<PAGE>
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 15
Certification and Notice of Termination of Registration under Section 12(g) of
the Securities Exchange Act of 1934 or Suspension of Duty to File Reports Under
Sections 13 and 15(d) of the Securities Exchange Act of 1934
Commission File Number 1-11327
ILLINOVA CORPORATION
- --------------------------------------------------------------------------------
(Exact name of registrant as specified in its charter)
500 SOUTH 27th STREET
DECATUR, IL 62521
(217) 424-6600
- --------------------------------------------------------------------------------
(Address, including zip code, and telephone number, including area code, of
registrant's principal executive offices)
Common Stock, no par value per share
- --------------------------------------------------------------------------------
(Title of each class of securities covered by this Form)
None
- --------------------------------------------------------------------------------
(Title of all other classes of securities for which a duty to file reports under
Section 13(a) or 15(d) remains)
Please place an X in the box(es) to designate the appropriate rule provision(s)
relied upon to terminate or suspend the duty to file reports:
Rule 12g-4(a)(1)(i) [X] Rule 12h-3(b)(1)(ii) [X]
Rule 12g-4(a)(1)(ii) [ ] Rule 12h-3(b)(2)(i) [ ]
Rule 12g-4(a)(2)(i) [ ] Rule 12h-3(b)(2)(ii) [ ]
Rule 12g-4(a)(2)(ii) [ ] Rule 15d-6 [ ]
Rule 12h-3(b)(1)(i) [ ]
Approximate number of holders of record as of the certification or notice
date: 1
Pursuant to the requirements of the Securities Exchange Act of 1934, Illinova
Corporation this certification/notice to be signed on its behalf by the
undersigned duly authorized person.
DATE: February 2, 2000 By: /s/ LISA Q. METTS
---------------------- ------------------------------
Lisa Q. Metts
Vice President and Secretary
