.14% _____________________________________________________________________________ (12) TYPE OF REPORTING PERSON ** IN _____________________________________________________________________________ ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 88157K101 13G Page 8 of 12 Pages Item 1(a). Name of Issuer: The name of the issuer is Tesco Corporation. Item 1(b). Address of Issuer's Principal Executive Offices: The Company's principal executive offices are located at 350 7th Avenue S.W., 36th floor, Calgary, Alberta, Canada T2P349 Item 2(a). Name of Person Filing: This statement is filed by: (i) Centennial Energy Partners, L.P.(Centennial) a Delaware limited partnership with respect to the shares of Common Stock directly owned by it; ii) Tercentennial Energy Partners, L.P. (Tercentennial) a Delaware limited partnership with respect to the shares of Common Stock directly owned by it; (iii) Quadrennial Partners, L.P. (Quadrennial) a Delaware Limited Partnership with respect to the shares of Common Stock directly owned by it; (iv) Centennial Energy Partners V, L.P. (Centennial V) a Delaware limited partnership with respect to the shares of Common Stock directly owned by it; (v) Centennial Energy Partners, L.L.C., (Energy) a limited liability company organized under the laws of the State of Delaware, with respect to the shares of Common Stock directly owned by each of the entities named in (i) through (iv) above; (v) Peter K. Seldin, with respect to the shares of Common Stock owned directly by him and by the entity named in (v). Energy does not own any shares of Common Stock directly. The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons." As of the date hereof, the Pumpkin Foundation and Mr. Joseph H. Reich no longer share voting and dispositive authority with the Reporting Persons. Item 2(b). Address of Principal Business Office or, if None, Residence: The address of the business office of each of the Reporting Persons is 900 Third Ave. Suite 1801, New York, New York 10022. Item 2(c). Citizenship: Centennial, Tercentennial, Quadrennial and Centennial V are limited partnerships organized under the laws of the State of Delaware. Energy is a limited liability company organized under the laws of the State of Delaware. Peter K. Seldin is a United States citizen. CUSIP No. 88157K101 13G Page 9 of 12 Pages Item 2(d). Title of Class of Securities: Common Stock par value $.01 per share (the "Common Stock") Item 2(e). CUSIP Number: 88157K101 Item 3. If this statement is filed pursuant to Rules 13d-1(b) or 13d-2(b) or (c), check whether the person filing is a: (a) [ ] Broker or dealer registered under Section 15 of the Act, (b) [ ] Bank as defined in Section 3(a)(6) of the Act, (c) [ ] Insurance Company as defined in Section 3(a)(19) of the Act, (d) [ ] Investment Company registered under Section 8 of the Investment Company Act of 1940, (e) [ ] Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940, (f) [ ] Employee Benefit Plan or Endowment Fund in accordance with 13d-1 (b)(1)(ii)(F), (g) [ ] Parent Holding Company or control person in accordance with Rule 13d-1 (b)(ii)(G), (h) [ ] Savings Associations as defined in Section 3(b) of the Federal Deposit Insurance Act, (i) [ ] Church Plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940, (j) [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(J). Not applicable. CUSIP No. 88157K101 13G Page 10 of 12 pages Item 4. Ownership. A. Centennial Energy Partners, L.P. (a) Amount beneficially owned: 2,164,702 (b) Percent of class: 6.30% The percentages used herein and in the rest of Item 4 are calculated based upon 34,343,000 shares of Common Stock outstanding as reported by the Company as of February 10, 2004. This information was reported on the Company's web page. (c)(i) Sole power to vote or direct the vote: -0- (ii) Shared power to vote or direct the vote: 2,164,702 (iii) Sole power to dispose or direct the disposition: -0- (iv) Shared power to dispose or direct the disposition: 2,164,702 B. Tercentennial Energy Partners, L.P. (a) Amount beneficially owned: 3,185,228 (b) Percent of class: 9.27% (c)(i) Sole power to vote or direct the vote: -0- (ii) Shared power to vote or direct the vote: 3,185,228 (iii) Sole power to dispose or direct the disposition: -0- (iv) Shared power to dispose or direct the disposition: 3,185,228 C. Quadrennial Partners, L.P. (a) Amount beneficially owned: 805,547 (b) Percent of class: 2.35% (c)(i) Sole power to vote or direct the vote: -0- (ii) Shared power to vote or direct the vote: 805,547 (iii) Sole power to dispose or direct the disposition: -0- (iv) Shared power to dispose or direct the disposition: 805,547 D. Centennial Energy Partners V, L.P. (a) Amount beneficially owned: 58,373 (b) Percent of class: .17%% (c)(i) Sole power to vote or direct the vote: -0- (ii) Shared power to vote or direct the vote: 58,373 (iii) Sole power to dispose or direct the disposition: -0- (iv) Shared power to dispose or direct the disposition: 58,373 E. Centennial Energy Partners, L.L.C. (a) Amount beneficially owned: 6,213,850 (b) Percent of class: 18.09% (c)(i) Sole power to vote or direct the vote: -0- (ii) Shared power to vote or direct the vote: 6,213,850, (iii) Sole power to dispose or direct the disposition: -0- (iv) Shared power to dispose or direct the disposition: 6,213,850 F. Peter K. Seldin (a) Amount beneficially owned: 6,229,933 (b) Percent of class: 18.14% (c)(i) Sole power to vote or direct the vote: 16,083 (ii) Shared power to vote or direct the vote: 6,213,850 (iii) Sole power to dispose or direct the disposition: 16,083 (iv) Shared power to dispose or direct the disposition: 6,213,850 CUSIP No. 88157K101 13G Page 11 of 12 pages Item 5. Ownership of Five Percent or Less of a Class. Not applicable. Item 6. Ownership of More than Five Percent on Behalf of Another Person. Energy, the general partner of Centennial, Tercentennial and Quadrennial has the power to dispose of and the power to vote the shares of Common Stock beneficially owned by each of the foregoing. Peter K. Seldin is the Managing Member of Energy, and accordingly, has the power to vote and dispose of the Common Stock beneficially held by Energy. Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company. Not applicable. Item 8. Identification and Classification of Members of the Group. Not applicable. Item 9. Notice of Dissolution of Group. Not applicable. Item 10. Certification. Each of the Reporting Persons hereby makes the following certification: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. CUSIP No. 88157K101 13G Page 12 of 12 SIGNATURES After reasonable inquiry and to the best of our knowledge and belief, the undersigned certify that the information set forth in this statement is true, complete and correct. DATED: February 10, 2004 Centennial Energy Partners, L.P. Centennial Energy Partners, L.L.C. By: /s/ Peter K. Seldin By: /s/ Peter K. Seldin Peter K. Seldin Managing Member Centennial Energy Partners, L.L.C. General Partner Tercentennial Energy Partners, L.P. By: /s/ Peter K. Seldin Peter K. Seldin By: /s/ Peter K. Seldin Peter K. Seldin Centennial Energy Partners, L.L.C. General Partner Quadrennial Partners, L.P. By: /s/ Peter K. Seldin Peter K. Seldin Centennial Energy Partners, L.L.C. General Partner Centennial Energy Partners V, L.P. By: /s/ Peter K. Seldin Peter K. Seldin Centennial Energy Partners, L.L.C. General Partner