Exhibit 31

                                  CERTIFICATION

I, David Roff, Chairman of the Board, President,  CEO, CFO and the sole Director
of Deep Well Oil & Gas, Inc.  (formerly  Allied  Devices  Corporation),  certify
that:

1. I have reviewed this annual report on Form 10-K of Deep Well Oil & Gas, Inc.
(formerly Allied Devices Corporation);

2. Based on my knowledge, this report does not contain any untrue statement of a
material fact or omit to state a material fact  necessary to make the statements
made, in light of the  circumstances  under which such statements were made, not
misleading  with respect to the period  covered by this  report;  3. Based on my
knowledge, the financial statements, and other financial information included in
this report,  fairly present in all material  respects the financial  condition,
results of  operations  and cash  flows of the  registrant  as of, and for,  the
periods  presented in this report;  4. I am  responsible  for  establishing  and
maintaining disclosure controls and procedures (as defined in Exchange Act Rules
13a-15(e) and 15d-15(e)) for the registrant and have:

a) Designed such disclosure  controls and procedures,  or caused such disclosure
controls and  procedures to be designed  under our  supervision,  to ensure that
material  information  relating to the  registrant,  including its  consolidated
subsidiaries, is made known to us by others within those entities,  particularly
during the period in which this report is being prepared;

b) Evaluated  the  effectiveness  of the  registrant's  disclosure  controls and
procedures and presented in this report our conclusions  about the effectiveness
of the disclosure  controls and procedures,  as of the end of the period covered
by this report based on such evaluation; and

c) Disclosed in this report any change in the registrant's internal control over
financial  reporting that occurred  during the  registrant's  most recent fiscal
quarter (the registrant's fourth fiscal quarter in the case of an annual report)
that has materially affected,  or is reasonably likely to materially affect, the
registrant's internal control over financial reporting; and

5. I have disclosed, based on my most recent evaluation of internal control over
financial  reporting,  to the  registrant's  auditors and the audit committee of
registrant's   board  of  directors  (or  persons   performing   the  equivalent
functions):

a) All  significant  deficiencies  and  material  weaknesses  in the  design  or
operation of internal  control over  financial  reporting  which are  reasonably
likely  to  adversely  affect  the  registrant's  ability  to  record,  process,
summarize and report  financial  information;  and





b) Any  fraud,  whether  or not  material,  that  involves  management  or other
employees who have a significant role in the registrant's  internal control over
financial reporting.

December 31, 2003

By: /s/  DAVID ROFF
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   David Roff
   President, CEO, Chairman of the Board, Sole Director and CFO