UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 11, 2017

APACHE CORPORATION

(Exact name of registrant as specified in its charter)

2000 Post Oak Boulevard, Suite 100

Houston, Texas 77056-4400

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (713) 296-6000

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 5.03. Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.

On May 11, 2017, the board of directors (the “Board”) of Apache Corporation (“Apache”) amended Apache’s Bylaws (the “Bylaws”), effective immediately, to provide that the Board shall annually elect the chief executive officer, president, one or more executive vice presidents, each other executive “officer” for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, secretary, controller, treasurer and head of internal audit and to make other non-substantive language and conforming changes and other technical edits.

The foregoing description of the amendments to the Bylaws does not purport to be complete and is qualified in its entirety by reference to the Bylaws, as amended, a copy of which is filed herewith as Exhibit 3.1 and incorporated herein by reference.

Item 5.07 Submission of Matters to a Vote of Security Holders.

At the annual meeting of stockholders of Apache held on May 11, 2017, there were 380,434,058 shares of Apache common stock, par value $0.625 per share, eligible to vote, of which 348,289,350 shares, or 91.55 percent, were voted.

The matters voted upon, the number of votes cast for or against, as well as the number of abstentions and broker non-votes as to such matters, were as stated below:

After the annual meeting, the Board considered the outcome of this vote and determined that Apache will hold future non-binding advisory votes to approve the compensation of Apache’s named executive officers every year until the Board otherwise determines that a different frequency for such non-binding advisory vote is in the best interest of Apache or until the next required vote on the frequency of such votes.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

INDEX TO EXHIBITS