As filed with the SEC on April 15, 2005

 
 
 
 

Securities and Exchange Commission

Washington, D.C. 20549

 
 

SCHEDULE 13D

 
 

Under the Securities Exchange Act of 1934

 
 

Tri-Valley Corporation

(Name of Issuer)

 
 

Common Stock

(Class of Securities)

 
 

895735-10-8

(CUSIP Number)

 

G. Thomas Gamble

PO Box 670

St. Helena, CA 94574

(707) 963-5627

(Name, Address and Telephone Number of Person

Authorized to Receive Notices and Communications)

 
 

February 25, 2005

(Date of Event which Requires Filing of this Statement)

 
 

If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(b)(3) or (4), check the following box   [   ].

 

CUSIP No. 895735-10-8

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(1)     Names of Reporting Persons:

          G. Thomas Gamble

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(2)     Check the appropriate box if a member of a group:

          (a)  [   ]

          (b)  [   ]

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(3)     SEC Use Only

 

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(4)     Source of Funds:

          PF

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(5)     Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e).

          [   ]

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(6)     Citizenship or place of organization:

          USA

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Number of shares beneficially owned by each person with:

 

(7)

Sole voting power

G. Thomas Gamble

1,250,000 Shares Common

  

  

  

 

(8)

Shared voting power  

None

  

  

  

  

  

(9)

Sole dispositive power

G. Thomas Gamble

1,250,000 Shares Common

  

 

  

 

(10)

Shared dispositive power

None

  

       

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(11)     Aggregate amount beneficially owned by each reporting person.

           G. Thomas Gamble: 1,250,000 Shares Common

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(12)     Check if the aggregate amount in row (11) excludes certain shares

            [   ]

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(13)     Percent of class represented by amount in Row (11)

            6%

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(14)     Type of reporting person:

            IN

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Item 1          Security and Issuer

 

Common Stock

Tri-Valley Corporation

5555 Business Park South

Suite 200

Bakersfield, California 93309

 

Item 2          Identity and Background

 

(a)     G. Thomas Gamble

 

(b)     PO Box 670, St. Helena, CA 94574

 

(c)     Investor

 

(d)     None

 

(e)     None

 

(f)     USA

 

Item 3          Source and Amount of Funds or Other Consideration

 

Personal funds: $937,500.00

Item 4          Purpose of Transaction

 

Made investment as part of ongoing acquisition program to potentially acquire a controlling interest in the company.

 

Item 5          Interest in Securities of the Issuer

 

The individual has accumulated common stock over time. The shares described in this schedule have been purchased directly from the company. The most recent transaction wherein ownership of the common stock exceeded 5% of outstanding shares was February 25, 2005. The transaction was the exercise of previously acquired option rights. The exercise price of $7.50 per share purchased 125,000 shares.

 

The latest transaction brings the individual's aggregate ownership to 1,250,000 shares of common stock. This represents 5.6% of the 22,247,052 Tri-Valley shares known by the individual to be outstanding on the date of this filing.

 
 

Item 6          Contracts, Arrangements, Understandings or Relationships with Respect to
                     Securities of the Issuer

 

NA

 

Item 7          Exhibits

 

NA

 

Signatures

 
 

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

 

                            

G. Thomas Gamble

 

                            

 

Date:  3-31-05

                            

/s/ G. Thomas Gamble