OKS / ONEOK Partners, L.P. - Документы SEC, Годовой отчет, Доверенное заявление

As filed with the Securities and Exchange Commission on August 6, 2025

POSASR As filed with the Securities and Exchange Commission on August 6, 2025 Registration No.

Security Type

Calculation of Filing Fee Tables S-3 ONEOK INC /NEW/ Table 1: Newly Registered and Carry Forward Securities ☐Not Applicable Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt Debt Securities 457(r) 0.

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables S-3 ONEOK INC /NEW/ Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt Debt Securities 457(r) 0.

As filed with the Securities and Exchange Commission on September 10, 2024

As filed with the Securities and Exchange Commission on September 10, 2024 Registration No.

609 Main Street Houston, TX 77002 United States +1 713 836 3600

Exhibit 5.3 609 Main Street Houston, TX 77002 United States +1 713 836 3600 www.kirkland.com Facsimile: +1 713 836 3601 September 10, 2024 ONEOK, Inc. 100 West Fifth Street Tulsa, Oklahoma 74103 Re: ONEOK, Inc. Post-Effective Amendment No. 1 to Registration Statement on Form S-3ASR We are issuing this opinion in our capacity as special legal counsel to ONEOK, Inc., an Oklahoma corporation (the “Co

Statement of Eligibility of the Trustee under the Trust Indenture Act of 1939 on Form T-1 with respect to the Senior Indenture (incorporated by reference to Exhibit 25.1 to the Company’s Registration Statement on Form S-3 filed on June 20, 2023).

EX-25.1 Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-1821036

As filed with the Securities and Exchange Commission on June 20, 2023

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on June 20, 2023 Registration No.

Calculation of Filing Fee Tables Form S-3 (Form Type) ONEOK, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule A

EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) ONEOK, Inc.

ONEOK, INC. SUBORDINATED DEBT SECURITIES Dated as of [ ] U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION

Exhibit 4.33 ONEOK, INC. SUBORDINATED DEBT SECURITIES INDENTURE Dated as of [ ] U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION TRUSTEE Reconciliation and tie between Trust Indenture Act of 1939 and Indenture, dated as of [ ] Trust Indenture Act Section Indenture Section Section 310 (a)(1) 608 (a)(2) 608 (a)(5) 608 (b) 607, 609 Section 311 (a) 613 (b) 613 Section 312 (c) 701 Section 313 (a) 702 (c)

Statement of Eligibility of the Trustee under the Trust Indenture Act of 1939 on Form T-1 with respect to the Subordinated Indenture (incorporated by reference to Exhibit 25.2 to the Company’s Registration Statement on Form S-3 filed on June 20, 2023).

EX-25.2 Exhibit 25.2 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-1821036

Calculation of Filing Fee Table (Form Type) ONEOK, INC. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Pr

Exhibit 107 Calculation of Filing Fee Table 424(b)(5)(1) (Form Type) ONEOK, INC. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Newly Registered Securities Fees to Be Paid

$750,000,000 ONEOK, Inc. $750,000,000 6.100% Notes due 2032

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-239348 PROSPECTUS SUPPLEMENT (To Prospectus Dated June 22, 2020) $750,000,000 ONEOK, Inc. $750,000,000 6.100% Notes due 2032 We are offering $750,000,000 aggregate principal amount of our 6.100% notes due 2032 (the “notes”). The notes will bear interest at the rate of 6.100% per year and will mature on November 15, 2

SUBJECT TO COMPLETION, DATED NOVEMBER 15, 2022

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-239348 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying base prospectus are not an offer to sell the securities described herein and they are not soliciting any offers to buy such securities in any jurisdiction wh

Statement of Eligibility of the Trustee under the Trust Indenture Act of 1939 on Form T-1 with respect to the Subordinated Indenture.

EX-25.2 7 d945533dex252.htm EX-25.2 Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK NATIONAL ASSOCIATION (Exact name of Trustee as specified

Statement of Eligibility of the Trustee under the Trust Indenture Act of 1939 on Form T-1 with respect to the Senior Indenture.

EX-25.1 Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 31-0841368 I

- S-3ASR

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on June 22, 2020 Registration No.

Form of Subordinated Indenture.

EX-4.23 2 d945533dex423.htm EX-4.23 Exhibit 4.23 ONEOK, INC. SUBORDINATED DEBT SECURITIES INDENTURE Dated as of [ ] U.S. BANK NATIONAL ASSOCIATION TRUSTEE Reconciliation and tie between Trust Indenture Act of 1939 and Indenture, dated as of [ ] Trust Indenture Act Section Indenture Section Section 310 (a)(1) 608 (a)(2) 608 (a)(5) 608 (b) 607, 609 Section 311 (a) 613 (b) 613 Section 312 (c) 701 Sec

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Maximum Offering Price per Unit Maximum Aggregate Offering Price Amount of Registration Fee(1) 5.850% Notes due 2026 $600,000,000 99.943% $599,

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No.

SUBJECT TO COMPLETION, DATED MAY 4, 2020

424B5 1 d899396d424b5.htm 424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-219186 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying base prospectus are not an offer to sell the securities described herein and they are not soliciting any offers to buy such securities

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Maximum Offering Price per Unit Maximum Aggregate Offering Price Amount of Registration Fee(1) 2.200% Notes due 2025 $400,000,000 99.922% $399,

424B5 1 d853057d424b5.htm 424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-219186 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Maximum Offering Price per Unit Maximum Aggregate Offering Price Amount of Registration Fee(1) 2.200% Notes due 2025 $400,000,000 99.922% $399,688,000 $51,879.50 Guarantees

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Maximum Offering Price per Unit Maximum Aggregate Offering Price Amount of Registration Fee(1) 4.500% Notes due 2050 $100,000,000 100.000% $100

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No.

SUBJECT TO COMPLETION, DATED MARCH 5, 2020

424B5 1 d853057d424b5.htm 424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-219186 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying base prospectus are not an offer to sell the securities described herein and they are not soliciting any offers to buy such securities

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Amount to be Registered Maximum Offering Price Per Security Maximum Aggregate Offering Price Amount of Registration Fee (1) 2.75% Notes due 2024 $500,000,000 99.807% $499,035,0

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-219186 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Amount to be Registered Maximum Offering Price Per Security Maximum Aggregate Offering Price Amount of Registration Fee (1) 2.75% Notes due 2024 $500,000,000 99.807% $499,035,000 $60,483.05 Guarantees of 2.75% Notes due 2024 (2) (2) (2) (2) 3.40%

SUBJECT TO COMPLETION, DATED AUGUST 12, 2019

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-219186 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying base prospectus are not an offer to sell these securities and they are not soliciting any offers to buy these securities in any jurisdiction where the offer or s

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Amount to be Registered Maximum Offering Price Per Security Maximum Aggregate Offering Price Amount of Registration Fee (1) 4.35% Notes due 2029 $700,000,000 99.687% $697,809,0

Prospectus Supplement Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

SUBJECT TO COMPLETION, DATED MARCH 11, 2019

Preliminary Prospectus Supplement Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) 4.55% Notes due 2028 $800,000,000 $99,600 Guarantees of 4.55% Notes due 2028 (2) (2) 5.20% Notes due 20

Preliminary Prospectus Supplement Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

SUBJECT TO COMPLETION, DATED JUNE 19, 2018

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-219186 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying base prospectus are not an offer to sell these securities and they are not soliciting any offers to buy these securities in any jurisdiction where the offer or sale is

ONEOK Partners 15-12B

15-12B UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 001-12202 333-219186-01 333-219186-02 ONEOK Partners, L.P. (Exact nam

ONEOK Partners 15-15D

15-15D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 001-12202 333-219186-01 333-219186-02 ONEOK Partners, L.P. (Exact nam

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) 4.000% Notes due 2027 $500,000,000 $57,950 Guarantees of 4.000% Notes due 2027 (2) (2) 4.950% Notes due

424B5 1 d419577d424b5.htm FINAL PROSPECTUS SUPPLEMENT Table of Contents Filed pursuant to Rule 424(b)(5) SEC File No. 333-219186 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) 4.000% Notes due 2027 $500,000,000 $57,950 Guarantees of 4.000% Notes due 2027 (2) (2) 4.950% Notes due 2047 $700,000,000 $8

SUBJECT TO COMPLETION, DATED JULY 10, 2017

424B5 1 d419577d424b5.htm PRELIMINARY PROSPECTUS SUPPLEMENT Table of Contents Filed pursuant to Rule 424(b)(5) SEC File No. 333-219186 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying base prospectus are not an offer to sell these securities and they are not soliciting any offers to buy these s

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE

Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 31-0841368 I.R.S. Em

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 31-0841368 I.R.S. Em

ONEOK Partners FORM S-3ASR

S-3ASR 1 d407018ds3asr.htm FORM S-3ASR Table of Contents As filed with the Securities and Exchange Commission on July 6, 2017 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ONEOK, Inc. (Exact name of registrant as specified in its charter) Oklahoma 100 West Fifth Street Tulsa, Oklahoma 7

ONEOK, INC. SUBORDINATED DEBT SECURITIES Dated as of [ ] U.S. BANK NATIONAL ASSOCIATION Reconciliation and tie between Trust Indenture Act of 1939 and Indenture, dated as of [ ] Trust Indenture Act Section Indenture Section Section 310 (a)(1) 608 (a)

EX-4.8 Exhibit 4.8 ONEOK, INC. SUBORDINATED DEBT SECURITIES INDENTURE Dated as of [ ] U.S. BANK NATIONAL ASSOCIATION TRUSTEE Reconciliation and tie between Trust Indenture Act of 1939 and Indenture, dated as of [ ] Trust Indenture Act Section Indenture Section Section 310 (a)(1) 608 (a)(2) 608 (a)(5) 608 (b) 607, 609 Section 311 (a) 613 (b) 613 Section 312 (c) 701 Section 313 (a) 702 (c) 702, 703

ONEOK, Inc. Computation of Ratio of Earnings to Fixed Charges Three Months Ended March 31, Years Ended December 31, (Unaudited) 2017 2016 2015 2014 2013 2012 (Thousands of dollars) Fixed charges, as defined Interest on long-term debt $ 104,109 $ 438,

EX-12.1 Exhibit 12.1 ONEOK, Inc. Computation of Ratio of Earnings to Fixed Charges Three Months Ended March 31, Years Ended December 31, (Unaudited) 2017 2016 2015 2014 2013 2012 (Thousands of dollars) Fixed charges, as defined Interest on long-term debt $ 104,109 $ 438,915 $ 432,234 $ 380,441 $ 374,520 $ 326,206 Other interest 11,584 32,385 13,330 4,127 10,397 12,045 Amortization of debt discount

ONEOK, INC. as Issuer; ONEOK PARTNERS, L.P. ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP as Guarantors; THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee FIFTH SUPPLEMENTAL INDENTURE Dated as of June 30, 2017 Relating to Debt Securities D

EX-4.2 Exhibit 4.2 ONEOK, INC. as Issuer; ONEOK PARTNERS, L.P. and ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP as Guarantors; and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee FIFTH SUPPLEMENTAL INDENTURE Dated as of June 30, 2017 to INDENTURE Relating to Debt Securities Dated as of September 24, 1998 6.50% Senior Insured Quarterly Notes due 2028 6-7/8% Debentures due 2028 FIFTH S

ONEOK, INC. as Issuer; ONEOK PARTNERS, L.P. ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP as Guarantors; U.S. BANK NATIONAL ASSOCIATION as Trustee FOURTH SUPPLEMENTAL INDENTURE Dated as of June 30, 2017 Relating to Debt Securities Dated as of Decem

EX-4.4 Exhibit 4.4 ONEOK, INC. as Issuer; ONEOK PARTNERS, L.P. and ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP as Guarantors; and U.S. BANK NATIONAL ASSOCIATION as Trustee FOURTH SUPPLEMENTAL INDENTURE Dated as of June 30, 2017 to INDENTURE Relating to Debt Securities Dated as of December 28, 2001 6.00% Notes due 2035 FOURTH SUPPLEMENTAL INDENTURE, dated as of June 30, 2017 (this ?Supplemental

Regulation FD Disclosure, Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Completion of Acquisition or Disposition of Assets, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) July 3, 2017 (Date of earliest event reported) June 30, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction of incorporation) (Com

GUARANTY AGREEMENT

EX-10.1 Exhibit 10.1 GUARANTY AGREEMENT THIS GUARANTY AGREEMENT (the ?Agreement?), dated as of June 30, 2017 is made by ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP and ONEOK PARTNERS, L.P., each a Delaware limited partnership (each a ?Guarantor? and collectively, the ?Guarantors?) in favor of CITIBANK, N.A., a national banking association, as administrative agent (the ?Administrative Agent?) f

Fifteenth Supplemental Indenture, dated as of June 30, 2017, by and among ONEOK Partners, L.P., ONEOK, Inc., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee (incorporated by reference from Exhibit 4.1 to ONEOK, Partners, L.P.’s Current Report on Form 8-K filed July 3, 2017 (File No. 1-12202)).

EX-4.1 2 d423722dex41.htm EX-4.1 Exhibit 4.1 ONEOK PARTNERS, L.P. Issuer; ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP and ONEOK, Inc. Guarantors; and WELLS FARGO BANK, N.A. Trustee FIFTEENTH SUPPLEMENTAL INDENTURE Dated as of June 30, 2017 to INDENTURE Relating to Senior Debt Securities Dated as of September 25, 2006 2.000% Senior Notes due 2017 3.200% Senior Notes due 2018 8.625% Senior Notes

ONEOK, INC. as Issuer; ONEOK PARTNERS, L.P. ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP as Guarantors; U.S. BANK NATIONAL ASSOCIATION as Trustee THIRD SUPPLEMENTAL INDENTURE Dated as of June 30, 2017 Relating to Debt Securities Dated as of Januar

EX-4.3 4 d423722dex43.htm EX-4.3 Exhibit 4.3 ONEOK, INC. as Issuer; ONEOK PARTNERS, L.P. and ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP as Guarantors; and U.S. BANK NATIONAL ASSOCIATION as Trustee THIRD SUPPLEMENTAL INDENTURE Dated as of June 30, 2017 to INDENTURE Relating to Debt Securities Dated as of January 26, 2012 4.25% Notes due 2022 7.50% Notes due 2023 THIRD SUPPLEMENTAL INDENTURE, d

GUARANTY AGREEMENT

EX-10.2 Exhibit 10.2 GUARANTY AGREEMENT THIS GUARANTY AGREEMENT (the ?Agreement?), dated as of June 30, 2017 is made by ONEOK, INC., an Oklahoma corporation (the ?Guarantor?) in favor of MIZUHO BANK, LTD., a national banking association, as administrative agent (the ?Administrative Agent?) for the several banks and other financial institutions (the ?Lenders?) from time to time party to the Term Lo

ONEOK Announces Closing of Merger Transaction ONEOK Shareholders and ONEOK Partners Unitholders Approve Transaction

EX-99.1 Exhibit 99.1 June 30, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Brad Borror 918-588-7582 ONEOK Announces Closing of Merger Transaction ONEOK Shareholders and ONEOK Partners Unitholders Approve Transaction TULSA, Okla. ? June 30, 2017 ? ONEOK, Inc. (NYSE: OKE) today announced that it has closed the acquisition of all outstanding common units of ONEOK Partners, L.P. (

OKS / ONEOK Partners, L.P. / ONEOK INC /NEW/ - SCHEDULE 13D/A (AMENDMENT NO. 4) Activist Investment

Schedule 13D/A (Amendment No. 4) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 4) ONEOK Partners, L.P. (Name of Issuer) COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS (Title of Class of Securities) 68268N103 (CUSIP Number) Eric Grimshaw Vice President, Associate General Counsel and Corporate Secr

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on July 14, 2017, pursuant to the provisions of Rule 12d2-2 (a).

ONEOK Partners POST-EFFECTIVE AMENDMENT NO.1 TO FORM S-3

As filed with the Securities and Exchange Commission on June 30, 2017 Registration No.

ONEOK Partners POST-EFFECTIVE AMENDMENT NO.1 TO FORM S-3

As filed with the Securities and Exchange Commission on June 30, 2017 Registration Nos.

Termination of a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) June 28, 2017 (Date of earliest event reported) June 23, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Empl

ONEOK Partners ESP

Document June 14, 2017 Ms. Jennifer Thompson Accounting Branch Chief Office of Consumer Products United States Securities and Exchange Commission 100 F Street NE Washington, DC 20549-0404 RE: ONEOK, Inc. Form 10-K for the year ended December 31, 2016 Filed February 28, 2017 File No. 001-13643 ONEOK Partners, L.P. Form 10-K for the year ended December 31, 2016 Filed February 28, 2017 File No. 001-1

Proxy Advisory Firms Recommend Approval of ONEOK’s and ONEOK Partners’ Proposed Merger Transaction

EX-99.1 2 d403223dex991.htm EX-99.1 Exhibit 99.1 June 22, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 Proxy Advisory Firms Recommend Approval of ONEOK’s and ONEOK Partners’ Proposed Merger Transaction TULSA, Okla. – June 22, 2017 – ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) today announced that two leading proxy advisory firms,

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) June 23, 2017 (Date of earliest event reported) June 22, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction of incorporation) (Co

Proxy Advisory Firms Recommend Approval of ONEOK’s and ONEOK Partners’ Proposed Merger Transaction

EX-99.1 2 d403223dex991.htm EX-99.1 Exhibit 99.1 June 22, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 Proxy Advisory Firms Recommend Approval of ONEOK’s and ONEOK Partners’ Proposed Merger Transaction TULSA, Okla. – June 22, 2017 – ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) today announced that two leading proxy advisory firms,

ONEOK Partners FORM 8-K (Prospectus)

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) June 23, 2017 (Date of earliest event reported) June 22, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction of incorpora

Proxy Advisory Firms Recommend Approval of ONEOK’s and ONEOK Partners’ Proposed Merger Transaction

EX-99.1 2 d403086dex991.htm EX-99.1 Exhibit 99.1 June 22, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 Proxy Advisory Firms Recommend Approval of ONEOK’s and ONEOK Partners’ Proposed Merger Transaction TULSA, Okla. – June 22, 2017 – ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) today announced that two leading proxy advisory firms,

ONEOK FORM 8-K (Prospectus)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) June 23, 2017 (Date of earliest event reported) June 22, 2017 ONEOK, INC. (Exact name of registrant as specified in its charter) Oklahoma 001-13643 73-1520922 (State or other jurisdiction of incorporation) (Commissio

Exhibit 99.1 -more- News ONEOK to Expand Infrastructure to Serve STACK Growth TULSA, Okla. – June 19, 2017 – ONEOK, Inc. (NYSE: OKE) today announced plans to expand its Mid-Continent natural gas liquids (NGL) gathering system and its existing Sterlin

EX-99.1 2 oksokemidconexpansion.htm OKS-ONEOK TO EXPAND INFRASTRUCTURE 2017 NEWS RELEASE Exhibit 99.1 -more- News ONEOK to Expand Infrastructure to Serve STACK Growth TULSA, Okla. – June 19, 2017 – ONEOK, Inc. (NYSE: OKE) today announced plans to expand its Mid-Continent natural gas liquids (NGL) gathering system and its existing Sterling III Pipeline. The expansions, which are backed by a long-te

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) June 20, 2017 (Date of earliest event reported) June 19, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Empl

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) June 12, 2017 (Date of earliest event reported) June 12, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Empl

ONEOK Partners DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14A ? 101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

ONEOK Partners DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14A ? 101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) May 26, 2017 (Date of earliest event reported) May 24, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (I

Exhibit 99.1 -more- ONEOK and ONEOK Partners Announce Organizational Changes Consolidating Key Reporting Responsibilities TULSA, Okla. – May 25, 2017 – ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) have announced organizational changes

ex991officerchangesnr Exhibit 99.1 -more- ONEOK and ONEOK Partners Announce Organizational Changes Consolidating Key Reporting Responsibilities TULSA, Okla. ? May 25, 2017 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) have announced organizational changes. Walter S. Hulse III, 53, currently executive vice president, strategic planning and corporate affairs, becomes chief financial

ONEOK Partners OKE 2017 ANNUAL MEETING OF SHAREHOLDERS NEWS RELEASE (Prospectus)

oke2017annualmeetnr Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (?OKE?) and ONEOK Partners, L.P. (?OKS?) p

ONEOK OKE 2017 ANNUAL MEETING OF SHAREHOLDERS NEWS RELEASE (Prospectus)

Filed by ONEOK, Inc. (Commission File No. 001-13643) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (“OKE”) and ONEOK Partners, L.P. (“OKS”) pursuant to the terms of an

ONEOK Partners OKE 2017 ANNUAL MEETING OF SHAREHOLDERS TRANSCRIPT (Prospectus)

oksoke2017annualmeetscri Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (?OKE?) and ONEOK Partners, L.P. (?OK

ONEOK OKE 2017 ANNUAL MEETING OF SHAREHOLDERS TRANSCRIPT (Prospectus)

Filed by ONEOK, Inc. (Commission File No. 001-13643) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (“OKE”) and ONEOK Partners, L.P. (“OKS”) pursuant to the terms of an

ONEOK Partners DEFM14A

DEFM14A 1 d317629ddefm14a.htm DEFM14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14A – 101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Co

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) May 17, 2017 (Date of earliest event reported) May 16, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Employ

Exhibit 99.1 ONEOK and ONEOK Partners Announce Upcoming Investor Conferences TULSA, Okla. – May 16, 2017 – ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will participate in the Wells Fargo “Kick the Tires” Fixed-income Conference on We

EX-99.1 2 oksupcomingconferences20.htm OKS WELLS FARGO AND MUFG CONFERENCES 2017 NR Exhibit 99.1 ONEOK and ONEOK Partners Announce Upcoming Investor Conferences TULSA, Okla. – May 16, 2017 – ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will participate in the Wells Fargo “Kick the Tires” Fixed-income Conference on Wednesday, May 17, 2017, in Houston and the MUFG Oil & Gas Conferenc

ONEOK Partners OKS MERGER SPECIAL MEETING 425 (Prospectus)

Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (?OKE?) and ONEOK Partners, L.P. (?OKS?) pursuant to the terms

ONEOK Partners OKS ANNOUNCES MEETING AND RECORD DATES FOR MERGER TRANSACTION SPECIAL MEETING (Current Report/Significant Event)

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) May 10, 2017 (Date of earliest event reported) May 9, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IR

ONEOK and ONEOK Partners Announce Meeting and Record Dates for Merger Transaction Special Meetings

Exhibit Exhibit 99.1 May 9, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners Announce Meeting and Record Dates for Merger Transaction Special Meetings TULSA, Okla. ? May 9, 2017 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) today announced that separate special meetings of ONEOK shareholders and ONEOK Partner

ONEOK Partners OKS INVESTOR UPDATE MAY 2017 (Prospectus)

Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (“OKE”) and ONEOK Partners, L.P. (“OKS”) pursuant to the terms

ONEOK and ONEOK Partners Announce Upcoming Investor Conferences

EX-99.1 2 oksinvestorconferences2017nr.htm OKS INVESTOR CONFERENCES 2017 NEWS RELEASE Exhibit 99.1 May 8, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners Announce Upcoming Investor Conferences TULSA, Okla. – May 8, 2017 – ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will participate in the Deutsche Bank MLP,

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) May 9, 2017 (Date of earliest event reported) May 8, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Employer

ONEOK Partners 425 (Prospectus)

Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (“OKE”) and ONEOK Partners, L.P. (“OKS”) pursuant to the terms

ONEOK Partners Announces Higher First-quarter 2017 Financial Results

Exhibit Exhibit 99.1 May 2, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces Higher First-quarter 2017 Financial Results TULSA, Okla. - May 2, 2017 - ONEOK Partners, L.P. (NYSE: OKS) today announced first-quarter 2017 financial results. SUMMARY ? First-quarter 2017 net income attributable to ONEOK Partners and adjusted earnings bef

ONEOK Partners OKS Q1 2017 EARNINGS RELEASE 425 (Prospectus)

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) May 2, 2017 (Date of earliest event reported) May 2, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS

OKS / ONEOK Partners, L.P. OKS 2017 3.31 10-Q (Quarterly Report)

10-Q 1 oks-2017331x10q.htm OKS 2017 3.31 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q X Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2017. OR Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period

ONEOK Partners Announces Higher First-quarter 2017 Financial Results

EX-99.1 2 oksq12017earningsreleasenr.htm OKS Q1 2017 EARNINGS RELEASE NEWS RELEASE Exhibit 99.1 May 2, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces Higher First-quarter 2017 Financial Results TULSA, Okla. - May 2, 2017 - ONEOK Partners, L.P. (NYSE: OKS) today announced first-quarter 2017 financial results. SUMMARY • First-quart

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) May 2, 2017 (Date of earliest event reported) May 2, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Employer

ONEOK Partners OKS-OKE QUARTERLY MAGAZINE PAGES (Prospectus)

Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (“OKE”) and ONEOK Partners, L.P. (“OKS”) pursuant to the terms

ONEOK Partners OKS Q1 2017 DISTRIBUTION (Current Report/Significant Event)

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) April 21, 2017 (Date of earliest event reported) April 20, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commissio

ONEOK Partners Declares Quarterly Distribution

Exhibit Exhibit 99.1 April 20, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners Declares Quarterly Distribution TULSA, Okla. ? April 20, 2017 ? The board of directors of the general partner of ONEOK Partners, L.P. (NYSE: OKS) today declared a quarterly cash distribution of 79 cents per unit, effective for the first quarter 2017, payabl

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K 1 oks2017termloanamendment.htm OKS 2017 TERM LOAN AMENDMENT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) April 19, 2017 (Date of earliest event reported) April 18, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-1

First Amendment to the Term Loan Agreement, dated as of April 18, 2017, among ONEOK Partners, L.P., Mizuho Bank, Ltd., as administrative agent and a lender, and the other lenders parties thereto (including the Amended and Restated Term Loan Agreement attached as an annex thereto) (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K, filed by ONEOK Partners, L.P. on April 19, 2017 (File No. 1-12202)).

oksfirstamendmenttocredi FIRST AMENDMENT TO TERM LOAN AGREEMENT THIS FIRST AMENDMENT TO TERM LOAN AGREEMENT (this ?Amendment?) dated as of April 18, 2017, by and among ONEOK PARTNERS, L.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) April 18, 2017 (Date of earliest event reported) April 17, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Em

ONEOK and ONEOK Partners First-quarter 2017 Conference Call and Webcast Scheduled

EX-99.1 2 oksq12017earningscallnr.htm OKS Q1 2017 EARNINGS CALL NEWS RELEASE Exhibit 99.1 April 17, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners First-quarter 2017 Conference Call and Webcast Scheduled TULSA, Okla. – April 17, 2017 – ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will release their first-qua

ONEOK Partners OKS ANNUAL REPORT COVER 2016 (Prospectus)

425 1 a2016oksannualreportfina.htm OKS ANNUAL REPORT COVER 2016 Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-1 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc.

ONEOK Partners OKS INVESTOR UPDATE MARCH 2017 (Prospectus)

Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-1 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (“OKE”) and ONEOK Partners, L.P. (“OKS”) pursuant to the terms

ONEOK Partners OKS ACQUISITION TAX FAQS (Prospectus)

Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (“OKE”) and ONEOK Partners, L.P. (“OKS”) pursuant to the terms

OKS / ONEOK Partners, L.P. / KAYNE ANDERSON CAPITAL ADVISORS LP - KAYNE ANDERSON CAPITAL ADVISORS, LP SC 13GA NO 2 3-8-2017 (ONEOK PARTNERS LP) Passive Investment

SC 13G/A 1 formsc13ga.htm KAYNE ANDERSON CAPITAL ADVISORS, LP SC 13GA NO 2 3-8-2017 (ONEOK PARTNERS LP) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.2) ONEOK PARTNERS LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) 68268N103 (CUSIP Number) Check the following box if a fee is being paid w

ONEOK Partners OKS Q4 EARNINGS TRANSCRIPT (Prospectus)

425 1 oksq4earningstranscript.htm OKS Q4 EARNINGS TRANSCRIPT Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (

ONEOK Partners OKS Q4 2016 EARNINGS PRESENTATION (Prospectus)

Document Filed by ONEOK Partners, L.P. (Commission File No. 1-12202) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (?OKE?) and ONEOK Partners, L.P. (?OKS?) pursuant to

ONEOK Partners Announces Higher Fourth-quarter and Full-year 2016 Financial Results

Exhibit Exhibit 99.1 February 27, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces Higher Fourth-quarter and Full-year 2016 Financial Results TULSA, Okla. - Feb. 27, 2017 - ONEOK Partners, L.P. (NYSE: OKS) today announced fourth-quarter and full-year 2016 financial results. SUMMARY ? Full-year 2016 net income attributable to ONEOK

ONEOK Partners, L.P. Computation of Ratio of Earnings to Fixed Charges Years Ended December 31, (Unaudited) 2016 2015 2014 2013 2012 (Thousands of dollars) Fixed charges, as defined Interest on long-term debt $ 339,799 $ 357,069 $ 326,299 $ 284,589 $

Exhibit 12 ONEOK Partners, L.P. Computation of Ratio of Earnings to Fixed Charges Years Ended December 31, (Unaudited) 2016 2015 2014 2013 2012 (Thousands of dollars) Fixed charges, as defined Interest on long-term debt $ 339,799 $ 357,069 $ 326,299 $ 284,589 $ 238,706 Other interest 33,907 14,176 4,695 3,688 4,026 Amortization of debt discount, premium and expense 6,416 6,386 5,727 4,944 3,767 In

OKS / ONEOK Partners, L.P. 10-K - Annual Report - OKS 10-K 2016

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K X ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2016. OR 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 1-12202 ONEOK PAR

ONEOK Partners FORM 8-K (Prospectus)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) February 27, 2017 (Date of earliest event reported) February 27, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (

SUBSIDIARIES OF THE PARTNERSHIP AS OF DECEMBER 31, 2016 Subsidiaries of ONEOK Partners, L.P. State of Incorporation or Organization Bighorn Gas Gathering, L.L.C. (49.0%) Delaware Black Mesa Holdings, Inc. Delaware Black Mesa Pipeline, Inc. Delaware B

Exhibit 21 SUBSIDIARIES OF THE PARTNERSHIP AS OF DECEMBER 31, 2016 Subsidiaries of ONEOK Partners, L.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) February 27, 2017 (Date of earliest event reported) February 27, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Com

ONEOK Partners Announces Higher Fourth-quarter and Full-year 2016 Financial Results

Exhibit Exhibit 99.1 February 27, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces Higher Fourth-quarter and Full-year 2016 Financial Results TULSA, Okla. - Feb. 27, 2017 - ONEOK Partners, L.P. (NYSE: OKS) today announced fourth-quarter and full-year 2016 financial results. SUMMARY • Full-year 2016 net income attributable to ONEOK

OKS / ONEOK Partners, L.P. / TORTOISE CAPITAL ADVISORS, L.L.C. - OKS 13G 12.31.16 Passive Investment

SC 13G 1 oks13g123116.htm OKS 13G 12.31.16 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. One)* ONEOK Partners, L.P. (Name of Issuer) Common Units Representing Limited Partner Interests (Title of Class of Securities) 68268N103 (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this Statement) Che

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) February 8, 2017 (Date of earliest event reported) February 7, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IR

ONEOK and ONEOK Partners Fourth-quarter and Year-end 2016 Conference Call and Webcast Scheduled

Exhibit Exhibit 99.1 February 7, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners Fourth-quarter and Year-end 2016 Conference Call and Webcast Scheduled TULSA, Okla. ? Feb. 7, 2017 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will release their fourth-quarter and year-end 2016 earnings after the market close

ONEOK 425 (Prospectus)

425 Filed by ONEOK, Inc. (Commission File No. 001-13643) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (?OKE?) and ONEOK Partners, L.P. (?OKS?) pursuant to the terms of

ONEOK 425 (Prospectus)

425 Filed by ONEOK, Inc. (Commission File No. 001-13643) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (?OKE?) and ONEOK Partners, L.P. (?OKS?) pursuant to the terms of

OKS / ONEOK Partners, L.P. / ONEOK INC /NEW/ - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 3) ONEOK Partners, L.P. (Name of Issuer) COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS (Title of Class of Securities) 68268N103 (CUSIP Number) Eric Grimshaw Vice President, Associate General Counsel and Corporate Secretary ONEOK, Inc. 100 We

To All Employees:

EX-99.2 Exhibit 99.2 To All Employees: This morning, we announced an agreement in which ONEOK will acquire all of the outstanding common units of ONEOK Partners it does not already own. Once the transaction is approved, all of our operations will be consolidated under ONEOK. We also issued our 2017 full year guidance today reflecting this transaction. We are excited about this acquisition because

ONEOK Announces Agreement to Acquire Remaining Public Stake in ONEOK Partners in a Transaction Valued at $17.2 Billion ONEOK Will Host a Conference Call Today at 8:30 a.m. ET to Discuss the Transaction and 2017 Financial Guidance

EX-99.1 Exhibit 99.1 February 1, 2017 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Announces Agreement to Acquire Remaining Public Stake in ONEOK Partners in a Transaction Valued at $17.2 Billion ONEOK Will Host a Conference Call Today at 8:30 a.m. ET to Discuss the Transaction and 2017 Financial Guidance ONEOK expects: ? A dividend increase of 21 percen

AGREEMENT AND PLAN OF MERGER DATED AS OF JANUARY 31, 2017 BY AND AMONG ONEOK, INC. NEW HOLDINGS SUBSIDIARY, LLC, ONEOK PARTNERS, L.P. ONEOK PARTNERS GP, L.L.C. Table of Contents Page ARTICLE I DEFINED TERMS; CONSTRUCTION 1 Section 1.1 Definitions 1 S

EX-2.1 Exhibit 2.1 Execution Copy AGREEMENT AND PLAN OF MERGER DATED AS OF JANUARY 31, 2017 BY AND AMONG ONEOK, INC. NEW HOLDINGS SUBSIDIARY, LLC, ONEOK PARTNERS, L.P. AND ONEOK PARTNERS GP, L.L.C. Table of Contents Page ARTICLE I DEFINED TERMS; CONSTRUCTION 1 Section 1.1 Definitions 1 Section 1.2 Interpretation 9 ARTICLE II THE MERGER 10 Section 2.1 The Merger and Surviving Entity 10 Section 2.2

ONEOK Announces Agreement to Acquire Remaining Public Stake in ONEOK Partners in a Transaction Valued at $17.2 Billion ONEOK Will Host a Conference Call Today at 8:30 a.m. ET to Discuss the Transaction and 2017 Financial Guidance

EX991 Exhibit 99.1 February 1, 2017 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Announces Agreement to Acquire Remaining Public Stake in ONEOK Partners in a Transaction Valued at $17.2 Billion ONEOK Will Host a Conference Call Today at 8:30 a.m. ET to Discuss the Transaction and 2017 Financial Guidance ONEOK expects: ? A dividend increase of 21 percent

To All Employees:

EX-99.2 Exhibit 99.2 To All Employees: This morning, we announced an agreement in which ONEOK will acquire all of the outstanding common units of ONEOK Partners it does not already own. Once the transaction is approved, all of our operations will be consolidated under ONEOK. We also issued our 2017 full year guidance today reflecting this transaction. We are excited about this acquisition because

Regulation FD Disclosure, Changes in Control of Registrant, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K 1 d316888d8k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) February 1, 2017 (Date of earliest event reported) January 31, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or othe

ONEOK FORM 8-K (Prospectus)

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) February 1, 2017 (Date of earliest event reported) January 31, 2017 ONEOK, Inc. (Exact name of registrant as specified in its charter) Oklahoma 001-13643 73-1520922 (State or other jurisdiction of incorporat

ONEOK 425 (Prospectus)

425 Filed by ONEOK, Inc. (Commission File No. 001-13643) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (?OKE?) and ONEOK Partners, L.P. (?OKS?) pursuant to the terms of

ONEOK Announces Agreement to Acquire Remaining Public Stake in ONEOK Partners in a Transaction Valued at $17.2 Billion ONEOK Will Host a Conference Call Today at 8:30 a.m. ET to Discuss the Transaction and 2017 Financial Guidance

EX-99.1 Exhibit 99.1 February 1, 2017 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Announces Agreement to Acquire Remaining Public Stake in ONEOK Partners in a Transaction Valued at $17.2 Billion ONEOK Will Host a Conference Call Today at 8:30 a.m. ET to Discuss the Transaction and 2017 Financial Guidance ONEOK expects: ? A dividend increase of 21 percen

AGREEMENT AND PLAN OF MERGER DATED AS OF JANUARY 31, 2017 BY AND AMONG ONEOK, INC. NEW HOLDINGS SUBSIDIARY, LLC, ONEOK PARTNERS, L.P. ONEOK PARTNERS GP, L.L.C. Table of Contents Page ARTICLE I DEFINED TERMS; CONSTRUCTION 1 Section 1.1 Definitions 1 S

EX-2.1 Exhibit 2.1 Execution Copy AGREEMENT AND PLAN OF MERGER DATED AS OF JANUARY 31, 2017 BY AND AMONG ONEOK, INC. NEW HOLDINGS SUBSIDIARY, LLC, ONEOK PARTNERS, L.P. AND ONEOK PARTNERS GP, L.L.C. Table of Contents Page ARTICLE I DEFINED TERMS; CONSTRUCTION 1 Section 1.1 Definitions 1 Section 1.2 Interpretation 9 ARTICLE II THE MERGER 10 Section 2.1 The Merger and Surviving Entity 10 Section 2.2

ONEOK Partners FORM 8-K (Prospectus)

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) February 1, 2017 (Date of earliest event reported) January 31, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commi

AGREEMENT AND PLAN OF MERGER DATED AS OF JANUARY 31, 2017 BY AND AMONG ONEOK, INC. NEW HOLDINGS SUBSIDIARY, LLC, ONEOK PARTNERS, L.P. ONEOK PARTNERS GP, L.L.C. Table of Contents Page ARTICLE I DEFINED TERMS; CONSTRUCTION 1 Section 1.1 Definitions 1 S

EX-2.1 Exhibit 2.1 Execution Copy AGREEMENT AND PLAN OF MERGER DATED AS OF JANUARY 31, 2017 BY AND AMONG ONEOK, INC. NEW HOLDINGS SUBSIDIARY, LLC, ONEOK PARTNERS, L.P. AND ONEOK PARTNERS GP, L.L.C. Table of Contents Page ARTICLE I DEFINED TERMS; CONSTRUCTION 1 Section 1.1 Definitions 1 Section 1.2 Interpretation 9 ARTICLE II THE MERGER 10 Section 2.1 The Merger and Surviving Entity 10 Section 2.2

To All Employees:

EX-99.2 4 d316888dex992.htm EX-99.2 Exhibit 99.2 To All Employees: This morning, we announced an agreement in which ONEOK will acquire all of the outstanding common units of ONEOK Partners it does not already own. Once the transaction is approved, all of our operations will be consolidated under ONEOK. We also issued our 2017 full year guidance today reflecting this transaction. We are excited abo

AGREEMENT AND PLAN OF MERGER DATED AS OF JANUARY 31, 2017 BY AND AMONG ONEOK, INC. NEW HOLDINGS SUBSIDIARY, LLC, ONEOK PARTNERS, L.P. ONEOK PARTNERS GP, L.L.C. Table of Contents Page ARTICLE I DEFINED TERMS; CONSTRUCTION 1 Section 1.1 Definitions 1 S

EX-99.L Exhibit L Execution Copy AGREEMENT AND PLAN OF MERGER DATED AS OF JANUARY 31, 2017 BY AND AMONG ONEOK, INC. NEW HOLDINGS SUBSIDIARY, LLC, ONEOK PARTNERS, L.P. AND ONEOK PARTNERS GP, L.L.C. Table of Contents Page ARTICLE I DEFINED TERMS; CONSTRUCTION 1 Section 1.1 Definitions 1 Section 1.2 Interpretation 9 ARTICLE II THE MERGER 10 Section 2.1 The Merger and Surviving Entity 10 Section 2.2 C

ONEOK 425 (Prospectus)

Filed by ONEOK, Inc. (Commission File No. 001-13643) Pursuant to Rule 425 Under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: ONEOK Partners, L.P. (Commission File No.: 1-12202) This filing relates to the proposed business combination of ONEOK, Inc. (“OKE”) and ONEOK Partners, L.P. (“OKS”) pursuant to the terms of an

ONEOK Partners AMENDMENT NO. 2 TO SC 13G (Passive Acquisition of More Than 5% of Shares)

SC 13G/A 1 d314262dsc13ga.htm AMENDMENT NO. 2 TO SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Oneok Partners, L.P. (Name of Issuer) Common Units (Title of Class of Securities) 68268N103 (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this Statement) Check the appropr

OKS / ONEOK Partners, L.P. / KAYNE ANDERSON CAPITAL ADVISORS LP - KAYNE ANDERSON CAPITAL ADVISORS, LP SC 13GA NO 1 1-25-2017 (ONEOK PARTNERS LP) Passive Investment

SC 13G/A 1 formsc13ga.htm KAYNE ANDERSON CAPITAL ADVISORS, LP SC 13GA NO 1 1-25-2017 (ONEOK PARTNERS LP) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.1) ONEOK PARTNERS LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) 68268N103 (CUSIP Number) Check the following box if a fee is being paid

ONEOK Partners Declares Quarterly Distribution

Exhibit Exhibit 99.1 January 18, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners Declares Quarterly Distribution TULSA, Okla. ? Jan. 18, 2017 ? The board of directors of the general partner of ONEOK Partners, L.P. (NYSE: OKS) today declared a quarterly cash distribution of 79 cents per unit, effective for the fourth quarter 2016, paya

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) January 19, 2017 (Date of earliest event reported) January 18, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commi

Regulation FD Disclosure, Financial Statements and Exhibits

8-K 1 oksubsmlpconference2017.htm OKS UBS MLP CONFERENCE 2017 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) January 10, 2017 (Date of earliest event reported) January 9, 2017 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-

ONEOK Partners to Participate in UBS MLP One-on-One Conference

Exhibit Exhibit 99.1 January 9, 2017 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners to Participate in UBS MLP One-on-One Conference TULSA, Okla. ? Jan. 9, 2017 ? ONEOK Partners, L.P. (NYSE: OKS) will participate in the UBS MLP One-on-One Conference Jan. 10-11, 2017, in Park City, Utah. Terry K. Spencer, ONEOK Partners president and chief

Regulation FD Disclosure, Financial Statements and Exhibits

8-K 1 okswellsfargosymposium2016.htm OKS WELLS FARGO ENERGY SYMPOSIUM 2016 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) December 6, 2016 (Date of earliest event reported) December 5, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charte

ONEOK and ONEOK Partners to Present at Wells Fargo Energy Symposium

Exhibit Exhibit 99.1 December 5, 2016 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners to Present at Wells Fargo Energy Symposium TULSA, Okla. ? Dec. 5, 2016 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will present at the Wells Fargo Energy Symposium in New York City, Dec. 6, 2016. Terry K. Spencer, ONEOK and ON

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) November 29, 2016 (Date of earliest event reported) November 28, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (

ONEOK and ONEOK Partners to Participate in the Jefferies Global Energy Conference

Exhibit Exhibit 99.1 November 28, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners to Participate in the Jefferies Global Energy Conference TULSA, Okla. ? Nov. 28, 2016 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will participate in the Jefferies Global Energy Conference on Tuesday, Nov. 29, 2016, in Houston,

ONEOK Partners to Participate in RBC Capital Markets’ MLP Conference

Exhibit Exhibit 99.1 November 15, 2016 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners to Participate in RBC Capital Markets? MLP Conference TULSA, Okla. ? Nov. 15, 2016 ? ONEOK Partners, L.P. (NYSE: OKS) will participate in RBC Capital Markets? MLP Conference on Wednesday, Nov. 16, 2016, in Dallas, Texas. Terry K. Spencer, ONEOK Partners

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) November 16, 2016 (Date of earliest event reported) November 15, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (

OKS / ONEOK Partners, L.P. 10-Q - Quarterly Report - OKS 2016 9.30 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q X Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2016. OR 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 1-12202

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) November 1, 2016 (Date of earliest event reported) November 1, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commi

ONEOK Partners Announces Higher Third-quarter 2016 Financial Results

Exhibit Exhibit 99.1 November 1, 2016 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces Higher Third-quarter 2016 Financial Results TULSA, Okla. - Nov. 1, 2016 - ONEOK Partners, L.P. (NYSE: OKS) today announced third-quarter 2016 financial results. SUMMARY ? Third-quarter 2016 net income attributable to ONEOK Partners and adjusted earnin

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) October 20, 2016 (Date of earliest event reported) October 19, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IR

ONEOK Partners Declares Quarterly Distribution

Exhibit Exhibit 99.1 October 19, 2016 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners Declares Quarterly Distribution TULSA, Okla. ? Oct. 19, 2016 ? The board of directors of the general partner of ONEOK Partners, L.P. (NYSE: OKS) today declared a quarterly cash distribution of 79 cents per unit, effective for the third quarter 2016, payab

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) October 14, 2016 (Date of earliest event reported) October 13, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IR

ONEOK and ONEOK Partners Third-quarter 2016 Conference Call and Webcast Scheduled

Exhibit Exhibit 99.1 October 13, 2016 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners Third-quarter 2016 Conference Call and Webcast Scheduled TULSA, Okla. ? Oct. 13, 2016 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will release third-quarter 2016 earnings after the market closes on Nov. 1, 2016. ONEOK?s and ON

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) September 6, 2016 (Date of earliest event reported) September 1, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (

ONEOK and ONEOK Partners to Present at the Barclays CEO Energy Conference

Exhibit Exhibit 99.1 September 1, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners to Present at the Barclays CEO Energy Conference TULSA, Okla. ? Sept. 1, 2016 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will participate at the Barclays CEO Energy Conference Sept. 6-7, 2016, in New York City. Terry K. Spencer

ONEOK Partners OKS CITI MLP CONFERENCE 2016 (Current Report/Significant Event)

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) August 17, 2016 (Date of earliest event reported) August 16, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commiss

ONEOK Partners to Participate in Citi MLP Conference

Exhibit Exhibit 99.1 August 16, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners to Participate in Citi MLP Conference TULSA, Okla. ? Aug. 16, 2016 ? ONEOK Partners, L.P. (NYSE: OKS) will participate in the Citi One-on-One Master Limited Partnership/Midstream Infrastructure Conference on Wednesday and Thursday, Aug. 17-18, 2016, in Las Ve

ONEOK and ONEOK Partners to Participate in the Tuohy Brothers Annual Energy Conference

EX-99.1 2 okstuohybrosconf2016nr.htm OKS TUOHY BROTHERS ENERGY CONFERENCE 2016 NR Exhibit 99.1 August 8, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners to Participate in the Tuohy Brothers Annual Energy Conference TULSA, Okla. – Aug. 8, 2016 – ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will participate in the

Regulation FD Disclosure, Financial Statements and Exhibits

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) August 9, 2016 (Date of earliest event reported) August 8, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commissio

OKS / ONEOK Partners, L.P. 10-Q - Quarterly Report - OKS Q2 2016 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q X Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2016. OR 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 1-12202 ONEOK

ONEOK Partners Announces Higher Second-quarter 2016 Financial Results Natural Gas and Natural Gas Liquids Volumes Continue to Increase Quarter Over Quarter

Exhibit Exhibit 99.1 August 2, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces Higher Second-quarter 2016 Financial Results Natural Gas and Natural Gas Liquids Volumes Continue to Increase Quarter Over Quarter TULSA, Okla. - Aug. 2, 2016 - ONEOK Partners, L.P. (NYSE: OKS) today announced second-quarter 2016 financial results. SUMMARY

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) August 2, 2016 (Date of earliest event reported) August 2, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commissio

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) July 29, 2016 (Date of earliest event reported) July 28, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission

ONEOK Partners Declares Quarterly Distribution

Exhibit Exhibit 99.1 July 28, 2016 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Declares Quarterly Distribution TULSA, Okla. ? July 28, 2016 ? The board of directors of the general partner of ONEOK Partners, L.P. (NYSE: OKS) today declared a quarterly cash distribution of 79 cents per unit, effective for the second quarter 2016, payable Aug.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) July 14, 2016 (Date of earliest event reported) July 13, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Empl

ONEOK and ONEOK Partners Second-quarter 2016 Conference Call and Webcast Scheduled

Exhibit Exhibit 99.1 July 13, 2016 Analyst Contact: Megan Patterson 918-561-5325 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners Second-quarter 2016 Conference Call and Webcast Scheduled TULSA, Okla. ? July 13, 2016 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will release second-quarter 2016 earnings after the market closes on Aug. 2, 2016. ONEOK?s and ONE

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) June 1, 2016 (Date of earliest event reported) May 31, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Employ

ONEOK Partners to Present at Master Limited Partnership Association Investor Conference

Exhibit Exhibit 99.1 May 31, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners to Present at Master Limited Partnership Association Investor Conference TULSA, Okla. ? May 31, 2016 ? ONEOK Partners, L.P. (NYSE: OKS) will present at the Master Limited Partnership Association Investor Conference in Orlando, Florida. Terry K. Spencer, ONEOK Pa

OKS / ONEOK Partners, L.P. 10-Q - Quarterly Report - OKS Q1 2016 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q X Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2016. OR 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 1-12202 ONEO

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 oksq12016earningsrelease.htm OKS Q1 2016 EARNINGS RELEASE UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) May 3, 2016 (Date of earliest event reported) May 3, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 9

ONEOK Partners Announces First-quarter 2016 Financial Results Natural Gas and Natural Gas Liquids Volumes Continue to Increase; Adjusted EBITDA Rises by Nearly 40 Percent in First Quarter

Exhibit Exhibit 99.1 May 3, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces First-quarter 2016 Financial Results Natural Gas and Natural Gas Liquids Volumes Continue to Increase; Adjusted EBITDA Rises by Nearly 40 Percent in First Quarter TULSA, Okla. - May 3, 2016 - ONEOK Partners, L.P. (NYSE: OKS) today announced first-quarter 2016

ONEOK Partners Declares Quarterly Distribution

Exhibit Exhibit 99.1 April 21, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners Declares Quarterly Distribution TULSA, Okla. ? April 21, 2016 ? The board of directors of the general partner of ONEOK Partners, L.P. (NYSE: OKS) today declared a quarterly cash distribution of 79 cents per unit, effective for the first quarter 2016, payable M

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) April 22, 2016 (Date of earliest event reported) April 21, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Em

Regulation FD Disclosure, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) April 15, 2016 (Date of earliest event reported) April 14, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IR

ONEOK and ONEOK Partners First-quarter 2016 Conference Call and Webcast Scheduled

Exhibit Exhibit 99.1 April 14, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners First-quarter 2016 Conference Call and Webcast Scheduled TULSA, Okla. ? April 14, 2016 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will release their first-quarter 2016 earnings after the market closes on May 3, 2016. ONEOK?s and O

ONEOK and ONEOK Partners Announce Upcoming Investor Conferences

Exhibit Exhibit 99.1 February 29, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners Announce Upcoming Investor Conferences TULSA, Okla. ? February 29, 2016 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will participate in the Morgan Stanley MLP & Diversified Natural Gas Conference on March 1, 2016, and the Barcla

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) March 1, 2016 (Date of earliest event reported) February 29, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS

ONEOK Partners, L.P. Computation of Ratio of Earnings to Fixed Charges Years Ended December 31, (Unaudited) 2015 2014 2013 2012 2011 (Thousands of dollars) Fixed charges, as defined Interest on long-term debt $ 357,069 $ 326,299 $ 284,589 $ 238,706 $

Exhibit 12 ONEOK Partners, L.P. Computation of Ratio of Earnings to Fixed Charges Years Ended December 31, (Unaudited) 2015 2014 2013 2012 2011 (Thousands of dollars) Fixed charges, as defined Interest on long-term debt $ 357,069 $ 326,299 $ 284,589 $ 238,706 $ 239,275 Other interest 14,176 4,695 3,688 4,026 2,354 Amortization of debt discount, premium and expense 6,386 5,727 4,944 3,767 3,729 Int

OKS / ONEOK Partners, L.P. 10-K - Annual Report - OKS 10-K 2015

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K X ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2015. OR 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 1-12202 ONEOK PAR

SUBSIDIARIES OF THE PARTNERSHIP AS OF DECEMBER 31, 2015 Subsidiaries of ONEOK Partners, L.P. State of Incorporation or Organization Bighorn Gas Gathering, L.L.C. (49.0%) Delaware Black Mesa Holdings, Inc. Delaware Black Mesa Pipeline, Inc. Delaware B

Exhibit 21 SUBSIDIARIES OF THE PARTNERSHIP AS OF DECEMBER 31, 2015 Subsidiaries of ONEOK Partners, L.

ONEOK Partners Announces Fourth-quarter and Full-year 2015 Financial Results

Exhibit Exhibit 99.1 February 22, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces Fourth-quarter and Full-year 2015 Financial Results ? Fourth-quarter adjusted EBITDA increased 8 percent compared with the fourth quarter 2014; ? Fourth-quarter 2015 net income of 58 cents per unit, before noncash impairment charges of 91 cents per unit

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) February 22, 2016 (Date of earliest event reported) February 22, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commissi

OKS / ONEOK Partners, L.P. / TORTOISE CAPITAL ADVISORS, L.L.C. - OKE 13G 12.31.15 Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* ONEOK Partners, L.P. (Name of Issuer) Common Units Representing Limited Partner Interests (Title of Class of Securities) 68268N103 (CUSIP Number) December 31, 2015 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule p

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) February 3, 2016 (Date of earliest event reported) January 29, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission

Extension Agreement, dated as of January 29, 2016, among ONEOK Partners, L.P., Citibank, N.A., as administrative agent, swingline lender, a letter of credit issuer and a lender, and the other lenders and letter of credit issuers parties thereto (incorporated by reference to Exhibit 10.1 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed on February 3, 2016 (File No. 1-12202)).

Exhibit Exhibit 10.1 EXTENSION AGREEMENT (Extension of Maturity Date Pursuant to Section 2.15 of the Credit Agreement) This EXTENSION AGREEMENT (this “ Agreement ”) dated as of January 29, 2016 (the “ Extension Effective Date ”) is entered into by and among ONEOK PARTNERS, L.P. , a Delaware limited partnership (“ Borrower ”), ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP , a Delaware limited par

ONEOK Partners SC 13G (Passive Acquisition of More Than 5% of Shares)

SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Oneok Partners, L.P. (Name of Issuer) Common Units (Title of Class of Securities) 68268N103 (CUSIP Number) December 31, 2015 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

OKS / ONEOK Partners, L.P. / KAYNE ANDERSON CAPITAL ADVISORS LP - KAYNE ANDERSON CAPITAL ADVISORS, LP SC 13G 1-29-2016 (ONEOK PARTNERS LP) Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 ONEOK PARTNERS LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) 68268N103 (CUSIP Number) Check the following box if a fee is being paid with this statement ☐. (A fee is not required only if the filing person: (1) has a previous statement on file reporting be

ONEOK and ONEOK Partners Fourth-quarter and Year-end 2015 Conference Call and Webcast Scheduled

Exhibit Exhibit 99.1 January 27, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners Fourth-quarter and Year-end 2015 Conference Call and Webcast Scheduled TULSA, Okla. ? Jan. 27, 2016 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will release their fourth-quarter and year-end 2015 earnings after the market closes

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) January 28, 2016 (Date of earliest event reported) January 27, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IR

ONEOK and ONEOK Partners to Participate in U.S. Capital Advisors Midstream Corporate Access Day

Exhibit Exhibit 99.1 January 25, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners to Participate in U.S. Capital Advisors Midstream Corporate Access Day TULSA, Okla. ? Jan. 25, 2016 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will participate in the U.S. Capital Advisors Midstream Corporate Access Day on Tuesd

ONEOK Partners OKS US CAPITAL ACCESS DAY 2016 (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) January 26, 2016 (Date of earliest event reported) January 25, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

8-K 1 oksq42015distribution.htm OKS Q4 2015 DISTRIBUTION UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) January 22, 2016 (Date of earliest event reported) January 21, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-1220

ONEOK Partners Declares Quarterly Distribution Expects Fourth-quarter 2015 Distribution Coverage of Greater Than 1.0 Times

Exhibit Exhibit 99.1 January 21, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners Declares Quarterly Distribution Expects Fourth-quarter 2015 Distribution Coverage of Greater Than 1.0 Times TULSA, Okla. ? Jan. 21, 2016 ? The board of directors of the general partner of ONEOK Partners, L.P. (NYSE: OKS) today declared a quarterly cash distr

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) January 12, 2016 (Date of earliest event reported) January 11, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IR

Term Loan Agreement, dated as of January 8, 2016, among ONEOK Partners, L.P., Mizuho Bank, Ltd., as administrative agent and a lender, and the other lenders parties thereto (incorporated by reference to Exhibit 10.1 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed on January 12, 2016 (File No. 1-12202)).

Exhibit Exhibit 10.1 Published CUSIP Number: 68268QAG1 $1,000,000,000 TERM LOAN AGREEMENT Dated as of January 8, 2016 among ONEOK PARTNERS, L.P., as the Borrower, MIZUHO BANK, LTD., as Administrative Agent and The Other Lenders Party Hereto BANK OF AMERICA, N.A., BARCLAYS BANK PLC, CITIBANK, N.A. JPMORGAN CHASE BANK, N.A. and TORONTO DOMINION (TEXAS) LLC, Syndication Agents MIZUHO BANK, LTD., BARC

ONEOK Partners OKS TERM LOAN AGREEMENT 2016 (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) January 12, 2016 (Date of earliest event reported) January 8, 2016 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission

ONEOK Partners to Participate in UBS MLP One-on-One Conference

Exhibit Exhibit 99.1 January 11, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners to Participate in UBS MLP One-on-One Conference TULSA, Okla. ? Jan. 11, 2016 ? ONEOK Partners, L.P. (NYSE: OKS) will participate in the UBS MLP One-on-One Conference Jan. 12-13, 2016, in Park City, Utah. Terry K. Spencer, ONEOK Partners president and chief e

Guaranty Agreement, dated as of January 8, 2016, by ONEOK Partners Intermediate Limited Partnership in favor of Mizuho Bank, Ltd., as administrative agent, under the above-referenced Term Loan Agreement (incorporated by reference to Exhibit 10.2 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed on January 12, 2016 (File No. 1-12202)).

Exhibit Exhibit 10.2 GUARANTY AGREEMENT THIS GUARANTY AGREEMENT (the ? Agreement ?), dated as of January 8, 2016 is made by ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP, a Delaware limited partnership (the ? Guarantor ?) in favor of MIZUHO BANK, LTD., a national banking association, as administrative agent (the ? Administrative Agent ?) for the several banks and other financial institutions (th

ONEOK Partners Enters into $1 Billion Term Loan Agreement

Exhibit Exhibit 99.1 January 11, 2016 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners Enters into $1 Billion Term Loan Agreement ? Enhances partnership?s liquidity position ? Effectively refinances the partnership?s 2016 long-term debt maturities ? No need to access public debt or equity markets well into 2017 TULSA, Okla. ? Jan. 11, 2016 ? O

ONEOK Partners OKS ANNOUNCES 2016 FINANCIAL GUIDANCE (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) December 21, 2015 (Date of earliest event reported) December 21, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commissi

ONEOK and ONEOK Partners Announce 2016 Financial Guidance

Exhibit Exhibit 99.1 December 21, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners Announce 2016 Financial Guidance ONEOK expects: ? Dividend to remain flat ? No cash income taxes in 2016 ? No long-term debt maturities until 2022 ? Free cash flow after dividends and cash on hand totaling approximately $250 million available to s

ONEOK and ONEOK Partners to Present at Wells Fargo Energy Symposium

Exhibit Exhibit 99.1 December 7, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners to Present at Wells Fargo Energy Symposium TULSA, Okla. ? Dec. 7, 2015 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will present at the Wells Fargo Energy Symposium in New York City, Dec. 8, 2015. Terry K. Spencer, ONEOK and ONEOK

ONEOK Partners OKS WELLS FARGO ENERGY SYMPOSIUM 2015 (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) December 8, 2015 (Date of earliest event reported) December 7, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q X Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2015. ___ Transition Report Pursu

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q X Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2015. OR 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 1-12202

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) November 3, 2015 (Date of earliest event reported) November 3, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission

ONEOK Partners Announces Third-quarter 2015 Results

Exhibit Exhibit 99.1 November 3, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces Third-quarter 2015 Results ? ONEOK Partners reaffirms 2015 financial guidance ranges and the expectation to exceed a 1.0 times distribution coverage in 2016; ? The natural gas gathering and processing segment?s fee-based margin is expected to increase to

ONEOK Partners Declares Quarterly Distribution

Exhibit Exhibit 99.1 October 21, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners Declares Quarterly Distribution TULSA, Okla. ? Oct. 21, 2015 ? The board of directors of the general partner of ONEOK Partners, L.P. (NYSE: OKS) today declared a quarterly cash distribution of 79 cents per unit, effective for the third quarter 2015, payable

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) October 22, 2015 (Date of earliest event reported) October 21, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IR

ONEOK and ONEOK Partners Third-quarter 2015 Conference Call and Webcast Scheduled

Exhibit Exhibit 99.1 October 13, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners Third-quarter 2015 Conference Call and Webcast Scheduled TULSA, Okla. - Oct. 13, 2015 - ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will release their third-quarter 2015 earnings after the market closes on Nov. 3, 2015. ONEOK?s and

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) October 14, 2015 (Date of earliest event reported) October 13, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IR

ONEOK Partners OKS BARCLAYS ENERGY CONFERENCE 2015 (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) September 4, 2015 (Date of earliest event reported) September 3, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commissi

ONEOK and ONEOK Partners to Present at the Barclays CEO Energy Conference

Exhibit Exhibit 99.1 September 3, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners to Present at the Barclays CEO Energy Conference TULSA, Okla. - Sept. 3, 2015 - ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will participate at the Barclays CEO Energy Conference Sept. 8-9, 2015 in New York City. Terry K. Spencer,

OKS / ONEOK Partners, L.P. / ONEOK INC /NEW/ - SCHEDULE 13D AMENDMENT NO. 2 Activist Investment

SCHEDULE 13D AMENDMENT NO. 2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 2) ONEOK PARTNERS, L.P. (Name of Issuer) COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS (Title of Class of Securities) 68268N103 (CUSIP Number) Eric Grimshaw Vice President, Associate General Counsel and Corporate Secretar

ONEOK PARTNERS, L.P. 21,544,581 COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS Common Unit Purchase Agreement

EX-1.1 Exhibit 1.1 EXECUTION COPY ONEOK PARTNERS, L.P. 21,544,581 COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS Common Unit Purchase Agreement August 11, 2015 ONEOK, Inc. 100 West Fifth Street Tulsa, OK 74103 Attention Stephen Lake, Esq.: ONEOK, Inc. (the ?Investor?), an Oklahoma corporation, proposes, subject to the terms and conditions stated herein, to purchase from ONEOK Partners, L.P.,

COMMON UNIT PURCHASE AGREEMENT by and among ONEOK PARTNERS, L.P. THE PURCHASERS PARTY HERETO Table of Contents ARTICLE I DEFINITIONS 1 Section 1.01 Definitions 1 Section 1.02 Accounting Procedures and Interpretation 4 ARTICLE II AGREEMENT TO SELL AND

EX-99.1 Exhibit 99.1 Execution Version COMMON UNIT PURCHASE AGREEMENT by and among ONEOK PARTNERS, L.P. and THE PURCHASERS PARTY HERETO Table of Contents ARTICLE I DEFINITIONS 1 Section 1.01 Definitions 1 Section 1.02 Accounting Procedures and Interpretation 4 ARTICLE II AGREEMENT TO SELL AND PURCHASE 5 Section 2.01 Sale and Purchase 5 Section 2.02 Closing 5 Section 2.03 Conditions to Closing 5 Se

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) August 17, 2015 (Date of earliest event reported) August 11, 2015 ONEOK Partners, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction of incorporation)

ONEOK Partners Announces Agreements to Sell 24.9 Million Common Units ONEOK, Inc. Agrees to Purchase $650 Million of Common Units Kayne Anderson Agrees to Purchase $100 Million of Common Units

EX-99.2 6 d66645dex992.htm EX-99.2 Exhibit 99.2 News August 12, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces Agreements to Sell 24.9 Million Common Units ONEOK, Inc. Agrees to Purchase $650 Million of Common Units Kayne Anderson Agrees to Purchase $100 Million of Common Units TULSA, Okla. – Aug. 12, 2015 – ONEOK Partners, L.P. (NY

3,314,551 Common Units Representing Limited Partner Interests

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-198313 PROSPECTUS SUPPLEMENT (To Prospectus Dated September 8, 2014) 3,314,551 Common Units Representing Limited Partner Interests We are offering 3,314,551 common units representing limited partner interests in us directly to certain purchasers in a privately negotiated transaction at a price of $30.17 per common unit. We exp

As filed with the Securities and Exchange Commission on August 7, 2015

Table of Contents As filed with the Securities and Exchange Commission on August 7, 2015 Registration No.

ONEOK Partners, L.P. Computation of Ratio of Earnings to Fixed Charges Six Months Ended June 30, 2015 For the Years Ended December 31, (Unaudited) 2014 2013 2012 2011 2010 (Thousands of dollars) Fixed Charges, as defined Interest on long-term debt $

EX-12.1 Exhibit 12.1 ONEOK Partners, L.P. Computation of Ratio of Earnings to Fixed Charges Six Months Ended June 30, 2015 For the Years Ended December 31, (Unaudited) 2014 2013 2012 2011 2010 (Thousands of dollars) Fixed Charges, as defined Interest on long-term debt $ 174,354 $ 326,299 $ 284,589 $ 238,706 $ 239,275 $ 202,968 Other interest 7,576 4,695 3,688 4,026 2,354 2,624 Amortization of debt

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE

Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ¨ CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b) (2) WELLS FARGO BANK, NATIONAL ASSOCIATION (Exact name of trustee as specified in its charter) A National Banking Associ

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q X Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2015. ___ Transition Report Pursuant t

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q X Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2015. OR 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 1-12202 ONEOK

ONEOK Partners Announces Second-quarter 2015 Results

OKS Q2 2015 Earnings Release NR Exhibit 99.1 August 4, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces Second-quarter 2015 Results ? Natural gas liquids gathered and fractionated volumes increased 51 and 7 percent, respectively; ? Natural gas gathered and processed volumes increased 17 and 16 percent, respectively; ? Adjusted EBITDA

ONEOK Partners OKS Q2 2015 EARNINGS RELEASE (Current Report/Significant Event)

OKS Q2 2015 Earnings Release UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

ONEOK Partners to Further Expand Permian Basin Capacity to Serve Natural Gas Markets in Mexico

OKS WesTex Expansion NR Exhibit 99.1 July 30, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners to Further Expand Permian Basin Capacity to Serve Natural Gas Markets in Mexico TULSA, Okla. ? July 30, 2015 ? ONEOK Partners, L.P. (NYSE: OKS) today announced plans to invest $70 million to $100 million to expand its ONEOK WesTex Transmission (ONEOK

Regulation FD Disclosure, Financial Statements and Exhibits

8-K 1 okswestexexpansion.htm OKS WESTEX EXPANSION UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) July 31, 2015 (Date of earliest event reported) July 30, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873

ONEOK Partners OKS Q2 2015 DISTRIBUTION (Current Report/Significant Event)

OKS Q2 2015 Distribution UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

ONEOK Partners Declares Quarterly Distribution

OKS Q2 2015 Distribution NR Exhibit 99.1 July 23, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners Declares Quarterly Distribution TULSA, Okla. ? July 23, 2015 ? The board of directors of the general partner of ONEOK Partners, L.P. (NYSE: OKS) today declared a quarterly cash distribution of 79 cents per unit, effective for the second quar

ONEOK and ONEOK Partners Second-quarter 2015 Conference Call and Webcast Scheduled

OKS Q2 2015 Earnings Call NR Exhibit 99.1 July 15, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners Second-quarter 2015 Conference Call and Webcast Scheduled TULSA, Okla. ? July 15, 2015 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will release their second-quarter 2015 earnings after the market closes on Aug.

ONEOK Partners OKS Q2 2015 EARNINGS CALL (Current Report/Significant Event)

OKS Q2 2015 Earnings Call UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

OKS / ONEOK Partners, L.P. / KAYNE ANDERSON CAPITAL ADVISORS LP - KAYNE ANDERSON CAPITAL ADVISORS, LP SC 13GA 7-9-2015 (ONEOK PARTNERS, LP) Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.1) ONEOK PARTNERS LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) 68268N103 (CUSIP Number) Check the following box if a fee is being paid with this statement ☐. (A fee is not required only if the filing person: (1) has a previous statement on

ONEOK Partners Raises Approximately $277 Million Through ATM Equity Program

OKS ATM Equity Program NR Exhibit 99.1 July 1, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Raises Approximately $277 Million Through ATM Equity Program TULSA, Okla. ? July 1, 2015 ? ONEOK Partners, L.P. (NYSE: OKS) today announced that it sold approximately 7.2 million common units totaling approximately $277 million through its at-the-mar

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) July 1, 2015 (Date of earliest event reported) July 1, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Employ

ONEOK Partners to Present at Credit Suisse MLP and Energy Logistics Conference

OKS Credit Suisse MLP 2015 NR Exhibit 99.1 June 22, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners to Present at Credit Suisse MLP and Energy Logistics Conference TULSA, Okla. ? June 22, 2015 ? ONEOK Partners, L.P. (NYSE: OKS) will present at the Credit Suisse MLP and Energy Logistics Conference on Wednesday, June 24, 2015, in New York

ONEOK Partners OKS CREDIT SUISSE MLP CONF 2015 (Current Report/Significant Event)

OKS Credit Suisse MLP Conf 2015 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Regulation FD Disclosure, Financial Statements and Exhibits

OKS Wells Fargo Fixed-Income Conf 2015 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

ONEOK and ONEOK Partners to Present at Wells Fargo “Kick the Tires” Fixed-Income Conference

OKS Wells Fargo Fixed-Income 2015 NR Exhibit 99.1 June 2, 2014 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners to Present at Wells Fargo ?Kick the Tires? Fixed-Income Conference TULSA, Okla. ? June 2, 2015 - ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will present at the Wells Fargo ?Kick the Tires? Fixed-Income Con

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) May 20, 2015 (Date of earliest event reported) May 19, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Employ

ONEOK Partners to Present at National Association of Publicly Traded Partnerships Investor Conference

OKS NAPTP Conference 2015 NR Exhibit 99.1 May 19, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners to Present at National Association of Publicly Traded Partnerships Investor Conference TULSA, Okla. ? May 19, 2015 ? ONEOK Partners, L.P. (NYSE: OKS) will present at the National Association of Publicly Traded Partnerships Investor Conference in O

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q X Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2015. ___ Transition Report Pursuant

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q X Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2015. OR 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 1-12202 ONEO

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 oksq12015earningsrelease.htm OKS Q1 2015 EARNINGS RELEASE UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) May 5, 2015 (Date of earliest event reported) May 5, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 9

ONEOK Partners Announces First-quarter 2015 Results; Reaffirms 2015 Financial Guidance

OKS Q1 2015 Earnings Release NR Exhibit 99.1 May 5, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces First-quarter 2015 Results; Reaffirms 2015 Financial Guidance TULSA, Okla. ? May 5, 2015 ? ONEOK Partners, L.P. (NYSE: OKS) today announced first-quarter 2015 net income attributable to ONEOK Partners of $145.6 million, or 21 cents per

Michael G. Hutchinson Joins ONEOK Partners Board of Directors

OKS Director Appointment NR Exhibit 99.1 April 16, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 Michael G. Hutchinson Joins ONEOK Partners Board of Directors TULSA, Okla. – April 16, 2015 –The board of directors of ONEOK Partners, L.P. (NYSE: OKS) today announced that Michael G. Hutchinson has joined the board, effective April 16, 2015. With the add

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) April 17, 2015 (Date of earliest event reported) April 16, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Em

ONEOK Partners Declares Quarterly Distribution

OKS Q1 2015 Distribution NR Exhibit 99.2 April 16, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners Declares Quarterly Distribution TULSA, Okla. ? April 16, 2015 ? The board of directors of the general partner of ONEOK Partners, L.P. (NYSE: OKS) today declared a quarterly cash distribution of 79 cents per unit, effective for the first qua

ONEOK and ONEOK Partners First-quarter 2015 Conference Call and Webcast Scheduled

OKS Q1 2015 Earnings Call NR Exhibit 99.1 April 14, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK and ONEOK Partners First-quarter 2015 Conference Call and Webcast Scheduled TULSA, Okla. ? April 14, 2015 ? ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will release their first-quarter 2015 earnings after the market closes on May 5

ONEOK Partners OKS Q1 2015 EARNINGS CALL (Current Report/Significant Event)

OKS Q1 2015 Earnings Call UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

ONEOK Partners OKS VAN LUNSEN RETIREMENT (Current Report/Significant Event)

OKS Van Lunsen Retirement UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

ONEOK Partners and Fermaca to Construct an Export Natural Gas Pipeline from West Texas to Mexico Project Will Expand the Partnership’s Export Capabilities

OKS Announces Roadrunner NR Exhibit 99.1 April 1, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Stephanie Higgins 918-591-5026 ONEOK Partners and Fermaca to Construct an Export Natural Gas Pipeline from West Texas to Mexico Project Will Expand the Partnership?s Export Capabilities TULSA, Okla. ? April, 1, 2015 ? ONEOK Partners, L.P. (NYSE: OKS) today announced that it has entered

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Date of report) April 3, 2015 (Date of earliest event reported) April 1, 2015 ONEOK PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction (Commission (IRS Empl

Thirteenth Supplemental Indenture, dated March 20, 2015, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 3.80% Senior Notes due 2020 (incorporated by reference to Exhibit 4.2 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed on March 20, 2015 (File No. 1-12202)).

EX-4.2 Exhibit 4.2 Execution Version ONEOK PARTNERS, L.P. Issuer ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP Guarantor and WELLS FARGO BANK, N.A. Trustee THIRTEENTH SUPPLEMENTAL INDENTURE Dated as of March 20, 2015 to INDENTURE relating to Senior Debt Securities Dated as of September 25, 2006 3.80% Senior Notes due 2020 TABLE OF CONTENTS Page ARTICLE 1 Relation to Indenture; Definitions 1 SECT

Fourteenth Supplemental Indenture, dated March 20, 2015, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 4.90% Senior Notes due 2025 (incorporated by reference to Exhibit 4.3 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed on March 20, 2015 (File No. 1-12202)).

EX-4.3 Exhibit 4.3 Execution Version ONEOK PARTNERS, L.P. Issuer ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP Guarantor and WELLS FARGO BANK, N.A. Trustee FOURTEENTH SUPPLEMENTAL INDENTURE Dated as of March 20, 2015 to INDENTURE relating to Senior Debt Securities Dated as of September 25, 2006 4.90% Senior Notes due 2025 TABLE OF CONTENTS Page ARTICLE 1 Relation to Indenture; Definitions 1 SECT

ONEOK Partners 8-K (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): March 20, 2015 ONEOK Partners, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction of incorporation) (Commission F

ONEOK Partners FORM 8-K (Current Report/Significant Event)

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report: March 19, 2015 Date of earliest event reported: March 17, 2015 ONEOK Partners, L.P. (Exact name of registrant as specified in its charter) Delaware 1-12202 93-1120873 (State or other jurisdiction of incorpora

ONEOK Partners Announces $800 Million Notes Offering

EX-99.1 Exhibit 99.1 News March 17, 2015 Analyst Contact: T.D. Eureste 918-588-7167 Media Contact: Brad Borror 918-588-7582 ONEOK Partners Announces $800 Million Notes Offering TULSA, Okla. ? March 17, 2015 ? ONEOK Partners, L.P. (NYSE: OKS) today announced that it has priced an offering to sell $800 million of senior notes, consisting of $300 million of five-year senior notes at a coupon of 3.8 p

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) 3.80% Notes due 2020 $300,000,000 $34,860 Guarantee of 3.80% Notes due 2020 (2) (2) 4.90% Notes due 202

Final Prospectus Supplement Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

ONEOK PARTNERS, L.P. Underwriting Agreement

EX-1.1 Exhibit 1.1 EXECUTION VERSION ONEOK PARTNERS, L.P. Underwriting Agreement March 17, 2015 J.P. Morgan Securities LLC Deutsche Bank Securities Inc. Mitsubishi UFJ Securities (USA), Inc. U.S. Bancorp Investments, Inc. As Representatives of the Underwriters named in Schedule II hereto c/o J.P. Morgan Securities LLC 383 Madison Avenue New York, NY 10179 Ladies and Gentlemen: ONEOK Partners, L.P.

ONEOK PARTNERS, L.P. PRICING TERM SHEET $300,000,000 3.80% Senior Notes due 2020 $500,000,000 4.90% Senior Notes due 2025 Issuer: ONEOK Partners, L.P. Guarantor: ONEOK Partners Intermediate Limited Partnership Security Type: Senior Notes Ratings:* Mo

Filed Pursuant to Rule 433 Registration No. 333-183287 March 17, 2015 ONEOK PARTNERS, L.P. PRICING TERM SHEET $800,000,000 $300,000,000 3.80% Senior Notes due 2020 $500,000,000 4.90% Senior Notes due 2025 Issuer: ONEOK Partners, L.P. Guarantor: ONEOK Partners Intermediate Limited Partnership Security Type: Senior Notes Ratings:* Moody?s: Baa2 / S&P: BBB Minimum Denomination: $2,000 and whole multi

ONEOK PARTNERS, L.P. PRICING TERM SHEET $300,000,000 3.80% Senior Notes due 2020 $500,000,000 4.90% Senior Notes due 2025 Issuer: ONEOK Partners, L.P. Guarantor: ONEOK Partners Intermediate Limited Partnership Security Type: Senior Notes Ratings:* Mo

FWP 1 d888876dfwp.htm FREE WRITING PROSPECTUS Filed Pursuant to Rule 433 Registration No. 333-183287 March 17, 2015 ONEOK PARTNERS, L.P. PRICING TERM SHEET $800,000,000 $300,000,000 3.80% Senior Notes due 2020 $500,000,000 4.90% Senior Notes due 2025 Issuer: ONEOK Partners, L.P. Guarantor: ONEOK Partners Intermediate Limited Partnership Security Type: Senior Notes Ratings:* Moody’s: Baa2 / S&P: BB

SUBJECT TO COMPLETION, DATED MARCH 17, 2015

Preliminary Prospectus Supplement Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No.