**Exhibit 31.1** **Certifications    Pursuant to 17 CFR    Section 240.13a-14**     I, Richard M. Osborne, Chairman of the Board and Chief Executive    Officer of John D. Oil and Gas Company certify that:      1.     I have reviewed this annual report on    Form 10-KSB    of John D. Oil and Gas Company;      2.     Based on my knowledge, this annual 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 annual    report;      3.     Based on my knowledge, the financial statements, and other    financial information included in this annual 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 annual report;      4.     The registrant’s other certifying officers 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)    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.     The registrant’s other certifying officer(s) and I have    disclosed, based on our 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 function):      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.     Date: March 29, 2006     By:     /s/  Richard M. Osborne     Richard M. Osborne*Chairman of the Board and Chief Executive Officer*    (Principal Executive Officer)