EXHIBIT 31.1:

I, William G. Watson, of Texas Vanguard Oil Company, certify that:

1. I have reviewed this annual report on Form 10-KSB of Texas Vanguard Oil
Company;

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 small
business issuer as of, and for, the periods presented in this report;

4. The small business issuers other certifying officer(s) and I are responsible
for establishing and maintaining disclosure controls and procedures (as defined
in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over
financial reporting (as defined in Exchange Act Rules 13a-15(f)and 15d-15(f))
for the small business issuer 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 small business issuer,
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) designed such internal control over financial reporting, or caused
such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of
financial reporting and the preparation of financial statements for external
purposes in accordance with generally accepted accounting principles;

	c) evaluated the effectiveness of the small business issuers 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

	d) disclosed in this report any change in the small business issuers
internal control over financial reporting that occurred during the registrants
most recent fiscal quarter (the small business issuers fourth fiscal quarter
in the case of an annual report) that has materially affected, or is reasonably
likely to materially affect, the small business issuers internal control over
financial reporting; and

5. The small business issuers other certifying officer(s) and I have disclosed,
based on our most recent evaluation of internal control over financial
reporting, to the small business issuers auditors and the audit committee of
the small business issuers 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 small business issuers 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 small business issuers
internal control over financial reporting.


March 28, 2008


By /s/ William G. Watson
------------------------
William G. Watson, President
Chief Executive Officer
and Chief Financial Officer