**Exhibit 31**

**CERTIFICATION**

I, Mike Ulrich, as Vice President and Trust Officer ofJPMorgan Chase Bank, N.A., the Trustee, certify that:

1.                 I have reviewedthis quarterly report on Form 10-Q of Santa Fe Energy Trust, forwhich JPMorgan Chase Bank, N.A. serves as Trustee;

2.                 Based on myknowledge, this report does not contain any untrue statement of a material factor omit to state a material fact necessary to make the statements made, inlight of the circumstances under which such statements were made, not misleadingwith respect to the period covered by this report;

3.                 Based on myknowledge, the financial statements, and other financial information includedin this report, fairly present in all material respects the financialcondition, distributable income and changes in trust corpus of the registrantas of, and for, the periods presented in this report;

4.                 I am responsiblefor establishing and maintaining disclosure controls and procedures (as definedin Exchange Act Rules 13a-15(e) and 15d-15(e)) andinternal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and15d-15(f)), or for causing such procedures to be established andmaintained, for the registrant and I have:

(a)          designed such disclosurecontrols and procedures, or caused such disclosure controls and procedures tobe designed under my supervision, to ensure that material information relatingto the registrant, including its consolidated subsidiaries, is made known to meby others within those entities, particularly during the period in which thisreport is being prepared;

(b)         designed such internalcontrol over financial reporting, or caused such internal control overfinancial reporting to be designed under my supervision, to provide reasonableassurance regarding the reliability of financial reporting and the preparationof financial statements for external purposes in accordance with generallyaccepted accounting principles;

(c)          evaluated theeffectiveness of the Trustee’s disclosure controls and procedures and presentedin this report my conclusions about the effectiveness of the disclosurecontrols and procedures, as of the end of the period covered by this reportbased on such evaluation; and

(d)         disclosed in this reportany change in the Trust’s internal control over financial reporting thatoccurred during the registrant’s most recent fiscal quarter (the registrant’sfourth fiscal quarter in the case of an annual report) that has materiallyaffected, or is reasonably likely to materially affect, the Trust’s internalcontrol over financial reporting; and

5.                 I have disclosed,based on my most recent evaluation of internal control over financialreporting, to the registrant’s auditors:

(a)          all significantdeficiencies and material weaknesses in the design or operation of the Trust’sinternal control over financial reporting which are reasonably likely toadversely affect the registrant’s ability to record, process, summarize andreport financial information; and

(b)         any fraud, whether or notmaterial, that involves any management or other employees who have asignificant role in the Trustee’s internal control over financial reporting;and

In giving the foregoing certifications, I have reliedto the extent I consider reasonable on information provided to me by DevonEnergy Production Company, L.P.

Date: November 4,2005

|        | /s/ MIKE  ULRICH                 |
|--------|----------------------------------|
|   | Mike Ulrich                      |
|   | Vice President and Trust Officer |

 

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