<PAGE>

    As filed with the Securities and Exchange Commission on August 19, 1999
                                                    Registration No. 333-
--------------------------------------------------------------------------------

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                                   FORM S-8
                         REGISTRATION STATEMENT UNDER
                          THE SECURITIES ACT OF 1933

                           DEVON ENERGY CORPORATION
            (Exact name of registrant as specified in its charter)

             DELAWARE                                 73-1567067
  (State or other jurisdiction of        (I.R.S. Employer Identification No.)
  incorporation or organization)

                Devon Energy Corporation 1997 Stock Option Plan
                Devon Energy Corporation 1993 Stock Option Plan
                Devon Energy Corporation 1988 Stock Option Plan
                Northstar Energy Corporation Stock Option Plan
                  1981 Stock Option Plan of Pennzoil Company
                  1982 Stock Option Plan of Pennzoil Company
                  1990 Stock Option Plan of Pennzoil Company
                  1992 Stock Option Plan of Pennzoil Company
                  1995 Stock Option Plan of Pennzoil Company
                  1997 Stock Option Plan of Pennzoil Company
                  1997 Incentive Plan of Pennzoil Company
                  1998 Stock Option Plan of Pennzoil Company
                  1998 Incentive Plan of PennzEnergy Company
                           (Full title of the plans)

                                                      Marian J. Moon
  20 North Broadway, Suite 1500               20 North Broadway, Suite 1500
Oklahoma City, Oklahoma  73102-8260        Oklahoma City, Oklahoma  73102-8260
         (405) 235-3611                               (405) 235-3611
 (Address, including zip code, and         (Name, address, including zip code,
 telephone number, including area          and telephone number, including area
  code, of registrant's principal               code, of agent for service)
        executive offices)

                                  Copies To:

                                 Jerry Warren
                   McAfee & Taft A Professional Corporation
                       10th Floor, Two Leadership Square
                        Oklahoma City, Oklahoma  73102

<TABLE>
<CAPTION>
                                   Calculation Of Registration Fee
-----------------------------------------------------------------------------------------------------
Title Of Each Class Of                          Proposed Maximum    Proposed Maximum
  Securities To Be            Amount To Be     Offering Price Per  Aggregate Offering    Registration
    Registered               Registered(2)           Share               Price               Fee
-----------------------------------------------------------------------------------------------------
<S>                      <C>                      <C>               <C>                  <C>
Devon common stock (1)    5,998,700  shares (a)    $41.69 (3)        $250,085,803  (3)    $ 69,523
Devon common stock (1)      790,200  shares (b)    $25.70 (4)        $ 20,308,140  (4)    $  5,646
Devon common stock (1)      250,300  shares (c)    $19.19 (4)        $  4,803,257  (4)    $  1,335
Devon common stock (1)      684,982  shares (d)    $32.68 (4)        $ 22,385,212  (4)    $  6,223
Devon common stock (1)          850  shares (e)    $92.28 (4)        $     78,461  (4)    $     21
Devon common stock (1)       25,474  shares (f)    $87.74 (4)        $  2,235,083  (4)    $    621
Devon common stock (1)      239,399  shares (g)    $76.40 (4)        $ 18,290,089  (4)    $  5,084
Devon common stock (1)      386,436  shares (h)    $52.56 (4)        $ 20,311,097  (4)    $  5,646
Devon common stock (1)      274,525  shares (i)    $47.86 (4)        $ 13,138,752  (4)    $  3,652
Devon common stock (1)      150,381  shares (j)    $56.36 (4)        $  8,475,500  (4)    $  2,356
Devon common stock (1)      422,873  shares (k)    $56.73 (4)        $ 23,989,596  (4)    $  6,669
Devon common stock (1)      223,951  shares (l)    $71.97 (4)        $ 16,117,748  (4)    $  4,480
Devon common stock (1)      358,000  shares (m)    $36.89 (4)        $ 13,206,620  (4)    $  3,671
                          -----------------                          ------------         --------
   Total                  9,806,072  shares                          $413,425,358         $114,926
-----------------------------------------------------------------------------------------------------
</TABLE>

(1) Includes the stock purchase rights associated with the Devon common stock.

(2) There is also being registered hereby such additional number of shares of
    Devon common stock as may be issued pursuant to the anti-dilution provisions
    of the:  (a) Devon Energy Corporation 1997 Stock Option Plan.
             (b) Devon Energy Corporation 1993 Stock Option Plan. No additional
                 options will be granted under this plan.
             (c) Devon Energy Corporation 1988 Stock Option Plan. No additional
                 options will be granted under this plan.
             (d) Northstar Energy Corporation Stock Option Plan. No additional
                 options will be granted under this plan.
             (e) 1981 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (f) 1982 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (g) 1990 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (h) 1992 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (i) 1995 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (j) 1997 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (k) 1997 Incentive Plan of Pennzoil Company. No additional options
                 will be granted under this plan.
             (l) 1998 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (m) 1998 Incentive Plan of PennzEnergy. No additional options
                 will be granted under this plan.

(3) Estimated pursuant to Rule 457(c) solely for the purposes of computing the
    registration fee based upon the average of the high and low prices of the
    Devon Common Stock, as reported on the American Stock Exchange Composite
    Transactions on August 13, 1999.

(4) Estimated pursuant to Rule 457(h) solely for the purposes of computing the
    registration fee based upon the average exercise prices of the option
    grants under these plans.
<PAGE>

                                    PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS

Item 3.  Incorporation of Documents by Reference

     Devon Energy Corporation, formerly known as Devon Delaware Corporation,
(the "Company") is subject to the information requirements of the  Securities
and Exchange Act of 1934, as amended  ("Exchange Act").  In  accordance
therewith, the Company will file reports and other information  with the
Securities and  Exchange Commission ("Commission").

     The following documents previously filed with the Securities and Exchange
Commission by Devon Energy Corporation, an Oklahoma corporation (now Devon
Energy Corporation (Oklahoma) ("Devon Oklahoma") (Commission file number 1-
10067) and by PennzEnergy Company, a Delaware corporation ("PennzEnergy")
(Commission file number 1-05591) pursuant to the Securities Exchange Act of
1934, as amended (the "Exchange Act"), are incorporated herein by reference:

     1. Devon Oklahoma's Annual Report on Form 10-K for the year ended
        December 31, 1998;

     2. Devon Oklahoma's Current Reports on Form 8-K dated February 2, 1999,
        February 8, 1999, February 22, 1999, April 28, 1999, May 21, 1999,
        June 1, 1999, July 22, 1999, and August 13, 1999;

     3. Devon Oklahoma's Quarterly Reports on Form 10-Q for the quarters ended
        March 31, 1999, and June 30, 1999; and

     4. The Joint Proxy Statement/Prospectus of Devon Oklahoma and PennzEnergy
        on Schedule 14A, dated July 15, 1999, which is included as part of the
        Registration Statement on Form S-4 (File No. 333-82903) of the
        Registrant.

     5. PennzEnergy's Annual Report on Form 10-K for the year ended
        December 31, 1998;

     6. PennzEnergy's Current Report on Form 8-K dated August 17, 1999; and

     7. PennzEnergy's Quarterly Reports on Form 10-Q for the quarters ended
        March 31, 1999, and June 30, 1999.

     The following documents previously filed by the Registrant with the
Securities and Exchange Commission are incorporated herein by reference:

     1. The description of the Registrant's Common Stock set forth in
        Exhibit 4.9 to the Registrant's Form 8-K, dated August 18, 1999,
        including any amendment or report filed for purposes of updating any
        such description.

     All documents filed by the Company pursuant to Sections 13(a), 13(c), 14,
and 15(d) of the Exchange Act prior to the filing of a post-effective amendment
which indicates that all shares of common stock covered by this registration
statement have been sold or which deregisters all such shares remaining unsold,
shall be deemed to be incorporated by reference and to be part hereof from the
date of filing of such documents.  Any statement contained in a document
incorporated or deemed to be incorporated by reference in this Registration
Statement will be deemed to be modified or superseded for purposes of this
Registration Statement to the extent that a statement contained in this
Registration Statement or in any other subsequently filed document which also is
or is deemed to be incorporated by reference to this Registration Statement
modifies or supersedes such statement.  Any such statement so modified or
superseded will not be deemed, except as so modified or superseded, to
constitute a part of this Registration Statement.

     The  Company will deliver or cause to be delivered to  each Participant to
whom this document is sent or given a copy of  the Company's  annual  report to
stockholders for its  latest  fiscal year, unless such employee otherwise has
received a copy of  such report,  in which case the Company will promptly
furnish, without charge,  a  copy  of  such  report  on  written  request  of
the Participant.

     The  Company will provide without charge to any Participant to  whom  a
copy of this document is delivered, upon written  or oral  request  of any such
person, a copy of any or  all  of  the information  described  above  which  has
been  incorporated  by reference  herein,  other than exhibits  thereto.
Requests  for copies  should  be  directed to the Company's  Secretary,  Marian
Moon, Devon Energy Corporation, 20 North Broadway, Oklahoma City, Oklahoma
73102, telephone (405) 235-3611.

Item 4.  Description of Securities.

         Not applicable.

Item 5.  Interests of Named Experts and Counsel.

         Not applicable.

Item 6.  Indemnification of Directors and Officers.

         Except to the extent indicated below, there is no charter provision,
by-law, contract, arrangement or statute under which any director or officer of
Registrant is insured or indemnified in any manner against any liability which
he or she may incur in his or her capacity as such.
<PAGE>

     Article VIII of the Restated Certificate of Incorporation of Registrant
contains a provision, permitted by Section 102(b)(7) of the Delaware General
Corporation Law (the "DGCL"), limiting the personal monetary liability of
directors for breach of fiduciary duty as a director. The DGCL and the Restated
Certificate of Incorporation of the Registrant provide that such provision does
not eliminate or limit liability,

     (1) for any breach of the director's duty of loyalty to Registrant or its
     stockholders,

     (2) for acts or omissions not in good faith or which involve intentional
     misconduct or a knowing violation of law,

     (3) for unlawful payments of dividends or unlawful stock repurchases or
     redemptions, as provided in Section 174 of the DGCL, or

     (4) for any transaction from which the director derived an improper
     benefit.

     Section 145 of the DGCL permits indemnification against expenses (including
attorneys' fees), judgments, fines and amounts paid in settlement actually and
reasonably incurred in connection with actions, suits or proceedings in which a
director, officer, employee or agent is a party by reason of the fact that he or
she is or was such a director, officer, employee or agent, if he or she acted in
good faith and in a manner he or she reasonably believed to be in or not opposed
to the best interests of the corporation and with respect to any criminal action
or proceeding, had no reasonable cause to believe his or her conduct was
unlawful. However, in connection with actions by or in the right of the
corporation, such indemnification is not permitted if such person has been
adjudged liable to the corporation unless the court determines that, under all
of the circumstances, such person is nonetheless fairly and reasonably entitled
to indemnity for such expenses as the court deems proper. Article X of the
Registrant's Restated Certificate of Incorporation provides for such
indemnification.

     Section 145 also permits a corporation to purchase and maintain insurance
on behalf of its directors and officers against any liability which may be
asserted against, or incurred by, such persons in their capacities as directors
or officers of the corporation whether or not Registrant would have the power to
indemnify such persons against such liabilities under the provisions of such
sections. Registrant intends to purchase such insurance.

     Section 145 further provides that the statutory provision is not exclusive
of any other right to which those seeking indemnification or advancement of
expenses may be entitled under any by-law, agreement, vote of stockholders or
independent directors, or otherwise, both as to action in such person's official
capacity and as to action in another capacity while holding such office.

     Article XIII of the by-laws of Registrant contains provisions regarding
indemnification which parallel those described above.

     The merger agreement provides that for seven years after the effective
time, Registrant will indemnify and hold harmless each person who was a director
or officer of Devon or PennzEnergy prior to the effective time from their acts
or omissions in those capacities occurring prior to the effective time to the
fullest extent permitted by applicable law.
<PAGE>

Item 7.  Exemption from Registration Claimed.

         Not applicable.

Item 8.  Exhibits

Exhibit No.   Document
-----------   --------

3.1           Restated Certificate of Incorporation of the Registrant
              (incorporated by reference to Exhibit 3 to Registrant's Form 8-K,
              filed on August 18, 1999)
4.2           By-laws of the Registrant (incorporated by reference to Exhibit
              3.3 to Registrant's Registration Statement on Form S-4, File No.
              333-82903)
4.3           Form of Common Stock Certificate (incorporated by reference to
              Exhibit 4.1 to Registrant's Form 8-K, filed on August 18, 1999)
4.4           Rights Agreement between Registrant and BankBoston, N.A.
              (incorporated by reference to Exhibit 4.2 to Registrant's Form 8-K
              filed on August 18, 1999)
4.5           Certificate of Designations of Series A Junior Participating
              Preferred Stock of Registrant. (incorporated by reference to
              Exhibit 4.3 to Registrant's Form 8-K filed on August 18, 1999).
4.6           Certificate of Designations of the 6.49% Cumulative Preferred
              Stock, Series A of Registrant. (incorporated by reference to
              Exhibit 4.4 to Registrant's Form 8-K filed on August 18, 1999).
4.7           Amending Support Agreement, dated August 17, 1999, between the
              Registrant and Northstar Energy Corporation. (incorporated by
              reference to Exhibit 4.5 to Registrant's Form 8-K filed on August
              18, 1999).
4.8           Description of Capital Stock of Devon Energy Corporation.
              (incorporated by reference to Exhibit 4.9 to Registrant's Form 8-K
              filed on August 18, 1999).
5.1           Opinion of McAfee & Taft A Professional Corporation
9             Amending Voting and Exchange Agreement, dated August 17, 1999,
              between Registrant, Northstar Energy Corporation and CIB Mellon
              Trust Company. (incorporated by reference to Exhibit 9 to
              Registrant's Form 8-K filed on August 18, 1999).
23.1          Consent of KPMG LLP
23.2          Consent of Deloitte & Touche LLP
23.3          Consent of PricewaterhouseCoopers LLP
23.4          Consent of Arthur Andersen LLP
23.5          Consent of McAfee & Taft A Professional Corporation (contained in
              its opinion in Exhibit 5.1)
23.6          Consent of LaRoche Petroleum Consultants, Ltd.
23.7          Consent of AMH Group, Ltd.
23.8          Consent of Paddock Lindstrom & Associates Ltd.
23.9          Consent of John P. Hunter & Associates, Ltd.
23.10         Consent of Ryder Scott Company, L.P.
24.1          Power of Attorney
99.1          Devon Energy Corporation 1997 Stock Option Plan (incorporated by
              reference to Exhibit A to Registrant's Proxy Statement for the
              1997 Annual Meeting of the Shareholders, filed on April 3, 1997)

Item 9.  Undertakings

     (a) The undersigned registrant hereby undertakes:

         (1) to file, during any period in which offers or sales are being made,
a post-effective amendment to this Registration Statement:

             (i)    to include any prospectus required by Section 10(a)(3) of
the Securities Act of 1933;

             (ii)   to reflect in the prospectus any facts or events arising
after the effective date of the Registration Statement (or the most recent post-
effective amendment thereof) which, individually or in the aggregate, represent
a fundamental change in the information set forth in the Registration Statement.
Notwithstanding the foregoing, any increase or decrease in volume of securities
offered (if the total dollar value of securities offered would not exceed that
which was registered) and any deviation from the low or high end of the
estimated maximum offering range may be reflected in the form of prospectus
filed with


<PAGE>

the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in
volume and price represent no more than a 20 percent change in the maximum
aggregate offering price set forth in the "Calculation of Registration Fee"
table in the effective Registration Statement; and

             (iii)  to include any material information with respect to the plan
of distribution not previously disclosed in this Registration Statement or any
material change to such information in this Registration Statement;

provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the
Registrations Statement is on Form S-3, Form S-8 or Form F-3, and the
information required to be included in a post-effective amendment by those
paragraphs is contained in periodic reports filed with or furnished to the
Commission by the registrant pursuant to Sections 13 or 15(d) of the Exchange
Act that are incorporated by reference in the Registration Statement;

     (2) that, for the purposes of determining any liability under the
Securities Act, each such post-effective amendment shall be deemed to be a new
Registration Statement relating to the securities offered herein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof;

     (3) to remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

  (b) The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
registrant's annual report pursuant to Section 13(a) or 15(d) of the Exchange
Act (and, where applicable, each filing of an employee benefit plan's annual
report pursuant to Section 15(d) of the Exchange Act) that is incorporated by
reference in this Registration Statement shall be deemed to be a new
Registration Statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

  (c) Insofar as indemnification for liabilities arising under the Securities
Act may be permitted to directors, officers and controlling persons of the
registrant, the registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy
as expressed in the Securities Act and is, therefore, unenforceable. In the
event that a claim for indemnification against such liabilities (other than the
payment by the registrant of expenses incurred or paid by a director, officer or
controlling person of the registrant in the successful defense of any action,
suit or proceeding) is asserted by any such director, officer or controlling
person in connection with the securities being registered, the registrant will,
unless in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question of whether
or not such indemnification is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.
<PAGE>

                                  SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended,
Devon Energy Corporation, a Delaware corporation, has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Oklahoma City, State of Oklahoma, on the 19th
day of August, 1999.

                              DEVON ENERGY CORPORATION



                                       By: /s/  J. Larry Nichols
                                           -------------------------------
                                           J. Larry Nichols, President and
                                           Chief Executive Officer

     Pursuant to the requirements of the Securities Act of 1933, as amended,
this Registration Statement has been signed by the following persons in the
capacities indicated on the 19th day of August, 1999.

/s/  James L. Pate                         /s/  Henry R. Hamman
------------------------------             -------------------------------
James L. Pate, Chairman of the Board       Henry R. Hamman, Director
and Director

/s/  J. Larry Nichols                      /s/  William J. Johnson
------------------------------             -------------------------------
J. Larry Nichols, President,               William J. Johnson, Director
Chief Executive Officer and Director

/s/  William T. Vaughn                     /s/  Michael M. Kanovsky
------------------------------             -------------------------------
William T. Vaughn, Vice President-Finance  Michael M. Kanovsky, Director


/s/  Danny J. Heatly                       /s/  Robert Mosbacher, Jr.
------------------------------             -------------------------------
Danny J. Heatly, Controller                Robert Mosbacher, Jr., Director


/s/  Thomas F. Ferguson                    /s/  H. R. Sanders, Jr.
------------------------------             -------------------------------
Thomas F. Ferguson, Director               H. R. Sanders, Jr., Director


/s/  David M. Gavrin                       /s/  Terry L. Savage
------------------------------             -------------------------------
David M. Gavrin, Director                  Terry L. Savage,Director


/s/  Michael E. Gellert                    /s/  Brent Scowcroft
------------------------------             -------------------------------
Michael E. Gellert, Director               Brent Scowcroft, Director


/s/  John A. Hagg                          /s/  Robert B. Weaver
------------------------------             -------------------------------
John A. Hagg, Director                     Robert B. Weaver, Director
<PAGE>

                                 EXHIBIT INDEX

3.1    Restated Certificate of Incorporation of the Registrant (incorporated by
       reference to Exhibit 3 to Registrant's Form 8-K, filed on August , 1999)
4.2    By-laws of the Registrant (incorporated by reference to Exhibit 3.3 to
       Registrant's Registration Statement on Form S-4, File No. 333-82903)
4.3    Form of Common Stock Certificate (incorporated by reference to Exhibit
       4.1 to Registrant's Form 8-K, filed on August , 1999)
4.4    Rights Agreement between Registrant and BankBoston, N.A. (incorporated by
       reference to Exhibit 4.2 to Registrant's Form 8-K filed on August 18,
       1999)
4.5    Certificate of Designations of Series A Junior Participating Preferred
       Stock of Registrant. (incorporated by reference to Exhibit 4.3 to
       Registrant's Form 8-K filed on August 18, 1999).
4.6    Certificate of Designations of the 6.49% Cumulative Preferred Stock,
       Series A of Registrant. (incorporated by reference to Exhibit 4.4 to
       Registrant's Form 8-K filed on August 18, 1999).
4.7    Amending Support Agreement, dated August 17, 1999, between the Registrant
       and Northstar Energy Corporation. (incorporated by reference to Exhibit
       4.5 to Registrant's Form 8-K filed on August 18, 1999).
4.8    Description of Capital Stock of Devon Energy Corporation. (incorporated
       by reference to Exhibit 4.9 to Registrant's Form 8-K filed on August 18,
       1999).
5.1    Opinion of McAfee & Taft A Professional Corporation
9      Amending Voting and Exchange Agreement, dated August 17, 1999,
       between Registrant, Northstar Energy Corporation and CIB Mellon
       Trust Company. (incorporated by reference to Exhibit 9 to
       Registrant's Form 8-K filed on August 18, 1999).
23.1   Consent of KPMG LLP
23.2   Consent of Deloitte & Touche LLP
23.3   Consent of PricewaterhouseCoopers LLP
23.4   Consent of Arthur Andersen LLP
23.5   Consent of McAfee & Taft A Professional Corporation (contained in its
       opinion in Exhibit 5.1)
23.6   Consent of LaRoche Petroleum Consultants, Ltd.
23.7   Consent of AMH Group, Ltd.
23.8   Consent of Paddock Lindstrom & Associates Ltd.
23.9   Consent of John P. Hunter & Associates, Ltd.
23.10  Consent of Ryder Scott Company, L.P.
24.1   Power of Attorney
99.1   Devon Energy Corporation 1997 Stock Option Plan (incorporated by
       reference to Exhibit A to Registrant's Proxy Statement for the 1997
       Annual Meeting of the Shareholders, filed on April 3, 1997)
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As filed with the Securities and Exchange Commission on August 19, 1999
                                                    Registration No. 333-
--------------------------------------------------------------------------------

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                                   FORM S-8
                         REGISTRATION STATEMENT UNDER
                          THE SECURITIES ACT OF 1933

                           DEVON ENERGY CORPORATION
            (Exact name of registrant as specified in its charter)

             DELAWARE                                 73-1567067
  (State or other jurisdiction of        (I.R.S. Employer Identification No.)
  incorporation or organization)

                Devon Energy Corporation 1997 Stock Option Plan
                Devon Energy Corporation 1993 Stock Option Plan
                Devon Energy Corporation 1988 Stock Option Plan
                Northstar Energy Corporation Stock Option Plan
                  1981 Stock Option Plan of Pennzoil Company
                  1982 Stock Option Plan of Pennzoil Company
                  1990 Stock Option Plan of Pennzoil Company
                  1992 Stock Option Plan of Pennzoil Company
                  1995 Stock Option Plan of Pennzoil Company
                  1997 Stock Option Plan of Pennzoil Company
                  1997 Incentive Plan of Pennzoil Company
                  1998 Stock Option Plan of Pennzoil Company
                  1998 Incentive Plan of PennzEnergy Company
                           (Full title of the plans)

                                                      Marian J. Moon
  20 North Broadway, Suite 1500               20 North Broadway, Suite 1500
Oklahoma City, Oklahoma  73102-8260        Oklahoma City, Oklahoma  73102-8260
         (405) 235-3611                               (405) 235-3611
 (Address, including zip code, and         (Name, address, including zip code,
 telephone number, including area          and telephone number, including area
  code, of registrant's principal               code, of agent for service)
        executive offices)

                                  Copies To:

                                 Jerry Warren
                   McAfee & Taft A Professional Corporation
                       10th Floor, Two Leadership Square
                        Oklahoma City, Oklahoma  73102
Calculation Of Registration Fee
-----------------------------------------------------------------------------------------------------
Title Of Each Class Of                          Proposed Maximum    Proposed Maximum
  Securities To Be            Amount To Be     Offering Price Per  Aggregate Offering    Registration
    Registered               Registered(2)           Share               Price               Fee
-----------------------------------------------------------------------------------------------------
Devon common stock (1)    5,998,700  shares (a)    $41.69 (3)        $250,085,803  (3)    $ 69,523
Devon common stock (1)      790,200  shares (b)    $25.70 (4)        $ 20,308,140  (4)    $  5,646
Devon common stock (1)      250,300  shares (c)    $19.19 (4)        $  4,803,257  (4)    $  1,335
Devon common stock (1)      684,982  shares (d)    $32.68 (4)        $ 22,385,212  (4)    $  6,223
Devon common stock (1)          850  shares (e)    $92.28 (4)        $     78,461  (4)    $     21
Devon common stock (1)       25,474  shares (f)    $87.74 (4)        $  2,235,083  (4)    $    621
Devon common stock (1)      239,399  shares (g)    $76.40 (4)        $ 18,290,089  (4)    $  5,084
Devon common stock (1)      386,436  shares (h)    $52.56 (4)        $ 20,311,097  (4)    $  5,646
Devon common stock (1)      274,525  shares (i)    $47.86 (4)        $ 13,138,752  (4)    $  3,652
Devon common stock (1)      150,381  shares (j)    $56.36 (4)        $  8,475,500  (4)    $  2,356
Devon common stock (1)      422,873  shares (k)    $56.73 (4)        $ 23,989,596  (4)    $  6,669
Devon common stock (1)      223,951  shares (l)    $71.97 (4)        $ 16,117,748  (4)    $  4,480
Devon common stock (1)      358,000  shares (m)    $36.89 (4)        $ 13,206,620  (4)    $  3,671
                          -----------------                          ------------         --------
   Total                  9,806,072  shares                          $413,425,358         $114,926
-----------------------------------------------------------------------------------------------------
(1) Includes the stock purchase rights associated with the Devon common stock.

(2) There is also being registered hereby such additional number of shares of
    Devon common stock as may be issued pursuant to the anti-dilution provisions
    of the:  (a) Devon Energy Corporation 1997 Stock Option Plan.
             (b) Devon Energy Corporation 1993 Stock Option Plan. No additional
                 options will be granted under this plan.
             (c) Devon Energy Corporation 1988 Stock Option Plan. No additional
                 options will be granted under this plan.
             (d) Northstar Energy Corporation Stock Option Plan. No additional
                 options will be granted under this plan.
             (e) 1981 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (f) 1982 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (g) 1990 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (h) 1992 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (i) 1995 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (j) 1997 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (k) 1997 Incentive Plan of Pennzoil Company. No additional options
                 will be granted under this plan.
             (l) 1998 Stock Option Plan of Pennzoil Company. No additional
                 options will be granted under this plan.
             (m) 1998 Incentive Plan of PennzEnergy. No additional options
                 will be granted under this plan.

(3) Estimated pursuant to Rule 457(c) solely for the purposes of computing the
    registration fee based upon the average of the high and low prices of the
    Devon Common Stock, as reported on the American Stock Exchange Composite
    Transactions on August 13, 1999.

(4) Estimated pursuant to Rule 457(h) solely for the purposes of computing the
    registration fee based upon the average exercise prices of the option
    grants under these plans.
PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS

Item 3.  Incorporation of Documents by Reference

     Devon Energy Corporation, formerly known as Devon Delaware Corporation,
(the "Company") is subject to the information requirements of the  Securities
and Exchange Act of 1934, as amended  ("Exchange Act").  In  accordance
therewith, the Company will file reports and other information  with the
Securities and  Exchange Commission ("Commission").

     The following documents previously filed with the Securities and Exchange
Commission by Devon Energy Corporation, an Oklahoma corporation (now Devon
Energy Corporation (Oklahoma) ("Devon Oklahoma") (Commission file number 1-
10067) and by PennzEnergy Company, a Delaware corporation ("PennzEnergy")
(Commission file number 1-05591) pursuant to the Securities Exchange Act of
1934, as amended (the "Exchange Act"), are incorporated herein by reference:

     1. Devon Oklahoma's Annual Report on Form 10-K for the year ended
        December 31, 1998;

     2. Devon Oklahoma's Current Reports on Form 8-K dated February 2, 1999,
        February 8, 1999, February 22, 1999, April 28, 1999, May 21, 1999,
        June 1, 1999, July 22, 1999, and August 13, 1999;

     3. Devon Oklahoma's Quarterly Reports on Form 10-Q for the quarters ended
        March 31, 1999, and June 30, 1999; and

     4. The Joint Proxy Statement/Prospectus of Devon Oklahoma and PennzEnergy
        on Schedule 14A, dated July 15, 1999, which is included as part of the
        Registration Statement on Form S-4 (File No. 333-82903) of the
        Registrant.

     5. PennzEnergy's Annual Report on Form 10-K for the year ended
        December 31, 1998;

     6. PennzEnergy's Current Report on Form 8-K dated August 17, 1999; and

     7. PennzEnergy's Quarterly Reports on Form 10-Q for the quarters ended
        March 31, 1999, and June 30, 1999.

     The following documents previously filed by the Registrant with the
Securities and Exchange Commission are incorporated herein by reference:

     1. The description of the Registrant's Common Stock set forth in
        Exhibit 4.9 to the Registrant's Form 8-K, dated August 18, 1999,
        including any amendment or report filed for purposes of updating any
        such description.

     All documents filed by the Company pursuant to Sections 13(a), 13(c), 14,
and 15(d) of the Exchange Act prior to the filing of a post-effective amendment
which indicates that all shares of common stock covered by this registration
statement have been sold or which deregisters all such shares remaining unsold,
shall be deemed to be incorporated by reference and to be part hereof from the
date of filing of such documents.  Any statement contained in a document
incorporated or deemed to be incorporated by reference in this Registration
Statement will be deemed to be modified or superseded for purposes of this
Registration Statement to the extent that a statement contained in this
Registration Statement or in any other subsequently filed document which also is
or is deemed to be incorporated by reference to this Registration Statement
modifies or supersedes such statement.  Any such statement so modified or
superseded will not be deemed, except as so modified or superseded, to
constitute a part of this Registration Statement.

     The  Company will deliver or cause to be delivered to  each Participant to
whom this document is sent or given a copy of  the Company's  annual  report to
stockholders for its  latest  fiscal year, unless such employee otherwise has
received a copy of  such report,  in which case the Company will promptly
furnish, without charge,  a  copy  of  such  report  on  written  request  of
the Participant.

     The  Company will provide without charge to any Participant to  whom  a
copy of this document is delivered, upon written  or oral  request  of any such
person, a copy of any or  all  of  the information  described  above  which  has
been  incorporated  by reference  herein,  other than exhibits  thereto.
Requests  for copies  should  be  directed to the Company's  Secretary,  Marian
Moon, Devon Energy Corporation, 20 North Broadway, Oklahoma City, Oklahoma
73102, telephone (405) 235-3611.

Item 4.  Description of Securities.

         Not applicable.

Item 5.  Interests of Named Experts and Counsel.

         Not applicable.

Item 6.  Indemnification of Directors and Officers.

         Except to the extent indicated below, there is no charter provision,
by-law, contract, arrangement or statute under which any director or officer of
Registrant is insured or indemnified in any manner against any liability which
he or she may incur in his or her capacity as such.
Article VIII of the Restated Certificate of Incorporation of Registrant
contains a provision, permitted by Section 102(b)(7) of the Delaware General
Corporation Law (the "DGCL"), limiting the personal monetary liability of
directors for breach of fiduciary duty as a director. The DGCL and the Restated
Certificate of Incorporation of the Registrant provide that such provision does
not eliminate or limit liability,

     (1) for any breach of the director's duty of loyalty to Registrant or its
     stockholders,

     (2) for acts or omissions not in good faith or which involve intentional
     misconduct or a knowing violation of law,

     (3) for unlawful payments of dividends or unlawful stock repurchases or
     redemptions, as provided in Section 174 of the DGCL, or

     (4) for any transaction from which the director derived an improper
     benefit.

     Section 145 of the DGCL permits indemnification against expenses (including
attorneys' fees), judgments, fines and amounts paid in settlement actually and
reasonably incurred in connection with actions, suits or proceedings in which a
director, officer, employee or agent is a party by reason of the fact that he or
she is or was such a director, officer, employee or agent, if he or she acted in
good faith and in a manner he or she reasonably believed to be in or not opposed
to the best interests of the corporation and with respect to any criminal action
or proceeding, had no reasonable cause to believe his or her conduct was
unlawful. However, in connection with actions by or in the right of the
corporation, such indemnification is not permitted if such person has been
adjudged liable to the corporation unless the court determines that, under all
of the circumstances, such person is nonetheless fairly and reasonably entitled
to indemnity for such expenses as the court deems proper. Article X of the
Registrant's Restated Certificate of Incorporation provides for such
indemnification.

     Section 145 also permits a corporation to purchase and maintain insurance
on behalf of its directors and officers against any liability which may be
asserted against, or incurred by, such persons in their capacities as directors
or officers of the corporation whether or not Registrant would have the power to
indemnify such persons against such liabilities under the provisions of such
sections. Registrant intends to purchase such insurance.

     Section 145 further provides that the statutory provision is not exclusive
of any other right to which those seeking indemnification or advancement of
expenses may be entitled under any by-law, agreement, vote of stockholders or
independent directors, or otherwise, both as to action in such person's official
capacity and as to action in another capacity while holding such office.

     Article XIII of the by-laws of Registrant contains provisions regarding
indemnification which parallel those described above.

     The merger agreement provides that for seven years after the effective
time, Registrant will indemnify and hold harmless each person who was a director
or officer of Devon or PennzEnergy prior to the effective time from their acts
or omissions in those capacities occurring prior to the effective time to the
fullest extent permitted by applicable law.
Item 7.  Exemption from Registration Claimed.

         Not applicable.

Item 8.  Exhibits

Exhibit No.   Document
-----------   --------

3.1           Restated Certificate of Incorporation of the Registrant
              (incorporated by reference to Exhibit 3 to Registrant's Form 8-K,
              filed on August 18, 1999)
4.2           By-laws of the Registrant (incorporated by reference to Exhibit
              3.3 to Registrant's Registration Statement on Form S-4, File No.
              333-82903)
4.3           Form of Common Stock Certificate (incorporated by reference to
              Exhibit 4.1 to Registrant's Form 8-K, filed on August 18, 1999)
4.4           Rights Agreement between Registrant and BankBoston, N.A.
              (incorporated by reference to Exhibit 4.2 to Registrant's Form 8-K
              filed on August 18, 1999)
4.5           Certificate of Designations of Series A Junior Participating
              Preferred Stock of Registrant. (incorporated by reference to
              Exhibit 4.3 to Registrant's Form 8-K filed on August 18, 1999).
4.6           Certificate of Designations of the 6.49% Cumulative Preferred
              Stock, Series A of Registrant. (incorporated by reference to
              Exhibit 4.4 to Registrant's Form 8-K filed on August 18, 1999).
4.7           Amending Support Agreement, dated August 17, 1999, between the
              Registrant and Northstar Energy Corporation. (incorporated by
              reference to Exhibit 4.5 to Registrant's Form 8-K filed on August
              18, 1999).
4.8           Description of Capital Stock of Devon Energy Corporation.
              (incorporated by reference to Exhibit 4.9 to Registrant's Form 8-K
              filed on August 18, 1999).
5.1           Opinion of McAfee & Taft A Professional Corporation
9             Amending Voting and Exchange Agreement, dated August 17, 1999,
              between Registrant, Northstar Energy Corporation and CIB Mellon
              Trust Company. (incorporated by reference to Exhibit 9 to
              Registrant's Form 8-K filed on August 18, 1999).
23.1          Consent of KPMG LLP
23.2          Consent of Deloitte & Touche LLP
23.3          Consent of PricewaterhouseCoopers LLP
23.4          Consent of Arthur Andersen LLP
23.5          Consent of McAfee & Taft A Professional Corporation (contained in
              its opinion in Exhibit 5.1)
23.6          Consent of LaRoche Petroleum Consultants, Ltd.
23.7          Consent of AMH Group, Ltd.
23.8          Consent of Paddock Lindstrom & Associates Ltd.
23.9          Consent of John P. Hunter & Associates, Ltd.
23.10         Consent of Ryder Scott Company, L.P.
24.1          Power of Attorney
99.1          Devon Energy Corporation 1997 Stock Option Plan (incorporated by
              reference to Exhibit A to Registrant's Proxy Statement for the
              1997 Annual Meeting of the Shareholders, filed on April 3, 1997)

Item 9.  Undertakings

     (a) The undersigned registrant hereby undertakes:

         (1) to file, during any period in which offers or sales are being made,
a post-effective amendment to this Registration Statement:

             (i)    to include any prospectus required by Section 10(a)(3) of
the Securities Act of 1933;

             (ii)   to reflect in the prospectus any facts or events arising
after the effective date of the Registration Statement (or the most recent post-
effective amendment thereof) which, individually or in the aggregate, represent
a fundamental change in the information set forth in the Registration Statement.
Notwithstanding the foregoing, any increase or decrease in volume of securities
offered (if the total dollar value of securities offered would not exceed that
which was registered) and any deviation from the low or high end of the
estimated maximum offering range may be reflected in the form of prospectus
filed with
the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in
volume and price represent no more than a 20 percent change in the maximum
aggregate offering price set forth in the "Calculation of Registration Fee"
table in the effective Registration Statement; and

             (iii)  to include any material information with respect to the plan
of distribution not previously disclosed in this Registration Statement or any
material change to such information in this Registration Statement;

provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the
Registrations Statement is on Form S-3, Form S-8 or Form F-3, and the
information required to be included in a post-effective amendment by those
paragraphs is contained in periodic reports filed with or furnished to the
Commission by the registrant pursuant to Sections 13 or 15(d) of the Exchange
Act that are incorporated by reference in the Registration Statement;

     (2) that, for the purposes of determining any liability under the
Securities Act, each such post-effective amendment shall be deemed to be a new
Registration Statement relating to the securities offered herein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof;

     (3) to remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

  (b) The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
registrant's annual report pursuant to Section 13(a) or 15(d) of the Exchange
Act (and, where applicable, each filing of an employee benefit plan's annual
report pursuant to Section 15(d) of the Exchange Act) that is incorporated by
reference in this Registration Statement shall be deemed to be a new
Registration Statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

  (c) Insofar as indemnification for liabilities arising under the Securities
Act may be permitted to directors, officers and controlling persons of the
registrant, the registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy
as expressed in the Securities Act and is, therefore, unenforceable. In the
event that a claim for indemnification against such liabilities (other than the
payment by the registrant of expenses incurred or paid by a director, officer or
controlling person of the registrant in the successful defense of any action,
suit or proceeding) is asserted by any such director, officer or controlling
person in connection with the securities being registered, the registrant will,
unless in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question of whether
or not such indemnification is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.
SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended,
Devon Energy Corporation, a Delaware corporation, has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Oklahoma City, State of Oklahoma, on the 19th
day of August, 1999.

                              DEVON ENERGY CORPORATION

                                       By: /s/  J. Larry Nichols
                                           -------------------------------
                                           J. Larry Nichols, President and
                                           Chief Executive Officer

     Pursuant to the requirements of the Securities Act of 1933, as amended,
this Registration Statement has been signed by the following persons in the
capacities indicated on the 19th day of August, 1999.

/s/  James L. Pate                         /s/  Henry R. Hamman
------------------------------             -------------------------------
James L. Pate, Chairman of the Board       Henry R. Hamman, Director
and Director

/s/  J. Larry Nichols                      /s/  William J. Johnson
------------------------------             -------------------------------
J. Larry Nichols, President,               William J. Johnson, Director
Chief Executive Officer and Director

/s/  William T. Vaughn                     /s/  Michael M. Kanovsky
------------------------------             -------------------------------
William T. Vaughn, Vice President-Finance  Michael M. Kanovsky, Director

/s/  Danny J. Heatly                       /s/  Robert Mosbacher, Jr.
------------------------------             -------------------------------
Danny J. Heatly, Controller                Robert Mosbacher, Jr., Director

/s/  Thomas F. Ferguson                    /s/  H. R. Sanders, Jr.
------------------------------             -------------------------------
Thomas F. Ferguson, Director               H. R. Sanders, Jr., Director

/s/  David M. Gavrin                       /s/  Terry L. Savage
------------------------------             -------------------------------
David M. Gavrin, Director                  Terry L. Savage,Director

/s/  Michael E. Gellert                    /s/  Brent Scowcroft
------------------------------             -------------------------------
Michael E. Gellert, Director               Brent Scowcroft, Director

/s/  John A. Hagg                          /s/  Robert B. Weaver
------------------------------             -------------------------------
John A. Hagg, Director                     Robert B. Weaver, Director
EXHIBIT INDEX

3.1    Restated Certificate of Incorporation of the Registrant (incorporated by
       reference to Exhibit 3 to Registrant's Form 8-K, filed on August , 1999)
4.2    By-laws of the Registrant (incorporated by reference to Exhibit 3.3 to
       Registrant's Registration Statement on Form S-4, File No. 333-82903)
4.3    Form of Common Stock Certificate (incorporated by reference to Exhibit
       4.1 to Registrant's Form 8-K, filed on August , 1999)
4.4    Rights Agreement between Registrant and BankBoston, N.A. (incorporated by
       reference to Exhibit 4.2 to Registrant's Form 8-K filed on August 18,
       1999)
4.5    Certificate of Designations of Series A Junior Participating Preferred
       Stock of Registrant. (incorporated by reference to Exhibit 4.3 to
       Registrant's Form 8-K filed on August 18, 1999).
4.6    Certificate of Designations of the 6.49% Cumulative Preferred Stock,
       Series A of Registrant. (incorporated by reference to Exhibit 4.4 to
       Registrant's Form 8-K filed on August 18, 1999).
4.7    Amending Support Agreement, dated August 17, 1999, between the Registrant
       and Northstar Energy Corporation. (incorporated by reference to Exhibit
       4.5 to Registrant's Form 8-K filed on August 18, 1999).
4.8    Description of Capital Stock of Devon Energy Corporation. (incorporated
       by reference to Exhibit 4.9 to Registrant's Form 8-K filed on August 18,
       1999).
5.1    Opinion of McAfee & Taft A Professional Corporation
9      Amending Voting and Exchange Agreement, dated August 17, 1999,
       between Registrant, Northstar Energy Corporation and CIB Mellon
       Trust Company. (incorporated by reference to Exhibit 9 to
       Registrant's Form 8-K filed on August 18, 1999).
23.1   Consent of KPMG LLP
23.2   Consent of Deloitte & Touche LLP
23.3   Consent of PricewaterhouseCoopers LLP
23.4   Consent of Arthur Andersen LLP
23.5   Consent of McAfee & Taft A Professional Corporation (contained in its
       opinion in Exhibit 5.1)
23.6   Consent of LaRoche Petroleum Consultants, Ltd.
23.7   Consent of AMH Group, Ltd.
23.8   Consent of Paddock Lindstrom & Associates Ltd.
23.9   Consent of John P. Hunter & Associates, Ltd.
23.10  Consent of Ryder Scott Company, L.P.
24.1   Power of Attorney
99.1   Devon Energy Corporation 1997 Stock Option Plan (incorporated by
       reference to Exhibit A to Registrant's Proxy Statement for the 1997
       Annual Meeting of the Shareholders, filed on April 3, 1997)