Document:

Certificate of Correction

 Exhibit 4.2 
 CERTIFICATE OF CORRECTION 
 TO THE SECRETARY OF STATE OF OKLAHOMA: 
 The undersigned corporation, for the purpose of correcting its amended and restated certificate of incorporation as that instrument was filed in the
Office of the Secretary of State of Oklahoma on May 15, 2008, pursuant to Section 1007 of the Oklahoma General Corporation Act (as amended, the “OGCA”), hereby certifies: 
 1. The name of the corporation as it appears on the records of the Secretary of State of the State of Oklahoma is: “ONEOK, Inc.” 
 2. An Amended and Restated Certificate of Incorporation (the “Certificate”) was filed with the Secretary of State of the State of Oklahoma on
May 15, 2008, and the Certificate requires correction as permitted by Section 1007(F) of the OGCA. 
 3. The inaccuracy or defect
of the Certificate to be corrected is the inadvertent omission as exhibits thereto of two Certificates of Designation and the inadvertent omission of a reference to such Certificates of Designation in Article Fourth of the Certificate. 

4. The Certificate is corrected first by adding the following paragraph after paragraph 1(a) of Article Fourth: 
 “(b) Designations. Of the Preferred Stock, 20,000,000 shares have been designated as Convertible Preferred Stock, Series A, 30,000,000 have
been designated as Convertible Preferred Stock, Series B and 1,000,000 shares have been designated as Series C Participating Preferred Stock. The Certificate of Designation for the Convertible Preferred Stock, Series A and Convertible Preferred
Stock, Series B is attached hereto as Exhibit A, and the Certificate of Designation for the Series C Participating Preferred Stock is attached hereto as Exhibit B, and the voting powers, designations, preferences and relative,
participating, optional or other special rights, and the qualifications, limitations or restrictions for each of the Convertible Preferred Stock, Series A, the Convertible Preferred Stock, Series B and the Series C Participating Preferred Stock
contained in such Certificates of Designation are incorporated herein by reference.” 

 5. The Certificate is secondly corrected by attaching the following to the Certificate as Exhibit A:

 EXHIBIT A 
 CERTIFICATE
OF THE DESIGNATIONS, POWERS, PREFERENCES AND RELATIVE, 
 PARTICIPATING, OPTIONAL OR OTHER RIGHTS, AND THE QUALIFICATIONS, 
 LIMITATIONS OR RESTRICTIONS THEREOF, OF 
 CONVERTIBLE PREFERRED STOCK 
 OF 
 WAI, INC. 
 Pursuant to Section 1032 of the 
 General Corporation Act of the State of Oklahoma 
 WAI, INC., an Oklahoma corporation
(the “Corporation”), does hereby certify that the Board of Directors of the Corporation duly adopted the following resolution, at a meeting duly convened and held on November 25, 1997, in respect of two series of Preferred
Stock, par value $0.01 per share, of the Corporation, pursuant to authority conferred upon the Board by Article Fourth of the Certificate of Incorporation of the Corporation and in accordance with Section 1032 of the General Corporation Act of
the State of Oklahoma: 
 BE IT RESOLVED, that the issuance of two series of Preferred Stock of the Corporation is hereby authorized, and the
designation, amount, powers, preferences and relative, participating, optional and other special rights and qualifications, limitations and restrictions thereof, of the shares of such series of Preferred Stock of the Corporation, are hereby fixed as
follows: 
 1. Designation; Class and Amount; Certain Definitions. The two series of Preferred Stock, the issuance of which is hereby
authorized, shall comprise twenty million (20,000,000) shares the distinctive serial designation of which shall be “Preferred Stock, Series A”, which is sometimes herein referred to as “Convertible Preferred Stock,
Series A” and thirty million (30,000,000) shares the distinctive serial designation of which shall be “Preferred Stock, Series B”, which is sometimes herein referred to as “‘Convertible Preferred
Stock, Series B” and, together with the Convertible Preferred Stock, Series A, the “Convertible Preferred Stock”. Each share of Convertible Preferred Stock, Series A shall be identical in all respects with all
other shares of Convertible Preferred Stock, Series A and each share of Convertible Preferred Stock, Series B shall be identical in all respects with all other shares of Convertible Preferred Stock, Series B. The number of shares of
Convertible Preferred Stock which are purchased or otherwise acquired by the Corporation or converted into Common Stock shall be cancelled and shall revert to authorized but unissued shares of Convertible Preferred Stock undesignated as to series.
Certain capitalized terms used herein have the meanings specified therefor in Section 10 below. 

 2. Dividends; Priority. 
 (a) (i) Payments of Dividend: Convertible Preferred Stock, Series A. Each Holder of shares of Convertible Preferred Stock, Series A,
shall be entitled to receive, when and if declared by the Board of Directors, in respect of each share of Convertible Preferred Stock, Series A, out of the funds of the Corporation legally available therefor, quarterly cash dividend payments
for each Dividend Period or portion thereof during which such share of Convertible Preferred Stock, Series A is outstanding. Such dividend payments shall be made: (A) during the First Dividend Stage, in an amount determined by multiplying
(x) the dividend amount declared in respect of each share of the Corporation’s common stock, par value $0.01 per share (the “Common Stock”) for such Dividend Period (such amount payable being adjusted appropriately as set
forth in Section 7(d) to reflect any stock split, stock dividend, reverse stock split, reclassification or any transaction with a comparable effect upon the Common Stock), times (y) 1.5; and (B) during the Second Dividend Stage, in an
amount determined by multiplying (x) the dividend amount declared in respect of each share of Common Stock of the Corporation for such Dividend Period (such amount payable being adjusted appropriately as set forth in Section 7(d) to
reflect any stock split, stock dividend, reverse stock split. reclassification or any transaction with a comparable effect upon the Common Stock), times (y) 1.25, provided, however, that in no event during either the First or the Second
Dividend Stage shall the aggregate annual dividend amount payable in respect of each share of Convertible Preferred Stock, Series A be less than $1.80. No interest, or sum of money in lieu of interest, shall be payable in respect of any
dividend payment or payments on shares of Convertible Preferred Stock, Series A which are not paid. 
 (ii) Payments of
Dividend: Convertible Preferred Stock, Series B. Each Holder of shares of Convertible Preferred Stock, Series B, shall be entitled to receive, when and if declared by the Board of Directors, in respect of each share of Convertible Preferred
Stock, Series B, out of the funds of the Corporation legally available therefor, quarterly cash dividend payments for each Dividend Period or portion thereof during which such share of Convertible Preferred Stock, Series B is outstanding.
Such dividend payments shall be made in an amount determined by multiplying (x) the dividend amount declared in respect of each share of Common Stock of the Corporation for such Dividend Period (such amount payable being adjusted appropriately
as set forth in Section 7(d) to reflect any stock split, stock dividend, reverse stock split, reclassification or any transaction with a comparable effect upon the Common Stock) times (y) 1.25, provided, however, that in no
event during the First Dividend Stage, shall the aggregate annual dividend amount payable in respect of each share of Convertible Preferred Stock, Series B be less than $1.50 and provided, further, that in no event during the
Second Dividend Stage, shall the aggregate annual dividend amount payable in respect of each share of Convertible Preferred Stock, Series B be less than $1.80. No interest or sum of money in lieu of interest shall be payable in respect of any
dividend payment or payments on shares of Convertible Preferred Stock, Series B which are not paid. 

 (b) Payment and Record Dates. Dividends accrued on the Convertible Preferred Stock in respect of
each Dividend Period shall be payable, when and if declared by the Board of Directors, in arrears prior to or concurrently with each date of payment (each such date, a “Dividend Payment Date”) by the Corporation of quarterly cash
dividends on the Common Stock in respect of such Dividend Period; provided, however, that if any such day is not a Business Day the applicable Dividend Payment Date shall be the next succeeding day that is a Business Day; and
provided, further that if no quarterly cash dividends are paid on the Common Stock in respect of any such Dividend Period, the Dividend Payment Date shall mean such date as may be determined by the Board of Directors within three
months following the end of such Dividend Period. Dividends on the Convertible Preferred Stock shall accrue based on the then-current dividend amount on a daily basis from the commencement of each Dividend Period. Dividends will cease to accrue in
respect of any shares of Convertible Preferred Stock on the Surrender Date (as defined below) in respect of a mandatory conversion pursuant to Section 7(c) or on the Surrender Date in respect of a voluntary conversion pursuant to
Section 7(a). Dividends payable on the Convertible Preferred Stock for any Dividend Period constituting less than a full fiscal quarter shall be computed ratably on the basis of a 360-day year or 12 30-day months. Dividends for any Dividend
Period shall not be cumulative to the extent not paid in full on each Dividend Payment Date. Dividends on the Convertible Preferred Stock in respect of any Dividend Period unpaid as of the Dividend Payment Date for such Dividend Period shall
permanently remain unpaid. The foregoing notwithstanding, dividends on account of arrears for any past Dividend Periods may be declared and paid at any time, without reference to any regular Dividend Payment Date. Dividends shall be payable to the
Holders as they appear on the Stock Books not exceeding 40 days preceding the relevant Dividend Payment Date. Dividends shall be paid in cash, by wire transfer in immediately available funds to the accounts designated by the respective Holders in
written notices given to the Corporation at least five Business Days prior to the payment date or by such other means as may be agreed to by the Corporation and the respective Holders, such wire transfer to be effected for good value on or before
the Dividend Payment Date. 
 (c) Dividend Rate: Calculation of Dividend Rate: Notice. 
 (i) The First Dividend Stage shall commence upon the initial issuance of Convertible Preferred Stock and shall cease upon the fifth
anniversary of the Closing Date. 
 (ii) The Second Dividend Stage shall commence upon the fifth anniversary of the Closing
Date and shall continue for so long as any shares of Convertible Preferred Stock shall remain outstanding. 
 (iii)
Notwithstanding anything in this Certificate of Designations to the contrary, the holders of the Convertible Preferred Stock shall participate in all Special Dividends on a share for share basis with the holders of Common Stock, as if shares of the
Convertible Preferred Stock were converted into Common Stock immediately prior to the record date with respect to each such Special Dividend, and Special Dividends shall not be taken into account in determining the annual dividend rate of the
Convertible Preferred Stock for purposes of Section 2(a) hereof. 

 (d) The Corporation will cause written notice of each dividend amount on the Convertible Preferred Stock
to be given to each Holder within five Business Days after it is determined by the Board of Directors. Notwithstanding the foregoing, if the Corporation shall not declare quarterly cash dividends on its Common Stock for any Dividend Period, the
dividend amount on the Convertible Preferred Stock for purposes of Section 2(a) hereof shall be computed by reference to the dividend amount on the Common Stock for the most recent Dividend Period in respect of which dividends (other than
Special Dividends) were paid. 
 (e) Priority as to Dividends; Restriction on Dividends, Redemption, etc. The Corporation shall not,
for so long as the Convertible Preferred Stock shall remain outstanding, directly or indirectly, declare or pay or set apart for payment any dividends (including cumulative dividends) or make (or permit any Subsidiary to make) any other
distributions on, or payment on account of the purchase, redemption or other retirement or acquisition for value of the Common Stock, any other capital stock of the Corporation ranking junior to the Convertible Preferred Stock as to dividends or as
to distribution of assets upon any liquidation, dissolution or winding up of the affairs of the Corporation or any options, warrants or rights to purchase or acquire Common Stock or any such capital stock or any securities convertible into or
exchangeable for shares of Common Stock or any such capital stock, except that such payment of dividends and such other distributions and payments may be made so long as full dividends payable on the Convertible Preferred Stock for the Dividend
Period commencing immediately prior to the date of such dividend, distribution or other payment have been or are concurrently paid (or a sum sufficient for the payment thereof set apart for such payment subject to declaration thereof);
provided, however, that the foregoing restrictions shall not apply to: (i) any dividend payable solely in shares of any stock of the Corporation ranking, as to dividends and as to distribution of assets upon any liquidation,
dissolution or winding-up of the affairs of the Corporation, junior to the Convertible Preferred Stock (or payable solely in options, warrants or rights to purchase or acquire any such stock) or (ii) any distribution pursuant to any employee or
director incentive or benefit plan or arrangement (including any employment, severance or consulting agreement) of the Corporation or any Subsidiary heretofore or hereafter adopted; or (iii) any distribution pursuant to a redemption, at the
stated redemption price, of any rights granted to Holders of Common Stock pursuant to a stockholder rights plan; or (iv) any dividend approved in writing by the holders of at least 66 2/3 percent of all shares of Convertible Preferred Stock
then outstanding. Holders of shares of Convertible Preferred Stock shall be entitled to receive dividends in accordance with the foregoing clause (a) of this Section 2 in preference to and in priority over any dividend upon any securities
junior to the Convertible Preferred Stock. 
 3. Voting Rights. 
 (a) Holders of shares of Convertible Preferred Stock, voting together as a single class with holders of shares of Common Stock (and with holders of any
other class or series of stock which may similarly be entitled to vote with the holders of Common Stock) shall be entitled at any meeting of stockholders called for the purpose of voting on (or acting by written consent without need of any advance
notice) Opt-out Amendment (as defined in the Merger Agreement) (ii) any proposed amendment to the Certificate of Incorporation or By-Laws which would reasonably have the effect of modifying in any way the Opt-out Amendment or would reasonably
cause the Corporation to become subject to (a) the Control Share Acquisition Statute (as defined in the Merger Agreement) or (b) any other provisions which are substantially similar to the Control Share Acquisition Statute or
(iii) any transaction or series of transactions submitted to a vote of the stockholders of the Corporation which, if consummated, would 

 
constitute a Change in Control, to vote with respect to such transaction(s). When voting together with the holders of shares of Common Stock on any such
transaction(s), each share of Convertible Preferred Stock shall carry, as of the record date applicable to such vote, a number of votes equal to the number of votes carried in the aggregate by the number of shares of Common Stock issuable upon
conversion of one share of Convertible Preferred Stock into Common Stock in accordance with Section 7 below. 
 (b) Except as provided
by this Section 3 and Sections 4 and 8 below, or as otherwise may be required by applicable law, the Holders of Convertible Preferred Stock shall not be entitled, by virtue of their being Holders thereof, to vote in any election of directors to
the Board of the Corporation, or with respect to any other matter submitted to the stockholders of the Corporation. Where a vote of the Holders, voting as a separate class, may be required by applicable law or by this Section 3 or
Section 4 or 8, each share of Convertible Preferred Stock Series A and each share of Convertible Preferred Stock, Series B, shall carry one vote. 
 4. Covenants. 
 So long as any shares of Convertible Preferred Stock are outstanding, the Corporation
covenants and agrees with and for the benefit of the Holders of such shares that without the affirmative vote or consent of Holders of 66 2/3 percent of all shares of the Convertible Preferred Stock then outstanding, voting as a separate class in
person or by proxy or by written consent delivered to the Secretary of the Corporation, the Corporation shall not amend, alter or repeal any provision of the Certificate of Incorporation of the Corporation, this Certificate of Designations, or any
amendment or supplement to any of the foregoing, so as to affect adversely the rights, powers, preferences, qualifications, limitations or restrictions of any Holder of Convertible Preferred Stock. 
 5. Redemption. Shares of the Convertible Preferred Stock shall not be redeemable, in whole or in part, in any event, at the option of the
Corporation. 
 6. Liquidation Preference. In the event of any voluntary or involuntary liquidation, dissolution or winding up of the
affairs of the Corporation, the Holders of shares of Convertible Preferred Stock then outstanding shall be entitled to be paid out of the assets of the Corporation available for distribution to its stockholders an amount per share in cash equal to
the amount that would be payable on one share of Common Stock (such amount payable being adjusted appropriately to reflect any stock split, stock dividend, reverse stock split, or any transaction with comparable effect upon the Common Stock and
assuming conversion of all shares of Convertible Preferred Stock then outstanding into shares of Common Stock immediately prior to such liquidation, dissolution or winding up), plus all dividends then due on the Convertible Preferred Stock (the
“Liquidation Preference”). This entitlement of the Holders of shares of Convertible Preferred Stock shall be satisfied before any similar payment shall be made or any assets distributed to the holders of the Common Stock or any
other security junior in rank to the Convertible Preferred Stock as to distribution of assets upon such dissolution, liquidation or winding up. If the assets of the Corporation are not sufficient to pay in full the liquidation payments payable to
all of the Holders of the outstanding shares of Convertible Preferred Stock, then the Holders of all such shares shall share ratably in such distribution of assets in accordance with the respective liquidation preferences 

 
to which they are entitled. For the purposes of this section, neither the voluntary sale, conveyance, exchange or transfer (for cash, shares of stock,
securities or other consideration) of all or substantially all of the property or assets of the Corporation nor the consolidation or merger of the Corporation with one or more other corporations shall be deemed to be a liquidation, dissolution or
winding up, voluntary or involuntary; unless such voluntary sale, conveyance, exchange or transfer shall be in connection with a dissolution or winding up of the business of the Corporation. 
 7. Conversion. (a) Conversion Right. At any time after the occurrence of a Regulatory Change, each share of Convertible Preferred
Stock shall be convertible at the option of the Holder thereof into one fully paid and nonassessable share of Common Stock (as adjusted pursuant to Section 7(d) hereof). 
 (b) (i) Conversion Procedures. Any Holder of shares of Convertible Preferred Stock desiring to convert such shares into Common Stock shall
surrender the certificate(s) evidencing such shares of Convertible Preferred Stock of the Holder at the office of the transfer agent appointed for the purpose of such conversion by the Corporation. Such surrendered certificate(s), if the Corporation
shall so require, shall be duty endorsed to the Corporation or in blank, or accompanied by proper instruments of transfer to the Corporation or in blank, and, in the case of any conversion other than a mandatory conversion pursuant to clause
(c) of this Section 7 below, shall be accompanied by written notice to the Corporation that the Holder elects so to convert such shares of Convertible Preferred Stock, which notice shall specify the name or names (with address or
addresses) in which the Holder wishes the certificate(s) evidencing shares of Common Stock to be issued in exchange for that certificate or those certificates so surrendered. 
 (ii) The Corporation shall, within five Business Days after such surrender of certificates evidencing shares of Convertible Preferred
Stock accompanied by written notice and in compliance with any other conditions contained herein, issue and deliver, or cause to be issued and delivered, to the person(s) for whose account such certificate(s) evidencing shares of Convertible
Preferred Stock were so surrendered, or to the nominee(s) of such Person(s), certificates representing the number of full shares of Common Stock to which such Person shall be entitled pursuant to the then-applicable conversion rate. Such conversion
shall be deemed to have been made on the date of such surrender of the certificate(s) evidencing shares of Convertible Preferred Stock to be converted (the “Surrender Date”) and the Person(s) entitled to receive the Common Stock
deliverable upon conversion of such Convertible Preferred Stock shall be treated for all purposes as the record holder(s) of such Common Stock on such date and thereafter. Conversion of Preferred Stock may otherwise be achieved in accordance with
such procedures as the Corporation and a majority of the Holders may agree. 
 (iii) In the event that fewer than all shares
of Convertible Preferred Stock represented by a surrendered certificate are to be converted hereunder, a new certificate shall be issued at the Corporation’s expense representing the shares of Convertible Preferred Stock not so converted.

 (iv) Effective on the day following the Surrender Date, dividends shall cease to accrue on any shares of Convertible
Preferred Stock surrendered for conversion, such shares of Convertible Preferred Stock shall no longer be deemed outstanding, all rights of the Holders thereof as preferred stockholders of the Corporation shall cease (other than the right to 

 
receive dividends declared or otherwise payable, to Holders of Convertible Preferred Stock on a record date prior to the Surrender Date) and thereupon the
certificate(s) theretofore representing shares of Convertible Preferred Stock shall represent only the right to receive the Common Stock deliverable upon conversion in respect thereof. 
 (v) If any shares of Convertible Preferred Stock are surrendered for conversion subsequent to the record date preceding a Dividend Payment
Date but on or prior to such Dividend Payment Dare (except shares called for redemption on a redemption date between such record date and such Dividend Payment Date), the Holder of such shares at the close of business on such record date shall be
entitled to receive the dividend payable on such shares on such Dividend Payment Date notwithstanding the conversion thereof. 
 (c)
Mandatory Conversion. Immediately upon the transfer of Beneficial Ownership of any share of Convertible Preferred Stock to any Person other than the Shareholder or an Affiliate of the Shareholder, such share of Convertible Preferred Stock
shall convert into one fully-paid and non-assessable share of Common Stock (as adjusted pursuant to Section 7(d)), in accordance with the procedures provided in clause (b) of this Section 7. 
 (d) The conversion rate shall be adjusted from time to time as follows: 
 (i) In case the Corporation shall, at any time or from time to time while any of the shares of Convertible Preferred Stock are
outstanding: (A) pay a dividend in shares of its Common Stock, (B) subdivide its outstanding shares of Common Stock into a smaller number of shares, or (C) combine its outstanding shares of Common Stock into a smaller number of
shares, the conversion rate in effect immediately prior to such action shall be adjusted so that the Holder of any shares of Convertible Preferred Stock thereafter surrendered for conversion shall be entitled to receive the number of shares of
Common Stock which such Holder would have owned or have been entitled to receive immediately following such action had such shares of Convertible Preferred Stock been converted immediately prior thereto. An adjustment made pursuant to this
Section 7(d)(i) shall become effective retroactively to immediately after the opening of business on the Business Day following the record date in the case of a dividend and shall become effective immediately after the opening of business on
the Business Day following the effective date in the case of a subdivision or combination. If, as a result of an adjustment made pursuant to this Section 7(d)(i), the Holder of any shares of Convertible Preferred Stock thereafter surrendered
for conversion shall become entitled to receive shares of two or more classes of capital stock of the Corporation, the Board of Directors (whose determination shall be conclusive) shall determine the allocation of the adjusted conversion rate
between or among shares of such classes of capital stock. 
 (ii) In case the Corporation shall, at any time or from time to
time while any of the shares of Convertible Preferred Stock are outstanding, issue rights or warrants to all holders of shares of its Common Stock entitling them to subscribe for or purchase shares of Common Stock (or securities convertible into or
exchangeable for Common Stock) at a price per share less than the current Market Price per share of Common Stock, at such record date, the conversion rate shall be adjusted so that it shall equal the rate determined by multiplying the conversion
rate in effect immediately prior to the date of issuance of such rights or warrants by a fraction, the numerator of which shall be the number of shares of Common Stock outstanding on the 

 
date of issuance of such rights or warrants plus the number of additional shares of Common Stock offered for subscription or purchase, and the denominator of
which shall be the number of shares of Common Stock outstanding on the date of issuance of such rights or warrants plus the number of shares which the aggregate offering price of the total number of shares so offered would purchase at such current
market price. For the purposes of this Section 7(d)(ii), the issuance of rights or warrants to subscribe for or purchase securities convertible into Common Stock shall be deemed to be the issuance of rights or warrants to purchase the shares of
Common Stock into which such securities are convertible at an aggregate offering price equal to the aggregate offering price of such securities plus the minimum aggregate amount (if any) payable upon conversion of such securities into shares of
Common Stock; provided, however, that if all of the shares of Common Stock subject to such rights or warrants have not been issued when such rights or warrants expire, then, the conversion rate shall promptly be readjusted to the conversion
rate which would then be in effect had the adjustment upon the issuance of such rights or warrants been made on the basis of the actual number of shares of Common Stock issued upon the exercise of such rights or warrants. The foregoing provision
shall not apply to issuances of rights pursuant to a stockholder rights plan provided that such rights are issued together with the Common Stock upon conversion of the Convertible Preferred Stock. An adjustment made pursuant to this
Section 7(d)(ii) shall become effective retroactively immediately after the record date for the determination of stockholders entitled to receive such rights or warrants. 
 (iii) In case the Corporation shall, at any time or from time to time while any of the shares of Convertible Preferred Stock are
outstanding, distribute to all holders of shares of its Common Stock evidences of its indebtedness or securities or assets (excluding cash dividends payable out of consolidated earnings or retained earnings or dividends payable in shares of Common
Stock) or rights or warrants to subscribe for securities of the Corporation or any of its subsidiaries (excluding those referred to in Section 7(d)(ii)), then in each such case the conversion rate shall be adjusted so that it shall equal the
rate determined by multiplying the conversion rate in effect immediately prior to the date of such distribution by a fraction, the numerator of which shall be the current Market Price per share of the Common Stock on the record date referred to
below, and the denominator of which shall be such current market price per share of the Common Stock less the then fair market value of the portion of the assets or evidences of indebtedness or securities or assets so distributed or of such
subscription rights or warrants applicable to one share of Common Stock. Such adjustment shall become effective retroactively immediately after the record date for the determination of stockholders entitled to receive such distribution. 

(iv) The Corporation shall be entitled at its option to make such additional adjustments in the conversion rate, in addition to those
required by subsections 7(d)(i), 7(d)(ii) and 7(d)(iii), as shall be necessary in order that any dividend or distribution in shares of stock, subdivision or combination of shares of Common Stock, issuance of rights or warrants, evidences of
indebtedness or assets (other than cash dividends payable out of consolidated earnings or retained earnings) referred to above, shall not be taxable to the Holders of shares of Convertible Preferred Stock. 

 (v) In any case in which this Section 7(d) shall require that an adjustment be made
retroactively immediately following a record date, the Corporation may elect to defer (but only for five (5) Business Days following the filing of the statement referred to in Section 7(d)(vii)) issuing to the holder of any shares of this
Series converted after such record date (A) the shares of Common Stock and other capital stock of the Corporation issuable upon such conversion over and above (B) the shares of Common Stock and other capital stock of the Corporation
issuable upon such conversion on the basis of the conversion rate prior to adjustment. 
 (vi) Notwithstanding any other
provisions of this Section 7(d), the Corporation shall not be required to make any adjustment of the conversion rate (A) in respect of any Special Dividend in which the holders of Convertible Preferred Stock participate as provided in
Section 2(c)(iii) or (B) unless such adjustment would require an increase or decrease of at least 1% in such rate (any lesser adjustment shall be carried forward and shall be made at the time of and together with the next subsequent
adjustment which, together with any adjustment or adjustments so carried forward, shall amount to an increase or decrease of at least 1% in such rate). 
 (vii) Whenever an adjustment in the conversion rate is required, the Corporation shall forthwith place on file with its Transfer Agent a statement signed by its Chief Executive Officer, Chief Financial Officer or a
Vice President and by its Secretary, Assistant Secretary, Treasurer or Assistant Treasurer, stating the adjusted conversion rate determined as provided herein. Such statements shall set forth in reasonable detail such facts as shall be necessary to
show the reason and the manner of computing such adjustment. Promptly after the adjustment of the conversion rate, the Corporation shall mail a notice thereof to each holder of shares of Convertible Preferred Stock. 
 (e) Reservation of Shares; Etc. (i) The Corporation shall at all times reserve and keep available, free from preemptive rights, out of its
authorized and unissued stock, such number of shares of its Common Stock as shall from time to time be sufficient to effect the conversion of all shares of the Convertible Preferred Stock from time to time outstanding, solely for the purpose of
effecting such conversion. The Corporation shall, from time to time, in accordance with the laws of the State of Oklahoma, increase the authorized number of shares of Common Stock if at any time the number of shares of authorized and unissued Common
Stock shall not be sufficient to permit the conversion of all the then-outstanding shares of Convertible Preferred Stock. 
 (ii) If any shares of Common Stock required to be reserved hereunder for purposes of conversion require registration with or approval of any governmental authority under any Federal or state law before such shares may be issued upon
conversion, the Corporation shall, in good faith and as expeditiously as possible, cause such shares to be duly registered or approved as the case may be. If the Common Stock is listed on the New York Stock Exchange or any other national or foreign
securities exchange, the Corporation shall, if permitted by the rules of such exchange, list and keep listed on such exchange, upon official notice of issuance, all shares of Common Stock issuable upon conversion of Convertible Preferred Stock.

 (iii) The Corporation will pay any and all taxes that may be payable in respect of the
issuance or delivery of shares of Common Stock upon conversion of shares of Convertible Preferred Stock pursuant hereto. The Corporation shall not, however, be required to pay any tax which may be payable in respect of any transfer involved in the
issuance and delivery of shares of Common Stock in a name other than that in which the shares of Convertible Preferred Stock so converted were registered and no such issuance or delivery shall be made unless and until the person requesting such
issuance has paid to the Corporation the amount of any such tax or has established to the satisfaction of the Corporation that such tax has been paid. 
 (f) Reclassifications, Consolidations, Mergers or Sales of Assets. In case of (i) any reclassification or change of outstanding shares of Common Stock (other than a change in par value or from par value to
no par value or from no par value to par value, or as a result of a subdivision or combination) or (ii) any consolidation or merger of the Corporation with one or more other corporations (other than a consolidation or merger in which the
Corporation is the continuing corporation and which does not result in any reclassification or change of outstanding shares of Common Stock issuable upon conversion of Convertible Preferred Stock), (iii) any sale or conveyance to another
corporation or other entity of all or substantially all of the property of the Corporation, or (iv) any other transaction which would constitute a Change in Control of the Corporation, then the Corporation, or such successor corporation or
other entity, as the case may be, shall make appropriate provision so that the holder of each share of Convertible Preferred Stock then outstanding shall have the right to convert such share into the kind and amount of shares of stock or other
securities and property receivable upon such consolidation, merger, sale, reclassification, change or conveyance by a holder of the number of shares of Common Stock into which such shares of Convertible Preferred Stock might have been converted
immediately prior to such consolidation, merger, sale, reclassification, change or conveyance, subject to adjustment which shall be as nearly equivalent as may be practicable to the adjustments provided for in Section 7(d). The provisions of
this paragraph shall apply similarly to successive consolidations, mergers, sales or conveyances. 
 8. Priority. The Convertible
Preferred Stock shall be senior in rank, both as to dividends and as to distribution of assets upon any liquidation, dissolution or winding up of the affairs of the Corporation, to the Common Stock, or any class of equity securities of the
Corporation which by its terms are junior to the Convertible Preferred Stock, and shall not be junior in rank with respect to any class or series of preferred stock that may be issued by the Corporation, unless the Holders of 66 2/3 percent of the
outstanding shares of the Convertible Preferred Stock shall consent to the creation, reclassification or authorization of any class or series of the Corporation’s capital stock ranking prior to the Convertible Preferred Stock as to dividends or
as to distributions of assets upon liquidation, dissolution or winding up of the Corporation, whether voluntary or involuntary, or any security convertible into shares of such class or series. Except as otherwise provided in this Certificate of
Designations, the Convertible Preferred Stock, Series A shall be deemed to rank on a parity with the Convertible Preferred Stock, Series B. 

 9. Notices. The Corporation shall provide notice to each Holder of any action taken or proposed to
be taken or any determination made by the Corporation and/or the Shareholder under the terms of this Certificate of Designations. Notice of any such action or determination by the Corporation and/or the Shareholder and all other notices and other
communications provided for in this Certificate of Designations shall be delivered by facsimile and by reputable overnight courier: 
  

					
		 	(a)	  	If to the Corporation, to:
			
		 		  	 WAI, Inc.
 100 West Fifth Street
 Tulsa, Oklahoma 74103
 Facsimile: (918) 588-7960
 Attn: President

			
		 		  	with a copy to:
			
		 		  	 Gable Gotwals Mock Schwabe Kihle Gaberino
 100 West
Fifth Street. Suite 1000
 Tulsa, Oklahoma 74103
 Facsimile: (918)
583-7873
 Attn: Donald H. Kihle, Esq.

			
		 		  	and
			
		 		  	 Fried, Frank, Harris, Shriver & Jacobson
 One New
York Plaza
 New York, New York 10004
 Facsimile: (212) 859-4000

 Attn: F. William Reindel, Esq.

	
	or such other address as the Corporation shall have furnished to the Holders in writing,
			
		 	(b)	  	if to a Holder and/or the Shareholder, to the address and facsimile number of such Holder listed on the Stock Books of the Corporation.

 10. Definitions. Certain capitalized terms are used herein as defined below: 
 “Affiliate” shall mean, with respect to any Person, any other Person that directly or indirectly through one or more intermediaries
controls or is controlled by or is under common control with such Person. For the purposes of this definition, “control,” when used with respect to any particular Person, means the power to direct the management and policies of such
Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the foregoing. 
 “Beneficial Owner” (and, with correlative meanings, “Beneficially Own” and, “Beneficial Ownership”) of
any interest means a Person who, together with his, her or its Affiliates, is or may be deemed a beneficial owner of such interest for purposes of Rule 13d-3 or 13d-5 under the Exchange Act of 1934, or who, together with his, her, or its Affiliates,
has the right to become such a beneficial owner of such interest (whether such right is exercisable immediately or only after the passage of time) pursuant to any agreement, arrangement or understanding, or upon the exercise, conversion or exchange
of any warrant, right or other instrument, or otherwise. 

 “Board” shall mean the Board of Directors of the Corporation in office at the applicable
time, as elected in accordance with the By-Laws of the Corporation and with the Stockholder Agreement. 
 “Business Day”
means any day other than a Saturday, a Sunday, a day on which the New York Stock Exchange is closed or a day on which state or federally chartered banking institutions in New York, New York are not required to be open. 
 “By-Laws” shall mean the By-Laws of the Corporation, in the form specified in the Merger Agreement, as they may be amended from time to
time. 
 “Certificate of Designations” means this Certificate of Designations, Powers, Preferences and Relative,
Participating, Optional or other Rights, and the Qualifications, Limitations or Restrictions Thereof, creating the Convertible Preferred Stock, Series A and Convertible Preferred Stock, Series B. 
 “Certificate of Incorporation” shall mean the Certificate of Incorporation of the Corporation, in the form specified in the Merger
Agreement, as it may be amended from time to time. 
 “Change in Control” shall mean the occurrence of any one of the
following events: 
  

	 	(1)	any Person (other than WRI and/or its Affiliates) becoming the Beneficial Owner, directly or indirectly, of Voting Securities, pursuant to the consummation of a merger,
consolidation, sale of all or substantially all of the Corporation’s assets, share exchange or similar form of corporate transaction involving the Corporation or any of its subsidiaries that requires the approval of the Corporation’s
shareholders, whether for such transaction or the issuance of securities in such transaction, so as to cause such Person’s Voting Ownership Percentage to exceed the Control Percentage (as defined below); provided, however, that
the event described in this paragraph (1) shall not be deemed to be a Change in Control if it occurs as the result of any of the following acquisitions: (A) by any employee benefit plan sponsored or maintained by the Corporation or any
Affiliate, or (B) by any underwriter temporarily holding securities pursuant to an offering of such securities; 

  

	 	(2)	 the consummation of a merger, consolidation, sale of all or substantially all of the Corporation’s assets, share exchange or similar form of corporate
transaction involving the Corporation or any of its subsidiaries that requires the approval of the Corporation’s shareholders, whether for such transaction or the issuance of securities in such transaction, unless immediately following
such transaction more than 50 percent of the total voting power of (x) the corporation resulting from such transaction, or (y) if applicable, the ultimate parent corporation that directly or indirectly has Beneficial Ownership of 100
percent of the voting securities eligible to elect directors of such resulting corporation, is represented 

	 	 
by Voting Securities that were outstanding immediately prior to such transaction (or, if applicable, shares into which such Voting Securities were converted
pursuant to such transaction), and such voting power among the holders of such Voting Securities that were outstanding immediately prior to such transaction is in substantially the same proportion as the voting power of such Voting Securities among
the holders thereof immediately prior to such transaction; or 

  

	 	(3)	the consummation of a plan of complete liquidation or dissolution of the Corporation. 

 “Closing Date” means the date of consummation of the merger of ONEOK with and into the Corporation as provided in the Merger Agreement. 
 “Code” means the Internal Revenue Code of 1986, as amended. 
 “Common Stock” has the meaning specified in Section 2(a)(i) above. 
 “Control Percentage” shall mean a Voting Ownership Percentage of 15 percent, during the period prior to a Regulatory Change, and a
Voting Ownership Percentage of 35 percent thereafter. 
 “Convertible Preferred Stock” has the meaning specified in
Section 1 above. 
 “Dividend Period” means the applicable period from (and including) the Closing Date to the end of
the first fiscal quarter after the Closing Date, and each fiscal quarter thereafter. 
 “Dividend Rate” has the meaning
specified in Section 2(c) above. 
 “First Dividend Stage” has the meaning specified in Section 2(c)(iii) above.

 “Holder” means a holder of record of a share or shares of Convertible Preferred Stock. 
 “Liquidation Preference” has the meaning specified in Section 6 above. 
 The “Market Price” for the Common Stock shall mean the average of the closing prices for such Common Stock for the twenty
(20) Trading Days immediately prior to the date on which the Market Price is being determined; provided, however, that in the event that the current per share market price of the Common Stock is determined during a period following the
announcement by the Corporation of (a) a dividend or distribution on the Common Stock payable in shares of Common Stock or securities convertible into Common Stock, or (b) any subdivision, combination or reclassification of the Common
Stock and prior to the expiration of 20 Trading Days after the ex-dividend date for such dividend or distribution, or the record date for such subdivision, combination or reclassification, then, and in each such case, the current per share market
price shall be appropriately adjusted to take into account ex-dividend trading or the effects of such subdivision, combination or reclassification. The closing price for each Trading Day shall be the last sale price, regular way, or, in case no such
sale takes place on such day, the average of the closing bid and asked prices, regular way, in either case as reported in the principal consolidated transaction reporting system of the New York 

 
Stock Exchange or, if the Common Stock is no longer listed or admitted to trading on the New York Stock Exchange, as reported in the principal consolidated
transaction reporting system with respect to the principal national securities exchange on which the Common Stock is then listed or admitted to trading or if the Common Stock is no longer listed or admitted to trading on any national securities
exchange, the last quoted price or, if not so quoted, the average of the high bid and low asked prices in the over-the-counter market, as reported by the National Association of Securities Dealers, Inc. Automated Quotations System or such other
system then in use, or, if on any such date the Common Stock is not quoted by any such organization, the average of the closing bid and asked prices as furnished by a professional market maker making a market in such security selected by a majority
of the Board or, if on any such date no market maker is making a market in such security, the fair value as determined in good faith by a majority of the Board based upon the opinion of an independent investment banking firm of recognized standing.

 “Merger Agreement” means the Agreement, dated as of December 12, 1996, between ONEOK and WRI, as amended and/or
restated from time to time. 
 “ONEOK” means Oneok, Inc., a Delaware corporation. 
 “Person” means any individual, corporation, partnership, joint venture, trust, unincorporated organization, government or any agency or
political subdivision thereof, or any other entity. 
 A “Regulatory Change” will be deemed to have occurred upon the
receipt by the Shareholder of an opinion of the Shareholder’s counsel (which counsel must be reasonably acceptable to the Corporation) to the effect that either (1) the Public Utility Holding Company Act of 1935 (the “1935
Act”) has been repealed, modified, amended or otherwise changed or (2) the Shareholder has received an exemption, or, in the unqualified opinion of such counsel, is entitled without any regulatory approval to claim an exemption, or has
received an approval or no-action letter from the Securities and Exchange Commission or its staff under the 1935 Act or has registered under the 1935 Act, or any combination of the foregoing, and as a consequence of (1) and/or (2) the
Shareholder may fully and legally exercise the rights set forth in the Shareholder Agreement which take effect in the period after a Regulatory Change has occurred. 
 “Second Dividend Stage” has the meaning specified in Section 2(c)(ii) above. 
 “Shareholder” means WRI. 
 “Shareholder Agreement” means the Shareholder Agreement, dated as of
November 26, 1997 between WAI and WRI. 
 “Special Dividend” rneans a dividend declared or paid on the Common Stock in
respect of a recapitalization, spin-off, reorganization or other extraordinary transaction of the Corporation. 
 “Stock
Books” means the stock transfer books of the Corporation relating to its Common Stock and Preferred Stock. 
 “Surrender
Date” has the meaning specified in Section 7 above. 

 “Total Voting Power” shall mean, calculated at a particular point in time, the aggregate
Votes represented by all then outstanding Voting Securities. 
 “Trading Day” shall mean a day on which the principal
national securities exchange on which the Common Stock is listed or admitted to trading is open for the transaction of business. 
 “Votes” shall mean votes entitled to be cast generally in the election of any member of the Board, as elected in accordance with the provisions of the By-Laws, not including the votes that would be able to be cast by
holders of shares of Convertible Preferred Stock upon the conversion of such shares to shares of Common Stock, unless such conversion shall occur or be deemed to occur. 
 “Voting Ownership Percentage” shall mean, calculated at a particular point in time, the Voting Power represented by the Voting Securities Beneficially Owned by the Person whose Voting Ownership
Percentage is being determined. 
 “Voting Power” shall mean, calculated at a particular point in time, the ratio, expressed
as a percentage, of (a) the Votes represented by the Voting Securities with respect to which the Voting Power is being determined to (b) Total Voting Power. 
 “Voting Securities” shall mean the Common Stock and shares of any other class of capital stock of the Corporation then entitled to vote generally in the election of any member of the Board, as elected
in accordance with the provisions of the By-Laws and shall not include the Convertible Preferred Stock (or other securities convertible into Voting Securities) prior to its conversion into Common Stock (or other Voting Securities). 
 “WRI” means Western Resources, Inc., a Kansas corporation. 
 IN WITNESS WHEREOF, WAI, INC. has caused this Certificate to be made under the seal of the Corporation and signed and attested by the undersigned
officers of the Corporation this 26th day of November, 1997. 
  

			
	WAI, INC.
		
	By:	 	/s/ John K. Rosenberg
	Name:	 	John K. Rosenberg
	Title:	 	President

 (Corporate Seal) 
  

			
	Attest:
		
	By:	 	/s/ Richard D. Terrill
	Name:	 	Richard D. Terrill
	Title:	 	Secretary

 6. The Certificate is thirdly corrected by attaching the following to the Certificate as Exhibit B:

 EXHIBIT B 
 CERTIFICATE OF DESIGNATION, PREFERENCES AND 
 RIGHTS OF SERIES C PARTICIPATING 
 PREFERRED STOCK OF ONEOK, INC. 
 (PURSUANT TO SECTION 1032 OF THE GENERAL CORPORATION ACT OF THE STATE OF OKLAHOMA) 
 We, Larry W. Brummett, Chairman, President,
and Chief Executive Officer and Deborah B. Barnes, Secretary of ONEOK, Inc. (the “Corporation”), a corporation organized and existing under the General Corporation Act of the State of Oklahoma, in accordance with the provisions of
Section 1007 thereof, DO HEREBY CERTIFY as follows: 
 That pursuant to the authority conferred upon the Board of Directors by the
Certificate of Incorporation of the said Corporation, said Board of Directors on November 26, 1997, voted to create a series of one million shares of Preferred Stock designated as Series C Participating Preferred Stock: 
 RESOLVED, that pursuant to the authority granted to and vested in the Board of Directors of this Corporation in accordance with the provisions of the
Corporation’s Certificate of Incorporation and Section 1032(g) of the General Corporation Law of the State of Oklahoma, the Board of Directors hereby creates a series of Preferred Stock of the Company and hereby states the designation and
number of shares, and fixes the relative rights, preferences and limitations thereof (in addition to the provisions set forth in the Corporation’s Certificate of Incorporation which are applicable to the Preferred Stock of all classes and
series) as follows: 
 Section 1. Designation and Amount. There shall be a series of Preferred Stock, par value $0.01 per share,
of the Corporation which shall be designated as “Series C Participating Preferred Stock,” par value $0.01 per share, and the number of shares constituting such series shall be one million. Such number of shares may be increased or
decreased by resolution of the Board of Directors or by resolution of the Executive Committee of the Board of Directors; provided, that no decrease shall reduce the number of shares of Series C Participating Preferred Stock to a number less than
that of the shares then outstanding plus the number of shares issuable upon exercise of outstanding rights, options or warrants or upon conversion of outstanding securities issued by the Corporation. 
 Section 2. Dividends and Distributions. 
 (A) Subject to the prior and superior rights of the holders of any shares of any series of Preferred Stock and Preferred Stock ranking prior and superior to the Series C Participating Preferred Stock with respect to dividends, the
holders of shares of Series C Participating Preferred Stock in preference to the holders of shares of Common Stock, par value $0.01 per share (the “Common Stock”), of the Corporation and any other junior stock, shall be entitled to
receive, when, as and if declared by the Board of Directors out of funds legally available for the purpose, quarterly dividends payable in cash on the last day of each fiscal quarter of 

 
the Corporation in each year or such other dates as the Board of Directors of the Corporation shall approve (each such date being referred to herein as a
“Quarterly Dividend Payment Date”), commencing on the first Quarterly Dividend Payment Date after the first issuance of a share or fraction of a share of Series C Participating Preferred Stock in an amount per share (rounded to the nearest
cent) equal to the greater of (a) $1.00 or (b) subject to the provision for adjustment hereinafter set forth, 100 times the aggregate per share amount of all cash dividends, and 100 times the aggregate per share amount (payable in kind) of
all non-cash dividends or other distributions other than a dividend payable in shares of Common Stock or a subdivision of the outstanding shares of Common Stock (by reclassification or otherwise), declared on the Common Stock since the immediately
preceding Quarterly Dividend Payment Date, or, with respect to the first Quarterly Dividend Payment Date, since the first issuance of any share or fraction of a share of Series C Participating Preferred Stock. In the event the Corporation shall
at any time after November 26, 1997 (the “Rights Declaration Date”) (i) declare any dividend on Common Stock payable in shares of Common Stock, (ii) subdivide (by a stock split or otherwise) the outstanding Common Stock, or
(iii) combine (by a reverse stock split or otherwise) the outstanding Common Stock into a smaller number of shares, then in each such case the amount to which holders of shares of Series C Participating Preferred Stock were entitled immediately
prior to such event under clause (b) of the preceding sentence shall be adjusted by multiplying such amount by a fraction the numerator of which is the number of shares of Common Stock outstanding immediately after such event and the
denominator of which is the number of shares of Common Stock that were outstanding immediately prior to such event. 
 (B) The Corporation
shall declare a dividend or distribution on the Series C Participating Preferred Stock as provided in paragraph (A) above at the time it declares a dividend or distribution on the Common Stock (other than a dividend payable in shares of Common
Stock); provided, that in the event no dividend or distribution shall have been declared on the Common Stock during the period between any Quarterly Dividend Payment Date and the next subsequent Quarterly Dividend Payment Date, a dividend of $1.00
per share on the Series C Participating Preferred Stock shall nevertheless be payable on such subsequent Quarterly Dividend Payment Date. 
 (C) So long as any shares of the Series C Participating Preferred Stock are outstanding, no dividends or other distributions shall be declared, paid or distributed, or set aside for payment or distribution, on the Common Stock unless, in
each case, the dividend required by this Section 2 to be declared on the Series C Participating Preferred Stock shall have been declared. 
 (D) The holders of the shares of the Series C Participating Preferred Stock shall not be entitled to receive any dividends or other distributions except as provided herein. 
 (E) Dividends shall begin to accrue and be cumulative on outstanding shares of Series C Participating Preferred Stock from the Quarterly Dividend Payment
Date next preceding the date of issue of such shares of Series C Participating Preferred Stock unless the date of issue of such shares is prior to the record date for the first Quarterly Dividend Payment Date, in which case dividends on such shares
shall begin to accrue from the date of issue of such shares, or unless the date of issue is a Quarterly Dividend Payment Date or is a date after the record date for the determination of holders of shares of Series C Participating Preferred Stock
entitled to receive a 

 
quarterly dividend and before such Quarterly Dividend Payment Date in either of which events such dividends shall begin to accrue and be cumulative from such
Quarterly Dividend Payment Date. Accrued but unpaid dividends shall not bear interest. Dividends paid on the shares of Series C Participating Preferred Stock in an amount less than the total of such dividends at the time accrued and payable on such
shares shall be allocated pro rata on a share-by-share basis among all such shares at the time outstanding. The Board of Directors may fix a record date for the determination of holders of shares of Series C Participating Preferred Stock entitled to
receive payment of a dividend or distribution declared thereon, which record date shall be no more than sixty (60) days prior to the date fixed for the payment thereof. 
 Section 3. Voting Rights. The holders of shares of Series C Participating Preferred Stock shall have the following voting rights: 

(A) Subject to the provision for adjustment hereinafter set forth, each share of Series C Participating Preferred Stock shall entitle the holder
thereof to 100 votes on all matters submitted to a vote of the stockholders of the Corporation. In the event the Corporation shall at any time after the Rights Declaration Date (i) declare any dividend on Common Stock payable in shares of
Common Stock, (ii) subdivide (by a stock split or otherwise) the outstanding Common Stock, or (iii) combine (by a reverse stock split or otherwise) the outstanding Common Stock into a smaller number of shares, then in each such case the
number of votes per share to which holders of shares of Series C Participating Preferred Stock were entitled immediately prior to such event shall be adjusted by multiplying such number by a fraction the numerator of which is the number of shares of
Common Stock outstanding immediately after such event and the denominator of which is the number of shares of Common Stock that were outstanding immediately prior to such event. 
 (B) Except as otherwise provided herein or by law, the holders of shares of Series C Participating Preferred Stock and the holders of shares of Common
Stock shall vote together as one class on all matters submitted to a vote of stockholders of the Corporation. 
 (C) (i) If at any time
dividends on any Series C Participating Preferred Stock shall be in arrears in an amount equal to at least six (6) full quarterly dividends (whether or not declared and whether or not consecutive) thereon, the occurrence of such contingency
shall mark the beginning of a period (herein called a “default period”) which shall extend until such time when all accrued and unpaid dividends for all previous quarterly dividend periods and for the current quarterly dividend period on
all shares of Series C Participating Preferred Stock then outstanding shall have been declared and paid or set apart for payment. During each default period, all holders of Preferred Stock (including holders of the Series C Participating
Preferred Stock) with dividends in arrears in an amount equal to at least six (6) full quarterly dividends (whether or not declared and whether or not consecutive) thereon, voting as a class, irrespective of series, shall have the right to
elect two (2) Directors. 
 (ii) During any default period, such voting right of the holders of Series C Participating
Preferred Stock may be exercised initially at a special meeting called pursuant to subparagraph (C)(iii) of this Section 3 or at any annual meeting of stockholders, and thereafter at annual meetings of stockholders; provided, that neither such
voting right nor the right of the holders of any other series of Preferred Stock or Preferred Stock, if any, to increase, in certain cases, the authorized number of Directors shall be 

 
exercised unless the holders of one-third (1/3) in number of shares of Preferred Stock outstanding shall be present in person or by proxy. The absence
of a quorum of the holders of Common Stock shall not affect the exercise by the holders of Preferred Stock of such voting right. At any meeting at which the holders of Preferred Stock shall exercise such voting right initially during an existing
default period, they shall have the right, voting as a class, to elect Directors to fill such vacancies, if any, in the Board of Directors as may then exist up to two (2) Directors or, if such right is exercised at an annual meeting, to elect
two (2) Directors. If the number which may be so elected at any special meeting does not amount to the required number, the holders of the Preferred Stock shall have the right to make such increase in the number of Directors as shall be
necessary to permit the election by them of the required number. After the holders of the Preferred Stock shall have exercised their right to elect Directors in any default period and during the continuance of such period, the number of Directors
shall not be increased or decreased except by vote of the holders of Preferred Stock as herein provided or pursuant to the rights of any equity securities ranking senior to or pari passu with the Series C Participating Preferred Stock. 

(iii) Unless the holders of Preferred Stock shall, during an existing default period, have previously exercised their right to elect
Directors, the Board of Directors may order, or any stockholder or stockholders owning in the aggregate not less than ten percent (10%) of the total number of Preferred Stock outstanding, irrespective of series, may request, the calling of a
special meeting of the holders of Preferred Stock, which meeting shall thereupon be called by the Chairman of the Board or the President of the Corporation. Notice of such meeting and of any annual meeting at which holders of Preferred Stock are
entitled to vote pursuant to this subparagraph (C)(iii) of Section 3 shall be given to each holder of record of Preferred Stock by mailing a copy of such notice to him at his last address as the same appears on the books of the Corporation.
Such meeting shall be called for a time not earlier than ten (10) days and not later than sixty (60) days after such order or request, or in default of the calling of such meeting within sixty (60) days after such order or request,
such meeting may be called on similar notice by any stockholder or stockholders owning in the aggregate not less than ten percent (10%) of the total number of shares of Preferred Stock outstanding. Notwithstanding the provisions of this
subparagraph (C)(iii) of Section 3, no such special meeting shall be called during the period within sixty (60) days immediately preceding the date fixed for the next annual meeting of the stockholders. 
 (iv) In any default period, the holders of Common Stock, and other classes of stock of the Corporation if applicable, shall continue to be
entitled to elect the whole number of Directors until the holders of Preferred Stock shall have exercised their right to elect two (2) Directors voting as a class, after the exercise of which right (x) the Directors so elected by the
holders of Preferred Stock shall continue in office until their successors shall have been elected by such holders or until the expiration of the default period, and (y) any vacancy in the Board of Directors may (except as provided in
subparagraph (C)(ii) of this Section 3) be filled by a vote of a majority of the remaining Directors theretofore elected by the holders of the class of stock which elected the Director whose office shall become vacant. References in this
paragraph (C) to Directors elected by the holders of a particular class of stock shall include Directors elected by such Directors to fill vacancies as provided in clause (y) of the foregoing sentence. 

 (v) Immediately upon the expiration of a default period, (x) the right of the
holders of Preferred Stock as a class to elect Directors shall cease, (y) the term of any Directors elected by the holders of Preferred Stock as a class shall terminate, and (z) the number of Directors shall be such number as may be
provided for in the Corporation’s Certificate of Incorporation or By-laws irrespective of any increase made pursuant to the provisions of subparagraph (C)(ii) of this Section 3 (such number being subject, however, to change thereafter in
any manner provided by law or in the Corporation’s Certificate of Incorporation or By-Laws). Any vacancies in the Board of Directors effected by the provisions of clauses (y) and (z) in the preceding sentence may be filled by a
majority of the remaining Directors. 
 (D) Except as set forth herein, holders of Series C Participating Preferred Stock shall have no
special voting rights and their consent shall not be required (except to the extent they are entitled to vote with holders of Common Stock as set forth herein) for taking any corporate action. 
 Section 4. Certain Restrictions. 
 (A) Whenever quarterly dividends or other dividends or distributions payable on the Series C Participating Preferred Stock as provided in Section 2 are in arrears, thereafter and until all accrued and unpaid dividends and
distributions, whether or not declared, on shares of Series C Participating Preferred Stock outstanding shall have been paid in full, the Corporation shall not: 
 (i) Declare or pay dividends on, make any other distributions on, or redeem or purchase or otherwise acquire for consideration any shares
of stock ranking junior (either as to dividends or upon liquidation, dissolution or winding up) to the Series C Participating Preferred Stock; 
 (ii) Declare or pay dividends on or make any other distributions on any shares of stock ranking on a parity (either as to dividends or upon liquidation, dissolution or winding up) with the Series C Participating
Preferred Stock except dividends paid ratably on the Series C Participating Preferred Stock and all such parity stock on which dividends are payable or in arrears in proportion to the total amounts to which the holders of all such shares are then
entitled; 
 (iii) Redeem or purchase or otherwise acquire for consideration shares of any stock ranking on a parity (either
as to dividends or upon liquidation, dissolution or winding up) with the Series C Participating Preferred Stock; provided, however, that the Corporation may at any time redeem, purchase or otherwise acquire shares of any such parity stock in
exchange for shares of any stock of the Corporation ranking junior (either as to dividends or upon dissolution, liquidation or winding up) to the Series C Participating Preferred Stock; or 
 (iv) Purchase or otherwise acquire for consideration any shares of Series C Participating Preferred Stock or any shares of stock ranking
on a parity with the Series C Participating Preferred Stock except in accordance with a purchase offer made in writing or by publication (as determined by the Board of Directors) to all holders of such shares upon such terms as the Board of
Directors, after consideration of the respective annual dividend rates and other relative rights and preferences of the respective series and classes, shall determine in good faith will result in fair and equitable treatment among the respective
series or classes. 

 (B) The Corporation shall not permit any subsidiary of the Corporation to purchase or otherwise acquire
for consideration any shares of stock of the Corporation unless the Corporation could, under paragraph (A) of this Section 4, purchase or otherwise acquire such shares at such time and in such manner. 
 Section 5. Reacquired Shares. Any shares of Series C Participating Preferred Stock purchased or otherwise acquired by the Corporation in any
manner whatsoever shall be retired and canceled promptly after the acquisition thereof. All such shares shall upon their cancellation become authorized but unissued shares of Preferred Stock and may be reissued as part of a new series of Preferred
Stock to be created by resolution or resolutions of the Board of Directors, subject to the conditions and restrictions on issuance set forth herein. 
 Section 6. Liquidation, Dissolution or Winding Up. 
 (A) Upon any liquidation (voluntary or
otherwise), dissolution or winding up of the Corporation, no distribution shall be made to the holders of shares of stock ranking junior (either as to dividends or upon liquidation, dissolution or winding up) to the Series C Participating
Preferred Stock unless, prior thereto, the holders of shares of Series C Participating Preferred Stock shall have received per share, the amount of $1.00, plus an amount equal to accrued and unpaid dividends and distributions thereon, whether or not
declared, to the date of such payment (the “Series C Liquidation Preference”). Following the payment of the full amount of the Series C Liquidation Preference, no additional distributions shall be made to the holders of shares of
Series C Participating Preferred Stock unless, prior thereto, the holders of shares of Common Stock shall have received an amount per share (the “Common Adjustment”) equal to the quotient obtained by dividing (i) the Series C
Liquidation Preference by (ii) 100 (as appropriately adjusted as set forth in paragraph (C) of this Section 6 below to reflect such events as stock splits, stock dividends and recapitalizations with respect to the Common Stock) (such
number in clause (ii), the “Adjustment Number”). Following the payment of the full amount of the Series C Liquidation Preference and the Common Adjustment in respect of all outstanding shares of Series C Participating Preferred Stock and
Common Stock, respectively, holders of Series C Participating Preferred Stock and holders of shares of Common Stock shall receive their ratable and proportionate share of the remaining assets to be distributed in the ratio of the Adjustment Number
to 1 with respect to such Preferred Stock and Common Stock, on a per share basis, respectively. 
 (B) In the event there are not sufficient
assets available to permit payment in full of the Series C Liquidation Preference and the liquidation preferences of all other series of Preferred Stock, if any, which rank on a parity with the Series C Participating Preferred Stock, then such
remaining assets shall be distributed ratably to the holders of such parity shares in proportion to their respective liquidation preferences. In the event there are not sufficient assets available to permit payment in full of the Common Adjustment,
then such remaining assets shall be distributed ratably to the holders of Common Stock. 

 (C) In the event the Corporation shall at any time after the Rights Declaration Date (i) declare any
dividend on Common Stock payable in shares of Common Stock, (ii) subdivide the outstanding Common Stock, or (iii) combine the outstanding Common Stock into a smaller number of shares, then in each case the Adjustment Number in effect
immediately prior to such event shall be adjusted by multiplying such Adjustment Number by a fraction the numerator of which is the number of shares of Common Stock outstanding immediately after such event and the denominator of which is the number
of shares of Common Stock that were outstanding immediately prior to such event. 
 Section 7. Consolidation, Merger, etc. If the
Corporation shall enter into any consolidation, merger, combination or other transaction in which the shares of Common Stock are exchanged for or changed into other stock or securities, cash and/or any other property, then in any such event the
shares of Series C Participating Preferred Stock shall at the same time be similarly exchanged or changed in an amount per share (subject to the provision for adjustment hereinafter set forth) equal to the Adjustment Number times the aggregate
amount of stock, securities, cash and/or any other property (payable in kind), as the case may be, into which or for which each share of Common Stock is changed or exchanged. 
 Section 8. No Redemption. The shares of Series C Participating Preferred Stock shall not be redeemable. 
 Section 9. Ranking. The Series C Participating Preferred Stock shall rank junior to all other series of the Corporation’s Preferred
Stock as to the payment of dividends and the distribution of assets, unless the terms of any such series shall provide otherwise. 
 Section 10. Fractional Shares. The Series C Participating Preferred Stock may be issued in fractions of a share which shall entitle the holder, in proportion to such holder’s fractional shares, to exercise voting rights,
receive dividends, participate in distributions and to have the benefit of all other rights of holders of Series C Participating Preferred Stock. 
 Section 11. Amendment. The Certificate of Incorporation of the Corporation shall not be further amended in any manner which would materially alter or change the powers, preferences or special rights of the Series C Participating
Preferred Stock so as to affect them adversely without the affirmative vote of the holders of a majority or more of the outstanding shares of Series C Participating Preferred Stock, voting separately as a class. 
 Section 12. Effective Date. This Certificate of Designation, Preferences and Rights of Series C Participating Preferred Stock of ONEOK, Inc.
shall be effective at 5:00 P.M., Eastern Standard Time, on ____________, 1997. 

 IN WITNESS WHEREOF, I have executed and subscribed this Certificate and do affirm the foregoing as true
under penalties of perjury this day of 26th day of November, 1997. 
  

			
	ONEOK, INC.
		
	By:	 	/s/ Larry W. Brummett
	Name:	 	Larry W. Brummett
	Title:	 	Chairman of the Board and Chief Executive Officer

  

			
	Attest:
		
	By:	 	/s/ Nancy Robertson
	Name:	 	Nancy Robertson
	Title:	 	Secretary

 IN WITNESS WHEREOF, ONEOK, Inc. has caused this
Certificate of Correction to be executed in its name by a Vice President and attested by its Assistant Secretary, this 5th day of November, 2008.

  

			
		
	By:	 	/s/ Eric Grimshaw
	Name:	 	Eric Grimshaw
	Title:	 	Vice President, Associate General Counsel and Corporate Secretary

  

			
		
	By:	 	/s/ John R. Barker
	Name:	 	John R. Barker
	Title:	 	Senior Vice President, General Counsel and Assistant SecretaryForm of Amended and Restated Change of Control Severance Agreement

 Exhibit 10.41 
 THRESHOLD PHARMACEUTICALS, INC. 
 AMENDED AND RESTATED 
 CHANGE OF CONTROL SEVERANCE AGREEMENT 
 The Amended and Restated Change of Control Severance Agreement (the “Agreement”) is made and entered into effective as of November 19, 2008 (the “Effective Date”), by and between ______________ (the
“Employee”) and Threshold Pharmaceuticals, Inc., a Delaware corporation (the “Company”). Certain capitalized terms used in this Agreement are defined in Section 1 below. 
 RECITALS 
 A. It is expected that the
Company from time to time will consider the possibility of a Change of Control. The Board of Directors of the Company (the “Board”) recognizes that such consideration can be a distraction to the Employee and can cause the Employee to
consider alternative employment opportunities. 
 B. The Board believes that it is in the best interests of the Company and its stockholders
to provide the Employee with an incentive to continue Employee’s employment and to maximize the value of the Company upon a Change of Control for the benefit of its stockholders. 
 C. In order to provide the Employee with enhanced financial security and sufficient encouragement to remain with the Company notwithstanding the
possibility of a Change of Control, the Board believes that it is imperative to provide the Employee with certain severance benefits upon the Employee’s termination of employment following a Change of Control. 
 D. The Company and Employee entered into a Change of Control and Severance Agreement dated _________ (the “Prior Agreement”) and now desire to
amend and restate the Prior Agreement to read in its entirety as set forth herein. 
 AGREEMENT 
 In consideration of the mutual covenants herein contained and the continued employment of Employee by the Company, the parties agree as follows:

 1. Definition of Terms. The following terms referred to in this Agreement shall have the following meanings: 
 a. Cause. “Cause” shall mean (i) Employee’s gross negligence or willful failure substantially to perform his or
her duties and responsibilities to the Company or deliberate violation of a Company policy; (ii) Employee’s commission of any act of fraud, embezzlement, dishonesty or any other willful misconduct that has caused or is reasonably expected
to result in material injury to the Company; (iii) unauthorized use or disclosure by Employee of any proprietary information or trade secrets of the Company or any other party to whom the 

 
Employee owes an obligation of nondisclosure as a result of his or her relationship with the Company; or (iv) Employee’s willful breach of any of
his or her obligations under any written agreement or covenant with the Company. The determination as to whether an Employee is being terminated for Cause shall be made in good faith by the Company and shall be final and binding on the Employee.

 b. Change of Control. “Change of Control” shall mean the occurrence of any of the following events:

 i. the approval by stockholders of the Company of a merger or consolidation of the Company with any other corporation,
other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the
surviving entity) more than fifty percent (50%) of the total voting power represented by the voting securities of the Company or such surviving entity outstanding immediately after such merger or consolidation; 
 ii. the approval by the stockholders of the Company of a plan of complete liquidation of the Company or an agreement for the sale or
disposition by the Company of all or substantially all of the Company’s assets; or 
 iii. any “person” (as
such term is used in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934, as amended) becoming the “beneficial owner” (as defined in Rule 13d-3 under said Act), directly or indirectly, of securities of the Company representing
50% or more of the total voting power represented by the Company’s then outstanding voting securities. 
 c.
Involuntary Termination. “Involuntary Termination” shall mean (i) without the Employee’s express written consent, a material reduction of the Employee’s duties, position or responsibilities relative to the
Employee’s duties, position or responsibilities in effect immediately prior to such reduction, or the removal of the Employee from such position, duties and responsibilities, unless the Employee is provided with comparable or greater duties,
position and responsibilities; (ii) without the Employee’s express written consent, a material reduction by the Company of the Employee’s base salary as in effect immediately prior to such reduction; (iii) without the
Employee’s express written consent, the imposition of a requirement for the relocation of the Employee to a facility or a location more than fifty (50) miles from the Employee’s current work location; (iv) any purported
termination of the Employee’s employment by the Company which is not effected for Cause or for which the grounds relied upon are not valid; or (v) the failure of the Company to obtain the assumption of this Agreement by any successors
contemplated in Section 6 below. In order to be considered an Involuntary Termination with regards to parts (i)-(iii) and (v) of this Section 1(c), (1) the Employee’s termination from employment must have occurred
within six (6) months following the initial existence of the condition giving rise to the Involuntary Termination, (2) within thirty (30) days following the initial existence of the condition giving rise to the Involuntary
Termination, the Employee must have provided the Company with notice of the existence of such condition pursuant to Section 8(b), and (3) upon receipt of the notice of the condition from Employee, the Company failed to cure the condition
within thirty (30) days. 

 d. Termination Date. “Termination Date” shall mean the effective date of
any notice of termination delivered by one party to the other hereunder. 
 2. Term of Agreement. Other than Section 4(b) of this
Agreement which shall survive indefinitely until all obligations under such Section have been satisfied, this Agreement shall terminate upon the earlier of (i) two (2) years after a Change of Control, or (ii) the date that all
obligations of the parties hereto under this Agreement have been satisfied. 
 3. At-Will Employment. The Company and the Employee
acknowledge that the Employee’s employment is and shall continue to be at-will, as defined under applicable law. If the Employee’s employment terminates for any reason, the Employee shall not be entitled to any payments, benefits, damages,
awards or compensation other than as provided by this Agreement, or as may otherwise be established under the Company’s then existing employee benefit plans or policies at the time of termination. 
 4. Severance Benefits. 
 a. Termination Following a Change of Control. If the Employee’s employment with the Company terminates as a result of an Involuntary Termination at any time within eighteen (18) months after a Change of Control, and the
Employee signs and does not revoke the release of claims pursuant to Section 7 hereto, Employee shall be entitled to the following severance benefits: 
 (1) Twelve months of Employee’s base salary and any applicable allowances as in effect as of the date of the termination or, if greater, as in effect in the year in which the Change of Control occurs, less
applicable withholding, payable in a lump sum within twenty (20) days following the effective date of the release of claims pursuant to Section 7 hereto; 
 (2) all stock options granted by the Company to the Employee prior to the Change of Control shall accelerate and become vested under the
applicable option agreements to the extent such stock options are outstanding and unexercisable at the time of such termination and all stock subject to a right of repurchase by the Company (or its successor) that was purchased prior to the Change
of Control shall have such right of repurchase lapse; 
 (3) the Employee shall be permitted to exercise all vested (including
shares that vest as a result of this Agreement) stock options granted by the Company to the Employee prior to the Change of Control for a period of two (2) years following the Termination Date; and 
 (4) the same level of Company-paid health (i.e., medical, vision and dental) coverage and benefits for such coverage as in effect for the
Employee (and any eligible dependents) on the day immediately preceding the Employee’s Termination Date; provided, however, that (i) the Employee constitutes a qualified beneficiary, as defined in Section 4980B(g)(1) of
the Internal Revenue Code of 1986, as amended; and (ii) Employee elects continuation coverage pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”), within the time period prescribed pursuant to
COBRA. The Company shall continue to provide Employee with such Company-paid coverage until the earlier of (i) the date Employee (and his/her eligible dependents) is no longer eligible to receive continuation coverage pursuant to COBRA, or
(ii) twelve (12) months from the Termination Date. 

 b. Termination Apart from a Change of Control. If (but without duplication with
the provisions set forth above in subsection 4(a)(1)) the Employee’s employment with the Company terminates as a result of an Involuntary Termination, and the Employee signs and does not revoke the release of claims pursuant to Section 7
hereto, the Employee shall be entitled to severance benefits in the form of twelve (12) months of Employee’s base salary as in effect as of the date of termination, less applicable withholding, payable in a lump sum within twenty
(20) days following the effective date of the release of claims pursuant to Section 7. 
 c. Accrued Wages and Vacation, Expenses. Without regard to the reason for, or the timing of, Employee’s termination of employment: (i) the Company shall pay the Employee any unpaid base salary due for
periods prior to the Termination Date; (ii) the Company shall pay the Employee all of the Employee’s accrued and unused vacation through the Termination Date; and (iii) following submission of proper expense reports by the Employee,
the Company shall reimburse the Employee for all expenses reasonably and necessarily incurred by the Employee in connection with the business of the Company prior to the Termination Date. With respect to parts (i) and (ii) of this
Section 4(c), payments shall be made as soon as practicable, but no later than ninety (90) days following Employee’s termination of employment. Reimbursements made pursuant to part (iii) of this Section 4(c) shall be made as
soon as practicable, but no later than December 31st of the year following the calendar year in which such expense was incurred. 
 d. Six Month Delay. Notwithstanding anything to the contrary in this Agreement, if the Employee is a “specified employee”
(as determined in accordance with Section 409A of the Code and related Treasury guidance and regulations) and a payment under this Agreement arising from Employee’s “separation from service” (as defined under Section 409A of
the Code and related Treasury guidance and regulations) would be subject to additional taxes under Section 409A of the Code, then any such payment that the Employee would otherwise be entitled to receive during the first six (6) months
following the date of the Employee’s “separation from service” shall be accumulated and paid on the date that is six (6) months and one (1) day following the date of the Employee’s “separation from service”,
or if earlier, upon the Employee’s death. 
 5. Limitation on Payments. In the event that the severance and other benefits
provided for in this Agreement or otherwise payable to the Employee (i) constitute “parachute payments” within the meaning of Section 280G of the Code, and (ii) would be subject to the excise tax imposed by Section 4999
of the Code (the “Excise Tax”), then Employee’s benefits under this Agreement shall be either 
 a. delivered
in full, or 
 b. delivered as to such lesser extent which would result in no portion of such benefits being subject to the
Excise Tax, 

 whichever of the foregoing amounts, taking into account the applicable federal, state and local income
taxes and the Excise Tax, results in the receipt by Employee on an after-tax basis, of the greatest amount of benefits, notwithstanding that all or some portion of such benefits may be taxable under Section 4999 of the Code. 
 Unless the Company and the Employee otherwise agree in writing, any determination required under this Section shall be made in- writing by the
Company’s independent public accountants (the “Accountants”), whose determination shall be conclusive and binding upon the Employee and the Company for all purposes. For purposes of making the calculations required by this Section,
the Accountants may make reasonable assumptions and approximations concerning applicable taxes and may rely on reasonable, good faith interpretations concerning the application of Section 280G and 4999 of the Code. The Company and the Employee
shall furnish to the Accountants such information and documents as the Accountants may reasonably request in order to make a determination under this Section. The Company shall bear all costs the Accountants may reasonably incur in connection with
any calculations contemplated by this Section. 
 6. Successors. 
 a. Company’s Successors. Any successor to the Company (whether direct or indirect and whether by purchase, lease, merger,
consolidation, liquidation or otherwise) to all or substantially all of the Company’s business and/or assets shall assume the Company’s obligations under this Agreement and agree expressly to perform the Company’s obligations under
this Agreement in the same manner and to the same extent as the Company would be required to perform such obligations in the absence of a succession. For all purposes under this Agreement, the term “Company” shall include any successor to
the Company’s business and/or assets which executes and delivers the assumption agreement described in this subsection (a) or which becomes bound by the terms of this Agreement by operation of law. 
 b. Employee’s Successors. Without the written consent of the Company, Employee shall not assign or transfer this Agreement or
any right or obligation under this Agreement to any other person or entity. Notwithstanding the foregoing, the terms of this Agreement and all rights of Employee hereunder shall inure to the benefit of, and be enforceable by, Employee’s
personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and legatees. 
 7. Execution of
Release Agreement upon Termination. As a condition of entering into this Agreement and receiving the benefits under Section 4, the Employee agrees to execute and not revoke a general release of claims within forty-five (45) days
following the termination of employment with the Company. 
 8. Notices. 
 a. General. Notices and all other communications contemplated by this Agreement shall be in writing and shall be deemed to have
been duly given when personally delivered or when mailed by U.S. registered or certified mail, return receipt requested and postage prepaid. In the case of the Employee, mailed notices shall be addressed to Employee at 

 
the home address which Employee most recently communicated to the Company in writing. In the case of the Company, mailed notices shall be addressed to its
corporate headquarters, and all notices shall be directed to the attention of its Chief Executive Officer. 
 b. Notice of
Termination. Any termination by the Company for Cause or by the Employee as a result of a voluntary resignation shall be communicated by a notice of termination to the other party hereto given in accordance with this Section. Such notice shall
indicate the specific termination provision in this Agreement relied upon, shall set forth in reasonable detail the facts and circumstances claimed to provide a basis for termination under the provision so indicated, and shall specify the
Termination Date (which shall be not more than 30 days after the giving of such notice, such period to be extended to the extent a 30 day cure period under Section 1(c) applies). Except for the notice required under Section 1(c), the
failure by the Employee to provide notice under this Section 8(b) shall not waive any right of the Employee hereunder or preclude the Employee from asserting any fact or circumstance in enforcing his rights hereunder. 
 9. Arbitration. 
 a.
Any dispute or controversy arising out of, relating to, or in connection with this Agreement, or the interpretation, validity, construction, performance, breach, or termination thereof, shall be settled by binding arbitration to be held in Santa
Clara, California, in accordance with the National Rules for the Resolution of Employment Disputes then in effect of the American Arbitration Association (the “Rules”). The arbitrator may grant injunctions or other relief in such dispute
or controversy. The decision of the arbitrator shall be final, conclusive and binding on the parties to the arbitration. Judgment may be entered on the arbitrator’s decision in any court having jurisdiction. The arbitrator may require one party
to pay the costs and attorney fees of the prevailing party. 
 b. The arbitrator(s) shall apply California law to the merits
of any dispute or claim, without reference to conflicts of law rules. The arbitration proceedings shall be governed by federal arbitration law and by the Rules, without reference to state arbitration law. Employee hereby consents to the personal
jurisdiction of the state and federal courts located in California for any action or proceeding arising from or relating to this Agreement or relating to any arbitration in which the parties are participants. 
 c. Employee understands that nothing in this Section modifies Employee’s at-will employment status. Either Employee or the Company
can terminate the employment relationship at any time, with or without Cause. 

 d. EMPLOYEE HAS READ AND UNDERSTANDS THIS SECTION, WHICH DISCUSSES ARBITRATION. EMPLOYEE
UNDERSTANDS THAT SUBMITTING ANY CLAIMS ARISING OUT OF, RELATING TO, OR IN CONNECTION WITH THIS AGREEMENT, OR THE INTERPRETATION, VALIDITY, CONSTRUCTION, PERFORMANCE, BREACH OR TERMINATION THEREOF TO BINDING ARBITRATION, CONSTITUTES A WAIVER OF
EMPLOYEE’S RIGHT TO A JURY TRIAL AND RELATES TO THE RESOLUTION OF ALL DISPUTES RELATING TO ALL ASPECTS OF THE EMPLOYER/EMPLOYEE RELATIONSHIP, INCLUDING BUT NOT LIMITED TO, THE FOLLOWING CLAIMS: 
 i. ANY AND ALL CLAIMS FOR WRONGFUL DISCHARGE OF EMPLOYMENT; BREACH OF CONTRACT, BOTH EXPRESS AND IMPLIED; BREACH OF THE COVENANT OF GOOD
FAITH AND FAIR DEALING, BOTH EXPRESS AND IMPLIED; NEGLIGENT OR INTENTIONAL INFLICTION OF EMOTIONAL DISTRESS; NEGLIGENT OR INTENTIONAL MISREPRESENTATION; NEGLIGENT OR INTENTIONAL INTERFERENCE WITH CONTRACT OR PROSPECTIVE ECONOMIC ADVANTAGE; AND
DEFAMATION. 
 ii. ANY AND ALL CLAIMS FOR VIOLATION OF ANY FEDERAL STATE OR MUNICIPAL STATUTE, INCLUDING, BUT NOT LIMITED TO,
TITLE VII OF THE CIVIL RIGHTS ACT OF 1964, THE CIVIL RIGHTS ACT OF 1991, 1 AGE DISCRIMINATION IN EMPLOYMENT ACT OF 1967, THE AMERICANS WITH DISABILITIES ACT OF 1990, THE FAIR LABOR STANDARDS ACT, THE CALIFORNIA FAIR EMPLOYMENT AND HOUSING ACT, AND
LABOR CODE SECTION 20 1, et seq; 
 iii. ANY AND ALL CLAIMS ARISING OUT OF ANY OTHER LAWS AND REGULATIONS RELATING TO
EMPLOYMENT OR EMPLOYMENT DISCRIMINATION. 
 10. Miscellaneous Provisions. 
 a. Effect of Statutory Benefits. To the extent that any severance benefits are required to be paid to the Employee upon termination
of employment with the Company as a result of any requirement of law or any governmental entity in any applicable jurisdiction, the aggregate amount of severance benefits payable pursuant to Section 4 hereof shall be reduced by such amount.

 b. No Duty to Mitigate. The Employee shall not be required to mitigate the amount of any payment contemplated by
this Agreement, nor shall any such payment be reduced by any earnings that the Employee may receive from any other source. 
 c. Waiver. No provision of this Agreement may be modified, waived or discharged unless the modification, waiver or discharge is agreed to in writing and signed by the Employee and by an authorized officer of the Company (other than
the Employee). No waiver by either party of any breach of, or of compliance with, any condition or provision of this Agreement by the other party shall be considered a waiver of any other condition or provision or of the same condition or provision
at another time. 
 d. Integration. This Agreement and any outstanding stock option agreements and any restricted stock
purchase agreements referenced herein represent the entire agreement and understanding between the parties as to the subject matter herein and supersede all prior or contemporaneous agreements, whether written or oral (including the Prior
Agreement), with respect to this Agreement and any stock option agreement or any restricted stock purchase agreement, provided, that, for clarification purposes, this agreement shall not affect any agreements between the Company and Employee
regarding intellectual property matters or confidential information of the Company. 

 e. Choice of Law. The validity, interpretation, construction and performance of
this Agreement shall be governed by the internal substantive laws, but not the conflicts of law rules, of the State of California. 
 f. Severability. The invalidity or unenforceability of any provision or provisions of this Agreement shall not affect the validity or enforceability of any other provision hereof, which shall remain in full force and effect.

 g. Employment Taxes. All payments made pursuant to this Agreement shall be subject to withholding of applicable
income and employment taxes. 
 h. Counterparts. This Agreement may be executed in counterparts, each of which shall be
deemed an original, but all of which together will constitute one and the same instrument. 
 IN WITNESS WHEREOF, each of the parties has
executed this Agreement, in the case of the Company by its duly authorized officer, as of the day and year first above written. 
  

									
	COMPANY:	 		 	Threshold Pharmaceuticals, Inc.
				
		 		 	By:	 	 
				
		 		 	Title:	 	 
				
	EMPLOYEE:	 		 		 	 
		 		 		 	Signature
				
		 		 		 	 
		 		 		 	Printed Name

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