**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

 

**FORM 10-K/A**

**(Amendment No. 1)**

 

**(Mark One)**

 

**x****      ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

 

**For the fiscal year ended December 31, 2013**

 

**o****         TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

 

**For the transition period from                                to                               **

 

**Commission File Number 001-32657**

 

**NABORS INDUSTRIES LTD.**

(Exact name of registrant as specified in its charter)

 

| **Bermuda**

**Crown House Second Floor   4 Par-la-Ville Road   Hamilton, HM08   Bermuda**                 | ** ** | **980363970**(I.R.S. Employer Identification No.)**N/A**(Zip Code) |
|------------------------------------------------------------------------------------------------------------|------------|--------------------------------------------------------------------|
| (State or Other Jurisdiction of

Incorporation or Organization)   (Address of principal executive offices) | ** ** | ** **                                                         |

 

 

**(441) 292-1510**

(Registrant’s telephone number, including area code)

 

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

 

| **Title   of each class**                | ** ** | **Name   of each exchange on which registered** |
|------------------------------------------|------------|-------------------------------------------------|
| Common shares, $.001 par value per share |       | New York Stock Exchange                         |

 

Securities registered pursuant to Section 12(g) of the Securities Exchange Act of 1934:

**None.**

 

Indicate by check mark whether the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  YES x  NO o

 

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  YES o  NO x

 

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  YES x  NO o

 

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to file such reports).  YES x  NO o

 

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. x

 

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See definition of “large accelerated filer” , “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. 

 

| Large   Accelerated Filer x |   | Accelerated Filer o |   | Non-accelerated Filer o |   | Smaller Reporting Company o |
|-----------------------------|--------|---------------------|--------|-------------------------|--------|-----------------------------|

 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  YES o  NO x

 

The aggregate market value of the 253,104,759 common shares held by non-affiliates of the registrant outstanding as of the last business day of our most recently completed second fiscal quarter, June 28, 2013, based on the closing price of our common shares as of such date of $15.31 per share as reported on the New York Stock Exchange, was $3,875,033,860. Common shares held by each officer and director and by each person who owns 5% or more of the outstanding common shares have been excluded in that such persons may be deemed affiliates. This determination of affiliate status is not necessarily a conclusive determination for other purposes.

 

The number of common shares outstanding as of February 24, 2014 was 296,508,410.

 

**DOCUMENTS INCORPORATED BY REFERENCE (to the extent indicated herein)**

** **

Specified portions of the definitive Proxy

Statement to be distributed in connection with our 2014 Annual General Meeting of Shareholders (Part III).

 

 

 

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**NABORS INDUSTRIES LTD.**

**Form 10-K/A**

**For the Year Ended December 31, 2013**

**Explanatory Note**

** **

This Amendment No.1 on Form 10-K/A is being filed to amend our Annual Report on Form 10-K for the year ended December 31, 2013, originally filed with the Securities and Exchange Commission on March 3, 2014 (the “Original Filing”). We are filing this amendment to update the separate audited financial statements as previously filed in our Form 10-K/A with the Securities and Exchange Commission on April 1, 2013 of Sabine Oil and Gas LLC (“Sabine”), a former non-consolidated subsidiary for which we sold our equity interest in December 2012.  Sabine was a significant subsidiary during the years 2012 and 2011, and we, therefore, presented Sabine’s 2012 and 2011 separate audited financial statements in our previously filed Form 10-K pursuant to Regulation S-X, Rule 3-09, “Separate financial statements of subsidiaries not consolidated and 50 percent or less owned persons.”  Sabine has restated their financial statements for the years ended December 31, 2012 and 2011, and although Sabine is no longer a significant subsidiary, this Form 10-K/A is being filed to present the restated financial statements for the historical periods.

 

Except as described above, this Amendment No. 1 does not amend any information set forth in the Original Filing and we have not updated disclosures contained therein to reflect any events that occurred on a date subsequent to the date of the Original Filing.

 

2

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**ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES**

 

(a)     The following documents are filed as part of this report:

 

(1)           Financial Statements

 
| ** **                                                                                                                    | **Page No****.** |
|-------------------------------------------------------------------------------------------------------------------------------|-----------------------|
| Consolidated   Balance Sheets as of December 31, 2013 and 2012                                                           | *                     |
| Consolidated   Statements of Income (Loss) for the Years Ended December 31, 2013, 2012   and 2011                        | *                     |
| Consolidated Statements of Other Comprehensive   Income (Loss) for the Years Ended December 31, 2013, 2012 and 2011      | *                     |
| Consolidated   Statements of Cash Flows for the Years Ended December 31, 2013, 2012 and   2011                           | *                     |
| Consolidated   Statements of Changes in Shareholders’ Equity for the Years Ended   December 31, 2013, 2012 and 2011 | *                     |

 

(2)           Financial Statement Schedules

 
| ** **                                             | **Page No.** |
|--------------------------------------------------------|-------------------|
|                                                   |              |
| Schedule   II — Valuation and Qualifying Accounts | *                 |

 

All other supplemental schedules are omitted because of the absence of the conditions under which they are required or the required information is included in the financial statements or the related notes.

 

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*Previously filed.

 

(b) Exhibits

** **
| **Exhibit No.** | ** ** | **Description**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|----------------------|------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 2.1                  |       | Agreement   and Plan of Merger among Nabors Industries, Inc., Nabors Acquisition   Corp. VIII, Nabors Industries Ltd. and Nabors US Holdings Inc.   (incorporated by reference to Annex I to the proxy statement/prospectus   included in our Registration Statement on Form S-4 (File   No. 333-76198) filed with the SEC on May 10, 2002, as amended).                                                                                                                                                                                                                                                                                                                                                                                                                            |
| 3.2                  |       | Amended   and Restated Bye-Laws of Nabors Industries Ltd. (incorporated by reference to   Exhibit 3.2 to our Form 10-Q (File No. 001-32657) filed with   the SEC on August 3, 2012).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| 4.1                  |       | Indenture,   dated February 20, 2008, among Nabors Industries, Inc., Nabors   Industries Ltd. and Wells Fargo Bank, National Association, as trustee, with   respect to Nabors Industries, Inc.’s 6.15% Senior Notes due 2018   (including form of 6.15% Senior Note due 2018) (incorporated by reference to   Exhibit 4.2 to our Form 8-K (File No. 001-32657) filed with   the SEC on February 25, 2008).                                                                                                                                                                                                                                                                                                                                                               |
| 4.2                  |       | Indenture   related to the Senior Notes due 2019, dated as of January 12, 2009,   among Nabors Industries, Inc., Nabors Industries Ltd. and Wells Fargo   Bank, National Association, as trustee, with respect to Nabors   Industries, Inc.’s 9.25% Senior Notes due 2019 (including form of 9.25%   Senior Note due 2019) (incorporated by reference to Exhibit 4.2 to our   Form 8-K (File No. 001-32657) filed with the SEC on   January 14, 2009).                                                                                                                                                                                                                                                                                                                    |
| 4.3                  |       | Indenture,   dated as of September 14, 2010, among Nabors Industries, Inc.,   Nabors Industries Ltd., Wilmington Trust Company, as trustee and Citibank,   N.A. as securities administrator, with respect to Nabors   Industries, Inc.’s 5.0% Senior Notes due 2020 (including form of 5.0%   Senior Note due 2020) (incorporated by reference to Exhibit 4.2 to our   Form 8-K (File No. 001-32657) filed with the SEC on   September 15, 2010).                                                                                                                                                                                                                                                                                                                         |
| 4.4                  |       | Indenture,   dated as of August 23, 2011, among Nabors Industries, Inc., Nabors   Industries Ltd., Wilmington Trust, National Association, as trustee and   Citibank, N.A. as securities administrator, with respect to Nabors   Industries, Inc.’s 4.625% Senior Notes due 2021 (including form of 4.625%   Senior Note due 2021) (incorporated by reference to Exhibit 4.1 to our   Form 8-K (File No. 001-32657) filed with the SEC on August 24,   2011).                                                                                                                                                                                                                                                                                                             |
| 4.5                  |       | Rights   Agreement, dated July 16, 2012, between Nabors Industries Ltd. and   Computershare Trust Company, N.A., as Rights Agent, including the   Form of Certificate of Designations of Series A Junior   Participating Preferred Shares, the Form of Right Certificate, and the   Summary of Rights to Purchase Preferred Shares, respectively attached thereto   as Exhibits A, B and C (“Rights Agreement”) (incorporated by reference   to Exhibit 4.1 to Nabors Industries Ltd.’s Form 8-K (File   No. 001-32657) filed with the Commission on July 17, 2012).                                                                                                                                                                                  |
| 4.5(a)               |       | Amendment   No. 1, dated as of April 4, 2013, to the Rights Agreement (incorporated   by reference to Exhibit 4.2 to Amendment No. 1 to the Registration   Statement on Form 8-A (File No. 001-32657) filed with the   Commission on April 4, 2013).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| 4.5(b)               |       | Amendment   No. 2, dated as of July 15, 2013, to the Rights Agreement   (incorporated by reference to Exhibit 4.3 to Amendment No. 2 to the   Registration Statement on Form 8-A/A (File No. 001-32657) filed   with the Commission on July 15, 2013).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 4.6                  |       | Purchase   Agreement, dated September 4, 2013, among Nabors Industries, Inc.,   Nabors Industries Ltd., Citigroup Global Markets Inc. and   HSBC Securities (USA) Inc., Mizuho Securities USA Inc., Morgan   Stanley & Co. LLC, Merrill Lynch Pierce Fenner & Smith   Incorporated, Mitsubishi UFJ Securities (USA), Inc., PNC Capital Markets   LLC, BBVA Securities Inc., Wells Fargo Securities, LLC, SMBC Nikko   Securities America, Inc. and U.S. Bancorp Investments, Inc.,   with respect to Nabors Industries, Inc.’s 2.35% Senior Notes due 2016   and 5.1% Senior Notes due 2023 (incorporated by reference to   Exhibit 10.1 to our Form 8-K (File No. 001-32657) filed with   the SEC on September 5, 2013). |
| 4.6(a)               |       | Indenture   related to the 2.35% Senior Notes due 2016 and 5.10% Senior Notes due 2023,   dated as of September 12, 2013, among Nabors Industries, Inc. as   Issuer, Nabors Industries Ltd. as Guarantor, Wilmington Trust, National   Association as Trustee and Citibank, N.A. as Securities Administrator   (including form of 2.35% Senior Note due 2016 and form of 5.10% Senior Note   due 2023) (incorporated by reference to Exhibit 4.1 to Nabors Industries   Ltd. Form 8-K (File No. 001-32657) filed with the Commission on   September 13, 2013).                                                                                                                                                                                                                      |
| 4.6(b)               |       | Registration   Rights Agreement related to the 2.35% senior notes due 2016, dated as of   September 12, 2013, among Nabors Industries, Inc. as Issuer, Nabors   Industries Ltd. as Guarantor and Citigroup Global Markets Inc.,   HSBC Securities (USA) Inc. and Mizuho Securities USA Inc. as   Representatives of the Initial Purchasers (incorporated by reference to   Exhibit 4.2 to Nabors Industries Ltd. Form 8-K (File No. 001-32657)   filed with the Commission on September 13, 2013).                                                                                                                                                                                                                                                                             |
| 4.6(c)               |       | Registration   Rights Agreement related to the 5.10% senior note due 2023, dated as of   September 12, 2013, among Nabors Industries, Inc. as Issuer, Nabors   Industries Ltd. as Guarantor, and Citigroup Global Markets Inc.,   HSBC Securities (USA) Inc. and Mizuho Securities USA Inc. as   Representatives of the Initial Purchasers (incorporated by reference to   Exhibit 4.1 to Nabors Industries Ltd. Form 8-K (File   No. 001-32657) filed with the Commission on September 13, 2013).                                                                                                                                                                                                                                                                             |

 

3

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| **Exhibit No.** | ** ** | **Description**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|----------------------|------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 10.1(+)              |       | Termination   Agreement by and among Nabors Industries Ltd., Nabors Industries, Inc.   and Anthony G. Petrello effective December 31, 2012 and relating to   Mr. Petrello’s Employment Agreement dated effective as of April 1,   2009 (incorporated by reference to Exhibit 99.2 to Nabors Industries   Ltd.’s Form 8-K (File No. 001-32657) filed with the Commission on   March 11, 2013).                                                                                                                                                           |
| 10.1(a)(+)           |       | Stock   Bonus Agreement dated March 7, 2013 among Nabors Industries Ltd., Nabors   Industries, Inc. and Anthony G. Petrello (incorporated by reference   to Exhibit 99.3 to Nabors Industries Ltd.’s Form 8-K (File   No. 001-32657) filed with the Commission on March 11, 2013).                                                                                                                                                                                                                                                                                |
| 10.2(+)              |       | Nabors   Industries Ltd. Amended and Restated 2003 Employee Stock Plan (incorporated   by reference to Exhibit A of our Revised Definitive Proxy Statement on   Schedule 14A (File No. 001-32657) filed with the SEC on May 4,   2006) (incorporated by reference to Exhibit 99.1 to our Form S-8   filed with the SEC on November 12, 2008).                                                                                                                                                                                                                               |
| 10.2(a)(+)           |       | Form of   Stock Option Agreement—Others, pursuant to the 2003 Employee Stock Plan   (incorporated by reference to Exhibit 10.6(d) to our Form 10-K   (File No. 001-32657) filed with the SEC on March 1, 2013)(+).                                                                                                                                                                                                                                                                                                                                                          |
| 10.2(b)(+)           |       | Form of   Restricted Stock Agreement—Others, pursuant to the 2003 Employee Stock Plan   (incorporated by reference to Exhibit 10.6(d) to our Form 10-K   (File No. 001-32657) filed with the SEC on March 1, 2013)(+).                                                                                                                                                                                                                                                                                                                                                      |
| 10.3                 |       | Form of   Indemnification Agreement entered into between Nabors Industries Ltd. and the   directors and executive officers (incorporated by reference to   Exhibit 10.28 to our Form 10-K (File No. 000-49887) filed with   the SEC on March 31, 2003).                                                                                                                                                                                                                                                                                                                               |
| 10.4(+)              |       | Nabors   Industries Ltd. Amended and Restated 2003 Employee Stock Plan (incorporated   by reference to Exhibit A of our Revised Definitive Proxy Statement on   Schedule 14A (File No. 001-32657) filed with the SEC on May 4,   2006) (incorporated by reference to Exhibit 99.1 to our Form S-8   filed with the SEC on November 12, 2008).                                                                                                                                                                                                                               |
| 10.4(a)(+)           |       | Form of   Stock Option Agreement—Others, pursuant to the 2003 Employee Stock Plan   (incorporated by reference to Exhibit 10.6(d) to Nabors Industries   Ltd.’s Form 10-K (File No. 001-32657) filed with the Commission on   March 1, 2013).                                                                                                                                                                                                                                                                                                                          |
| 10.4(b)(+)           |       | Form of   Restricted Stock Agreement—Others, pursuant to the 2003 Employee Stock Plan   (incorporated by reference to Exhibit 10.6(e) to Nabors Industries   Ltd.’s Form 10-K (File No. 001-32657) filed with the Commission on   March 1, 2013).                                                                                                                                                                                                                                                                                                                      |
| 10.5(+)              |       | 1996   Employee Stock Plan (incorporated by reference to Nabors   Industries, Inc.’s Registration Statement on Form S-8 (File   No. 333-11313) filed with the SEC on September 3, 1996).                                                                                                                                                                                                                                                                                                                                                                                              |
| 10.6(+)              |       | Nabors   Industries, Inc. 1998 Employee Stock Plan (incorporated by reference to   Exhibit 10.19 to Nabors Industries, Inc.’s Form 10-K (File   No. 1-9245) filed with the SEC on March 31, 1999).                                                                                                                                                                                                                                                                                                                                                                          |
| 10.7(+)              |       | Amended   and Restated 1999 Stock Option Plan for Non-Employee Directors (amended on   May 2, 2003) (incorporated by reference to Exhibit 10.29 to our   Form 10-Q (File No. 000-49887) filed with the SEC on May 12,   2003).                                                                                                                                                                                                                                                                                                                                                        |
| 10.8(+)              |       | Nabors   Industries Ltd. 2013 Stock Plan (incorporated by reference to Appendix B   of Nabors Industries Ltd.’s Definitive Proxy Statement on Schedule 14A   (File No. 001-32657) filed with the Commission on April 30, 2013).                                                                                                                                                                                                                                                                                                                                                       |
| 10.8(a)(+)           |       | Form of   Stock Option Agreement—Others, pursuant to the 2013 Stock Plan(+).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.8(b)(+)           |       | Form of   Restricted Stock Agreement—Others, pursuant to the 2013 Stock Plan(+).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| 10.8(c)(+)           |       | Form of   Restricted Stock Agreement—Directors, pursuant to the 2013 Stock Plan(+).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| 10.8(d)(+)           |       | Form of   TSR Stock Grant Agreement—Anthony G. Petrello, pursuant to the 2013   Stock Plan(+).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| 10.8(e)(+)           |       | Form of   Nabors Industries Ltd. Restricted Stock Agreement—Anthony G. Petrello,   pursuant to the 2013 Stock Plan(+).                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| 10.8(f)(+)           |       | Form of   Nabors Corporate Services, Inc. Restricted Stock   Agreement—Anthony G. Petrello, pursuant to the 2013 Stock Plan(+).                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| 10.9                 |       | Credit   Agreement, dated as of November 29, 2012, among Nabors   Industries, Inc. as US borrower, Nabors Canada as Canadian borrower,   Nabors Industries Ltd. as guarantor, HSBC Bank Canada as Canadian lender, the   other lenders party thereto, Mizuho Corporate Bank, Ltd. and HSBC Bank   USA, N.A. as documentation agents, HSBC Bank USA, N.A. as syndication agent   and Citibank, N.A. as administrative agent for the US lenders (incorporated   by reference to Exhibit 10.1 to our Form 8-K (File No. 001-32657)   filed with the SEC on November 30, 2012). |
| 10.10                |       | Agreement,   dated as of April 4, 2013, by and between Nabors Industries Ltd. and PHM   Investment (USD) 1 S.à.r.l. (incorporated by reference to Exhibit 10.1   to the Form 8-K (File No. 001-32657) filed with the Commission on   April 4, 2013).                                                                                                                                                                                                                                                                                                                             |
| 12                   |       | Computation   of Ratios.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| 14                   |       | Code   of Business Conduct (incorporated by reference to Exhibit 14 to our   Form 10-K (File No. 000-49887) filed with the SEC on March 15,   2004).                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| 21                   |       | Significant   Subsidiaries.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| 23.1                 |       | Consent   of Independent Registered Public Accounting Firm—PricewaterhouseCoopers   LLP—Houston.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| 23.2                 |       | Consent   of Independent Auditors—Deloitte & Touche LLP—Houston — Sabine Oil   and Gas LLC—2012*                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| 23.3                 |       | Consent   of Independent Registered Public Accounting Firm — PricewaterhouseCoopers LLP   — Houston — Sabine Oil and Gas LLC—2011*                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 31.1                 |       | Rule 13a-14(a)/15d-14(a) Certification   of Anthony G. Petrello, Chairman, President and Chief Executive Officer*                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| 31.2                 |       | Rule 13a-14(a)/15d-14(a) Certification   of R. Clark Wood, Principal Accounting and Financial Officer**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 31.2(a)              |       | Rule 13a-14(a)/15d-14(a) Certification   of William Restrepo, Chief Financial Officer*                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| 32.1                 |       | Certifications   required by Rule 13a-14(b) or Rule 15d-14(b) and   Section 1350 of Chapter 63 of Title 18 of the United States   Code (18 U.S.C. 1350), executed by Anthony G. Petrello, Deputy Chairman,   President and Chief Executive Officer and R. Clark Wood, Principal   Accounting and Financial Officer.**                                                                                                                                                                                                                                             |
| 32.1(a)              |       | Certifications   required by Rule 13a-14(b) or Rule 15d-14(b) and   Section 1350 of Chapter 63 of Title 18 of the United States   Code (18 U.S.C. 1350), executed by Anthony G. Petrello, Deputy Chairman,   President and Chief Executive Officer and William Restrepo, Chief Financial   Officer (furnished herewith).*                                                                                                                                                                                                                                              |
| 99.1                 |       | Financial   Statements and Notes for Sabine Oil and Gas LLC**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| 101.INS              |       | XBRL   Instance Document**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| 101.SCH              |       | XBRL   Schema Document**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| 101.CAL              |       | XBRL   Calculation Linkbase Document**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 101.LAB              |       | XBRL   Label Linkbase Document**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| 101.PRE              |       | XBRL   Presentation Linkbase Document**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| 101.DEF              |       | XBRL   Definition Linkbase Document**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |

 

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*                                         Filed herewith.

 

**                                  Previously filed

 

(+)                                 Management contract or compensatory plan or arrangement.

 

4

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**SIGNATURES**

 

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 
|   | NABORS INDUSTRIES LTD.      |
|--------|-----------------------------|
|   |                        |
|   |                        | By: | /s/ William Restrepo |
|   |                        |   | William Restrepo |
|   |                        |   | Chief Financial   Officer |
|   |                        |   |   |
|   |                        |   |   |
|   | Date:   March 31, 2014 |

 

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