8-K 1 pnw201712318-kearningsrele.htm 8-K
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of report (Date of earliest event reported): February 23, 2018

Commission File Number | Exact Name of Registrant as Specified in Charter; State of Incorporation; Address and Telephone Number | IRS Employer Identification Number
1-8962 | Pinnacle West Capital Corporation (an Arizona corporation) 400 North Fifth Street, P.O. Box 53999 Phoenix, AZ 85072-3999 (602) 250-1000 | 86-0512431
1-4473 | Arizona Public Service Company (an Arizona corporation) 400 North Fifth Street, P.O. Box 53999 Phoenix, AZ 85072-3999 (602) 250-1000 | 86-0011170

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:
¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Indicate by check mark whether the registrant is an emerging growth company 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. ¨
This combined Form 8-K is separately filed or furnished by Pinnacle West Capital Corporation and Arizona Public Service Company. Each registrant is filing or furnishing on its own behalf all of the information contained in this Form 8-K that relates to such registrant and, where required, its subsidiaries. Except as stated in the preceding sentence, neither registrant is filing or furnishing any information that does not relate to such registrant, and therefore makes no representation as to any such information.

Item 2.02. Results of Operations and Financial Condition.
The following information is furnished pursuant to Item 2.02.
On February 23, 2018, Pinnacle West Capital Corporation (the “Company” or “Pinnacle West”) issued a press release regarding its financial results for the fiscal quarter and full year ended December 31, 2017 and its earnings outlook for 2018. A copy of the press release is attached hereto as Exhibit 99.1.
Item 7.01. Regulation FD Disclosure.
The following information is furnished pursuant to Item 7.01.
The Company is providing a copy of the slide presentation made in connection with its earnings conference call on February 23, 2018. This information contains Company operating results for the fiscal quarter and fiscal year ended December 31, 2017, earnings outlook for 2018 and a quarterly and full year consolidated statistical summary. The slide presentation is attached hereto as Exhibits 99.2 and is concurrently being posted to the Company’s website at www.pinnaclewest.com.
Item 9.01. Financial Statements and Exhibits.
(d) Exhibits

Exhibit No. |  | Registrant(s) |  | Description
99.1 |  | Pinnacle West APS |  | Earnings News Release issued on February 23, 2018.
99.2 |  | Pinnacle West APS |  | Pinnacle West 4th Quarter and Full-Year 2017 Results slide presentation accompanying February 23, 2018 conference call.

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

|  | PINNACLE WEST CAPITAL CORPORATION
|  | (Registrant)
Dated: February 23, 2018 |  | By: /s/ James R. Hatfield
|  | James R. Hatfield
|  | Executive Vice President and
|  | Chief Financial Officer
|  | ARIZONA PUBLIC SERVICE COMPANY
|  | (Registrant)
Dated: February 23, 2018 |  | By: /s/ James R. Hatfield
|  | James R. Hatfield
|  | Executive Vice President and
|  | Chief Financial Officer