SECURITIES AND EXCHANGE COMMISSION

                            WASHINGTON, D. C.  20549




                                    FORM 8-K


                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(D) OF THE

                         SECURITIES EXCHANGE ACT OF 1934




Date  of  Report  (Date  of  earliest  event  reported)    May  29,  2003


                             TRI-VALLEY CORPORATION
                             ----------------------
          (Exact  name  of  registrant  as  specified  in  its  charter)


             DELAWARE                         0-6119             84-0617433
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(State  or  other  jurisdiction                (Commission       (IRS  Employer
    of  incorporation)                       File  Number)   Identification no.)


 5555  Business  Park  South,  Suite  200,  Bakersfield,  CA  93309
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   (Address  of  principal  executive  office)              (Zip  code)



Registrant's  telephone  number,  including  area  code:  (661)  864-0500
                                                 -----------------------------


ITEM  7  FINANCIAL  STATEMENTS  AND  EXHIBITS
-------

(c)     Exhibits

99.1  Press  Release  dated  May  29,  2003
BAKERSFIELD,  CA,  MAY  29,  2003  --  Tri-Valley  Corporation  (OTC  BB:  TRIL)

Tri-Valley  Corporation has received the log interpretation on its Sunrise-Mayel
No.  2HR gas well from a worldwide independent engineering firm headquartered in
Houston,  Texas,  which  indicates  a  65%  greater  extent of gross hydrocarbon
saturation than the 2,000 feet (610 meters) originally reported in the Company's
May  22,  2003  press  release.

The new information indicates that the full 3,300 feet (1,000 meters) of lateral
bore  with  70%  hydrocarbon  saturation previously reported has now been double
verified.  The  Company  has scheduled a one million pound hydraulic fracture of
the  entire  3,300-foot  (1,000-meter)  horizontal  portion  of  the  formation
surrounding  the  wellbore  for  June  24,  2003.

While the wellbore has yet to demonstrate commercial deliverability, the Company
considers  this  measured  increase  and  other  positive  measurements  to be a
material  event.  The  Company advises that while the suite of mud, electric and
density neutron logs and other indicators are believed to be reliable , they are
inferred  data  which do not, in and of themselves, guarantee commercial success
at  this  stage.

THIS  PRESS  RELEASE  CONTAINS FORWARD-LOOKING STATEMENTS THAT INVOLVE RISKS AND
UNCERTAINTIES.  ACTUAL  RESULTS,  EVENTS  AND  PERFORMANCE COULD VARY MATERIALLY
FROM  THOSE CONTEMPLATED BY THESE FORWARD-LOOKING STATEMENTS WHICH INCLUDES SUCH
WORDS  AND  PHRASES  AS  EXPLORATORY,  WILDCAT,  PROSPECT, SPECULATES, UNPROVED,
PROSPECTIVE,  VERY  LARGE, EXPECT, POTENTIAL, ETC.  AMONG THE FACTORS THAT COULD
CAUSE  ACTUAL RESULTS, EVENTS AND PERFORMANCE TO DIFFER MATERIALLY ARE RISKS AND
UNCERTAINTIES  DISCUSSED  IN THE COMPANY'S QUARTERLY REPORT ON FORM 10-Q FOR THE
QUARTER  ENDED  MARCH  31, 2003, AND THE ANNUAL REPORT ON FORM 10-K FOR THE YEAR
ENDED  DECEMBER  31,  2002.





                                   SIGNATURES


Pursuant  to  the  requirements  of  the  Securities  Exchange  Act of 1934, the
Registrant  has  duly  caused  this  report  to  be  signed on its behalf by the
undersigned  hereunto  duly  authorized.


                             TRI-VALLEY CORPORATION





May  29,  2003                /s/  Thomas  J.  Cunningham
                              ---------------------------
                              Thomas  J.  Cunningham
                              Chief  Financial  Officer